Acces PCIe-DA16-6 User manual

10623 Roselle Street, San Diego, CA 92121 •[phone] •FAX [phone]
[e-mail] •www.accesio.com
MODEL PCIe-DA16-6 Analog Output
Multifunction Board
USER MANUAL
FILE: PCIe-DA16-6.A3a

Manual PCIe-DA16-6
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Notice
The information in this document is provided for reference only. ACCES does not assume any
liability arising out of the application or use of the information or products described herein. This
document may contain or reference information and products protected by copyrights or patents
and does not convey any license under the patent rights of ACCES, nor the rights of others.
Copyright by ACCES I/O Products Inc, 10623 Roselle Street, San Diego, CA 92121. All rights
reserved.
WARNING!!
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE
COMPUTER POWER OFF. ALWAYS TURN COMPUTER POWER OFF BEFORE
INSTALLING A CARD. CONNECTING AND DISCONNECTING CABLES, OR
INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON
MAY CAUSE DAMAGE TO THE I/O CARD AND WILL VOID ALL WARRANTIES,
IMPLIED OR EXPRESSED.

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Warranty
Prior to shipment, ACCES equipment is thoroughly inspected and tested to applicable
specifications. However, should equipment failure occur, ACCES assures its customers that
prompt service and support will be available. All equipment originally manufactured by ACCES
which is found to be defective will be repaired or replaced subject to the following
considerations.
Terms and Conditions
If a unit is suspected of failure, contact ACCES' Customer Service department. Be prepared to
give the unit model number, serial number, and a description of the failure symptom(s). We may
suggest some simple tests to confirm the failure. We will assign a Return Material Authorization
(RMA) number which must appear on the outer label of the return package. All
units/components should be properly packed for handling and returned with freight prepaid to
the ACCES designated Service Center, and will be returned to the customer's/user's site freight
prepaid and invoiced.
Coverage
First Three Years: Returned unit/part will be repaired and/or replaced at ACCES option with no
charge for labor or parts not excluded by warranty. Warranty commences with equipment
shipment.
Following Years: Throughout your equipment's lifetime, ACCES stands ready to provide on-site
or in-plant service at reasonable rates similar to those of other manufacturers in the industry.
Equipment Not Manufactured by ACCES
Equipment provided but not manufactured by ACCES is warranted and will be repaired
according to the terms and conditions of the respective equipment manufacturer's warranty.
General
Under this Warranty, liability of ACCES is limited to replacing, repairing or issuing credit (at
ACCES discretion) for any products which are proved to be defective during the warranty
period. In no case is ACCES liable for consequential or special damage arriving from use or
misuse of our product. The customer is responsible for all charges caused by modifications or
additions to ACCES equipment not approved in writing by ACCES or, if in ACCES opinion the
equipment has been subjected to abnormal use. "Abnormal use" for purposes of this warranty is
defined as any use to which the equipment is exposed other than that use specified or intended
as evidenced by purchase or sales representation. Other than the above, no other warranty,
expressed or implied, shall apply to any and all such equipment furnished or sold by ACCES.

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Table of Contents
Chapter 1: Introduction................................................................................................. 5
Features...................................................................................................................... 5
Applications ............................................................................................................... 5
Functional Description.............................................................................................. 5
Analog Outputs.......................................................................................................... 5
Digital I/O Lines.......................................................................................................... 6
Figure 1-1: Block Diagram ...................................................................................... 6
Ordering Guide .......................................................................................................... 6
Model Options............................................................................................................ 6
Included with your board .......................................................................................... 7
Optional Accessories ................................................................................................ 7
Chapter 2: Installation................................................................................................... 8
Windows..................................................................................................................... 8
Linux ........................................................................................................................... 8
Hardware Installation ................................................................................................ 9
Chapter 3: Option Selection ....................................................................................... 10
Output Ranges ......................................................................................................... 10
Table 3-1: Range Switches and Codes ................................................................. 10
Figure 3-1: Option Selection Map.......................................................................... 10
Chapter 4: Address Selection .................................................................................... 11
Chapter 5: Programming ............................................................................................ 12
Table 5-1: Register Map ........................................................................................ 13
Table 5-2: DAC Data Format ................................................................................. 13
Programming the Digital I/O Circuit ....................................................................... 14
Table 5-3: Control Register Bit Assignments ......................................................... 14
Chapter 6 Software...................................................................................................... 15
Chapter 7: Calibration................................................................................................. 16
Table 7-1: Calibration constant locations in EEPROM at BAR[3] “CalBase” ......... 16
Table 7-2: Range Data Per Channel Locations ..................................................... 17
Chapter 8: Connector Pin Assignments.................................................................... 18
Table 8-1: P2 DAC Pin Assignments DB37M........................................................ 18
Figure 8-1: Field Wiring Diagrams......................................................................... 19
Chapter 9 Specifications ............................................................................................ 20
Customer Comments .................................................................................................. 22

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Chapter 1: Introduction
Features
•6-, 4- and 2 channel, 16- or 12-bit digital-to-analog outputs PCI Express card
•Software / Hardware compatible with PCI-DA12-6, 4 & 2, >125k conversions per channel
•Dip-switch selectable analog output ranges of 2.5V, 5V, 10V, ±2.5V, ±5V, ±10V, 4-20mA
•Individual or simultaneous update of the DACs
•DACs restricted at power-on to prevent spurious outputs
•16-bits of digital I/O
•VCCIO voltage available to the user via 0.5A resettable fuse
•12V available to the user via 0.2A resettable fuse
•RoHS Available
•Wind River VxWorks support available
Applications
Optical Networking, Instrumentation, Multichannel Data Acquisition and system
monitoring, Automatic Test Equipment, Process Control and Industrial Automation,
Power line simulation and stimulation. light control, motion control, and more.
Functional Description
Analog Outputs
These cards are 6.6” x 3.875” and can be installed in any PCI Express slot. They contain
either six, four, or two double-buffered digital-to-analog converters (DACs) that provide
independent analog output channels of 12- or 16-bit resolution. Each analog output
channel can be configured for ranges of:
0V to +2.5V
0V to +5V
0V to +10V
-2.5V to +2.5V
-5V to +5V
-10V to +10V
4mA to 20mA sink
The analog output channels have a double-buffered input for single-step update and
each is addressed at its own I/O location. Type DAC80504 quad DAC chips are used.
Data is transferred to the FPGA's local registers a byte or word at a time and then
transferred to the DAC buffer registers a word at a time. The analog outputs can then be
updated by transferring this data to the DAC active registers either independently or
simultaneously by command.
In order to prevent excessive voltage output to external circuits, the card contains
automatic circuits that set D/A outputs to 0V at system power-on. Upon power-up, the
card is in the Simultaneous Update mode. After all DACs have been loaded with the
desired values, a software command can be used to switch the reference voltage to its
normal value.

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Digital I/O Lines
These cards provide 16 bits of parallel digital input/output. They can be programmed as
inputs or outputs on the two 8-bit ports designated Ports A and B.
Each I/O line is buffered by a type 74LVC8T245 buffer transceiver capable of sourcing
or sinking 32mA (w/ 5V VCCIO), or 24mA (w/ 3.3V VCCIO). Pull-ups on the card assure
that there are no erroneous outputs at power up. The lines initialize in the input mode.
Figure 1-1: Block Diagram
Ordering Guide
•PCIe-DA16-6 Six 16-Bit Analog Outputs
•PCIe-DA16-4 Four 16-Bit Analog Outputs
•PCIe-DA16-2 Two 16-Bit Analog Outputs
•PCIe-DA12-6 Six 12-Bit Analog Outputs
•PCIe-DA12-4 Four 12-Bit Analog Outputs
•PCIe-DA12-2 Two 12-Bit Analog Outputs
Model Options
•-RoHS RoHS compliant version
•-T Extended operating temperature -40 to +85C

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Included with your board
The following components are included with your shipment. Please take time now to
ensure that no items are damaged or missing.
PCIe-DA1x-x Board
Optional Accessories
ADAP37F-MINI Direct Plug Spring Cage Terminal Adaptor
STB-37 Screw Terminal Board
CAB37-18 Ribbon Cable Accessory, 18”

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Chapter 2: Installation
The software provided with this board is available to download via the product page for
free and must be installed onto your hard disk prior to use.
Windows
1. Visit the product web page at https://accesio.com/PCIe-DA16-6
2. Download the Software Package from the Manuals / Software tab
3. Run the Install program and follow the on-screen prompts to install the software
for this board
Linux
1. Please visit https://github.com/accesio for information on installing under Linux.
Caution! * ESD A single static discharge can damage your card and cause
premature failure! Please follow all reasonable precautions to
prevent a static discharge such as grounding yourself by
touching any grounded surface prior to touching the card.

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Hardware Installation
1. Make sure to set switches and jumpers from either the Option Selection section
of this manual or from the suggestions of the Settings Program.
2. Do not install card into the computer until the software has been fully installed.
3. Turn OFF computer power AND unplug AC power from the system.
4. Remove the computer cover.
5. Carefully install the card in any available PCI Express expansion slot (you may
need to remove a backplate first).
6. Inspect for proper fit of the card and tighten the mounting bracket screw. Make
sure that the card mounting bracket is properly screwed into place and that there
is a positive chassis ground.
7. Install an I/O cable (or an ADAP37F-MINI) onto the card’s bracket-mounted male
connector.
8. Replace the computer cover and turn ON the computer which should auto-detect
the card (depending on the operating system) and automatically finish installing
the drivers.
9. Run AIOWDMFind.exe to complete installing the card into the registry (for
Windows only) and to determine the assigned resources.
10. Run one of the provided sample programs that was copied to the newly created
card directory to test and validate your installation.
If the card is not detected, go to Device Manager and check for the card showing up as
an unknown "PCI Device" in “Other devices”; if you find it, right-click and "Update Driver"
and search automatically; this should resolve any issues.

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Chapter 3: Option Selection
Voltage output ranges are determined by switch settings as described in the following
paragraphs. The method to update D/A outputs is software programmable as described
in Chapter 5, Programming.
Output Ranges
There is a four-position slide switch (OFF = DOWN position / ON = UP position) with
each individual position slide notated with 1, 2, 3 or 4. Each four-position slide switch is
associated with each DAC channel to make voltage range selection: switches S1
(Channel 0) through S6 (Channel 5) as depicted in the following table.
Voltage Range
1
2
3
4
Range Code
0 to +2.5V
OFF
ON
ON
OFF
1
0 to +5V
OFF
OFF
OFF
OFF
0
0 to +10V
OFF
OFF
ON
OFF
2
-2.5V to +2.5V
ON
ON
ON
OFF
4
-5V to +5V
ON
OFF
OFF
OFF
3
-10V to +10V
ON
OFF
ON
OFF
5
4 mA to 20 mA
OFF
OFF
OFF
ON
6
Table 3-1: Range Switches and Codes
Figure 3-1: Option Selection Map

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Chapter 4: Address Selection
These cards use three address spaces. These are defined in the Port Address Selection
Table in the Programming section of this manual.
PCI Express architecture is inherently plug-and-play. This means that the BIOS or
Operating System determines the resources assigned to PCI Express cards rather than
you selecting those resources with switches or jumpers. As a result, you cannot set or
change the card's base address or IRQ level. You can only determine what the system
has assigned.
To determine the base address that has been assigned, run the AIOWDMFind.EXE
utility program provided. This utility will display a list of all of the cards detected on the
PCI Express bus, the addresses assigned to each function on each of the cards, and the
respective IRQs.
Alternatively, some operating systems can be queried to determine which resources
were assigned. In these operating systems, you can use either AIOWDMFind or the
Device Manager utility from the System Properties Applet of the control panel. The card
is installed in the Data Acquisition class of the Device Manager list. Selecting the card,
clicking Properties, and then selecting the Resources Tab will display a list of the
resources allocated to the card.
If you want to determine the base address and IRQ yourself, use the following
information.
The Vendor ID for these cards is 494F. (ASCII for "IO")
The Device ID for the 16-bit 6 channel card is 48e0h.
The Device ID for the 16-bit 4 channel card is 48d8h.
The Device ID for the 16-bit 2 channel card is 48d0h.
The Device ID for the 12-bit 6 channel card is 48a0h.
The Device ID for the 12-bit 4 channel card is 4898h.
The Device ID for the 12-bit 2 channel card is 4890h.

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Chapter 5: Programming
The cards’ DACs and Digital I/O use 18 I/O addresses. Programming these cards is very
straightforward as there are only two operating modes and four range-selection switches
per channel. The basic operation of a Digital-to-Analog card is to write a 16-bit value to a
Digital to Analog Converter (DAC) where it is buffered and loaded by an update
command to a DAC active register. Outputs of that register control a "ladder" network
which produces the analog output. The output voltage range is defined by settings of the
range-selection switches for that channel. For example:
double spanVolts = 10.0; // for ±5V; use "20.0" for ±10
double offsetVolts = spanVolts / 2; //use "0.0" for all unipolar ranges.
double targetVolts = 1.3; // change to any desired output voltage
counts = (targetVolts + offsetVolts) / spanVolts * 65536.0;
RelOutport(DeviceIndex, DAC * 2, counts);
Upon power-up, or hardware reset, the DAC registers are restricted to a safe value and
the card is set in Simultaneous Update mode.
Simultaneous Update Mode is the power-up or default mode of operation for the DAC
card. When a value is written to a DAC address the output does not change until an
output update is commanded via a read from Base Address+8. (Alternatively, a read of
Base Address+A will update the DAC registers and switch the board to Automatic
Update Mode.) While in Simultaneous Update Mode, a single read will load all DAC
registers with the value waiting in the pre-load registers, causing all outputs to be
updated and changed simultaneously. In other words, the outputs of all D/As may be
updated simultaneously by first enabling simultaneous updating for all outputs,
preloading the low and high bytes of each DAC, and then initiating a simultaneous
update by software command or external update falling edge.
Automatic Update Mode is the configuration that changes a DAC output immediately
after the high-byte of the new value is written to the DAC address.
(Each channel is updated individually when new data are written to the related high-byte
base address)
If the card is in Simultaneous Update Mode a read of Base Address+2 will change the
card back to Automatic Update Mode without updating the outputs. A read of Base
Address+A will update all outputs simultaneously and then place the card in Automatic
Update Mode.
Restrict-Output-Voltage limits the output of all DAC channels to 0V and is active at
power-up. Since the pre-load register defaults to its min-scale value, known values can
be written to the preload registers before using a "Clear Restrict-Output-Voltage"
command. Those written values will then be output to the connector when a "Clear
Restrict-Output-Voltage" command is issued by a read of Base Address +F.
External Trigger Update Mode allows a negative level at pin 25 of the I/O connector to
cause the DACs to be updated. A read of Base Address +5 will enable this mode, a read
of Base Address +6 will disable it. Note that this pin is shared with the External Interrupt
signal.

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External Interrupt is a negative edge at pin 25 and is latched until cleared by a read of
Base Address +4. The interrupt is enabled by a read of Base Address+3 and powers up
disabled. After being cleared the interrupt must be re-enabled.
Address hex
Write
Read
Base + 0
DAC 0 Low Byte
Place card in Simultaneous Mode without updating outputs.
Base + 1
DAC 0 High Byte
Base + 2
DAC 1 Low Byte
Release card from Simultaneous Mode without updating outputs.
Base + 3
DAC 1 High Byte
Enable Interrupts
Base + 4
DAC 2 Low Byte
Disable Interrupts
Base + 5
DAC 2 High Byte
Enable Timer Initiated DAC Update
Base + 6
DAC 3 Low Byte
Disable Timer Initiated DAC Update
Base + 7
DAC 3 High Byte
Base + 8
DAC 4 Low Byte
Update all outputs and place card in Simultaneous Mode.
Base + 9
DAC 4 High Byte
Base + A
DAC 5 Low Byte
Update all outputs and release card from Simultaneous Mode.
Base + B
DAC 5 High Byte
Base + E
Restrict-Output-Voltage (Disables voltage reference)
Base + F
Clear Restrict-Output-Voltage (Allows full operating output voltage).
Base + 20
Digital I/O Port A, Output
Digital I/O Port A, Input
Base + 21
Digital I/O Port B, Output
Digital I/O Port B, Input
Base + 23
Digital I/O Control Byte
Table 5-1: Register Map
Restrict-Output-Voltage limits the output of all DAC channels and is active at power-up.
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Low Byte
B7
B6
B5
B4
B3
B2
B1
B0
High Byte
*B15
*B14
*B13
*B12
B11
B10
B9
B8
Table 5-2: DAC Data Format
* B15->B12 are ignored by 12-bit models
For Unipolar ranges, data is in true binary form.
0000
0000
0000
0000
=
Zero (Low Scale)
1000
0000
0000
0000
=
½ Scale
1111
1111
1111
1111
=
Full Scale
|
|
MSB or B15


B0 or LSB
For Bipolar ranges, data are in offset binary form. (Same as above)

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Programming the Digital I/O Circuit
The digital I/O circuit is comprised of a direction control latch, and two bi-directional
buffers with 10K pull-ups.
The cards are designed to operate as follows:
a. There are two 8-bit ports (A and B)
b. Either 8-bit port can be configured as an input or an output
c. Outputs are latched
d. Inputs are not latched
e. The card is initialized in the input mode
A write-only, 8-bit register is used to set the mode and direction of the ports. At Power-
Up or Reset, all I/O lines are set as inputs. Each GROUP should be configured during
initialization by writing to the control registers even if the ports are going to be used as
inputs. The DIO Direction-control register is located at base address +23. Bit
assignments in each of these control registers are as follows:
Bit
Assignment
Function
D0
Reserved, always use set to zero
Reserved, always use set to zero
D1
Port B
1 = Input, 0 = Output
D2
Reserved, always use set to zero
Reserved, always use set to zero
D3
D4
Port A
1 = Input, 0 = Output
D5,D6
Reserved, always use set to zero
Reserved, always use set to zero
D7
Mode Set (see note 1)
Scratchpad
Table 5-3: Control Register Bit Assignments
Note 1: This bit is a read/write scratchpad

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Chapter 6 Software
These cards are straightforward to program. The following example is in C, but sample
code is also provided on the CD in Pascal and four Windows languages: Delphi,
VisualBASIC, and Visual C++.
To output an analog value with 16-bit resolution, a corresponding decimal number N
between 0 and 65535 is calculated (216 = 65536).
double spanVolts = 10.0; // for ±5V; use "20.0" for ±10
double offsetVolts = spanVolts / 2; //use "0.0" for unipolar
double targetVolts = 1.3; // change to any desired output voltage
counts = (targetVolts + offsetVolts) / spanVolts * 65536.0;
Next the data are written to the selected analog output channel. (See the preceding I/O
Address Map.)
RelOutPort(DeviceIndex, DAC * 2, counts);
For simplicity, it was assumed that the simultaneous-update capability was not used.
Examples of this routine are installed with the software package along with examples in
other languages.
See Chapter 7: Calibration for the equivalent command for outputting calibrated data.

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Chapter 7: Calibration
Periodic calibration of these cards is recommended if they are used in extreme
environmental conditions. The card uses very stable components but high-low
temperature cycles might result in slight analog output errors.
The following equation is used with 16-bit cards:
Calibrated = ((4096 – LowAdjust - HighAdjust) / 4096) * Counts + 16 * LowAdjust
The 12-bit card is calibrated by software using the following formula:
Calibrated = ((4096 – LowAdjust - HighAdjust) / 4096) * Counts + LowAdjust
To calibrate the card, run the calibration program and follow the screen prompts. No
attempt at calibration should be made in noisy locations or with a noisy calibration setup.
The calibration program stores various data to the card to facilitate calibrating the data
output in a run-time environment. The calibration constants calculated during calibration
are stored in an EEPROM located at BAR[3], which can be determined using the
QueryBARBase(iCard, 3, pCalBase) function. The EEPROM contains two values per
channel per range. The LowAdjust and HighAdjust calibration constants are stored for
each channel at each range code (0-6). These constants can be used during normal
operation to calibrate the output data in real-time. Refer to the installed samples for an
example of using this data.
EEPROM
Offset (hex)
Range
DAC
Calibration Constant
+00
0-5V
DAC 0
LowAdjust
+01
0-5V
DAC 0
HighAdjust
+02..3
0-5V
DAC 1
LowAdjust, HighAdjust
+4..0B
0-5V
DAC 2..5
LowAdjust, HighAdjust
+20..2B
0-2.5V
DAC 0..5
LowAdjust, HighAdjust
+40..4B
0-10V
DAC 0..5
LowAdjust, HighAdjust
+60..6B
±5V
DAC 0..5
LowAdjust, HighAdjust
+80..8B
±2.5V
DAC 0..5
LowAdjust, HighAdjust
+A0..AB
±10V
DAC 0..5
LowAdjust, HighAdjust
+C0..CB
4-20mA
DAC 0..5
LowAdjust, HighAdjust
Table 7-1: Calibration constant locations in EEPROM at BAR[3] “CalBase”
The LowAdjust and HighAdjust constants can be read from the EEPROM using the
following code:
LowAdjust = inportb((CalBase + (DAC * 2) + (RangeCode * 32)));
HighAdjust = inportb((CalBase + (DAC * 2) + (RangeCode * 32)) + 1);
The current Range Code configured at the per-channel range switches can be read from
the BAR[3] “CalBase” registers, starting at +F0.

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The value stored is a number from 0 to 6, representing the 7 ranges (as shown in the
table below). These are read from the range selection switches in real time.
Byte Address
Channel
Value
Range
Base + F0h
Channel 0
0
0 - 5V
Base + F1h
Channel 1
1
0 - 2.5V
Base + F2h
Channel 2
2
0 - 10V
Base + F3h
Channel 3
3
-5 - +5V
Base + F4h
Channel 4
4
-2.5 - +2.5V
Base + F5h
Channel 5
5
-10 - +10V
6
4 to 20mA
Table 7-2: Range Data Per Channel Locations
The currently configured Range Code for each DAC can be read using the
following code:
RangeCode = inportb(CalBase + 0xF0 + DAC);

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Chapter 8: Connector Pin Assignments
All signals are accessible via a male 37-pin D type connector.
Pin
Function
Pin
Function
1
Analog DAC 5 Output
20
Analog Ground
2
Analog DAC 4 Output
21
Analog Ground
3
Digital I/O Port B - Bit 7
22
Ground
4
Digital I/O Port B - Bit 6
23
Ground
5
Digital I/O Port B - Bit 5
24
Ground
6
Digital I/O Port B - Bit 4
25
External Interrupt / DAC Update
7
Digital I/O Port B - Bit 3
26
+VCCIO, fused
8
Digital I/O Port B - Bit 2
27
+12V, fused
9
Digital I/O Port B - Bit 1
28
No connection
10
Digital I/O Port B - Bit 0
29
No connection
11
Ground
30
Digital I/O Port A - Bit 7
12
Analog DAC 3 Output
31
Digital I/O Port A - Bit 6
13
Analog Ground
32
Digital I/O Port A - Bit 5
14
Analog DAC 2 Output
33
Digital I/O Port A - Bit 4
15
Analog Ground
34
Digital I/O Port A - Bit 3
16
Analog DAC 1 Output
35
Digital I/O Port A - Bit 2
17
Analog Ground
36
Digital I/O Port A - Bit 1
18
Analog DAC 0 Output
37
Digital I/O Port A - Bit 0
19
Analog Ground
Table 8-1: P2 DAC Pin Assignments DB37M

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Figure 8-1: Field Wiring Diagrams
Caution!
Do not connect current loops in a DAC that is set to voltage mode. The loop
supply can destroy the DAC.

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Chapter 9 Specifications
Analog Outputs
●Channels: 6, 4 or 2
●Resolution: 16 bits, 12 bits
●Unipolar Ranges: 0-2.5V, 0-5V, 0-10V
●Bipolar Ranges: ±2.5V, ±5.0V, ±10.0V
●Current Range: 4 to 20 mA (external excitation of 8-36VDC)
●Output Drive: 5 mA maximum
●Output Resistance: Less than 0.1 ohm
●Relative Accuracy: ± 1 LSB max, ± ½ LSB typical
●Diff. Linearity: ± ½ LSB integral non-linearity
●Monotonicity: 16 bits over operating temp
●Settle time: 5 μsec ¼ to ¾ and ¾ to ¼ scale, to ±2 LSB
Digital I/O
●Lines 16: Ports A and B
●Logic Level: VCCIO jumper selectable
●Pull-up/down 10k ohm (pulled up by default)
Logic Levels VCCIO = 5V
Low Inputs ≤1.5V ≤2uA
High Inputs ≥3.5V ≤2uA
Low Outputs ≤0.55V 32mA
High Outputs ≥3.8V 32mA
Logic Levels VCCIO = 3.3V
Low Inputs ≤0.8V ≤2uA
High Inputs ≥2.0V ≤2uA
Low Outputs ≤0.55V 24mA
High Outputs ≥2.4V 24mA