SILION SIM7400E User manual

SIM7400 User Manual
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SIM7400E
User Manual
Rev 1
Beijing Xinlian Chuangzhan
Electronic Technology Co., LTD
Tel:[phone]
http://www.silion.com.cn

SIM7400 User Manual
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Directory
1. A revision history ..................................................................................................................... 3
2. Introduction ............................................................................................................................ 4
3. Introduction ............................................................................................................................ 4
4. Electrical characteristics ........................................................................................................... 5
5. Pin configuration and function Description .................................................................................6
6. Application Information ............................................................................................................8
7. Physical Properties ................................................................................................................... 9

SIM7400 User Manual
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1. A revision history
The file
number
The
version
number
Artificial
person /
The
modifier
Proposed/revis
ed date
Change the
reason
Change the content
V1.0
2022-03-09
The initial
release
No

SIM7400 User Manual
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2. Product introduction
16-port module SIM7400E is a high-performance UHF 16-port RFID read-write module
developed by the core Technology team based on IMPINJ new-generation RF chip E710. It is
designed to meet the requirements of new retail, unmanned retail, RFID smart cabinet, RFID
bookshelf and other applications that need to connect multiple antennas at the same time. The
SIM7400 module provides eight SMA antenna interfaces and supports rf output up to 33dBm. It can
quickly read multiple labels and is the preferred choice for equipment in asset management,
unmanned retail and new retail industries.
3. Product features
IMPINJ new generation E710 ULTRA high frequency radio reader chip, high sensitivity, wide
reading range, low power consumption, strong performance.
Fast reading speed, stable reading, multi-label anti-collision ability, long reading distance, using
8dBi antenna, the reading distance is more than 12 meters, multi-label reading speed, up to 900 /
second.
High-speed 16 antenna polling mode, the polling time of each antenna can be set separately,
the 8 antennas can be set different RF output power, reading range is wider, more applicable
scenarios.
Module support label RSSI detection, support antenna connection status detection, support
working temperature detection, a variety of data detection is more convenient for users to use
efficiently; The module can work stably in the ambient temperature of -20℃ to +50℃, support
stably in the ambient humidity of 5%-95%, efficient and stable performance, can be applied to a
variety of harsh working environment.

SIM7400 User Manual
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4. Electrical characteristics
parameter
conditions
min
type
max
unit
Frequency
Frequency range
According Customization
840
960
MHz
Frequency step value
According Customization
250/500
KHz
output
output power
5
33
dBm
Output power accuracy
+/- 1
dB
Flatness of output power
+/- 0.2
dB
Channel segregation
32
dB
label
Reception sensitivity
-88
dBm
Inventory label peak
speed
900
tag/s
Label cache
96 bit EPC
1000
tag
Logic level
VIL，Input Low Voltage
-0.5
0.8
V
VIH，Input High Voltage
2
Vdd+0.5
V
Temperature range
Storage temperature
-40
85
℃
Working temperature
-20
50
℃
The input power
The power supply voltage
4.75
5.0
5.25
V
Can make model
40
mA
Standby mode
120
mA
Read the card model
Pout=33dBm, 50 Ω Load
2300
mA
The current will vary depending on the load antenna.

SIM7400 User Manual
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Absolute maximum rated parameter
parameter
rating
power supply voltage
+5.25V
Digital I/O Voltage to GND
3.3V
Working temperature
-20 ~ +50℃
Storage temperature
-40 ~ +85℃
5. Pin configuration and function description

SIM7400 User Manual
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The serial
number
define
1
GND
2
GND
3
VCC +5V±0.25V
4
VCC +5V±0.25V
5
GPIO1 (OUT1)
6
GPIO2 (OUT2)
7
GPIO3 (IN1)
8
GPIO4 (IN2)
9
RXD (DATA INPUT，TTLlevel)
10
TXD (DATA OUTPUT，TTLlevel)
11
NC
12
NC
13
NC
14
SHUTDOWN(Low level enable, high level power off, high level should be
greater than VCC-0.3V)
15
nRST(Reset, low level reset)

SIM7400 User Manual
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6. The application of information
The input power
A tantalum capacitor of 100~470uF is recommended for the VCC port to be filtered to reduce the
power traction caused by the rapid opening and closing of the power amplifier during RF transmissi
on. The 0.1uF and 100pF capacitors filter out the power ripple in different frequency bands respecti
vely.
Enable or reset
With built-in pull-down resistance, the module is powered on when low level is connected or suspe
nded, and the module is powered off when high level is connected (the high level should be great
er than VCC-0.3V).
NRST reset, built-in pull-up to 3.3V resistance, reset when low power.
GPIO interface
Input:
Logic low ＜0.8V minimum 0V
Logic high ＞2 V Maximum 3.3 V
Output:
Logic Low maximum 0.4V
Logic High has a minimum of 2.9V and a maximum of 3.3V
The maximum output current of the I/o port is 5mA.
The antenna connection
The output impedance of the antenna port is 50 ohm, and the recommended standing wave ratio
of the antenna is less than 1.5. Better standing wave ratio of the antenna can get better card rea
ding effect.
Communication interface (RXD/TXD)
Communication interfaces RXD and TXD are TTL levels. The default baud rate is 115200bps

SIM7400 User Manual
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7. Physical properties
Product size：181.5mm*80.3mm*8mm
weight：225.4g
8 Peripheral Design Requirement
8.1 List of applicable FCC rules：
FCC Part15 Subpart C, Section 15.247
FCC regulatory information
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any
interference received, including interference that may cause undesired operation.
Warning: changes or modifications not expressly approved by the party responsible for
compliance
could void the user’s authority to operate the equipment.
End Device Labelling
Please notice that if the FCC identification number is not visible when the module is installed
inside another device, then the outside of the device into which the module is installed must also
display a label referring to the enclosed module. This exterior label can use wording such as the
following: “Contains FCC ID: 2AQ9M-SIM7300E” any similar wording that expresses the same
meaning may be used.

SIM7400 User Manual
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RF Exposure Compliance
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
8.2 Additional testing Part 15 Subpart B disclaimer
The grantee should include a statement that the modular transmitter is only FCC authorized for
the specific rule parts (i.e.，FCC transmitter rules ) listed on the grant，and that the host product
manufacturer is responsible for compliance to any other FCC rules that apply to the host not
covered by the modular transmitter grant of certification .If the grantee markets their product as
being Part 15 Subpart B compliant( when it also contains unintentional - radiator digital circuit
y)，then the grantee shall provide a notice stating that the final host product still requires Part 15
Subpart B compliance testing with the modular transmitter installed .