STEVAL-IAC001V1 STMicroelectronics, STEVAL-IAC001V1 Datasheet - Page 2

• Manufacturer Part Number: STEVAL-IAC001V1
• Description: BOARD EVAL CENTRAL UNIT ALARM
• Manufacturer: STMicroelectronics

Specifications of STEVAL-IAC001V1

• Design Resources: STEVAL-IAC001V1 Bill of Materials STEVAL-IAC001V1 Gerber Files
• Main Purpose: Reference Design, Central Alarm Unit: MCU Based
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: M41ST95W, ST72321BJ9, VN340SP-E
• Primary Attributes: 8 Inputs, 7 Outputs, RS-485 Interface
• Secondary Attributes: Graphical User Interface
• Processor To Be Evaluated: ST72321BJ9
• Data Bus Width: 8 bit
• Interface Type: RS-485
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6261

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any system tampering; this line is normally connected in series with all the TAMPER input of
each sensor or device connected to the CU. A fire/smoke line is also present on the CU
board and is used to continuously monitor any fire or smoke sensor immediately signaling
any leak depending on line configuration, but independently of the CU status.
The system operates using a 4-wire communication bus (2 wires for power, 2 for
communication) using the RS-485 standard that guarantees good noise immunity.
ST components
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ST72321BJ9 8-bit microcontroller
VN340SP-E smart power solid state relay
M41ST95W Serial RTC
SMP100LC Trisil
ST2378E Level translator
STEVAL-IAC001V1