STMicroelectronics MB467 User Manual page 3

Introduction
The MB467 Airbag Eva Board is a complete demonstrator of an airbag system based on
STMicroelectronics devices. The board implements a flexible and open design demonstrating
the capability of the STMicroelectronics 16/32bit microcontrollers and safing devices for airbag
applications.
The MB467 Airbag Eva Board mounts two safing devices with SQUIB drivers and satellite
sensor interfaces L9654 and L9658 plus a safety power regulator L4998.
The board has opened connectivity to ST CPU boards, SQUIBs and to external power supply.
A prototyping area allows users to do needed specific circuit.
Main components
L9658, octal squib driver and quad sensor interface ASIC for safety application
L9654, quad squib driver and dual sensor interface ASIC for safety application
L4998, Safety Power Regulator
Standardized CPU board connector providing access to off board I/O, PWM, SPI and
power supply
Connector for Squibs
Connector for Satellites
Connector for Hall Sensors
Features
Support the ST30F7xx and ST10F3xx EVA boards
Support for up to 6 satellites or 4 satellites and 2 Hall sensors, real or simulated
Support for up to 12 Squibs, real or simulated
Diagnostic testing and validation of safing functionality
– SPI arming and deployment
– Squibs and deployment drivers
– Loss of ground and short circuit
– Micro/satellites communication
On board standard 100 mils prototyping area
Main power supply 12V
February 2006
UM0178
USER MANUAL
Airbag Eva Board
MB467
Rev 1
1/37
www.st.com 1