描述 Description

The ST32GxxxA is a serial access microcontroller designed for machine-to-machine (M2M) applications in the car environment that incorporates the most recent generation of ARM?processors for embedded systems. Its Cortex?-M3 32-bit RISC core operating at a 15-MHz frequency brings great performance and excellent code compacity to the application thanks to the Thumb?-2 instruction set.
The 512-Kbyte high-speed embedded Flash memory introduces more flexibility to the system. This Flash memory has an improved cycling capability compared to the ST32F512-M.
The ST32GxxxA also offers a serial communication interface fully compatible with the ISO/IEC 7816-3 standard (T=0, T=1).
Two general-purpose 16-bit timers are available.
A hardware Data Encryption Standard (DES) accelerator can be used to the user to optimize the application performance. A software library is provided for Advanced Encryption Standard (AES) implementation.
The ST32GxxxA operates in the –40 to +105 °C temperature range and 1.8 V, 3 V and 5 V supply voltage ranges. A comprehensive range of power-saving modes enables the design of efficient low-power applications.

特性 Features

Hardware featuresARM?Cortex?-M3 32-bit RISC core
12 Kbytes of user RAM
512 Kbytes of user Flash memory with OTP area:10-year data retention at 105 °C, or 17 years at 85 °C
500 000 Erase/Write cycles per page
Page granularity of 128 Bytes
Block granularity: 1 Kbyte
128 bytes of OTP for user
Page Erase time 4 ms
Block Erase 1 Kbyte in 20 ms
Programming performance up to 10 μs/byte
Flash Erase / Write Protection software programmable on 32 Kbyte sectors

Asynchronous Receiver Transmitter supporting ISO/IEC 7816-3 T=0 and T=1 protocols
Two 16-bit timers with interrupt capability
1.8 V, 3 V and 5 V supply voltage ranges
External clock frequency from 1 up to 7.5 MHz
High performance provided by:Typical CPU clock frequency of 17.5 MHz
External clock multiplier (2x, 3x, and 4x)

Current consumption compatible with ETSI specifications
AECQ100 rev G automotive-grade compliance
Power-saving Standby state
Contact assignment compatible ISO 7816-2
ESD protection greater than 4 kV (HBM)
8-pin DFN (6 × 5 mm) ECOPACK?package

Security featuresMonitoring of environmental parameters
Protection against faults
ISO 3309 CRC calculation block
True random number generator
Unique serial number on each die
Hardware data encryption standard (DES) accelerator

Software featuresFlash memory loader
Flash memory drivers

Development environmentSoftware development and firmware generation are supported by a comprehensive set of development tools dedicated to software design and validation:C compiler, simulator and emulator


Major applicationseCalls
Connected car
Java Card? applications