Description
The ST72324xx-Auto devices are members of the ST7 microcontroller family designed for mid-range automotive applications running from 3.8 to 5.5V. Different package options offer up to 32 I/O pins.

FEATUREs
Memories
■ 8 to 32 Kbyte dual voltage High Density Flash (HDFlash) with readout protection capability. In-application programming and In-circuit programming for HDFlash devices
■ 384 bytes to 1 Kbyte RAM
■ HDFlash endurance: 100 cycles, data retention 20 years

Clock, reset and supply management
■ Enhanced low voltage supervisor (LVD) with programmable reset thresholds and auxiliary voltage detector (AVD) with interrupt capability
■ Clock sources: crystal/ceramic resonator oscillators, internal RC oscillator and external clock input
■ PLL for 2x frequency multiplication
■ 4 power saving modes: Slow, Wait, Active Halt, and Halt

Interrupt management
■ Nested interrupt controller
■ 10 interrupt vectors plus TRAP and RESET
■ 9/6 external interrupt lines (on 4 vectors)

Up to 32 I/O ports
■ 32/24 multifunctional bidirectional I/O lines
■ 22/17 alternate function lines
■ 12/10 high sink outputs

4 timers
■ Main clock controller with Real-time base, Beep and Clock-out capabilities
■ Configurable watchdog timer
■ 16-bit Timer A with 1 input capture, 1 output compare, external clock input, PWM and pulse generator modes
■ 16-bit Timer B with 2 input captures, 2 output compares, PWM and pulse generator modes

2 communication interfaces
■ SPI synchronous serial interface
■ SCI asynchronous serial interface

1 analog peripheral (low current coupling)
■ 10-bit ADC with up to 12 input ports

Instruction set
■ 8-bit data manipulation
■ 63 basic instructions
■ 17 main addressing modes
■ 8 x 8 Unsigned Multiply Instruction

Development tools
■ Full HW/SW development pkg, ICT capability