July 2007
Rev 2
1
ST72324Bxx-Auto
8-bit MCU for automotive, 3.8 to 5.5V operating range with
8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI
Features
Memories
■ 8 to 32 Kbyte dual voltage High Density Flash
(HDFlash) or ROM 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
■ In-circuit testing capability
LQFP44
10 x 10
LQFP32
7 x 7
Table 1.
Device summary
Device
Memory
RAM (stack)
Voltage range
Temp. range
Package
ST72324BK2-Auto Flash/ROM 8 Kbytes
384 (256) bytes
3.8 to 5.5V
up to
-40 to 125°C
LQFP32
7x7
ST72324BK4-Auto Flash/ROM 16 Kbytes
512 (256) bytes
ST72324BK6-Auto Flash/ROM 32 Kbytes
1024 (256) bytes
ST72324BJ2-Auto Flash/ROM 8 Kbytes
384 (256) bytes
LQFP44
10x10
ST72324BJ4-Auto Flash/ROM 16 Kbytes
512 (256) bytes
ST72324BJ6-Auto Flash/ROM 32 Kbytes
1024 (256) bytes
Obsolete
Product(s)
- Obsolete
Product(s)