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
LQFP44
10 x 10
LQFP32
7 x 7
■ 384 bytes to 1 Kbyte RAM
4 timers
■ HDFlash endurance: 100 cycles, data retention
■ Main clock controller with Real-time base,
20 years
Beep and Clock-out capabilities
■ Configurable watchdog timer
Clock, reset and supply management
■ 16-bit Timer A with 1 input capture, 1 output
compare, external clock input, PWM and pulse
generator modes
■ 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
■ 16-bit Timer B with 2 input captures, 2 output
compares, PWM and pulse generator modes
2 communication interfaces
■ PLL for 2x frequency multiplication
■ SPI synchronous serial interface
■ SCI asynchronous serial interface
■ 4 power saving modes: Slow, Wait, Active Halt,
and Halt
1 analog peripheral (low current coupling)
Interrupt management
■ 10-bit ADC with up to 12 input ports
■ Nested interrupt controller
■ 10 interrupt vectors plus TRAP and RESET
■ 9/6 external interrupt lines (on 4 vectors)
Instruction set
■ 8-bit data manipulation
Up to 32 I/O ports
■ 63 basic instructions
■ 17 main addressing modes
■ 8 x 8 Unsigned Multiply Instruction
■ 32/24 multifunctional bidirectional I/O lines
■ 22/17 alternate function lines
■ 12/10 high sink outputs
Development tools
■ In-circuit testing capability
Table 1.
Device
Device summary
Memory
RAM (stack)
Voltage range Temp. range
Package
ST72324BK2-Auto Flash/ROM 8 Kbytes
ST72324BK4-Auto Flash/ROM 16 Kbytes
ST72324BK6-Auto Flash/ROM 32 Kbytes
ST72324BJ2-Auto Flash/ROM 8 Kbytes
ST72324BJ4-Auto Flash/ROM 16 Kbytes
ST72324BJ6-Auto Flash/ROM 32 Kbytes
384 (256) bytes
512 (256) bytes
1024 (256) bytes
384 (256) bytes
512 (256) bytes
1024 (256) bytes
LQFP32
7x7
up to
3.8 to 5.5V
-40 to 125°C
LQFP44
10x10
July 2007
Rev 2
1/197
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