ST72324BXX Datasheet, PDF (1/188 Pages) STMicroelectronics – 8-bit MCU, 3.8 to 5.5 V operating range with 8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI

ST72324Bxx
8-bit MCU, 3.8 to 5.5 V 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: 1 kcycles at 55 °C, data
retention 40 years at 85°C
LQFP44
10 x 10
SDIP42
600 mil
LQFP32
7x7
SDIP32
400 mil
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, int. RC osc. and ext. clock input
■ PLL for 2x frequency multiplication
■ 4 power saving modes: Slow, Wait, Active Halt,
and Halt
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, ext. clock input, PWM and pulse
generator modes
■ 16-bit Timer B with 2 input captures, 2 output
compares, PWM and pulse generator modes
Interrupt management
■ Nested interrupt controller. 10 interrupt vectors
plus TRAP and RESET. 9/6 ext. interrupt lines
(on 4 vectors)
2 communication interfaces
■ SPI synchronous serial interface
■ SCI asynchronous serial interface
Up to 32 I/O ports
■ 32/24 multifunctional bidirectional I/Os,
22/17 alternate function lines,
12/10 high sink outputs
Table 1. Device summary
1 analog peripheral (low current coupling)
■ 10-bit ADC with up to 12 input ports
Development tools
■ In-circuit testing capability
Device
Memory
RAM (stack) Voltage range Temp. range Package
ST72324BK2
ST72324BK4
ST72324BK6
ST72324BJ2
ST72324BJ4
ST72324BJ6
Flash/ROM 8 Kbytes
Flash/ROM 16 Kbytes
Flash/ROM 32 Kbytes
Flash/ROM 8 Kbytes
Flash/ROM 16 Kbytes
Flash/ROM 32 Kbytes
384 (256) bytes
512 (256) bytes
1024 (256) bytes
384 (256) bytes
512 (256) bytes
1024 (256) bytes
3.8 to 5.5V
up to
-40 to 125°C
LQFP32
7x7/
SDIP32
LQFP44
10x10/
SDIP42
October 2007
Rev 6
1/188
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