ST72324B Datasheet, PDF (1/167 Pages) STMicroelectronics – 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

ST72324B
5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM,
10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
■ Memories
– 8 to 32K dual voltage High Density Flash (HD-
Flash) or ROM with read-out protection capa-
bility. In-Application Programming and In-
Circuit Programming for HDFlash devices
– 384 to 1K bytes RAM
– HDFlash endurance: 100 cycles, data reten-
tion: 40 years at 85°C
■ Clock, Reset And Supply Management
– Enhanced low voltage supervisor (LVD) for
main supply with programmable reset thresh-
olds and auxiliary voltage detector (AVD) with
interrupt capability
– Clock sources: crystal/ceramic resonator os-
cillators, internal RC oscillator, clock security
system and bypass for external clock
– PLL for 2x frequency multiplication
– Four Power Saving Modes: Halt, Active-Halt,
Wait and Slow
■ 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
TQFP44
10 x 10
TQFP32
7x7
SDIP42
600 mil
SDIP32
400 mil
■ 2 Communication Interfaces
– SPI synchronous serial interface
– SCI asynchronous serial interface
■ 1 Analog Peripheral (low current coupling)
– 10-bit ADC with up to 12 robust input ports
■ Instruction Set
– 8-bit Data Manipulation
– 63 Basic Instructions
– 17 main Addressing Modes
– 8 x 8 Unsigned Multiply Instruction
■ Development Tools
– Full hardware/software development package
– In-Circuit Testing capability
Device Summary
Feature
ST72F324B(J/K)6 ST72F324B(J/K)4 ST72F324B(J/K)2 ST72324B(J/K)6 ST72324B(J/K)4
Program memory -
bytes
Flash 32K
Flash 16K
Flash 8K
ROM 32K
ROM 16K
RAM (stack) - bytes 1024 (256)
512 (256)
384 (256)
1024 (256)
512 (256)
Voltage Range
3.8V to 5.5V
Temp. Range
up to -40°C to +125°C
Packages
SDIP42, TQFP44 10x10,SDIP32, TQFP32 7x7
For information on ordering older ST72F324(J/K) devices, refer to the separate datasheet
ST72324B(J/K)2
ROM 8K
384 (256)
February 2006
Rev. 5
1/167
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