ST72F324, ST72324B
5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM,
10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
PRELIMINARY DATA
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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: 20 years at 55°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
Features
TQFP32
7x7
TQFP44
10 x 10
SDIP42
600 mil
SDIP32
400 mil
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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
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Device Summary
ST72F324(J/K)6 ST72F324(J/K)4 ST72F324(J/K)2 ST72324B(J/K)6 ST72324B(J/K)4 ST72324B(J/K)2
Flash 32K
1024 (256)
Flash 16K
512 (256)
Flash 8K
384 (256)
ROM 32K
ROM 16K
ROM 8K
384 (256)
Program memory -
bytes
RAM (stack) - bytes
Voltage Range
Temp. Range
Packages
1024 (256)
512 (256)
3.8V to 5.5V
up to -40°C to +125°C
SDIP42, TQFP44 10x10,SDIP32, TQFP32 7x7
Rev. 2.0
May 2004
1/164
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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STMICROELECTRONICS [ STMICROELECTRONICS ]
