ST72F521M Datasheet, PDF (1/199 Pages) STMicroelectronics – 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE

ST72521M/R/AR
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,
FIVE TIMERS, SPI, SCI, I²C, CAN INTERFACE
s Memories
– 32K to 60K dual voltage High Density Flash
(HDFlash) or ROM with read-out protection
capability. In-Application Programming and
In-Circuit Programming for HDFlash devices
– 1K to 2K RAM
– HDFlash endurance: 100 cycles, data reten-
tion: 20 years at 55°C
s Clock, Reset And Supply Management
– Enhanced low voltage supervisor (LVD) for
main supply and auxiliary voltage detector
(AVD) with interrupt capability
– Clock sources: crystal/ceramic resonator os-
cillators, internal or external 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
s Interrupt Management
– Nested interrupt controller
– 14 interrupt vectors plus TRAP and RESET
– Top Level Interrupt (TLI) pin
– 15 external interrupt lines (on 4 vectors)
s Up to 64 I/O Ports
– 48 multifunctional bidirectional I/O lines
– 34 alternate function lines
– 16 high sink outputs
s 5 Timers
– Main Clock Controller with: Real time base,
Beep and Clock-out capabilities
– Configurable watchdog timer
– Two 16-bit timers with: 2 input captures, 2 out-
put compares, external clock input on one tim-
er, PWM and pulse generator modes
– 8-bit PWM Auto-Reload timer with: 2 input
captures, 4 PWM outputs, output compare
Device Summary
Features
Program memory - bytes
RAM (stack) - bytes
Operating Voltage
Temp. Range (ROM)
Temp. Range (Flash)
Package
ST72(F)521(M/R/AR)9
60K
2048 (256)
up to -40°C to +125°C
TQFP80 14x14 (M), TQFP64
14x14 (R), TQFP64 10x10 (AR)
TQFP80
14 x 14
TQFP64
14 x 14
TQFP64
10 x 10
and time base interrupt, external clock with
event detector
s 4 Communications Interfaces
– SPI synchronous serial interface
– SCI asynchronous serial interface (LIN com-
patible)
– I²C multimaster interface
– CAN interface (2.0B Passive)
s Analog peripheral
– 10-bit ADC with 16 input pins
s Instruction Set
– 8-bit Data Manipulation
– 63 Basic Instructions
– 17 main Addressing Modes
– 8 x 8 Unsigned Multiply Instruction
s Development Tools
– Full hardware/software development package
– In-Circuit Testing capability
ST72521(R/AR)7
48K
1536 (256)
3.8V to 5.5V
up to -40°C to +125°C
N/A
ST72(F)521(R/AR)6
32K
1024 (256)
up to -40°C to +125 °C
TQFP64 14x14 (R), TQFP64 10x10 (AR)
October 2002
Rev. 1.6
1/199
1