ST72F521R6TA Datasheet, PDF (1/215 Pages) STMicroelectronics – 80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE

ST72F521, ST72521B
80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC,
FIVE TIMERS, SPI, SCI, I²C, CAN INTERFACE
■ 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
■ 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 RC oscillator 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
– 14 interrupt vectors plus TRAP and RESET
– Top Level Interrupt (TLI) pin
– 15 external interrupt lines (on 4 vectors)
■ Up to 64 I/O Ports
– 48 multifunctional bidirectional I/O lines
– 34 alternate function lines
– 16 high sink outputs
■ 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
and time base interrupt, external clock with
event detector
TQFP80
14 x 14
TQFP64
14 x 14
TQFP64
10 x 10
■ 4 Communications Interfaces
– SPI synchronous serial interface
– SCI asynchronous serial interface
– I²C multimaster interface
(SMbus V1.1 compliant)
– CAN interface (2.0B Passive)
■ Analog periperal (low current coupling)
– 10-bit ADC with 16 input 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
Features
Program memory - bytes
RAM (stack) - bytes
Operating Voltage
Temp. Range
Package
ST72F521(M/R/AR)9
Flash 60K
2048 (256)
TQFP80 14x14 (M),
TQFP64 14x14 (R),
TQFP64 10x10 (AR)
ST72F521(R/AR)6 ST72521B(M/R/AR)9
Flash 32K
ROM 60K
1024 (256)
2048 (256)
3.8V to 5.5V
up to -40°C to +125 °C
TQFP64 14x14 (R), TQFP64
10x10 (AR)
TQFP80 14x14 (M),
TQFP64 14x14 (R),
TQFP64 10x10 (AR)
ST72521B(R/AR)6
ROM 32K
1024 (256)
TQFP64 14x14 (R), TQFP64
10x10 (AR)
May 2005
Rev. 5
1/215
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