ST72521M/R/AR
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,
FIVE TIMERS, SPI, SCI, I
2
C, CAN INTERFACE
DATA BRIEFING
s
s
s
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Memories
鈥?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
鈥?1K to 2K RAM
Cloc anced reset system
鈥?Enhanced low voltage supervisor (LVD) for
main supply and auxiliary voltage detector
(AVD) with interrupt capability
鈥?Clock sources: crystal/ceramic resonator os-
cillators, internal or external RC oscillator,
clock security system and bypass for external
clock
鈥?PLL for 2x frequency multiplication
鈥?Four power saving modes: Halt, Active-Halt,
Wait and Slow
Interrupt Management
鈥?Nested interrupt controller
鈥?14 interrupt vectors plus TRAP and RESET
鈥?TLI dedicated top level interrupt pin
鈥?15 external interrupt lines (on 4 vectors)
Up to 64 I/O Ports
鈥?48 multifunctional bidirectional I/O lines
鈥?34 alternate function lines
鈥?16 high sink outputs
5 Timers
鈥?Main Clock Controller with: Real time base,
Beep and Clock-out capabilities
鈥?Configurable watchdog timer
鈥?Two 16-bit timers with: 2 input captures, 2 out-
put compares, external clock input on one tim-
er, PWM and pulse generator modes
鈥?8-bit PWM Auto-Reload timer with: 2 input
captures, 4 PWM outputs, output compare
and time base interrupt, external clock with
event detector
Features
ST72(F)521(M/R/AR)9
TQFP64
14 x 14
TQFP80
14 x 14
TQFP64
10 x 10
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4 Communications Interfaces
鈥?SPI synchronous serial interface
鈥?SCI asynchronous serial interface (LIN com-
patible)
鈥?I
2
C multimaster interface
鈥?CAN interface (2.0B Passive)
Analog peripheral
鈥?10-bit ADC with 16 input pins
Instruction Set
鈥?8-bit Data Manipulation
鈥?63 Basic Instructions
鈥?17 main Addressing Modes
鈥?8 x 8 Unsigned Multiply Instruction
鈥?True Bit Manipulation
Development Tools
鈥?Full hardware/software development package
鈥?In-Circuit Testing capability
ST72(F)521(R/AR)6
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Device Summary
ST72521(M/R/AR)7
Program memory - bytes
60K
48K
32K
RAM (stack) - bytes
2048 (256)
1536 (256)
1024 (256)
Operating Voltage
3.8V to 5.5V
Temp. Range (ROM)
0擄C to 70擄C / -10擄C to +85
擄C
/ -40擄C to +85
擄C
/ -40擄C to +105擄C / -40擄C to +125擄C
Temp. Range (Flash)
-40擄C to +85
擄C
/ -40擄C to +125擄C
N/A
-40擄C to +125
擄C
Package
TQFP80 14x14 (M), TQFP64 14x14 (R), TQFP64 10x10 (AR)
TQFP64 14x14 (R), TQFP64 10x10 (AR)
Rev. 1.5
April 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
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