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ST72321BRX Datasheet, PDF (1/187 Pages) STMicroelectronics – 32K to 60K dual voltage High Density Flash | |||
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ST72321BRx, ST72321BARx
ST72321BJx, ST72321BKx
64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC,
five timers, SPI, SCI, I2C interface
Features
â Memories
â 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
â 1K to 2K RAM
â HDFlash endurance: 100 cycles, data reten-
tion: 40 years at 85°C
â Clock, Reset And Supply Management
â Enhanced low voltage supervisor (LVD) for
main supply and auxiliary voltage detector
(AVD) with interrupt capability
â Clock sources: crystal/ceramic resonator os-
cillators, internal RC oscillator and bypass for
external clock
â PLL for 2x frequency multiplication
â Four Power Saving Modes: Halt, Active-Halt,
Wait and Slow
â Interrupt Management
â Nested interrupt controller
â 14 interrupt vectors plus TRAP and RESET
â Top Level Interrupt (TLI) pin on 64-pin devices
â 15/9 external interrupt lines (on 4 vectors)
â Up to 48 I/O Ports
â 48/32/24 multifunctional bidirectional I/O lines
â 34/22/17 alternate function lines
â 16/12/10 high sink outputs
â 5 Timers
â Main Clock Controller with: Real time base,
Beep and Clock-out capabilities
â Configurable watchdog timer
â Two 16-bit timers with: 2 input captures, 2 out-
put compares, external clock input on one tim-
er, PWM and pulse generator modes
LQFP64
14 x 14
LQFP32
7x7
LQFP64
10 x 10
LQFP44
10 x 10
â 8-bit PWM Auto-reload timer with: 2 input cap-
tures, 4 PWM outputs, output compare and
time base interrupt, external clock with event
detector
â 3 Communications Interfaces
â SPI synchronous serial interface
â SCI asynchronous serial interface
â I2C multimaster interface
â 1 Analog peripheral (low current coupling)
â 10-bit ADC with up to 16 robust input ports
â Instruction Set
â 8-bit Data Manipulation
â 63 Basic Instructions
â 17 main Addressing Modes
â 8 x 8 Unsigned Multiply Instruction
â Development Tools
â Full hardware/software development package
â In-Circuit Testing capability
Table 1. Device Summary
Features
Program memory -
bytes
RAM (stack) - bytes
Operating Voltage
Temp. Range
Package
ST72321BAR9/ ST72321BR9/
ST72321BJ9
ST72321BAR7/ ST72321BR7/ ST72321BAR6/ ST72321BR6/
ST72321BJ7
ST72321BJ6/ST72321BK6
FLASH/ROM 60K
FLASH/ROM 48K
FLASH/ROM 32K
2048 (256)
1536 (256)
1024 (256)
3.8V to 5.5V
up to -40°C to +125°C
LQFP64 10x10 (AR),LQFP64 14x14 (R), LQFP44 10x10 (J), LQFP32 7x7 (K)
October 2008
Rev 5
1/187
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