鈻?/div>
Memories
鈥?8K dual voltage High Density Flash (HDFlash)
or ROM with read-out protection capability. In-
Application Programming and In-Circuit Pro-
gramming for HDFlash devices
鈥?384 bytes RAM
鈥?HDFlash endurance: 100 cycles, data reten-
tion: 20 years at 55掳C
Clock, Reset And Supply Management
鈥?Clock sources: crystal/ceramic resonator os-
cillators 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?6 external interrupt lines (on 4 vectors)
Up to 32 I/O Ports
鈥?24 multifunctional bidirectional I/O lines
鈥?17 alternate function lines
鈥?10 high sink outputs
4Timers
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-
putcompares, PWM and pulse generator
modes
TQFP32
7x7
SDIP32
400mil
鈻?/div>
2 Communications Interfaces
鈥?SPI synchronous serial interface
鈥?SCI asynchronous serial interface
1 Analog peripheral (low current coupling)
鈥?10-bit ADC with up to 12 robust input ports
Instruction Set
鈥?8-bit Data Manipulation
鈥?63 Basic Instructions
鈥?17 main Addressing Modes
鈥?8 x 8 Unsigned Multiply Instruction
Development Tools
鈥?Full hardware/software development package
鈥?In-Circuit Testing capability
鈻?/div>
鈻?/div>
鈻?/div>
Device Summary
Features
Program memory - bytes
RAM (stack) - bytes
Operating Voltage
Temp. Range
Package
ST72F32AK2
FLASH 8K
ST7232AK1
ROM 4K
384 (256)
3.8V to 5.5V
up to -40掳C to +85掳C
TQFP32 7x7 , SDIP32 400mils
ST7232AK2
ROM 8K
Rev. 1
April 2005
1/154
1
next