Overview: ST72E331 ST72T331
8-BIT MCU WITH 8 TO 16K OTP/EPROM, 256 EEPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS
DATASHEET User Program Memory (OTP/EPROM): 8 to 16K bytes s User EEPROM: 256 bytes s Data RAM: 384 to 512 bytes including 256 bytes of stack s Master Reset and Power-On Reset s Low Voltage Detector (LVD) Reset option s Run and Power Saving modes s 44 or 32 multifunctional bidirectional I/O lines: – 15 or 9 programmable interrupt inputs – 8 or 4 high sink outputs – 8 or 6 analog alternate inputs – 13 alternate functions – EMI filtering s Software or Hardware Watchdog (WDG) s Two 16-bit Timers, each featuring: – 2 Input Captures 1) – 2 Output Compares 1) – External Clock input (on Timer A) – PWM and Pulse Generator modes s Synchronous Serial Peripheral Interface (SPI) s Asynchronous Serial Communications Interface (SCI) 2) s 8-bit ADC with 8 channels s 8-bit Data Manipulation s 63 basic Instructions and 17 main Addressing Modes s 8 x 8 Unsigned Multiply Instruction s True Bit Manipulation s Complete Development Support on DOS/ WINDOWSTM Real-Time Emulator TM s Full Software Package on DOS/WINDOWS (C-Compiler, Cross-Assembler, Debugger) Device Summary
s PSDIP42 CSDIP42W PSDIP56 CSDIP56W TQFP64 TQFP44 (See ordering information at the end of datashee
Notes: 1. One only on Timer A. 2. Six channels only for ST72T331J.
