ST72E121

ST72E121 ST72T121 8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS DATASHEET s s s s s s s s s s s s s s s s User Program Memory (OTP/EPROM): 8 to 16K bytes Data RAM: 384 to 512 bytes including 256 bytes of stack Master Reset and Power-On Reset Low Voltage Detector (LVD) Reset option Run and Power Saving modes 32 multifunctional bidirectional I/O lines: – 9 programmable interrupt inputs – 4 high sink outputs – 13 alternate functions – EMI filtering Software or Hardware Watchdog (WDG) 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 Synchronous Serial Peripheral Interface (SPI) Asynchronous Serial Communications Interface (SCI) 8-bit Data Manipulation 63 basic Instructions and 17 main Addressing Modes 8 x 8 Unsigned Multiply Instruction True Bit Manipulation Complete Development Support on DOS/ WINDOWSTM Real-Time Emulator Full Software Package on DOS/WINDOWSTM (C-Compiler, Cross-Assembler, Debugger) PSDIP42 CSDIP42W TQFP44 (See ordering information at the end of datasheet) Note: 1. One only on Timer A. Device Summary Features Program Memory - bytes RAM (stack) - bytes Peripherals Operating Supply CPU Frequency Temperature Range Package OTP/EPROM Devices ST72T121J2 ST72T121J4 8K 16K 384 (256) 512 (256) Watchdog, Timers, SPI, SCI and optional Low Voltage Detector Reset 3 to 5.5 V 8MHz max (16MHz oscillator) - 4MHz max over 85°C - 40°...