ST7271

The ST7271 is kind of 8-bit HCMOS MCU with EEPROM and TV/monitor dedicated functions. It is based around an industry standard 8-bit core and offers an enhanced instruction set. The device includes an on-chip oscillator, CPU, ROM, RAM, EEPROM, I/O, a timer with 2 input capture and 1 output compare signals, an 8-channel analog to digital converter and an industry standard SPI as standard peripherals.

There are some features of the ST7271 as follows: (1)5 V±10% supply operating range; (2)4MHz maximum internal clock frequency; (3)fully static operation; (4)0 to +70 operating temperature range; (5)run, wait, and stop mode; (6)up to 27 I/O lines, 8 I/O open drain with 12 V capability; (7)up to 18 lines programmable as interrupt wake-up inputs; (8)16-bit timer with 2 input capture and 2 output compare functions; (9)sync processor for video timing analysis; (10)watchdog for system reliability and integrity; (11)8-bit analog to digital converter with up to 8 channels; (12)16 10-bit PWM/BRM digital to analog outputs; (13)1 12-bit PWM/BRM digital to analog outputs; (14)master reset and power-on reset; (15)full hardware emulator; (16)8-bit fata manipulation; (17)74 basic instructions; (18)true bit manipulation.

The following is about the absolute maximum ratings of the ST7271 (voltage reference to VSS): (1)VDD, supply voltage: -0.3 to +7.0 V; (2)VIN, input voltage: VSS-0.3 to VDD+0.3 V; (3)VDDA, analog reference voltage: -0.3 to +9.0 V; (4)I, current drain per pin excluding VDD and VSS: 25 mA; (5)TA, operating temperature range: 0 to +70; (6)TSTG, storage temperature range: -65 to +150.