80C31BH Datasheet - Intel Corporation

80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

VCC Supply voltage during normal Idle and Power Down operations VSS Circuit ground VSS1 VSS1 (EPROM PLCC only) secondary ground Provided to reduce ground bounce and improve power supply bypassing NOTE This pin is not a substitute for the VSS pin (pin 22) For ROM and ROMless pin 1 is reserved do not .

80C31BH 80C51BH 87C51 MCS 51 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Automotive Y Extended Automotive Temperature Range ( b 40 C to a 125 C Ambient) High Performance CHMOS Process Power Control Modes 4 Kbyte On-Chip ROM EPROM 128 x 8-bit RAM 32 Programmable I O Lines Two 16-Bit Timer Counters 5 Interrupt Sources Quick-Pulse EPROM Programming 2-Level Program Memory Lock EPROM Boolean Processor Y Y Programmable Serial Port TTL- and CMOS-Compatible Logic Levels 64K External Program Memory Space .

80C31BH Features

* 4 Kbytes of EPROM ROM (87C51 80C51BH respectively) 128 bytes of RAM 32 I O lines two 16-bit timer counters a five-source two-level interrupt structure a full duplex serial port and on-chip oscillator and clock circuitry In addition the MCS 51 CHMOS microcontroller products exhibit low operating powe

80C31BH_IntelCorporation.pdf