80C31BH Datasheet | Intel Corporation

80C31BH 80C51BH 87C51 MCS 51 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Automotive 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 Programmable Serial Port TTL- and CMOS-patible Logic Levels 64K External Program Memory Space 64K External Data Memory Space IDLE and POWER DOWN Modes ONCE Mode Facilitates System Testing Available in 12 MHz and 16 MHz Versions Available in PLCC and DIP Packages (See Packaging Specification...