N80C31BH

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 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 Order 231369) Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y The MCS 51 CHMOS microcontroller products are fabricated on Intel’s reliable CHMOS process and are functionally compatible with the standard MCS 51 HMOS microcontroller products This technology combines the high speed and density characteristics of HMOS with the low power attributes of CHMOS This combination expands the effectiveness of the powerful MCS 51 microcontroller architecture and instruction set Like the MCS 51 HMOS microcontroller versions the MCS 51 CHMOS microcontroller products have the following 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 addit...