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80C51BH

Intel Corporation
Part Number 80C51BH
Manufacturer Intel Corporation
Description CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Published Mar 22, 2005
Detailed Description 87C51 80C51BH 80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial Express 87C51 80C51BH 80C51BHP 80C31BH See Tabl...
Datasheet PDF File 80C51BH PDF File

80C51BH
80C51BH

Overview
87C51 80C51BH 80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial Express 87C51 80C51BH 80C51BHP 80C31BH See Table 1 for Proliferation Options Y Y Y High Performance CHMOS EPROM 24 MHz Operation Improved Quick-Pulse Programming Algorithm 3-Level Program Memory Lock Boolean Processor 128-Byte Data RAM 32 Programmable I O Lines Two 16-Bit Timer Counters Extended Temperature Range ( b 40 C to a 85 C) Y Y Y 5 Interrupt Sources Programmable Serial Port TTL- and CMOS-Compatible Logic Levels 64K External Program Memory Space 64K External Data Memory Space ONCE Mode Facilitates System Testing Power Control Modes Idle Power Down Y Y Y Y Y Y Y Y Y Y MEMORY ORGANIZATION PROGRAM MEMORY Up to 4 Kbytes of the program memory can reside on-chip (except 80C31BH) In addition the device can address up to 64K of program memory external to the chip DATA MEMORY This microcontroller has a 128 x 8 on-chip RAM In addition it can address up to 64 Kbytes of external data memory The Intel 87C51 80C51BH 80C31BH is a single-chip control-oriented microcontroller which is fabricated on Intel’s reliable CHMOS III-E technology Being a member of the MCS 51 controller family the 87C51 80C51BH 80C31BH uses the same powerful instruction set has the same architecture and is pin-forpin compatible with the existing MCS 51 controller family of products The 80C51BHP is identical to the 80C51BH When ordering the 80C51BHP customers must submit the 64 byte encryption table together with the ROM code Lock bit 1 will be set to enable the internal ROM code protection and at the same time allows code verification The extremely low operating power along with the two reduced power modes Idle and Power Down make this part very suitable for low power applications The Idle mode freezes the CPU while allowing the RAM timer counters serial port and interrupt system to continue functioning The Power Down mode saves the RAM contents but freezes the oscillator causing all other chip functions to be inoperative F...


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