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LD87C51 - CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

General Description

VCC: Supply voltage during normal, Idle and Power Down operations.

VSS: Circuit ground.

Port 0: Port 0 is an 8-bit open drain bidirectional I/O port.

Key Features

  • of the MCS-51 Family, as listed below: Pin P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 Name RXD TXD INT0 INT1 T0 T1 WR RD Alternate Function Serial input line Serial output line External Interrupt 0 External Interrupt 1 Timer 0 external input Timer 1 external input External Data Memory Write strobe External Data Memory Read strobe PIN.

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Datasheet Details

Part number LD87C51
Manufacturer Intel
File Size 2.22 MB
Description CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Datasheet download datasheet LD87C51 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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87C51/80C51BH/80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial/Express 87C51/80C51BH/80C51BHP/80C31BH *See Table 1 for Proliferation Options ■ ■ ■ 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 (- 40°C to + 85 ° C) ■ ■ ■ 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 ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ MEMORY ORGANIZATION PROGRAM MEMORY: Up to 4 Kbytes of the program memory can reside on-chip (except 80C31BH).