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87L54 - LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS

Description

VCC Supply voltage VSS Circuit ground Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink several inputs Port 0 pins that have 1’s written to them float and in that state can be used as high-impedance inputs Port 0 is also the multiplexed low-order addres

Features

  • of the MCS-51 Family as listed below Port Pin P3 0 P3 1 P3 2 P3 3 P3 4 P3 5 P3 6 P3 7 Alternate Function RXD (serial input port) TXD (serial output port) INT0 (external interrupt 0) INT1 (external interrupt 1) T0 (Timer 0 external input) T1 (Timer 1 external input) WR (external data memory write strobe) RD (external data memory read strobe) PIN.

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Datasheet Details

Part number 87L54
Manufacturer Intel Corporation
File Size 284.53 KB
Description LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS
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  • 87L58 - LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS

Full PDF Text Transcription

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8XL52 54 58 LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS Commercial Express 87L52 80L52 87L54 80L54 87L58 80L58 Y Y Y High Performance CHMOS OTP ROM Low Voltage Operation 20 MHz Commercial 16 MHz Express Operation Three 16-Bit Timer Counters Up Down Timer Counter Three Level Program Lock System 8K 16K 32K On-Chip Program Memory 256 Bytes of On-Chip Data RAM Improved Quick Pulse Programming Algorithm Boolean Processor 32 Programmable I O Lines Y Y Y 6 Interrupt Sources Four Level Interrupt Priority Programmable Serial Channel with Framing Error Detection Automatic Address Recognition 64K External Program Memory Space 64K External Data Memory Space MCS 51 Microcontroller Compatible Instruction Set Power Saving Idle and Power Down Modes ONCE (On-Circuit Emulation) Mode Extended Tem
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