Product Summary

The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash Programmable and Erasable Read Only Memory (PEROM). The AT89C51 is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard MCS-51 instruction set and pinout.

Parametrics

AT89C51 absolute maximum ratings: (1)Operating Temperature: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on Any Pin; (4)with Respect to Ground: -1.0V to +7.0V; (5)Maximum Operating Voltage: 6.6V; (6)DC Output Current: 15.0 mA.

Features

AT89C51 features: (1)Compatible with MCS-51?Products; (2)4K Bytes of In-System Reprogrammable Flash Memory-Endurance: 1,000 Write/Erase Cycles; (3)Fully Static Operation: 0 Hz to 24 MHz; (4)Three-Level Program Memory Lock; (5)128 x 8-Bit Internal RAM; (6)32 Programmable I/O Lines; (7)Two 16-Bit Timer/Counters; (8)Six Interrupt Sources; (9)Programmable Serial Channel; (10)Low Power Idle and Power Down Modes.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT89C51
AT89C51

Other


Data Sheet

Negotiable 
AT89C51-12AC
AT89C51-12AC

Atmel

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AT89C51-12JC
AT89C51-12JC

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AT89C51-12PC
AT89C51-12PC

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8-bit Microcontrollers (MCU) RO 556-AT89S51-24PC

Data Sheet

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AT89C51-12JC-5
AT89C51-12JC-5

Atmel

8-bit Microcontrollers (MCU) Microcontroller

Data Sheet

Negotiable 
AT89C51-12JI
AT89C51-12JI

Atmel

8-bit Microcontrollers (MCU) Microcontroller

Data Sheet

Negotiable 
AT89C5115-SISUM
AT89C5115-SISUM

Atmel

8-bit Microcontrollers (MCU) C51 16K Flash ADC

Data Sheet

0-685: $3.50
AT89C5115-RATUM
AT89C5115-RATUM

Atmel

8-bit Microcontrollers (MCU) C51 16K Flash ADC

Data Sheet

0-802: $4.21
802-1000: $3.74