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AT89C2051-24PU - AT89C2051 20-Pin 24MHz 2kb 8-bit Microcontroller Technical Data Technical Data - Buy AT89C2051-24PU


Photograph
AT89C2051-24PU - AT89C2051 20-Pin 24MHz 2kb 8-bit Microcontroller
Features

Compatible with MCS-51 Products

2K Bytes of Reprogrammable Flash Memory

2.7 to 6V Operating Range

Fully Static Operation: 0 Hz to 24 MHz

Two-level Program Memory Lock

64 x 8-bit Internal RAM

15 Programmable I/O Lines

Two 16-bit Timer/Counters

Six Interrupt Sources

Programmable Serial UART Channel

Direct LED Drive Outputs

On-chip Analog Comparator

Low-power Idle and Power-down Modes

20-pin DIP


Pin Description
Pin Number Description
1 RESET - Reset
2 P3.0 - Port 3 - RXD
3 P3.1 - Port 3 - TXD
4 XTAL2 - Crystal
5 XTAL1 - Crystal
6 P3.2 - Port 3 - INT0
7 P3.3 - Port 3 - INT1
8 P3.4 - Port 3 - TO
9 P3.5 - Port 3 - T1
10 GND - Ground
11 P3.7 - Port 3
12 P1.0 - Port 1 - AIN0
13 P1.1 - Port 1 - AIN1
14 P1.2 - Port 1
15 P1.3 - Port 1
16 P1.4 - Port 1
17 P1.5 - Port 1
18 P1.6 - Port 1
19 P1.7 - Port 1
20 Vcc - Positive Supply
Pin Layout
AT89C2051 Pin Description

Dimensional Drawing
PDIP20 Dimension Drawing

Technical Data

Data Sheet

Atmel - Data Sheet for AT89C2051 Datasheet

Application Notes

Atmel - 80 Series Application Notes Datasheet





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