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AT89C52-24PC - AT89C52 40-Pin 24MHz 8kb 8-bit Microcontroller Technical Data

Photograph
AT89C52-24PC - AT89C52 40-Pin 24MHz 8kb 8-bit Microcontroller

Features

arrowCompatible with MCS-51 Products

arrow8K Bytes of In-System Reprogrammable Flash Memory

arrowFully Static Operation: 0 Hz to 24 MHz

arrowThree-level Program Memory Lock

arrow256 x 8-bit Internal RAM

arrow32 Programmable I/O Lines

arrowThree 16-bit Timer/Counters

arrowEight Interrupt Sources

arrowProgrammable Serial Channel

arrowLow-power Idle and Power-down Modes

arrow40-pin DIP


Pin Layout
AT89C52 Pin Layout

Pin Description
Pin Number Description
1 - 8 P1.0 - P1.7 - Port 1
9 RST - Reset
10 - 17 P3.0 - P3.7 - Port 3
18 XTAL2 - Crystal
19 XTAL1 - Crystal
20 GND - Ground
21 - 28 P2.0 - P2.7 - Port 2
29 PSEN - Program Store Enable
30 ALE - Address Latch Enable
31 EA - External Access Enable
32 - 39 P0.7 - P0.1 - Port 0
40 Vcc - Positive Power Supply

Dimensional Drawing
PDIP40 Dimension Drawing

Technical Data

Data Sheet

Microchip Web Site - Data Sheet for AT89C52 Datasheet

Application Notes