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Hello. Welcome to Futurlec. The ELECTRONIC COMPONENTS Superstore. To find the component your looking for, either search by Part Number or visit the relative department. Need Help.


AT89C55-33JC - AT89C55 44-Pin 33MHz 8kb 8-bit Microcontroller Technical Data - Buy AT89C55-33JC

Photograph
AT89C55-33JC - AT89C55 44-Pin 33MHz 8kb 8-bit Microcontroller
Features

Compatible with MCS-51 Products

20K Bytes of In-System Reprogrammable Flash Memory

4V to 5.5V Operating Range

Fully Static Operation: 0 Hz to 24 MHz

Three-level Program Memory Lock

256 x 8-bit Internal RAM

32 Programmable I/O Lines

Three 16-bit Timer/Counters

Eight Interrupt Sources

Programmable Serial Channel

Low-power Idle and Power-down Mode

Interrupt Recovery from Power-down Mode

Hardware Watchdog Timer

Dual Data Pointer

Power-off Flag

44-pin PLCC


Pin Description
Pin Number Description
1 NC - Not Connected
2 - 9 P1.0 - P1.7 - Port 1
10 RST - Reset
11 P3.0 - Port 3
12 NC - Not Connected
13 - 19 P3.1 - P3.7 - Port 3
20 XTAL2 - Crystal
21 XTAL1 - Crystal
22 GND - Ground
23 NC - Not Connected
24 - 31 P2.0 - P2.7 - Port 2
32 PSEN - Program Store Enable
33 ALE/PROG - Address Latch Enable
34 NC - Not Connected
35 EA/Vpp - External Access Enable
36 - 43 P0.7 - P0.1 - Port 0
44 Vcc - Positive Power Supply
Pin Layout
AT89C55J Pin Description

Dimensional Drawing
PLCC44 Dimension Drawing

Technical Data

Data Sheet

Atmel - Data Sheet for AT89C55 Datasheet

Application Notes

Atmel - AT89C55 Series Application Notes Datasheet






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