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AT89C55-24PC

Description
8-Bit Microcontroller with 20K Bytes Flash
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size430KB,24 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric View All

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AT89C55-24PC Overview

8-Bit Microcontroller with 20K Bytes Flash

AT89C55-24PC Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerAtmel (Microchip)
Parts packaging codeDIP
package instructionDIP, DIP40,.6
Contacts40
Reach Compliance Codeunknow
Has ADCNO
Address bus width16
bit size8
CPU series8051
maximum clock frequency24 MHz
DAC channelNO
DMA channelNO
External data bus width8
JESD-30 codeR-PDIP-T40
JESD-609 codee0
length52.2 mm
Number of I/O lines32
Number of terminals40
Maximum operating temperature70 °C
Minimum operating temperature
PWM channelNO
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP40,.6
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
RAM (bytes)256
rom(word)20480
ROM programmabilityFLASH
Maximum seat height5.59 mm
speed24 MHz
Maximum supply voltage6 V
Minimum supply voltage4 V
Nominal supply voltage5 V
surface mountNO
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width15.24 mm
uPs/uCs/peripheral integrated circuit typeMICROCONTROLLER
AT89C55
Features
Compatible with MCS-51™ Products
20K Bytes of In-System Reprogrammable Flash Memory
– Endurance: 1,000 Write/Erase Cycles
Fully Static Operation: 0 Hz to 33 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
Low Power Idle and Power Down Modes
Description
The AT89C55 is a low-power, high-performance CMOS 8-bit microcomputer with 20K
bytes of Flash programmable and erasable read only memory. The device is manu-
factured using Atmel’s high density nonvolatile memory technology and is compatible
with the industry standard 80C51 instruction set and pinout. The on-chip Flash allows
the program memory to be reprogrammed in-system or by a conventional nonvolatile
memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic
chip, the Atmel AT89C55 is a powerful microcomputer which provides a highly flexible
and cost effective solution to many embedded control applications.
(continued)
8-Bit
Microcontroller
with 20K Bytes
Flash
AT89C55
Pin Configurations
PDIP
PQFP/TQFP
PLCC
0580D-A–12/97
4-169
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