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AT89C55-24QC

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

AT89C55-24QC Overview

8-Bit Microcontroller with 20K Bytes Flash

AT89C55-24QC Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerAtmel (Microchip)
Parts packaging codeQFP
package instructionQFP, QFP44,.5SQ,32
Contacts44
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 codeS-PQFP-G44
JESD-609 codee0
length10 mm
Number of I/O lines32
Number of terminals44
Maximum operating temperature70 °C
Minimum operating temperature
PWM channelNO
Package body materialPLASTIC/EPOXY
encapsulated codeQFP
Encapsulate equivalent codeQFP44,.5SQ,32
Package shapeSQUARE
Package formFLATPACK
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
RAM (bytes)256
rom(word)20480
ROM programmabilityFLASH
Maximum seat height2.45 mm
speed24 MHz
Maximum supply voltage6 V
Minimum supply voltage4 V
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width10 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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