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AT89C55WD-24AC

AT89C55WD-24AC

AT89C55WD-24AC

Microchip Technology

20KB 20K x 8 FLASH 8051 8-Bit Microcontroller 89C Series AT89C55 44-TQFP

SOT-23

AT89C55WD-24AC Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Mounting Type Surface Mount
Package / Case 44-TQFP
Supplier Device Package 44-TQFP (10x10)
Data Converters --
Package Tray
Base Product Number AT89C55
Mfr Microchip Technology
Product Status Obsolete
Operating Temperature0°C~70°C TA
PackagingTray
Series 89C
Published 1996
Part StatusObsolete
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Base Part Number AT89C55
Oscillator TypeInternal
Number of I/O 32
Speed 24MHz
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 4.5V~5.5V
Core Processor 8051
Peripherals WDT
Program Memory TypeFLASH
Core Size 8-Bit
Program Memory Size 20KB 20K x 8
Connectivity UART/USART
EEPROM Size --
RoHS StatusNon-RoHS Compliant
In-Stock:4785 items

AT89C55WD-24AC Product Details

AT89C55WD-24AC Overview


In a 44-TQFP package, the MCU is available. 32 I/Os are available. The Microcontroller has a mounting type of Surface Mount, which indicates that it is mounted conveniently. The 8-Bit core is the core of the MCU. There is a FLASH type of memory for its program. There is a temperature range of 0°C~70°C TA that is operated by this Microcontroller. 89C series components make up this electrical component. 20KB 20K x 8 is the size of its program memory. A 8051 Core processor is used to power the device. The base part number AT89C55 can be used to find alternatives.

AT89C55WD-24AC Features


44-TQFP package
Mounting type of Surface Mount


AT89C55WD-24AC Applications


There are a lot of Microchip Technology
AT89C55WD-24AC Microcontroller applications.


  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights
  • 3D printers
  • Washing machine
  • Microwave ovens
  • Home appliances
  • Home video and audio
  • Entertainment products

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