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Microchip Technology

Microchip Technology 89C | Microchip Technology

89C series from Microchip Technology

Overview

Compare 89C Variants

Side-by-side comparison of 10 product variants from Microchip Technology

ParameterAT89C1051-24PCAT89C55WD-24JUAT89C51RD2-SLRUMAT89C51RC-24PUAT89C51AC3-SLSUMAT89C51RC2-SLRULAT89C51RC2-3CSUMAT89C51CC01CA-SLSUMAT89C51CC02CA-TISUMAT89C51RC2-SLRUM
Package / Case-44-LCC (J-Lead)44-LCC (J-Lead)40-DIP (0.600", 15.24mm)44-LCC (J-Lead)44-LCC (J-Lead)40-DIP (0.600", 15.24mm)44-LCC (J-Lead)28-SOIC (0.295", 7.50mm Width)44-LCC (J-Lead)
Operating Temperature--40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Connectivity-UART/USARTSPI, UART/USARTSPI, UART/USARTUART/USARTSPI, UART/USARTSPI, UART/USARTCANbus, UART/USARTCANbus, UART/USARTSPI, UART/USART
Core Processor-805180C51805180C5180C5180C5180C5180C5180C51
Core Size-8-Bit8-Bit8-Bit8-Bit8-Bit8-Bit8-Bit8-Bit8-Bit
Extracted Price1.00955.374314.37756.1666--13.254611.2629-8.5959
Inventory As Of2026-05-152026-05-152026-05-152026-05-15--2026-05-152026-05-15-2026-05-13
Inventory SourceWinsourceWinsourceWinsourceWinsource--WinsourceWinsource-Winsource
Inventory Source File/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx--/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx-/Volumes/T7 Shield/电子元器件数据/抓取的数据/Win-Source数据/winsource_未曾下架数据_202605_1.xlsx
Number of I/O-323432363232342032
Oscillator Type-InternalExternalInternalExternalExternalExternalExternalExternalExternal
Peripherals-WDTPOR, PWM, WDTWDTPOR, PWM, WDTPOR, PWM, WDTPOR, PWM, WDTPOR, PWM, WDTPOR, PWM, WDTPOR, PWM, WDT
Price Formulawinsource min price * 2winsource min price * 2winsource min price * 2winsource min price * 2--winsource min price * 2winsource min price * 2-winsource min price * 2
Program Memory Size-20KB (20K x 8)64KB (64K x 8)32KB (32K x 8)64KB (64K x 8)32KB (32K x 8)32KB (32K x 8)32KB (32K x 8)16KB (16K x 8)32KB (32K x 8)
Program Memory Type-FlashFlashFlashFlashFlashFlashFlashFlashFlash
RAM Size-256 x 82K x 8512 x 82.25K x 81.25K x 81.25K x 81.25K x 8512 x 81.25K x 8
Source CategoryIntegrated Circuits (ICs) > Memory > FlashIntegrated Circuits (ICs) > Embedded > Embedded - MicrocontrollersIntegrated Circuits (ICs) > Embedded > Embedded - MicrocontrollersIntegrated Circuits (ICs) > Embedded > Embedded - Microcontrollers--Integrated Circuits (ICs) > Embedded > Embedded - MicrocontrollersIntegrated Circuits (ICs) > Embedded > Embedded - Microcontrollers-Integrated Circuits (ICs) > Embedded > Embedded - Microcontrollers
Source ManufacturerAtmelAtmelMicrochip TechnologyAtmel--Microchip TechnologyMicrochip Technology-Microchip Technology
Speed-24MHz60MHz24MHz60MHz40MHz60MHz40MHz40MHz60MHz
Stock260004531100220--297715-2040
Supplier Device Package-44-PLCC (16.6x16.6)44-PLCC (16.6x16.6)40-PDIL44-PLCC (16.6x16.6)44-PLCC (16.6x16.6)40-PDIL44-PLCC (16.6x16.6)28-SOIC44-PLCC (16.6x16.6)
Supply Voltage-4.5V ~ 5.5V2.7V ~ 5.5V4V ~ 5.5V3V ~ 5.5V2.7V ~ 3.6V2.7V ~ 5.5V3V ~ 5.5V3V ~ 5.5V2.7V ~ 5.5V
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Selection Guide
📦Package
44-LCC (J-Lead)→AT89C55WD-24JUAT89C51RD2-SLRUMAT89C51AC3-SLSUMAT89C51RC2-SLRULAT89C51CC01CA-SLSUMAT89C51RC2-SLRUM
40-DIP (0.600", 15.24mm)→AT89C51RC-24PUAT89C51RC2-3CSUM
28-SOIC (0.295", 7.50mm Width)→AT89C51CC02CA-TISUM

Base Numbers

Base NumberDescriptionVariantsStatusAction
AT89CAT89C variants from Microchip Technology24 MPNsActiveView Details