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Microchip Technology AT89S8253-24AU Microcontroller, Microprocessor, FPGA Modules

IC MCU 8BIT 12KB FLASH 44TQFP

57,412 ActiveMicrochip Technology44-TQFP$6.24RoHS
AT89S8253-24AU 44-TQFP package illustration

Same model may have multiple batches, images only for reference.

AT89S8253-24AU
Part Number (MPN)
AT89S8253-24AU
Detailed Description
IC MCU 8BIT 12KB FLASH 44TQFP
Package
44-TQFP
Key Features
Package / Case: 44-TQFP; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
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Technical Specifications

Microchip Technology AT89S8253-24AU Microcontroller, Microprocessor, FPGA Modules technical specifications.

General

RAM Size
256 x 8
RoHS
Yes
Number of Pins
44
Package / Case
44-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Peripherals
POR, WDT
Number of I/O
32

Alternate Parts Comparison (AT89S8253-24AU vs PIC24FJ64GA004T-I/PT vs PIC18C442-I/PT vs DSPIC33FJ32MC204-I/PT)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case44-TQFP44-TQFP44-TQFP44-TQFP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.7V ~ 5.5V2V ~ 3.6V4.2V ~ 5.5V3V ~ 3.6V
Core Processor8051PICPICdsPIC
Core Size8-Bit16-Bit8-Bit16-Bit
RAM Size256 x 88K x 8512 x 82K x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ConnectivitySPI, UART/USARTI²C, PMP, SPI, UART/USARTI²C, SPI, UART/USARTI²C, IrDA, LINbus, SPI, UART/USART
Number of I/O32353335
Oscillator TypeExternalInternalExternalInternal
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

More Parts in Microcontrollers

Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.