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Microchip Technology AT89S52-24PU Microcontrollers

IC MCU 8BIT 8KB FLASH 40DIP

1,745 ActiveMicrochip TechnologyAT89S40-DIP (0.600", 15.24mm)$4.24
AT89S52-24PU 40-DIP (0.600", 15.24mm) package illustration

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

AT89S52-24PU
Part Number (MPN)
AT89S52-24PU
Base Model
Detailed Description
IC MCU 8BIT 8KB FLASH 40DIP
Package
40-DIP (0.600", 15.24mm)
Lifecycle Status
Active
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Ordering Code Family

AT89S groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

3 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology AT89S52-24PU Microcontrollers technical specifications.

General

RAM Size
256 x 8
RoHS
Yes
Number of Pins
44
Package / Case
40-DIP
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
4V ~ 5.5V
Lifecycle Status
Active
Peripherals
WDT
Number of I/O
32

Related Parts Comparison (AT89S52-24PU vs AT89S8253-24AU vs AT89S8253-24PU vs AT89S8253-24JU)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case40-DIP44-TQFP40-DIP44-LCC
Mounting TypeThrough HoleSurface MountThrough HoleSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage4V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V
Number of Pins44444444
Core Processor8051805180518051
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size256 x 8256 x 8256 x 8256 x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ADC Channels0000
ConnectivityUART/USARTSPI, UART/USARTSPI, UART/USARTSPI, UART/USART
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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

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