Microchip TechnologyUnited States

AT89S8253-24AI

ObsoleteMicrocontrollers44-TQFP

IC MCU 8BIT 12KB FLASH 44TQFP

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Technical parameters

Key specs

Core8051
Core size8 bit
Speed24 MHzMax
Flash12 kB
RAM256 B
I/O count32
Supply voltage2.7 ~ 5.5 V
Power
Voltage - Supply (Vcc/Vdd)2.7V ~ 5.5V
Environment and package
Core Size8-Bit
EEPROM Size2K x 8
Mounting TypeSurface Mount
Operating Temperature-40°C~85°C(TA)
PackageTray
Package / Case44-TQFP
Program Memory Size12KB (12K x 8)
RAM Size256 x 8
Supplier Device Package44-TQFP (10x10)
Other
Base Product NumberAT89S8253
ConnectivitySPI, UART/USART
Core Processor8051
Data Converters-
MfrMicrochip Technology
Number of I/O32
Oscillator TypeExternal
PeripheralsPOR, WDT
Product StatusObsolete
Program Memory TypeFLASH
Series89S
Speed24MHz

Documents

DatasheetDatasheet · 1.3 MB · 2026-09-21DatasheetDatasheet · 1.3 MB · 2026-09-21
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