Specification	AT89S8253-24AU

Connectivity	SPI, UART/USART
Core Processor	8051
Core Size	8-Bit
EEPROM Size	2K x 8
Mounting Type	Surface Mount
Number of I/O	32
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	External
Package / Case	44-TQFP
Peripherals	WDT, POR
Program Memory Size	12 KB
Program Memory Type	FLASH
RAM Size	256 x 8
Speed	24 MHz
Supplier Device Package	44-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	2.7 V

AT89S8253 Series

Part	Program Memory Size	Package / Case	Oscillator Type	Core Size	Speed	Supplier Device Package	RAM Size	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	EEPROM Size	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Number of I/O	Peripherals	Program Memory Type	Connectivity	Core Processor	Package / Case	Package / Case
Microchip Technology AT89S8253-24JU	12 KB	44-LCC (J-Lead)	External	8-Bit	24 MHz	44-PLCC (16.6x16.6)	256 x 8	85 °C	-40 °C	Surface Mount	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051
Microchip Technology AT89S8253-24PU	12 KB	40-DIP	External	8-Bit	24 MHz	40-PDIP	256 x 8	85 °C	-40 °C	Through Hole	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051	15.24 mm	0.6 in
Microchip Technology AT89S8253-24AI	12 KB	44-TQFP	External	8-Bit	24 MHz	44-TQFP (10x10)	256 x 8	85 °C	-40 °C	Surface Mount	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051
Microchip Technology AT89S8253-24PI	12 KB	40-DIP	External	8-Bit	24 MHz	40-PDIP	256 x 8	85 °C	-40 °C	Through Hole	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051	15.24 mm	0.6 in
Microchip Technology AT89S8253-24JC	12 KB	44-LCC (J-Lead)	External	8-Bit	24 MHz	44-PLCC (16.6x16.6)	256 x 8	70 °C	0 °C	Surface Mount	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051
Microchip Technology AT89S8253-24AU	12 KB	44-TQFP	External	8-Bit	24 MHz	44-TQFP (10x10)	256 x 8	85 °C	-40 °C	Surface Mount	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051
Microchip Technology AT89S8253-24PC	12 KB	40-DIP	External	8-Bit	24 MHz	40-PDIP	256 x 8	70 °C	0 °C	Through Hole	2K x 8	2.7 V	5.5 V	32	POR WDT	FLASH	SPI UART/USART	8051	15.24 mm	0.6 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tray	1	$ 2.70
		25	$ 2.49
		100	$ 2.24
Microchip Direct	TRAY	1	$ 2.70
		25	$ 2.49
		100	$ 2.24
		1000	$ 2.07
		5000	$ 1.97
Newark	Each	1	$ 2.81
		10	$ 2.70
		25	$ 2.59
		50	$ 2.46
		100	$ 2.33

Description

General part information

AT89S8253 Series

Low-power, high-performance, CMOS 8-bit microcontroller with 12KB of ISP flash program memory and 2KB of EEPROM data memory. The device is manufactured using Microchip high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51?? instruction set and pinout. On-chip downloadable flash allows the program memory to be reprogrammed in-system through an SPI serial interface or by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with downloadable flash provides a highly-flexible and cost-effective solution for many embedded control applications.

Documents

Technical documentation and resources

AT89S8253-24AU

Deep-Dive with AI

AT89S8253-24AU

Deep-Dive with AI

Technical Specifications

AT89S8253 Series

Pricing

Description

AT89S8253 Series

Documents

AT89S8253, Rev. R Datasheet

Program Examples for 8051 Timers

AT89S8253 Rev. K Datasheet

AT89S8253 Rev. J Datasheet

AT89S8253 Rev. M Datasheet

AT89S8253 - Complete Datasheet

Datasheet

AT89S8253 Series