HomeCommunitySubjectAT89S8253 Microcontroller: Pinout, Equivalent and Datasheet

AT89S8253 Microcontroller: Pinout, Equivalent and Datasheet

MCU 8-bit AT89 8051 CISC 12KB Flash 3.3V/5V 40-Pin PDIP The AT89S8253 is a low-power, high-performance CMOS 8-bit microcontroller with 12K bytes of In-System Programmable (ISP) Flash program memory and 2K bytes of EEPROM data memory.

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Jan 27, 2022

Rose Gregory

What is a microcontroller and how microcontroller works

MCU 8-bit AT89 8051 CISC 12KB Flash 3.3V/5V 40-Pin PDIP

The AT89S8253 is a low-power, high-performance CMOS 8-bit microcontroller with 12K bytes of In-System Programmable (ISP) Flash program memory and 2K bytes of EEPROM data memory. The device is manufactured using high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

AT89S8253-24PU

3000In Stock

Min.: 1 Mult.: 1

Quantity	Unit Price	Ext. Price
1+	$9.77418	$9.77
10+	$9.22092	$92.21
100+	$8.69898	$869.9
500+	$8.20659	$4103.3
1000+	$7.74207	$7742.07

Unit Price:$9.77418

Subtotal: $9.77

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AT89S8253 Pinout

The following figure is the diagram of AT89S8253 pinout.

AT89S8253 CAD Model

The followings are AT89S8253 Symbol, Footprint, and 3D Model.

PCB Symbol

PCB Footprint

3D Model

AT89S8253 Overview

The AT89S8253 is a low-power, high-performance CMOS 8-bit microcontroller with 12K bytes of In-System Programmable (ISP) Flash program memory and 2K bytes of EEPROM data memory. The device is manufactured using high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout. The 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. By combining a versatile 8-bit CPU with downloadable Flash on a monolithic chip, the AT89S8253 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

This article provides you with a basic overview of the AT89S8253 Microcontroller, including its pin descriptions, features and specifications, etc., to help you quickly understand what AT89S8253 is.

AT89S8253 Features

● Compatible with MCS^®51 Products

● 12K Bytes of In-System Programmable (ISP) Flash Program Memory

◆ SPI Serial Interface for Program Downloading

◆ Endurance: 10,000 Write/Erase Cycles

● 2K Bytes EEPROM Data Memory

◆ Endurance: 100,000 Write/Erase Cycles

● 64-byte User Signature Array

● 2.7V to 5.5V Operating Range

● Fully Static Operation: 0 Hz to 24 MHz (in x1 and x2 Modes)

● Three-level Program Memory Lock

● 256 x 8-bit Internal RAM

● 32 Programmable I/O Lines

● Three 16-bit Timer/Counters

● Nine Interrupt Sources

● Enhanced UART Serial Port with Framing Error Detection and Automatic Address Recognition

● Enhanced SPI (Double Write/Read Buffered) Serial Interface

● Low-power Idle and Power-down Modes

● Interrupt Recovery from Power-down Mode

● Programmable Watchdog Timer

● Dual Data Pointer

● Power-off Flag

● Flexible ISP Programming (Byte and Page Modes)

◆ Page Mode: 64 Bytes/Page for Code Memory, 32 Bytes/Page for Data Memory

● Four-level Enhanced Interrupt Controller

● Programmable and Fuseable x2 Clock Option

● Internal Power-on Reset

● 42-pin PDIP Package Option for Reduced EMC Emission

● Green (Pb/Halide-free) Packaging Option

Specifications

Microchip Technology AT89S8253-24PU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology AT89S8253-24PU.

AT89S8253-24PU Tech Specifications

Microchip Technology AT89S8253-24PU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology AT89S8253-24PU.

Product Attribute	Attribute Value
Factory Lead Time	12 Weeks
Mount	Through Hole
Mounting Type	Through Hole
Package / Case	40-DIP (0.600, 15.24mm)
Number of Pins	40Pins
Number of I/Os	32I/Os
Watchdog Timers	Yes
Operating Temperature	-40°C~85°C TA
Packaging	Tube
Series	89S
Published	1997
JESD-609 Code	e3
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	40Terminations
Terminal Finish	Matte Tin (Sn)
Terminal Position	DUAL

Product Attribute	Attribute Value
Supply Voltage	4V
Terminal Pitch	2.54mm
Frequency	24MHz
Base Part Number	AT89S8253
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	2.7V
Interface	SPI, UART, USART
Memory Size	12kB
Oscillator Type	External
RAM Size	256 x 8
Voltage - Supply (Vcc/Vdd)	2.7V~5.5V
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER
Core Processor	8051
Peripherals	POR, WDT
Program Memory Type	FLASH
Core Size	8-Bit
Program Memory Size	12KB 12K x 8
Connectivity	SPI, UART/USART

Product Attribute	Attribute Value
Bit Size	8
Access Time	24 μs
Has ADC	NO
DMA Channels	NO
Data Bus Width	8b
PWM Channels	NO
DAC Channels	NO
Number of Timers/Counters	3Timers/Counters
Address Bus Width	8b
EEPROM Size	2K x 8
Number of SPI Channels	1SPI Channel
Height	4.445mm
Length	52.58mm
Width	13.97mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

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AT89S8253 Functional Block Diagram

The following is the Block Diagram of AT89S8253.

Block Diagram

AT89S8253 Equivalent

Model number	Manufacturer	Description
AT89S8253-24PSU	Microchip Technology Inc	Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PDIP42
AT89S8253-24JC	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 8051 CPU, 24MHz, CMOS, PQCC44, PLASTIC, MS-018AC, LCC-44
AT89S8253-24SI	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 8051 CPU, 24MHz, CMOS, PDIP42, 0.600 INCH, PLASTIC, MS-011AC, DIP-42
AT89S8253-24SU	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 8051 CPU, 24MHz, CMOS, PDIP42, 0.600 INCH, GREEN, PLASTIC, MS-011AC, DIP-42
AT89S8253-24PI	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 8051 CPU, 24MHz, CMOS, PDIP40, 0.600 INCH, PLASTIC, MS-011AC, DIP-40
AT89S8253-24SL	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PDIP42, 0.600 INCH, PLASTIC, MS-011AC, DIP-42
AT89S8253-24PC	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 8051 CPU, 24MHz, CMOS, PDIP40, 0.600 INCH, PLASTIC, MS-011AC, DIP-40
AT89S8253-24AL	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PQFP44, 10 X 10 MM, 1 MM THICKNESS, 0.80 MM PITCH, PLASTIC, MS-026ACB, TQFP-44
AT89S8253-24JUR	Microchip Technology Inc	Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PQCC44
AT89S8253-24JL	Atmel Corporation	Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PQCC44, PLASTIC, MS-018AC, LCC-44

AT89S8253 Package

The following diagrams show the AT89S8253 package.

View A

View B

View C

AT89S8253 Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Datasheet PDF

Download datasheets and manufacturer documentation for Microchip Technology AT89S8253-24PU.

AT89S8253-24PU Documents

Download datasheets and manufacturer documentation for AT89S8253-24PU

Datasheets

AT89S8253

AT89S8253-24PU-Microchip-datasheet-11854232.pdf

AT89S8253-24PU-Microchip-datasheet-538979.pdf

AT89S8253 Rev.R Errata

PCN Design/Specification

Copper Bonding Wire 17/Oct/2013

Marking Chgs 11/Jul/2017

PCN Packaging

Shipping Tube 19/Sep/2018

Transfer to Microchip/Label/Pkg 5/Sep/2016

PCN Assembly/Origin

Mult Devices 10/Jul/2018

ConflictMineralStatement

Microchip-company-68.pdf

Frequently Asked Questions

How many pins of AT89S8253?

40 Pins.

What’s the operating temperature of AT89S8253?

-40°C~85°C TA

What is the essential property of the AT89S8253?

The AT89S8253 is a low-power, high-performance CMOS 8-bit microcontroller with 12K bytes of In-System Programmable (ISP) Flash program memory and 2K bytes of EEPROM data memory.

Can AT89S8253 be programmed at any time?

The AT89S8253 is normally shipped with the on-chip Flash code and EEPROM data memory arrays in the erased state (i.e. contents = FFH) and ready to be programmed.

FAQ