AT89S8253-24JU

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AT89S8253-24JU

+Nomenclature

IC MCU 8BIT 12KB FLASH 44PLCC

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Spécifications

Attribut Valeur
Package / Case Tube
Series 89S
Part Status Active
Core Processor 8051
Core Size 8-Bit
Speed 24MHz
Connectivity SPI, UART/USART
Peripherals POR, WDT
Number of I/O 32
Program Memory Size 12KB (12K x 8)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Oscillator Type External
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Présentation

Description

The AT89S8253-24JU is an 8-bit microcontroller from Atmel’s 8051 family. Key features:
- Flash Memory: 12KB (8KB for application, 4KB for bootloader).
- EEPROM: 2KB for data storage.
- Clock Speed: 24MHz (max).
- I/O Ports: 32 programmable pins.
- Peripherals: SPI, UART, timers, watchdog timer.
- Operating Voltage: 4V–6V.
- Package: 44-lead PLCC.
Ideal for embedded systems requiring reprogrammable memory and reliable performance. Supports in-system programming (ISP) via SPI, easing firmware updates.

Equivalent

The AT89S8253-24JU is an 8-bit microcontroller from Atmel (now Microchip). Equivalent alternatives include:
1. AT89S52 (similar architecture, fewer features).
2. AT89LP8252 (low-power variant).
3. P89V51RD2 (NXP alternative).
4. STC89C52 (common Chinese replacement).
For modern equivalents, consider ATmega328P (AVR) or PIC16F877A (Microchip), though they require code adaptation. Check pin compatibility and features before substitution.

Application

The AT89S8253-24JU, an 8-bit microcontroller from Atmel, is commonly used in:
- Embedded Systems: Control applications like home automation, security systems, and smart devices.
- Industrial Automation: Motor control, sensor interfacing, and process monitoring.
- Consumer Electronics: Appliances, toys, and remote controls.
- Automotive: Basic control modules and dashboard systems.
- Communication Devices: Modems, serial data logging, and peripheral interfacing.
Its 24MHz clock speed, 8KB Flash, 2KB EEPROM, and SPI/UART interfaces make it suitable for cost-effective, low-power embedded solutions.

Package

The AT89S8253-24JU is packaged in a PLCC-44 (Plastic Leaded Chip Carrier) format. This surface-mount package has 44 leads arranged in a square shape with J-leads, suitable for high-density PCB applications. The "JU" suffix indicates the package type and lead finish (typically tin-plated). It operates at 24 MHz (denoted by "-24").

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