AT89S8253-24JU 8-bit MCS-8051 microcontroller, 12 KB, 24 MHz, PLCC-44

AT89S8253

Description: 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 Atmel’s 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 Atmel AT89S8253 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

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