The AT89S8253-24AU is a 8-bit low-power high-performance CMOS Microcontroller with 12kB of In-System Programmable (ISP) flash program memory and 2kB of EEPROM data memory. The device is manufactured using Atmel"s high-density non-volatile 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 non-volatile 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.
● Compatible with MCS®-51 products
● 12kB of In-System Programmable (ISP) flash program memory
● 2kB EEPROM data memory
● 64-byte User signature array
● Three-level program memory lock
● 256 x 8-bit Internal RAM
● 32 Programmable I/O lines
● Three 16-bit timers/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 mode)
● Four-level enhanced interrupt controller
● Programmable and fuse-able x2 clock option
● Internal power-on reset
