The AT89S8253 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.
Features:-
- 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
* product image for illustration purposes only. actual product may vary.
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