Description: The AT89S52-24AU is a 8-bit low-power high-performance CMOS Microcontroller with 8kB of in-system programmable Flash memory. The device is manufactured using Atmel's high-density non-volatile memory technology and is compatible with the industry-standard 8... Compatible with MCS-51 products 8kB In-System Programmable (ISP) flash memory 10,000 Write/erase cycles endurance Three-level program memory lock 256 x 8-bit Internal RAM 32 Programmable I/O lines Three 16-bit timers/counters Eight interrupt sources Full duplex UART serial channel Low-power idle and power-down modes Interrupt recovery from power-down mode Watchdog timer Dual data pointer Power-off flag Fast programming time Flexible ISP programming (byte and page mode)