32 Programmable I/O Lines , Three 16-bit Timer/Counters , Watchdog Timer , Flexible ISP Programming (Byte and Page Mode) , Full Duplex UART Serial Channel
Power Supply : 4.0V to 5.5V Operating Range , Low-power Idle and Power-down Modes
Eight Interrupt Sources , Interrupt Recovery from Power-down Mode
Compatible with MCS-51Products , Mounting Style : Through Hole , Package: 40 Pin DIP Package , Total Size : 5.3 x 1.6 x 0.8cm/2.1" x 0.63" x 0.315"(LxWxT) , 8KB (ISP) Flash Memory , 256 x 8-bit Internal RAM , Rating Frequency : 24MHz, Maximum Clock Frequency : 33 MHz
The AT89S52 is a low-power, high-performance CMOS 8-bit micro controller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pin out. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful micro controller which provides a highly-flexible and solution to many embedded control applications. FEATURES and USAGE The AT89S52 provides the following standard Features: Compatible with MCS-51Products 8K Bytes of In-System Programmable (ISP) Flash Memory - Endurance: 10,000 Write/Erase Cycles 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/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) In addition, the AT89S52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. INCLUSIONS 1 X ATMEL AT89S52 IC.