AT48801

AT48801 Features Compatible with MCS-51™ Products 8K bytes of On-Board Program Memory Fully Static Operation: 0 Hz to 16 MHz 256 x 8 Bit Internal RAM 32 Programmable I/O Lines Three 16 Bit Timer/Counters Eight Interrupt Sources Programmable Serial Channel Low Power Idle and Power Down Modes Description The AT48801 is a low-power, high-performance CMOS 8 bit microcomputer with 8K bytes on-board program memory. The device is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. The Atmel AT48801 is a powerful microcomputer which provides a highly flexible and cost effective solution to spread-spectrum applications. The AT48801 provides the following standard features: 8K bytes of program memory, 256-bytes of RAM, 32 I/O lines, three 16 bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT48801 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. The Power Down Mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next hardware reset. 8 Bit SpreadSpectrum Microcontroller Preliminary Pin Configuration PQFP 0629A 1-1 Block Diagram 1-2 AT48801 AT48801 Pin Description VCC Supply voltage....