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


Pinout




Specifications

Operating Temperature................... -55°C to +125°C
Storage Temperature...................... -65°C to +150°C
Voltage on Any Pin
with Respect to Ground ..................... -1.0V to +7.0V
Maximum Operating Voltage ............................. 6.6V
DC Output Current ....................................... 15.0 mA

*NOTICE: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


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 AT48801, disabling all other chip functions until the next hardware reset.