Features

• 8-Bit, P Bus Compatible

- Multiplexed or Direct Addressing

• Regulated Oscillator Supply Ensures Frequency Stability

and Low Power

• Time From 1/100 Seconds to 99 Years

• Software Selectable 12/24 Hour Format

• Latched Time Data Ensures No Roll Over During Read

• Full Calendar with Automatic Leap Year Correction

• On-Chip Battery Backup Switchover Circuit

• Access Time Less than 300ns

• 4 Programmable Crystal Oscillator Frequencies Over

Industrial Temperature Range

• 3 Programmable Crystal Oscillator Frequencies Over

Military Temperature Range

• On-Chip Alarm Comparator and RAM

• Interrupts from Alarm and 6 Selectable Periodic Intervals

• Standby Micro-Power Operation: 1.2A Typical at 3.0V

and 32kHz Crystal

Applications

• Portable and Personal Computers

• Data Logging

• Industrial Control Systems

• Point Of Sale

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”