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)”