DS12887A DATASHEET PDF

Real Time Clock. NC — No Connection. CS — Chip Select. AS — Address Strobe. DS — Data Strobe.

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Real-Time Clocks. General Description. The devices provide a. The DS integrates a quartz crystal. DIP package. The DS12C adds a century byte at. For all devices, the date at the end of the. A precision. If a primary power failure is detected, the device. A lithium. The device is accessed. Embedded Systems.

Utility Meters. Security Systems. Network Hubs, Bridges, and Routers. Typical Operating Circuit. X1 X2. CS DS AD 0—7. Month, and Year with Leap Year Compensation.

Through Maskable Interrupt Flags. Per Day. Integrated Crystal and Battery DS,. Pin Configurations and Ordering Information appear at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at ,. Operating Temperature Range Commercial noncondensing Industrial noncondensing Storage Temperature Range. Lead Temperature soldering, 10s Note: EDIP is hand or wave-soldered only. Soldering Temperature reflow. These are stress ratings only, and functional.

Exposure to. Note 2. Supply Voltage. V BAT. Note 3. Input Logic 1. V IH Note 3. Input Logic 0. V CC Standby Current. Input Leakage. Input Current. Output at 2. Output at 0. Power-Fail Voltage. VRT Trip Point. I CC1. I CCS. I MOT. Note 4. Note 5. Note 6. Note 7. Download DSA Datasheet. The DS integrates a quartz crystal and lithium energy source into a pin encapsulated DIP package.

The DS12C adds a century byte at address 32h. For all devices, the date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. A precision temperature-compensated circuit monitors the status of V CC. If a primary power failure is detected, the device automatically switches to a backup supply.

A lithium coin-cell battery can be connected to the V BAT input pin on the DS to maintain time and date operation when primary power is absent. The device is accessed through a multiplexed byte-wide interface, which sup- ports both Intel and Motorola modes. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied.

Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

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