Product Summary

The DS12CR887-33 is a real-time clock with Constant-Voltage Trickle Charger. The device provides an RTC/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of batterybacked static RAM. The DS12CR887-33 is accessed through a multiplexed byte-wide interface, which supports both Intel and Motorola modes. The applications of the DS12CR887-33 include: Embedded Systems, Utility Meters, Security Systems, Network Hubs, Bridges, and Routers.

Parametrics

DS12CR887-33 absolute maximum ratings: (1)Voltage Range on VCC Pin Relative to Ground: -0.3V to +6.0V; (2)Operating Temperature Range: -40℃ to +85℃; (3)Storage Temperature Range: -55℃ to +125℃; (4)Soldering Temperature (leads, 10s): +260℃.

Features

DS12CR887-33 features: (1)Trickle-Charge Capability for a Rechargeable Battery or Super Cap; (2)Selectable Intel or Motorola Bus Timing; (3)RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation to 2100; (4)Interrupt Output with Three Independently Maskable Interrupt Flags; (5)Time-of-Day Alarm is Once-per-Second to Onceper-Day; (6)Periodic Rates from 122μs to 500ms; (7)End-of-Clock Update Cycle Flag; (8)14 Bytes of Clock and Control Registers; (9)114 Bytes of General-Purpose RAM with Clear Input; (10)Programmable Square-Wave Output; (11)Automatic Power-Fail Detect and Switch Circuitry; (12)+5.0V or +3.3V Operation; (13)Industrial Temperature Range; (14)DS12CR887 Encapsulated DIP (EDIP) Module with Integrated Battery and Crystal.

Diagrams

<IMG border=0 alt="DS12CR887-33 diagram" src="http://www.seekic.com/uploadfile/ic-mfg/2012710221954732.jpg">

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS12CR887-33
DS12CR887-33
Maxim Integrated Products
Real Time Clock
Data Sheet
Negotiable 
DS12CR887-33+
DS12CR887-33+
Maxim Integrated Products
Real Time Clock RTC w/Constant V Trickle Charger
Data Sheet
0-1: $7.03
1-25: $4.72
25-50: $3.42
50-100: $3.38