DS1374
PRODUCTIONI²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
Elapsed Time Counter Provides Power-On Reset, Watchdog or Alarm, and Square Wave
Part Details
- 32-Bit Binary Counter
- Second Binary Counter Provides Time-of-Day Alarm, Watchdog Timer, or NV RAM
- Separate Square-Wave and Interrupt Output Pins
- I²C Serial Interface
- Automatic Power-Fail Detect and Switch Circuitry
- Single-Pin Pushbutton Reset Input/Open-Drain Reset Output
- Low-Voltage Operation
- Trickle-Charge Capability
- -40°C to +85°C Operating Temperature Range
- 10-Pin µSOP, 16-Pin SO
- Available in a Surface-Mount Package with an Integrated Crystal (DS1374C)
The DS1374 is a 32-bit binary counter designed to continuously count time in seconds. An additional counter generates a periodic alarm or serves as a watchdog timer. If disabled, this counter can be used as 3 bytes of nonvolatile (NV) RAM. Separate output pins are provided for an interrupt and a square wave at one of four selectable frequencies. A precision temperature-compensated reference and comparator circuit monitor the status of VCC to detect power failures, provide a reset output, and automatically switch to the backup supply when necessary.
Additionally, the reset pin is monitored as a pushbutton input for externally generating a reset. The device is programmed serially through an I²C serial interface.
Applications
- Medical Equipment
- Point-of-Sale Equipment
- Portable Instrumentation
- Telecommunications
Documentation
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
Latest Discussions
No discussions on DS1374 yet. Have something to say?
Start a Discussion on EngineerZone®