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Data Sheet

FULL DATA SHEET (PDF, 1.2MB) Download   E-Mail

Description

The DS1371 is a 32-bit binary counter that is designed to continuously count time in seconds. An additional counter that can generate a periodic alarm or serve as a watchdog timer is also provided. If enabled as a watchdog timer, the watchdog strobe input pin provides a hardware reset of the counter. If disabled, this counter can be used as 3 Bytes of general-purpose RAM. A configurable output can be used as an interrupt or provide a square wave at one of four selectable frequencies. The device is programmed serially through a I²C bidirectional bus.

Key Features		Applications/Uses
32-Bit Binary Counter 24-Bit Binary Counter Provides Periodic Alarm, Watchdog Timer, or RAM Strobe Input to Reset Watchdog Timer Single Output Configurable as Interrupt or Square Wave I²C Serial Interface Low-Voltage Operation Operating Temperature Range: -40°C to +85°C Available in 8-Pin µSOP		Elapsed Time Measurements Point-of-Sale Equipment Portable Instrumentation Servers

Application Notes

Application Note 58: Crystal Considerations with Dallas Real-Time Clocks (RTCs) - DS1371 Application Note 504: Design Considerations for Dallas Semiconductor Real-Time Clocks - DS1371 Application Note 511: Using the DS1672 Low-Voltage Serial Timekeeping IC - DS1371 Application Note 512: Using the Watchdog/Alarm Counter in the DS1371 and DS1374 Real-Time Clocks - DS1371 Application Note 517: DS1371/DS1372/DS1374 32-Bit Binary Counter Time Conversion - DS1371 Application Note 701: Using the DS32kHz with Dallas Real-Time Clocks - DS1371

Evaluation Kits

none

Design Guides

Real-Time Clocks (PDF)

Reliability Reports

Reliability Report: DS1371.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-4 of 4
DS1371	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1371U			µMAX;8 pin;16 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1371U/T&R			µMAX;8 pin;16 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1371U+			µMAX;8 pin;16 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1371U+T&R			µMAX;8 pin;16 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2002-11-21

Related Products

DS1672 I²C 32-Bit Binary Counter RTC DS1374, DS1374C, DS1374U I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits