DS1374U-3+T&R

更新时间： 2024-11-16 13:07:23

品牌	Logo	应用领域
美信 - MAXIM		计数器
页数	文件大小	规格书
15页	615K
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数据手册
替代型号

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DS1374U-3+T&R 数据手册

Rev 1; 9/04

I C, 32-Bit Binary Counter Watchdog RTC with

Trickle Charger and Reset Input/Output

General Description

Features

The DS1374 is a 32-bit binary counter designed to contin-

uously count time in seconds. An additional counter gen-

erates a periodic alarm or serves as a watchdog timer. If

disabled, this counter can be used as 3 bytes of non-

volatile (NV) RAM. Separate output pins are provided for

an interrupt and a square wave at one of four selectable

frequencies. A precision temperature-compensated refer-

♦ 32-Bit Binary Counter

♦ Second Binary Counter Provides Time-of-Day

Alarm, Watchdog Timer, or NV RAM

♦ Separate Square-Wave and Interrupt Output Pins

♦ I C Serial Interface

♦ Automatic Power-Fail Detect and Switch Circuitry

ence and comparator circuit monitor the status of V

♦ Single-Pin Pushbutton Reset Input/Open-Drain

detect power failures, provide a reset output, and auto-

matically 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 pro-

Reset Output

♦ Low-Voltage Operation

♦ Trickle-Charge Capability

grammed serially through an I C™ serial interface.

♦ -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)

Applications

♦ Underwriters Laboratory (UL) Recognized

Portable Instruments

Point-of-Sale Equipment

Medical Equipment

Telecommunications

Ordering Information

Typical Operating Circuit

PIN-

PART

TEMP RANGE

TOP MARK

PACKAGE

DS1374U-18 -40°C to +85°C 10 µSOP

DS1374U-3 -40°C to +85°C 10 µSOP

DS1374U-33 -40°C to +85°C 10 µSOP

DS1374-18

DS1374-3

DS1374-33

RPU = t /C

CRYSTAL

RPU RPU

DS1374C-18 -40°C to +85°C 16 SO, 0.300" DS1374C-18

DS1374C-3 -40°C to +85°C 16 SO, 0.300" DS1374C-3

SQW

SCL

SDA

CPU

DS1374C-33 -40°C to +85°C 16 SO, 0.300" DS1374C-33

DS1374

INT

PRIMARY

BATTERY,

Pin Configurations appear at the end of the data sheet.

BACKUP

RST

GND

RECHARGEABLE

BATTERY, OR

SUPER CAPACITOR

N.O.

PUSHBUTTON

RESET

I C is a trademark of Philips Corp. Purchase of I C compo-

nents of Maxim Integrated Products, Inc., or one of its subli-

censed Associated Companies, conveys a license under the

Philips I C Patent Rights to use these components in an I C

system, provided that the system conforms to the I C Standard

Specification as defined by Philips.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...15

中文翻译

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DS1374U-3+T&R 替代型号

型号	品牌	替代类型	描述	数据表
DS1374U-3+	MAXIM	完全替代	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO10, 3 MM, ROHS COMPLIANT, MIC
DS1374U-3	MAXIM	类似代替	I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

与DS1374U-3+T&R相关器件

型号	品牌	获取价格	描述	数据表
DS1374U-33	MAXIM	获取价格	I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
DS1374U-33/T&R	MAXIM	获取价格	暂无描述
DS1374U-33+	MAXIM	获取价格	暂无描述
DS1375	DALLAS	获取价格	2-Wire Digital Input RTC with Alarm
DS1375	MAXIM	获取价格	I2C Digital Input RTC with Alarm
DS1375	ADI	获取价格	I2C数字输入RTC，带有闹钟功能
DS1375T	ROCHESTER	获取价格	1 TIMER(S), REAL TIME CLOCK, DSO6, 3 X 3 MM, 0.80 MM HEIGHT, THIN, QFN-6
DS1375T/T&R	MAXIM	获取价格	暂无描述
DS1375T+	MAXIM	获取价格	I2C Digital Input RTC with Alarm
DS1375T+T&R	MAXIM	获取价格	Real Time Clock, Volatile, 1 Timer(s), CMOS, 3 X 3 MM, 0.80 MM HEIGHT, THIN, QFN-6

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