Datasheet > DS1312

DS1312

更新时间： 2025-08-10 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		电池控制器
页数	文件大小	规格书
12页	500K
描述
非易失控制器，带有锂电池监测器

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中文翻译

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数据手册

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DS1312 数据手册

19-6306; Rev 6/12

DS1312

Nonvolatile Controller with Lithium Battery Monitor

FEATURES

PIN ASSIGNMENT

. Converts CMOS SRAM into nonvolatile

memory

V_CCO

V_BAT

TOL

GND

V_CCI

V_CCO

V_BAT

TOL

GND

V_CCI

. Unconditionally write-protects SRAM when

V_CCis out of tolerance

CEO

CEI

CEO

CEI

. Automatically switches to battery backup

supply when V_CCpower failure occurs

. Monitors voltage of a lithium cell and

provides advanced warning of impending

battery failure

DS1312 8-Pin DIP

(300 mils)

DS1312S-2 8-Pin SOIC

(150 mils)

V_CCO

V_CCI

RST

V_CCI

RST

. Signals low-battery condition on active low

Battery Warning output signal

V_BAT

CEO

. Optional 5% or 10% power-fail detection

. Space-saving 8-pin DIP and SOIC packages

. Optional 16-pin SOIC and 20-pin TSSOP

versions reset processor when power failure

occurs and hold processor in reset during

system power-up

TOL

CEO

GND

CEI

DS1312S 16-Pin SOIC

(300 mils)

GND

CEI

DS1312E 20-Pin TSSOP

. Industrial temperature range of -40°C to

+85°C

PIN DESCRIPTION

V_CCI

V_CCO

V_BAT

- +5V Power Supply Input

- SRAM Power Supply Output

- Backup Battery Input

CEI

- Chip Enable Input

CEO

- Chip Enable Output

- V_CCTolerance Select

TOL

- Battery Warning Output

(Open Drain)

RST

GND

- Reset Output (Open Drain)

- Ground

- No Connection

DESCRIPTION

The DS1312 Nonvolatile Controller with Battery Monitor is a CMOS circuit which solves the application

problem of converting CMOS RAM into nonvolatile memory. Incoming power is monitored for an out-

of-tolerance condition. When such a condition is detected, chip enable is inhibited to accomplish write

protection and the battery is switched on to supply the RAM with uninterrupted power. Special circuitry

uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery

consumption.

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中文翻译

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与DS1312相关器件

型号	品牌	获取价格	描述	数据表
DS1312+	MAXIM	获取价格	Nonvolatile Controller with Lithium Battery Monitor
DS1312E	DALLAS	获取价格	Nonvolatile Controller with Lithium Battery Monitor(202.86 k)
DS1312E+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO20, 0.173 INCH, ROHS COMPLIANT,
DS1312E+	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20, 0.173 INCH, ROHS COMPLIANT, TSSOP-20
DS1312E/T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO20, 0.173 INCH, TSSOP-20
DS1312S	ETC	获取价格	Nonvolatile Controller
DS1312S+	MAXIM	获取价格	Nonvolatile Controller with Lithium Battery Monitor
DS1312S-2	ETC	获取价格	Nonvolatile Controller
DS1312S-2+	MAXIM	获取价格	Nonvolatile Controller with Lithium Battery Monitor
DS1312S-2/T&R/C01	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, SOIC-8