Datasheet > DS1543-70

DS1543-70

更新时间： 2024-11-16 21:54:23

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
17页	201K
描述
64k NV Timekeeping RAM

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

DS1543-70 数据手册

PRELIMINARY

DS1543

64k NV Timekeeping RAM

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ

Integrated NV SRAM, real time clock, crystal,

power-fail control circuit and lithium energy

source

RST

A12

V_CC

IRQ/FT

Clock registers are accessed identical to the

static RAM. These registers are resident in the

sixteen top RAM locations

Totally nonvolatile with over 10 years of

operation in the absence of power

Precision Power-On Reset

A11

A10

DQ7

DQ6

DQ5

DQ4

DQ3

DQ0

DQ1

DQ2

GND

ꢀ

Programmable Watchdog Timer and RTC

Alarm

ꢀ

BCD coded year, month, date, day, hours,

minutes, and seconds with automatic leap year

compensation valid up to the year 2100

Battery voltage level indicator flag

Power-fail write protection allows for ±10%

Vcc power supply tolerance

28-Pin Encapsulated Package

(700 Mil Extended)

PIN DESCRIPTION

ꢀ

A0-A12

- Address Input

DQ0-DQ7

- Data Input/Outputs

ꢀ

Lithium energy source is electrically

disconnected to retain freshness until power is

applied for the first time

IRQ \FT

- Interrupt, Frequency Test

Output (Open-Drain)

RST

- Power-On Reset Output

(Open-Drain)

- Chip Enable

ORDERING INFORMATION

DS1543-XXX

(5V)

-70

- Output Enable

70 ns access

- Write Enable

- Power Supply Input

- Ground

-100 100 ns access

V_CC

GND

- No Connection

*DS1543W-XXX

(3.3V)

-120 120 ns access

-150 150 ns access

1 of 17

081000

12 3 4 5 6 7...17

中文翻译

下载PDF

与DS1543-70相关器件

型号	品牌	获取价格	描述	数据表
DS1543P	DALLAS	获取价格	64K NV Real Time Clocks RAM
DS1543P-100	MAXIM	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, POWERCAP-34
DS1543P-70	DALLAS	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, POWERCAP-34
DS1543P-70	MAXIM	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, POWERCAP-34
DS1543W-100	DALLAS	获取价格	64k NV Timekeeping RAM
DS1543W-120	DALLAS	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28, 0.700 INCH, PLASTIC, DIP-28
DS1543W-120	MAXIM	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28, 0.700 INCH, EXTENDED, DIP-28
DS1543W-70	DALLAS	获取价格	64k NV Timekeeping RAM
DS1543WP-120	MAXIM	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, POWERCAP-34
DS1543WP-120	DALLAS	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, POWERCAP-34