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DS1244集成电路(IC)的实时时钟规格书PDF中文资料

DS1244
厂商型号

DS1244

参数属性

DS1244 封装/外壳为28-DIP 模块(0.600",15.24mm);包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC)的实时时钟;产品描述:IC RTC PHANTOM PAR 28-DIP

功能描述

256K NV SRAM with Phantom Clock

封装外壳

28-DIP 模块(0.600",15.24mm)

文件大小

644.11 Kbytes

页面数量

20

生产厂商 Maxim Integrated Products
企业简称

MAXIM美信

中文名称

美信半导体官网

原厂标识
MAXIM
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-8-4 11:37:00

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DS1244规格书详情

DESCRIPTION

The DS1244 256K NV SRAM with a Phantom clock is a fully static nonvolatile RAM (NV SRAM) (organized as 32K words by 8 bits) with a built-in real-time clock. The DS1244 has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent garbled data in both the memory and real-time clock.

FEATURES

■ Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years

■ 32K x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM

■ Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data

■ Watch Function is Transparent to RAM Operation

■ Automatic Leap Year Compensation Valid Up to 2100

■ Full 10 Operating Range

■ Over 10 Years of Data Retention in the Absence of Power

■ Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time

■ DIP Module Only

■ Standard 28-Pin JEDEC Pinout

■ PowerCap Module Board Only

    – Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal

    – Replaceable Battery (PowerCap)

    – Pin-for-Pin Compatible with DS1248P and DS1251P

■ Underwriters Laboratories (UL) Recognized

产品属性

  • 产品编号:

    DS1244W-120+

  • 制造商:

    Analog Devices Inc./Maxim Integrated

  • 类别:

    集成电路(IC) > 实时时钟

  • 包装:

    卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带

  • 类型:

    Phantom 计时芯片

  • 特性:

    闰年,NVSRAM

  • 存储容量:

    32KB

  • 时间格式:

    HH:MM:SS:hh(12/24 小时)

  • 日期格式:

    YY-MM-DD-dd

  • 接口:

    并联

  • 电压 - 供电:

    2.97V ~ 3.63V

  • 电流 - 计时(最大值):

    7mA @ 3.3V

  • 工作温度:

    0°C ~ 70°C

  • 安装类型:

    通孔

  • 封装/外壳:

    28-DIP 模块(0.600",15.24mm)

  • 供应商器件封装:

    28-EDIP

  • 描述:

    IC RTC PHANTOM PAR 28-DIP

供应商 型号 品牌 批号 封装 库存 备注 价格
DALLAS
1950+
6852
只做原装正品现货!或订货假一赔十!
询价
DALLAS
17+
DIP-32
6200
100%原装正品现货
询价
MAXIM/美信
24+
EDIP-28
30000
原装正品公司现货,假一赔十!
询价
DS
638
原装正品
询价
MAXIM/美信
24+
EDIP-28
6000
全新原装深圳仓库现货有单必成
询价
DALLAS
24+
2700
全新原装自家现货优势!
询价
DALLAS
24+
34-PCM
9600
原装现货,优势供应,支持实单!
询价
DALLAS
24+
DIP
2000
全新原装环保现货
询价
DALLAS
21+
DIP-28
12588
原装正品,自己库存 假一罚十
询价
MAXIM(美信)
2021+
Module
499
询价