DS1644P中文资料PDF规格书
DS1644P规格书详情
DESCRIPTION
The DS1644 is a 32k x 8 nonvolatile static RAM with a full function real time clock, which are both accessible in a byte-wide format. The nonvolatile timekeeping RAM is functionally equivalent to any JEDEC standard 32k x 8 SRAM. The device can also be easily substituted for ROM, EPROM and EEPROM, providing read/write nonvolatility and the addition of the real time clock function.
FEATURES
■ Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lithium Energy Source
■ Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations.
■ Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
■ BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Leap Year Compensation Valid Up to 2100
■ Power-Fail Write Protection Allows for ±10 VCC Power Supply Tolerance
■ DS1644 Only (DIP Module) Upward Compatible with the DS1643 Timekeeping RAM to Achieve Higher RAM Density Standard JEDEC Bytewide 32k x 8 Static RAM Pinout
■ DS1644P Only (PowerCap® Module Board) Surface Mountable Package for Direct Connection to PowerCap Containing Battery and crystal Replaceable Battery (PowerCap) Power-Fail Output Pin-for-Pin Compatible with Other Densities of DS164XP Timekeeping RAM Underwriters Laboratory (UL) Recognized
产品属性
- 产品编号:
DS1644P-120+
- 制造商:
Analog Devices Inc./Maxim Integrated
- 类别:
集成电路(IC) > 实时时钟
- 包装:
管件
- 类型:
时钟/日历
- 特性:
闰年,NVSRAM
- 存储容量:
32KB
- 时间格式:
HH:MM:SS(24 小时)
- 日期格式:
YY-MM-DD-dd
- 接口:
并联
- 电压 - 供电:
4.5V ~ 5.5V
- 电压 - 供电,电池:
3V
- 电流 - 计时(最大值):
4mA @ 4.5V ~ 5.5V
- 工作温度:
0°C ~ 70°C
- 安装类型:
表面贴装型
- 封装/外壳:
34-PowerCap™ 模块
- 供应商器件封装:
34-PowerCap 模块
- 描述:
IC RTC CLK/CALENDAR PAR 34-PCM
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Maxim/美信 |
2021/2022+ |
NA |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
MAX |
20+ |
34-PCM |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
DALLAS |
20+/21+ |
PLCC |
6545 |
全新原装正品 |
询价 | ||
DALLAS |
PCB |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
MAXIM |
23+ |
PWRCP |
8888 |
专做原装正品,假一罚百! |
询价 | ||
DALLAS |
2020+ |
原厂封装 |
350000 |
100%进口原装正品公司现货库存 |
询价 | ||
DALLAS |
21+ROHS |
module-34 |
10000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | ||
DALLAS |
1844+ |
SOP |
6528 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
DALLAS |
2020+ |
34-PCM |
4 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||
MAXIM |
23+ |
PWRCP |
2508 |
原厂原装正品 |
询价 |