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DS1554W-150中文资料Dallas数据手册PDF规格书
DS1554W-150规格书详情
DESCRIPTION
The DS1554 is a full function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with a RTC alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 non-volatile static RAM. User access to all registers within the DS1554 is accomplished with a bytewide interface as shown in Figure 1. The RTC Registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour BCD format. Corrections for day of month and leap year are made automatically.
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 16 top RAM locations
■ Century byte register; i.e., Y2K complaint
■ Totally nonvolatile with over 10 years of operation in the absence of power
■ Precision power-on reset
■ 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
■ Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
产品属性
- 型号:
DS1554W-150
- 制造商:
DALLAS
- 制造商全称:
Dallas Semiconductor
- 功能描述:
256K NV Y2KC Timekeeping RAM
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
10+ |
MODULE |
31 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
DS |
23+ |
DIP |
45907 |
##公司主营品牌长期供应100%原装现货可含税提供技术 |
询价 | ||
DALLAS |
22+ |
N/A |
354000 |
询价 | |||
DALLAS |
17+ |
PCM |
2000 |
全新原装环保 |
询价 | ||
DALLAS |
21+ |
DIP32 |
6 |
原装现货假一赔十 |
询价 | ||
DALLAS |
22+ |
NA |
7500 |
全新原装品牌专营 |
询价 | ||
MAXIM/美信 |
1948+ |
MODULE |
6852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
DALLAS |
22+ |
18 |
原装现货假一赔十 |
询价 | |||
2023+ |
3000 |
进口原装现货 |
询价 | ||||
DALLAS |
18+ |
34-PCM |
29232 |
全新原装现货,可出样品,可开增值税发票 |
询价 |