DS12885TN中文资料Dallas数据手册PDF规格书
DS12885TN规格书详情
DESCRIPTION
The DS12885 real-time clock plus RAM is designed to be a direct replacement for the DS1285. The DS12885 is identical in form, fit, and function to the DS1285, and has an additional 64 bytes of general purpose RAM. Access to this additional RAM space is determined by the logic level presented on AD6 during the address portion of an access cycle.
FEATURES
■ Drop-in replacement for IBM AT computer clock/calendar
■ Pin configuration closely matches MC146818B and DS1285
■ Counts seconds, minutes, hours, days, day of the week, date, month, and year with leapyear compensation valid up to 2100
■ Binary or BCD representation of time, calendar, and alarm
■ 12-hour or 24-hour clock with AM and PM in 12-hour mode
■ Daylight Savings Time option
■ Selectable between Motorola and Intel bus timing
■ Multiplex bus for pin efficiency
■ Interfaced with software as 128 RAM locations
■ 14 bytes of clock and control registers
■ 114 bytes of general purpose RAM
■ Programmable square-wave output signal bus-compatible interrupt signals (IRQ )
■ Three interrupts are separately softwaremaskable and testable
■ Time-of-day alarm once/second to once/day
■ Periodic rates from 122ms to 500ms
■ End-of-clock update cycle
■ Optional 28-pin PLCC surface mount package or 32-pin TQFP
■ Optional industrial temperature range available
■ Underwriters Laboratory (UL) recognized
产品属性
- 产品编号:
DS12885TN
- 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:
警报器,夏令时,闰年,NVSRAM,方波输出
- 存储容量:
114B
- 时间格式:
HH:MM:SS(12/24 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:
2.5V ~ 4V
- 电流 - 计时(最大值):
15mA @ 4.5V ~ 5.5V
- 工作温度:
-40°C ~ 85°C
- 安装类型:
表面贴装型
- 封装/外壳:
32-TQFP
- 供应商器件封装:
32-TQFP(7x7)
- 描述:
IC RTC CLK/CALENDAR PAR 32-TQFP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Maxim Integrated |
2022+ |
32-TQFP(7x7) |
38550 |
全新原装 支持表配单 中国著名电子元器件独立分销 |
询价 | ||
Analog Devices Inc./Maxim Inte |
24+ |
32-TQFP |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 | ||
DALLAS |
23+ |
TQFP |
65480 |
询价 | |||
DALLAS |
23+ |
DIP-24 |
8560 |
受权代理!全新原装现货特价热卖! |
询价 | ||
Maxim Integrated |
21+ |
32-TQFP(7x7) |
35200 |
一级代理/放心采购 |
询价 | ||
DS |
2022 |
DIP |
2058 |
原厂原装正品,价格超越代理 |
询价 | ||
DALLAS |
23+ |
DIP18 |
556 |
询价 | |||
DS |
DIP |
256 |
正品原装--自家现货-实单可谈 |
询价 | |||
DALLAS |
05+ |
DIP-20/模块 |
23 |
全新原装 绝对有货 |
询价 | ||
MAXIM |
23+ |
TQFP |
8888 |
专做原装正品,假一罚百! |
询价 |