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DS12885QN/R中文資料美信數(shù)據(jù)手冊PDF規(guī)格書
DS12885QN/R規(guī)格書詳情
General Description
The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of battery backed static RAM (113 bytes in the DS12C887 and DS12C887A). The DS12887 integrates a quartz crystal and lithium energy source into a 24-pin encapsulated DIP package.
Features
? Drop-In Replacement for IBM AT Computer Clock/Calendar
? RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Through 2099
? Binary or BCD Time Representation
? 12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode
? Daylight Saving Time Option
? Selectable Intel or Motorola Bus Timing
? Interfaced with Software as 128 RAM Locations
? 14 Bytes of Clock and Control Registers
? 114 Bytes of General-Purpose, Battery-Backed RAM (113 Bytes in the DS12C887 and DS12C887A)
? RAM Clear Function (DS12885, DS12887A, and DS12C887A)
? Interrupt Output with Three Independently Maskable Interrupt Flags
? Time-of-Day Alarm Once Per Second to Once Per Day
? Periodic Rates from 122μs to 500ms
? End-of-Clock Update Cycle Flag
? Programmable Square-Wave Output
? Automatic Power-Fail Detect and Switch Circuitry
? Optional 28-Pin PLCC Surface Mount Package or 32-Pin TQFP (DS12885)
? Optional Encapsulated DIP (EDIP) Package with Integrated Crystal and Battery (DS12887, DS12887A, DS12C887, DS12C887A)
? Optional Industrial Temperature Range Available
? Underwriters Laboratory (UL) Recognized
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
MAXIM/美信 |
2023+ |
28-PLCC |
6000 |
全新原裝深圳倉庫現(xiàn)貨有單必成 |
詢價 | ||
DALLAS |
19+ |
28-PLCC |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠; |
詢價 | ||
MAXIM(美信) |
2447 |
28-PLCC |
315000 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
詢價 | ||
Maxim |
21+ |
25000 |
原廠原包 深圳現(xiàn)貨 主打品牌 假一賠百 可開票! |
詢價 | |||
MAXIM/美信 |
2022+ |
28-PLCC |
7600 |
原廠原裝,假一罰十 |
詢價 | ||
Maxim |
22+ |
28PLCC (11.51x11.51) |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價 | ||
Maxim |
21+ |
28PLCC (11.51x11.51) |
13880 |
公司只售原裝,支持實單 |
詢價 | ||
MAX |
20+ |
28-PLCC |
65790 |
原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
Maxim Integrated |
24+ |
28-PLCC(11.51x11.51) |
35200 |
一級代理/放心采購 |
詢價 | ||
MAXIM/美信 |
24+ |
28-PLCC |
7188 |
秉承只做原裝 終端我們可以提供技術支持 |
詢價 |