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DS12CR887-33+

报警实时时钟芯片, 星期/日/月/年 时:分:秒, 多路复用, 2.97V至3.63V, EDIP-24

MAXIM INTEGRATED PRODUCTS DS12CR887-33+
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制造商产品编号:
DS12CR887-33+
库存编号
2515427
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产品概述

The DS12CR887-33+ is a RTC with constant voltage trickle charger in 24 pin EDIP package. It is a functional drop-in replacement for the DS12885 real time clock (RTC). The device provides an RTC/calendar, one time of day alarm, three maskable interrupts with a common interrupt output, a programmable square wave and 114bytes of battery backed static RAM. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. It also operates in either 24hour or 12hour format with an AM/PM indicator. A precision temperature compensated circuit monitors the status of VCC. If a primary power failure is detected, the device automatically switches to a backup supply. The VBACKUP pin supports a rechargeable battery or a super cap and includes an integrated, always enabled trickle charger.
  • Supply voltage range is 2.97V to 3.63V
  • Operating temperature range from -40°C to 85°C
  • Trickle charge capability for a rechargeable battery or super cap
  • RTC counts seconds, minutes, hours, day, date, month and year
  • Leap year compensation to 2100
  • Time of day alarm is once per second to once per day
  • Periodic rates from 122µs to 500ms
  • End of clock update cycle flag
  • 14bytes of clock and control registers
  • 114bytes of general purpose battery-backed NV RAM with clear input
  • Embedded Systems; Network Hubs, Switches, Routers; Security Systems; Utility Meters

应用

时钟与计时, 通信与网络

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

产品信息

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:
星期;日;月;年

:
时:分:秒

:
实时时钟闹钟

:
2.97V

:
3.63V

:
EDIP

:
24引脚

:
复用

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 -无限制
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技术文档 (1)

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20 UK 有库存,可在 4-5 个工作日内发货

CNY88.72 ( CNY100.25  含增值税)

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