音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

MM58274CJ Datasheet

  • MM58274CJ

  • Microprocessor Compatible Real Time Clock

  • 230.11KB

  • 16頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

MM58274C Microprocessor Compatible Real Time Clock
April 1991
MM58274C
Microprocessor Compatible Real Time Clock
General Description
The MM58274C is fabricated using low threshold metal gate
CMOS technology and is designed to operate in bus orient-
ed microprocessor systems where a real time clock and cal-
endar function are required The on-chip 32 768 kHz crystal
controlled oscillator will maintain timekeeping down to 2 2V
to allow low power standby battery operation This device is
pin compatible with the MM58174A but continues timekeep-
ing up to tens of years The MM58274C is a direct replace-
ment for the MM58274 offering improved Bus access cycle
times
Features
Y
Y
Y
Y
Y
Y
Applications
Y
Y
Y
Y
Y
Y
Y
Y
Y
Point of sale terminals
Teller terminals
Word processors
Data logging
Industrial process control
Same pin-out as MM58174A
MM58274B
and
MM58274
Timekeeping from tenths of seconds to tens of years in
independently accessible registers
Leap year register
Hours counter programmable for 12 or 24-hour
operation
Buffered crystal frequency output in test mode for easy
oscillator setting
Data-changed flag allows simple testing for time
rollover
Independent interrupting time with open drain output
Fully TTL compatible
Low power standby operation (10
mA
at 2 2V)
Low cost 16-pin DIP and 20-pin PCC
Block Diagram
TL F 11219 鈥?1
FIGURE 1
TRI-STATE is a registered trademark of National Semiconductor Corp
Microbus
TM
is a trademark of National Semiconductor Corp
C
1995 National Semiconductor Corporation
TL F 11219
RRD-B30M105 Printed in U S A

MM58274CJ相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！