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

54LS168LMQB Datasheet

  • 54LS168LMQB

  • 54LS168 Synchronous Bi-Directional BCD Decade Counter

  • 133.93KB

  • 6頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

54LS168 Synchronous Bi-Directional BCD Decade Counter
June 1989
54LS168 Synchronous Bi-Directional
BCD Decade Counter
General Description
The 54LS168 is a fully synchronous 4-state up down coun-
ter featuring a preset capability for programmable operation
carry lookahead for easy cascading and a U D input to con-
trol the direction of counting It counts in the BCD (8421)
sequence and all state changes whether in counting or par-
allel loading are initiated by the LOW-to-HIGH transition of
the clock
Connection Diagram
Dual-In-Line Package
Logic Symbol
TL F 10207 鈥?1
TL F 10207 鈥?2
Order Number 54LS168DMQB
54LS168FMQB or 54LS168LMQB
See NS Package Number
E20A J16A or W16A
V
CC
e
Pin 16
GND
e
Pin 8
Pin Names
CEP
CET
CP
P0鈥揚(yáng)3
PE
U D
Q0鈥換3
TC
Description
Count Enable Parallel Input (Active LOW)
Count Enable Trickle Input (Active LOW)
Clock Pulse Input (Active Rising Edge)
Parallel Data Inputs
Parallel Enable Input (Active LOW)
Up-Down Count Control Input
Flip-Flop Outputs
Terminal Count Output (Active LOW)
C
1995 National Semiconductor Corporation
TL F 10207
RRD-B30M105 Printed in U S A

54LS168LMQB相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

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

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號,
第一時間獲取資訊。

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)的動力!意見一經(jīng)采納,將有感恩紅包奉上哦!