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

54LS245LMQB Datasheet

  • 54LS245LMQB

  • TRI-STATE Octal Bus Transceiver

  • 142.80KB

  • 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

54LS245 DM54LS245 DM74LS245 TRI-STATE Octal Bus Transceiver
June 1989
54LS245 DM54LS245 DM74LS245
TRI-STATE Octal Bus Transceiver
General Description
These octal bus transceivers are designed for asynchro-
nous two-way communication between data buses The
control function implementation minimizes external timing
requirements
The device allows data transmission from the A bus to the B
bus or from the B bus to the A bus depending upon the logic
level at the direction control (DIR) input The enable input
(G) can be used to disable the device so that the buses are
effectively isolated
Y
Y
Y
Y
Y
Y
Features
Y
Y
Y
Bi-Directional bus transceiver in a high-density 20-pin
package
TRI-STATE outputs drive bus lines directly
PNP inputs reduce DC loading on bus lines
Hysteresis at bus inputs improve noise margins
Typical propagation delay times port-to-port 8 ns
Typical enable disable times 17 ns
I
OL
(sink current)
54LS
12 mA
74LS
24 mA
I
OH
(source current)
b
12 mA
54LS
b
15 mA
74LS
Alternate Military Aerospace device (54LS245) is avail-
able Contact a National Semiconductor Sales Office
Distributor for specifications
Connection Diagram
Dual-In-Line Package
TL F 6413 鈥?1
Order Number 54LS245DMQB 54LS245FMQB 54LS245LMQB
DM54LS245J DM54LS245W DM74LS245WM or DM74LS245N
See NS Package Number E20A J20A M20B N20A or W20A
Function Table
Enable
G
L
L
H
Direction
Control
DIR
L
H
X
Operation
B data to A bus
A data to B bus
Isolation
H
e
High Level L
e
Low Level X
e
Irrelevant
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 6413
RRD-B30M105 Printed in U S A

54LS245LMQB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！