參數(shù)資料
型號(hào): DM74ALS125
廠商: Fairchild Semiconductor Corporation
英文描述: Quad 3-STATE Buffer
中文描述: 四三態(tài)緩沖器
文件頁數(shù): 1/5頁
文件大?。?/td> 51K
代理商: DM74ALS125
2000 Fairchild Semiconductor Corporation
DS010620
www.fairchildsemi.com
November 1989
Revised February 2000
D
DM74ALS125
Quad 3-STATE Buffer
General Description
This device contains four independent gates each of which
performs a non-inverting buffer function. The outputs have
the 3-STATE feature. The 3-STATE circuitry contains a fea-
ture that maintains the buffer outputs in 3-STATE (high
impedance state) during power supply ramp-up or ramp-
down. This eliminates bus glitching problems that arise
during power-up and power-down. To minimize the possi-
bility that two outputs will attempt to take a common bus to
opposite logic levels, the disable time is shorter than the
enable time of the outputs.
Features
I
Advanced low power oxide-isolated ion-implanted
Schottky TTL process
I
Functional and pin compatible with the 74LS counterpart
I
Switching response specified into 500
and 50 pF load
I
Switching response specifications guaranteed over full
temperature and V
CC
supply range
I
PNP input design reduces input loading
I
Low level drive current: 74ALS
=
24 mA
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Functional Table
Y
=
A
H
=
HIGH Logic Level
L
=
LOW Logic Level
X
=
Either LOW or HIGH Logic Level
Hi-Z
=
3-STATE (Outputs are disabled)
Logic Diagram
Order Number
DM74ALS125M
DM74ALS125N
Package Number
M14A
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Input
Output
Y
L
H
Hi-Z
A
L
H
X
C
L
L
H
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DM74ALS125M 功能描述:緩沖器和線路驅(qū)動(dòng)器 Quad 3-STATE Buffer RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74ALS125MX 功能描述:緩沖器和線路驅(qū)動(dòng)器 Quad 3-STATE Buffer RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74ALS125N 功能描述:緩沖器和線路驅(qū)動(dòng)器 Quad 3-STATE Buffer RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74ALS125N 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74ALS TTL 74ALS125 DIP14 5V
DM74ALS125N_Q 功能描述:緩沖器和線路驅(qū)動(dòng)器 Quad 3-STATE Buffer RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel