參數(shù)資料
型號: 74HC251
廠商: NXP Semiconductors N.V.
英文描述: 8-input multiplexer; 3-state
中文描述: 8輸入多路復用器,三態(tài)
文件頁數(shù): 7/7頁
文件大小: 53K
代理商: 74HC251
December 1990
7
Philips Semiconductors
Product specification
8-input multiplexer; 3-state
74HC/HCT251
AC WAVEFORMS
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
Fig.6
Waveforms showing the multiplexer input (I
n
) and select input (S
n
) to output (Y) propagation delays and
the output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3V; V
I
= GND to 3 V.
Fig.7
Waveforms showing the multiplexer input (I
n
) and select input (S
n
) to output (Y) propagation delays and
the output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3V; V
I
= GND to 3 V.
Fig.8 Waveforms showing the 3-state enable and disable times.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3V; V
I
= GND to 3 V.
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