74HC251 查看數據表（PDF） - NXP Semiconductors.
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74HC251 Datasheet PDF : 18 Pages
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Nexperia
74HC251; 74HCT251
8-input multiplexer; 3-state
5. Pinning information
5.1 Pinning
+&
+&7
,
,
,
,
<
<
2(
*1'
9&&
,
,
,
,
6
6
6
DDD
Fig 4. Pin configuration SO16
+&
+&7
,
,
,
,
<
<
2(
*1'
9&&
,
,
,
,
6
6
6
DDD
Fig 5. Pin configuration SSOP16 and TSSOP16
5.2 Pin description
Table 2. Pin description
Symbol
I0 to I7
Y
Y
OE
GND
S0, S1, S2
VCC
Pin
4, 3, 2, 1, 15, 14, 13, 12
5
6
7
8
11, 10, 9
16
Description
data inputs
multiplexer output
complementary multiplexer output
output enable input (active LOW)
ground (0 V)
common data select inputs
supply voltage
74HC_HCT251
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 1 February 2016
.
3 of 18
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