74HC251DB 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HC251DB Datasheet PDF : 18 Pages
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Nexperia
74HC251; 74HCT251
8-input multiplexer; 3-state
9,
2(LQSXW
*1'
9&&
RXWSXW
/2:WR2))
2))WR/2:
92/
92+
RXWSXW
+,*+WR2))
2))WR+,*+
*1'
90
W3/=
W3=/
W3+=
90
W3=+
90
RXWSXWV
HQDEOHG
RXWSXWV
GLVDEOHG
RXWSXWV
HQDEOHG
DDH
Fig 8.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Enable and disable times
Table 8. Measurement points
Type
74HC251
74HCT251
Input
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
74HC_HCT251
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 1 February 2016
.
10 of 18
© Nexperia B.V. 2017. All rights reserved
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