74HCT540N データシートの表示（PDF） - NXP Semiconductors.
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74HCT540N Datasheet PDF : 18 Pages
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NXP Semiconductors
11. Waveforms
74HC540; 74HCT540
Octal buffer/line driver; 3-state; inverting
$Q LQSXW
90
<Q RXWSXW
W3+/
90
W3/+
W7+/
W7/+
DDD
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Input to output propagation delays
2(Q LQSXW
90
W3/=
W3=/
RXWSXW
/2:WR2))
2))WR/2:
RXWSXW
+,*+WR2))
2))WR+,*+
W3+=
9;
9<
90
W3=+
90
RXWSXWV
HQDEOHG
RXWSXWV
GLVDEOHG
Fig 7.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
3-state enable and disable times
RXWSXWV
HQDEOHG
DDD
Table 8. Measurement points
Type
Input
74HC540
74HCT540
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
VX
0.1VCC
0.1VCC
VY
0.9VCC
0.9VCC
74HC_HCT540
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 21 January 2013
© NXP B.V. 2013. All rights reserved.
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