74HCT7540D View Datasheet(PDF) - Nexperia B.V. All rights reserved
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74HCT7540D
Nexperia B.V. All rights reserved
74HCT7540D Datasheet PDF : 15 Pages
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Nexperia
11. Waveforms
74HC7540; 74HCT7540
Octal Schmitt trigger buffer/line driver; 3-state; inverting
9,
$QLQSXW
*1'
92+
<QRXWSXW
92/
90
W3+/
90
90
90
W3/+
W7+/
W7/+
DDD
Fig 5.
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
9,
2(QLQSXW
*1'
<QRXWSXW
/2:WR2))
2))WR/2:
9&&
92/
<QRXWSXW
+,*+WR2))
2))WR+,*+
92+
*1'
90
W3/=
W3+=
9;
9<
RXWSXWV
HQDEOHG
W3=/
90
W3=+
90
RXWSXWV
GLVDEOHG
RXWSXWV
HQDEOHG
DDD
Fig 6.
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
Table 8. Measurement points
Type
Input
74HC7540
74HCT7540
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
VX
0.1VCC
0.1VCC
VY
0.9VCC
0.9VCC
74HC_HCT7540
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 26 May 2016
© Nexperia B.V. 2017. All rights reserved
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