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| 74HC_HCT253_15 Datasheet, PDF (9/17 Pages) NXP Semiconductors – Dual 4-input multiplexer; 3-state | |||
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NXP Semiconductors
12. Waveforms
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
9,
6Q,QOQLQSXW
*1'
92+
Q<RXWSXW
92/
90
90
W3+/
90
W7+/
90
W3/+
W7/+
DDO
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Propagation delays input (Sn, 1In, 2In) to output (nY) and output (nY) transition times
Q2(LQSXW
9,
*1'
9&&
RXWSXW
/2:WR2))
2))WR/2:
92/
92+
RXWSXW
+,*+WR2))
2))WR+,*+
*1'
WU
90
W3/=
W3+=
RXWSXWV
HQDEOHG
WI
W3=/
90
W3=+
RXWSXWV
GLVDEOHG
90
RXWSXWV
HQDEOHG
DDO
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 output enable and disable times
Table 8. Measurement points
Type
74HC253
74HCT253
Input
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
74HC_HCT253
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 â 21 January 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
9 of 17
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