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74HC_HCT154_15 Datasheet, PDF (11/21 Pages) NXP Semiconductors – 4-to-16 line decoder/demultiplexer
NXP Semiconductors
11. Waveforms
74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
VI
An input
GND
VOH
Yn output
VOL
VM
t PHL
90 %
VM
10 %
t THL
VM
t PLH
VM
10 %
90 %
t TLH
001aab073
VI
En input
GND
VOH
Yn output
VOL
VM
tPHL
90 %
VM
10 %
t THL
VM
tPLH
VM
10 %
90 %
t TLH
001aab074
Measurement points are given in Table 9.
Fig 7. Propagation delay address input (An) to output
(Yn) and transition time output (Yn)
Measurement points are given in Table 9.
Fig 8. Propagation delay enable input (En) to output
(Yn) and transition time output (Yn)
Table 9. Measurement points
Type
74HC154
74HCT154
Input
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
74HC_HCT154_6
Product data sheet
Rev. 06 — 12 February 2007
© NXP B.V. 2007. All rights reserved.
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