74AHC_AHCT139_Q100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 1 — 5 June 2013 9 of 16
NXP Semiconductors 74AHC139-Q100; 74AHCT139-Q100
Dual 2-to-4 line decoder/demultiplexer
11. Waveforms
Measurement points are given in Table 8.
V
OL
and V
OH
are typical voltage output levels that occur with the output load.
Fig 5. Address input to output propagation delays
mna782
t
PHL
t
PLH
V
M
V
M
nAn input
nYn output
GND
V
I
V
OH
V
OL
Measurement points are given in Table 8.
V
OL
and V
OH
are typical voltage output levels that occur with the output load.
Fig 6. Enable input to output propagation delays
mna783
nE input
nY
n
output
t
PHL
t
PLH
GND
V
I
V
M
V
M
V
OH
V
OL
Table 8. Measurement points
Type Input Output
V
M
V
M
74AHC139-Q100 0.5 V
CC
0.5 V
CC
74AHCT139-Q100 1.5 V 0.5 V
CC