Datasheet

74LV138_3 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 03 — 15 November 2007 9 of 17
NXP Semiconductors
74LV138
3-to-8 line decoder/demultiplexer; inverting
Test data is given in Table 9.
Definitions test circuit:
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator.
R
L
= Load resistance.
C
L
= Load capacitance including jig and probe capacitance.
Fig 8. Load circuit for switching times
V
CC
V
I
V
O
001aaa663
D.U.T.
C
L
50 pF
R
T
R
L
1 kΩ
PULSE
GENERATOR
Table 9. Test data
Supply voltage
V
CC
Input
V
I
t
r
, t
f
< 2.7 V V
CC
≤ 2.5 ns
2.7 V to 3.6 V 2.7 V ≤ 2.5 ns
≥ 4.5 V V
CC
≤ 2.5 ns