74lvc139bq NXP Semiconductors, 74lvc139bq Datasheet - Page 11

• Manufacturer Part Number: 74lvc139bq
• Description: Dual 2-to-4 Line Decoder/demultiplexer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2004 Mar 15
Dual 2-to-4 line decoder/demultiplexer
Note
1. The circuit performs better when R
Definitions for test circuit:
R
C
R
1.2 V
2.7 V
3.0 V to 3.6 V
L
L
T
= Load resistor.
= Load capacitance including jig and probe capacitance.
= Termination resistance should be equal to the output impedance Z
V
CC
V
2.7 V
2.7 V
CC
V
I
50 pF
50 pF
50 pF
GENERATOR
C
PULSE
L
Fig.8 Load circuitry for switching times.
L
= 1000 .
500
500
500
R
L
V
(1)
I
open
open
open
R
t
PLH
o
T
11
of the pulse generator.
D.U.T.
V
/t
CC
PHL
GND
GND
GND
t
V
PZH
O
V
EXT
/t
PHZ
C
L
2
2
2
t
V
PZL
mna616
EXT
V
V
V
/t
R
R
CC
CC
CC
L
L
PLZ
Product specification
74LVC139