74lvc257adb NXP Semiconductors, 74lvc257adb Datasheet - Page 11

• Manufacturer Part Number: 74lvc257adb
• Description: Quad 2-input Multiplexer With 5 Volt Tolerant Inputs/outputs 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2004 Jan 23
handbook, full pagewidth
Quad 2-input multiplexer with 5 V
tolerant inputs/outputs; 3-state
Note
1.
Definitions for test circuits:
R
C
R
1.2 V
2.7 V
3.0 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
The circuit performs better when R
V
CC
V
2.7 V
2.7 V
CC
V
I
L
= 1000 .
50 pF
50 pF
50 pF
GENERATOR
PULSE
C
Fig.9 Load circuitry for switching times.
L
500
500
500
V I
R
L
(1)
R T
o
11
of the pulse generator.
open
open
open
t
D.U.T.
PLH
V CC
/t
PHL
V O
GND
GND
GND
t
PZH
V
EXT
/t
C L
PHZ
V EXT
MNA616
2
2
2
t
PZL
R L
R L
V
V
V
/t
CC
CC
CC
PLZ
Product specification
74LVC257A