74HC238D-T NXP Semiconductors, 74HC238D-T Datasheet - Page 10

• Manufacturer Part Number: 74HC238D-T
• Description: Decoder/Demultiplexer Single 3-to-8 16-Pin SO T/R
• Manufacturer: NXP Semiconductors

Specifications of 74HC238D-T

• Package: 16SO
• Logic Function: Decoder/Demultiplexer
• Logic Family: HC
• Number Of Element Outputs: 8
• Number Of Elements Per Chip: 1
• Number Of Input Enables Per Element: 3
• Demultiplexing Capability: 1-of-8
• Fabrication Technology: CMOS
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: -40 to 125 °C

NXP Semiconductors
Table 9.
74HC_HCT238_3
Product data sheet
Type
74HC238
74HCT238
Fig 8. Load circuit for measuring switching times
Test data is given in
Definitions for test circuit:
R
C
R
S1 = Test selection switch
T
L
L
Test data
= Load capacitance including jig and probe capacitance.
= Load resistance.
= Termination resistance should be equal to output impedance Z
Table
Input
V
V
3 V
I
CC
GENERATOR
9.
PULSE
negative
positive
pulse
pulse
0 V
0 V
V
V
I
I
90 %
10 %
t
6 ns
6 ns
r
, t
V I
f
t
t
Rev. 03 — 16 July 2007
r
f
V
V
M
M
R T
10 %
90 %
DUT
V
CC
Load
C
15 pF, 50 pF
15 pF, 50 pF
L
t
t
W
W
V O
o
of the pulse generator.
V
V
74HC238; 74HCT238
M
M
C L
t
t
r
f
R L
S1
3-to-8 line decoder/demultiplexer
001aad983
R
1 k
1 k
V
L
CC
open
© NXP B.V. 2007. All rights reserved.
S1 position
t
open
open
PHL
, t
PLH
10 of 18