74HCT238D NXP Semiconductors, 74HCT238D Datasheet - Page 10

• Manufacturer Part Number: 74HCT238D
• Description: IC, LOGIC, 74HCT, DECODER, SO16
• Manufacturer: NXP Semiconductors

Specifications of 74HCT238D

• Logic Type: Decoder / Demultiplexer
• No. Of Outputs: 8
• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC (18-Jun-2010)
• Package / Case: 16-SOIC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
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