74HC138D NXP Semiconductors, 74HC138D Datasheet - Page 12

• Manufacturer Part Number: 74HC138D
• Description: Decoder/Demultiplexer Single 3-to-8 16-Pin SO Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HC138D

• 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

Philips Semiconductors
74HC_HCT138_3
Product data sheet
Table 9:
Voltages are referenced to GND (ground = 0 V); C
For test circuit see
[1]
Symbol Parameter
t
t
T
t
t
t
t
THL
TLH
PHL
PLH
THL
TLH
amb
,
,
,
C
P
f
f
C
V
N = number of inputs switching;
i
o
(C
D
CC
= 40 C to +125 C
PD
= input frequency in MHz;
L
= output frequency in MHz;
= output load capacitance in pF;
= C
L
is used to determine the dynamic power dissipation (P
= supply voltage in V;
output transition
time
propagation delay
output transition
time
PD
V
Dynamic characteristics 74HC138
CC
An to Yn
E3 to Yn
En to Yn
2
V
CC
f
o
2
) = sum of the outputs.
Figure
f
i
Rev. 03 — 23 December 2005
N + (C
8.
L
Conditions
see
see
see
see
see
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
Figure 6
Figure 6
Figure 6
Figure 7
Figure 6
2
= 2.0 V
= 4.5 V
= 6.0 V
= 2.0 V
= 4.5 V
= 6.0 V
= 2.0 V
= 4.5 V
= 6.0 V
= 2.0 V
= 4.5 V
= 6.0 V
= 2.0 V
= 4.5 V
= 6.0 V
f
o
) where:
and
and
3-to-8 line decoder/demultiplexer; inverting
…continued
7
7
L
74HC138; 74HCT138
= 50 pF unless otherwise specified.
D
in W).
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
95
19
16
225
45
38
225
45
38
225
45
38
110
22
19
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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