74HCT138N Philips Semiconductors, 74HCT138N Datasheet - Page 7

• Manufacturer Part Number: 74HCT138N
• Description: DECODER/DEMULTIPLEXER; PDIP; 3 TO 8 DECODER/DEMULTIPLEXER LOGIC; +5V; -40; +125
• Manufacturer: Philips Semiconductors

Specifications of 74HCT138N

• Capacitance, Input: 3.5 pF (Typ.)
• Circuit Type: High Speed, Low-Power Schottky, Silicon Gate
• Current, Supply: 160 μA
• Function Type: 3-Inputs
• Logic Function: Decoder/Demultiplexer/Inverter
• Logic Type: CMOS/TTL
• Package Type: DIP-16
• Special Features: 3 to 8 Line
• Temperature, Operating, Range: -40 to +125 °C
• Time, Delay, Propagation (high-to-low Level Output): 17 ns (Typ.)
• Time, Delay, Propagation (low-to-high Level Output): 17 ns (Typ.)
• Voltage, Supply: 5 V
• Output Capability: standard
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

Philips Semiconductors
74HC_HCT138_3
Product data sheet
Table 10:
Voltages are referenced to GND (ground = 0 V); C
For test circuit see
[1]
Symbol Parameter
T
t
t
t
t
C
T
t
t
t
t
T
t
t
t
t
PHL
PLH
THL
TLH
PHL
PLH
THL
TLH
PHL
PLH
THL
TLH
amb
amb
amb
PD
,
,
,
,
,
,
C
P
f
f
C
i
o
D
= 25 C
= 40 C to +85 C
= 40 C to +125 C
PD
= input frequency in MHz;
L
= output frequency in MHz;
= output load capacitance in pF;
= C
is used to determine the dynamic power dissipation (P
propagation delay
output transition time see
power dissipation
capacitance
propagation delay
output transition time see
propagation delay
output transition time see
PD
Dynamic characteristics 74HCT138
An to Yn
E3 to Yn
En to Yn
An to Yn
E3 to Yn
En to Yn
An to Yn
E3 to Yn
En to Yn
V
CC
2
Figure
f
i
N + (C
8.
L
Conditions
see
see
see
V
see
see
see
see
see
see
I
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
= GND to (V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
Figure 6
Figure 6
Figure 7
Figure 6
Figure 6
Figure 6
Figure 7
Figure 6
Figure 6
Figure 6
Figure 7
Figure 6
2
= 4.5 V
= 5 V; C
= 4.5 V
= 5 V; C
= 4.5 V
= 5 V; C
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
= 4.5 V
f
o
) where:
and
and
and
3-to-8 line decoder/demultiplexer; inverting
L
L
L
CC
= 15 pF
= 15 pF
= 15 pF
L
74HC138; 74HCT138
7
7
7
= 50 pF unless otherwise specified.
1.5 V)
D
in W).
[1]
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Typ
20
17
18
19
19
19
7
67
-
-
-
-
-
-
-
-
Max
35
-
40
-
40
-
15
-
44
50
50
19
53
60
60
22
Unit
ns
ns
ns
ns
ns
ns
ns
pF
ns
ns
ns
ns
ns
ns
ns
ns
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