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74LVC138AD Datasheet Preview

74LVC138AD Datasheet

3-to-8 line decoder/demultiplexer

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74LVC138A
3-to-8 line decoder/demultiplexer; inverting
Rev. 7 — 28 August 2020
Product data sheet
1. General description
The 74LVC138A decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually
exclusive outputs (Y0 to Y7). The 74LVC138A features three enable inputs (E1, E2 and E3). Every
output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function
allows easy parallel expansion of the 74LVC138A to a 1-of-32 (5 to 32 lines) decoder with just four
74LVC138A ICs and one inverter. The 74LVC138A can be used as an eight output demultiplexer
by using one of the active LOW enable inputs as the data input and the remaining enable inputs as
strobes. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these
devices as translators in mixed 3.3 V and 5 V environments.
Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.
2. Features and benefits
Overvoltage tolerant inputs to 5.5 V
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Mutually exclusive outputs
Output drive capability 50 Ω transmission lines at 125 °C
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-B exceeds 200 V
CDM JESD22-C101E exceeds 1000 V
Specified from -40 °C to +85 °C and from -40 °C to +125 °C




nexperia

74LVC138AD Datasheet Preview

74LVC138AD Datasheet

3-to-8 line decoder/demultiplexer

No Preview Available !

Nexperia
74LVC138A
3-to-8 line decoder/demultiplexer; inverting
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range
74LVC138AD -40 °C to +125 °C
74LVC138ADB -40 °C to +125 °C
74LVC138APW -40 °C to +125 °C
74LVC138ABQ -40 °C to +125 °C
Name
Description
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SSOP16
plastic shrink small outline package; 16 leads;
body width 5.3 mm
TSSOP16 plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
DHVQFN16 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
Version
SOT109-1
SOT338-1
SOT403-1
SOT763-1
4. Functional diagram
1
2
3
4 E1
5 E2
6 E3
Fig. 1. Logic symbol
A0
Y0 15
A1
Y1 14
A2
Y2
13
Y3 12
Y4
11
Y5 10
Y6
9
Y7
7
mna370
DX
0
15
1
0
1 14
2
G
0
7
2
13
3
2
3 12
4 11
4
&
5 10
5
6
9
6
7
7
(a)
Fig. 2. IEC logic symbol
Fig. 3. Functional diagram
1 A0
2 A1
3 A2
3-to-8
DECODER
ENABLE
EXITING
4 E1
5 E2
6 E3
Y0 15
Y1 14
Y2 13
Y3 12
Y4 11
Y5 10
Y6 9
Y7 7
mna372
X/Y
0
15
1
1
1 14
2
2
2 13
3
4
3 12
4 11
4
&
5 10
5
6
9
6
EN
7
7
mna371
(b)
74LVC138A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 28 August 2020
© Nexperia B.V. 2020. All rights reserved
2 / 15


Part Number 74LVC138AD
Description 3-to-8 line decoder/demultiplexer
Maker nexperia
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74LVC138AD Datasheet PDF






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