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PDF 74HCT154N Data sheet ( Hoja de datos )
| Número de pieza | 74HCT154N | |
| Descripción | 4-to-16 line decoder/demultiplexer | |
| Fabricantes | NXP Semiconductors | |
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74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
Rev. 06 — 12 February 2007
Product data sheet
1. General description
The 74HC154; 74HCT154 is a high-speed Si-gate CMOS device and is pin compatible
with Low-power Schottky TTL (LSTTL).
The 74HC154; 74HCT154 decoders accept four active HIGH binary address inputs and
provide 16 mutually-exclusive active LOW outputs. The two-input enable gate can be used
to strobe the decoder to eliminate the normal decoding ‘glitches’ on the outputs, or can be
used for the expansion of the decoder.
The enable gate has two ANDed inputs which must be LOW to enable the outputs.
The 74HC154; 74HCT154 can be used as a 1-to-16 demultiplexer by using one of the
enable inputs as the multiplexed data input.
When the other enable input is LOW, the addressed output will follow the state of the
applied data.
2. Features
I 16-line demultiplexing capability
I Decodes 4 binary-coded inputs into 16 mutually-exclusive outputs
I Complies with JEDEC standard no. 7A
I Specified from −40 °C to +85 °C and −40 °C to +125 °C
I ESD protection:
N HBM EIA/JESD22-A114D exceeds 2000 V
N MM EIA/JESD22-A115-A exceeds 200 V
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC154
74HC154N −40 °C to +125 °C DIP24
74HC154D −40 °C to +125 °C SO24
74HC154DB −40 °C to +125 °C SSOP24
74HC154PW −40 °C to +125 °C TSSOP24
Description
Version
plastic dual in-line package; 24 leads (600 mil)
SOT101-1
plastic small outline package; 24 leads; body width
7.5 mm
SOT137-1
plastic shrink small outline package; 24 leads; body width SOT340-1
5.3 mm
plastic thin shrink small outline package; 24 leads; body SOT355-1
width 4.4 mm
1 page  
NXP Semiconductors
74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
Table 2.
Symbol
Y13
Y14
Y15
E0
E1
A3
A2
A1
A0
VCC
Pin description …continued
Pin Description
15 data output (active LOW)
16 data output (active LOW)
17 data output (active LOW)
18 enable input (active LOW)
19 enable input (active LOW)
20 address input
21 address input
22 address input
23 address input
24 supply voltage
6. Functional description
Table 3. Function table[1]
Input
Output
E0 E1 A0 A1 A2 A3 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15
HHXXXXHHHHHH H H H H H H H H H H
HL XXXXHHHHHH H H H H H H H H H H
L HXXXXHHHHHH H H H H H H H H H H
L L L L L L L HHHHH H H H H H H H H H H
HL L L HL HHHH H H H H H H H H H H
L HL L HHL HHH H H H H H H H H H H
HHL L HHHL HH H H H H H H H H H H
L L HL HHHHL H H H H H H H H H H H
HL HL HHHHHL H H H H H H H H H H
L HHL HHHHHH L H H H H H H H H H
HHHL HHHHHH H L H H H H H H H H
L L L HHHHHHH H H L H H H H H H H
HL L HHHHHHH H H H L H H H H H H
L HL HHHHHHH H H H H L H H H H H
HHL HHHHHHH H H H H H L H H H H
L L HHHHHHHH H H H H H H L H H H
HL HHHHHHHH H H H H H H H L H H
L HHHHHHHHH H H H H H H H H L H
HHHHHHHHHH H H H H H H H H H L
[1] H = HIGH voltage level
L = LOW voltage level
X = don’t care.
74HC_HCT154_6
Product data sheet
Rev. 06 — 12 February 2007
© NXP B.V. 2007. All rights reserved.
5 of 21
5 Page 
NXP Semiconductors
11. Waveforms
74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
VI
An input
GND
VOH
Yn output
VOL
VM
t PHL
90 %
VM
10 %
t THL
VM
t PLH
VM
10 %
90 %
t TLH
001aab073
VI
En input
GND
VOH
Yn output
VOL
VM
tPHL
90 %
VM
10 %
t THL
VM
tPLH
VM
10 %
90 %
t TLH
001aab074
Measurement points are given in Table 9.
Fig 7. Propagation delay address input (An) to output
(Yn) and transition time output (Yn)
Measurement points are given in Table 9.
Fig 8. Propagation delay enable input (En) to output
(Yn) and transition time output (Yn)
Table 9. Measurement points
Type
74HC154
74HCT154
Input
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
74HC_HCT154_6
Product data sheet
Rev. 06 — 12 February 2007
© NXP B.V. 2007. All rights reserved.
11 of 21
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| PDF Descargar | [ Datasheet 74HCT154N.PDF ] | |
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