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74LV138 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74LV138
Description  3-to-8 line decoder/multiplexer; inverting
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 6 page
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Philips Semiconductors
Product specification
74LV138
3-to-8 line decoder/demultiplexer; inverting
1998 Apr 28
6
AC CHARACTERISTICS
GND = 0V; tr = tf = 2.5ns; CL = 50pF; RL = 500Ω
CONDITION
LIMITS
SYMBOL
PARAMETER
WAVEFORM
CONDITION
–40 to +85
°C
–40 to +125
°C
UNIT
VCC(V)
MIN
TYP1
MAX
MIN
MAX
1.2
75
2.0
26
44
55
tPHL/tPLH
Propagation delay
An to Yn
Figures 1, 3
2.7
19
31
39
ns
An to Yn
3.0 to 3.6
152
26
32
4.5 to 5.5
3
17
22
1.2
75
2.0
26
43
53
tPHL/tPLH
Propagation delay
E3 to Yn
Figures 1, 3
2.7
19
30
38
ns
E3 to Yn
3.0 to 3.6
152
25
31
4.5 to 5.5
19
24
1.2
75
2.0
26
43
53
tPHL/tPLH
Propagation delay
En to Yn
Figures 2, 3
2.7
19
30
38
ns
En to Yn
3.0 to 3.6
152
25
31
4.5 to 5.5
19
24
NOTES:
1. Unless otherwise stated, all typical values are measured at Tamb = 25°C
2. Typical values are measured at VCC = 3.3 V.
3. Typical values are measured at VCC = 5.0 V.
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V;
VM = 0.5 V × VCC at VCC < 2.7 V and ≥ 4.5 V;
VOL and VOH are the typical output voltage drop that occur with the
output load.
SV00528
VM
An, E3
INPUT
VCC
GND
VOL
VOH
Yn OUTPUT
VM
tPLH
tPHL
Figure 1.
Input (An) and enable input (E3) to output (Yn)
propagation delays.
SV00529
VM
E1, E2
INPUT
Yn OUTPUT
VM
tPLH
tPHL
VCC
GND
VOL
VOH
Figure 2.
Enable input (En) to output (Yn) propagation delays.




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