74HC137D NXP Semiconductors, 74HC137D Datasheet - Page 12

• Manufacturer Part Number: 74HC137D
• Description: Latch/Decoder/Demultiplexer Single 3-to-8 16-Pin SO Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HC137D

• Package: 16SO
• Logic Function: Latch/Decoder/Demultiplexer
• Logic Family: HC
• Number Of Element Inputs: 3
• Number Of Element Outputs: 8
• Number Of Input Enables Per Element: 1
• Number Of Output Enables Per Element: 2
• Demultiplexing Capability: 1-of-8
• Fabrication Technology: CMOS
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: -40 to 125 °C

Philips Semiconductors
12. Waveforms
9397 750 13804
Product data sheet
Fig 6. Waveforms showing the address input (An) and enable input (E2) to output (Yn)
Fig 7. Waveforms showing the enable input (E1, LE) to output (Yn) propagation delays
Fig 8. Waveforms showing the data set-up, hold times for An input to LE input and the
V
propagation delays and the output transition times
V
and the output transition times
The shaded areas indicate when the input is permitted to change for predictable output
performance.
V
latch enable pulse width
M
M
M
= 0.5
= 0.5
= 0.5
V
V
V
I
I
I
.
.
.
3-to-8 line decoder, demultiplexer with address latches; inverting
An, E2 input
Yn output
E1, LE
input
Yn output
An input
LE input
Rev. 03 — 11 November 2004
transparant
V
V
M
M
V
t
t
t
THL
t
THL
M
PHL
PHL
t
su
V
V
M
M
V
M
latched
t
h
transparant
t
W
t
t
PLH
PLH
t
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
su
001aab883
001aab884
001aab875
latched
t
t
TLH
TLH
t
h
74HC137
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