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74HC137_1 Datasheet, PDF (7/8 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer with address latches; inverting
Philips Semiconductors
3-to-8 line decoder/demultiplexer with
address latches; inverting
AC WAVEFORMS
Product specification
74HC/HCT137
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.6 Waveforms showing the address input (An) and
enable inputs (E2) to output (Yn) propagation
delays and the output transition times.
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.7 Waveforms showing the enable input (E1, LE)
to output (Yn) propagation delays and the
output transition times.
The shaded areas indicate when the input is permitted
to change for predictable output performance.
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.8 Waveforms showing the data set-up, hold times for An input to LE input and the latch enable pulse width.
APPLICATION INFORMATION
December 1990
Fig.9 6-to-64 line decoder with input address storage.
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