74HCT4520N,112 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
74HCT4520N,112 Datasheet PDF : 7 Pages
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Philips Semiconductors
Dual 4-bit synchronous binary counter
AC WAVEFORMS
Product specification
74HC/HCT4520
Conditions:
nCP1 = HIGH while nCP0 is triggered on a LOW-to-HIGH transition; tW
and trem also apply when nCP0 = LOW and nCP1 is triggered on a
HIGH-to-LOW transition.
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.7 Waveforms showing removal time for nMR; minimum nCP0, nCP1, nMR pulse widths and maximum clock
pulse frequency.
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.8 Waveforms showing set-up times for nCP0 to nCP1 and nCP1 to nCP0, propagation delays and output
transition times.
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.9 Waveforms showing propagation delay from nMR to nQn output.
PACKAGE OUTLINES
See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.
December 1990
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