Datasheet

74HC_HCT373 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 5 — 13 December 2011 16 of 26
NXP Semiconductors
74HC373; 74HCT373
Octal D-type transparent latch; 3-state
Measurement points are given in Table 10.
Fig 10. 3-state enable and disable time
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t
PLZ
t
PHZ
outputs
disabled
outputs
enabled
90%
10%
outputs
enabled
output
LOW-to-OFF
OFF-to-LOW
output
HIGH-to-OFF
OFF-to-HIGH
OE input
V
I
V
OL
V
OH
V
CC
V
M
GND
GND
t
PZL
t
PZH
V
M
V
M
Measurement points are given in Table 10.
Fig 11. Set-up and hold time data input (Dn) to latch enable input (LE)
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V
M
LE input
Dn input
V
M
t
h
t
su
t
h
t
su
Table 10. Measurement points
Type Input Output
V
M
V
M
74HC373 0.5V
CC
0.5V
CC
74HCT373 1.3 V 1.3 V