Diodes 74HCT594 - Manual (Page 7)

74HCT594
Document number: DS35491 Rev. 2 - 2
7 of 12
www.diodes.com
June 2013
© Diodes Incorporated
74HCT594
Switching Characteristics (cont.)
Symbol /
Parameter
Pins
Test
Conditions
V
CC
T
A
= +25°C -40°C to +85°C -40°C to +125°C
Unit
Min Typ. Max Min Max Min Max
t
PHL
Propagation
Delay
SHR to Q7S
Figure 2
C
L
=50pF
4.5 V  17 30  38  45
ns
Figure 2
C
L
=15pF
5.0 V  14     
STR to Qn
Figure 2
C
L
=50pF
4.5 V  17 30  38  45
ns
Figure 2
C
L
=15pF
5.0 V  14     
t
THL
t
TLH
Transition
Times
Serial data
output Q7S
Figure 2
C
L
=50pF
4.5 V  7 15  19  22 ns
Parallel Data
Outputs Q
N
Figure 2
C
L
=50pF
4.5 V  5 12  15  18 ns