Diodes 74AHC595 - Manual (Page 5)

74AHC595
Document number: DS35486 Rev. 3 - 2
5 of 10
www.diodes.com
June 2013
© Diodes Incorporated
74AHC595
Switching Characteristics
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
f
MAX
Maximum
Frequency
SHCP or STCP Figure 2
3.0V to 3.6V 80 125  60  40 
MHz
4.5V to 5.5V 130 70  110  90 
t
W
Pulse Width
SHCP
HIGH or LOW
Figure 2
3.0V to 3.6V 5.0   5.0  5.0 
ns
4.5V to 5.5V 5.0   5.0  5.0 
STCP
HIGH or LOW
Figure 2
3.0V to 3.6V 5.0   5.0  5.0 
4.5V to 5.5V 5.0   5.0  5.0 
MR LOW Figure 2
3.0V to 3.6V 5.0   5.0  5.0 
4.5V to 5.5V 5.0   5.0  5.0 
t
SU
Set-up Time
DS to SHCP Figure 2
3.0V to 3.6V 3.5   3.5  3.5 
ns
4.5V to 5.5V 3.0   3.0  3.0 
SHCP to STCP Figure 2
3.0V to 3.6V 8.5   8.5  8.5 
ns
4.5V to 5.5V 5.0   5.0  5.0 
t
H
Hold Time
DS to SHCP Figure 2
3.0V to 3.6V 1.5   1.5  1.5 
ns
4.5V to 5.5V 2.0   2.0  2.0 
t
REC
Recovery Time
MR to SHCP Figure 2
3.0V to 3.6V 3.0   3.0  3.0 
ns
4.5V to 5.5V 2.5   2.5  2.5 
t
PD
Propagation
Delay
SHCP to Q7S
Figure 2
C
L
= 15pF
3.0V to 3.6V  5.7 13.0 1.0 15.0 1.0 16.5
ns
4.5V to 5.5V  4.0 8.2 1.0 9.4 1.0 10.5
Figure 2
C
L
= 50pF
3.0V to 3.6V  7.7 16.5 1.0 18.5 1.0 20.1
4.5V to 5.5V  5.4 10.0 1.0 11.4 1.0 12.5
STCP to Qn
Figure 2
C
L
= 15pF
3.0V to 3.6V  5.9 11.9 1.0 13.5 1.0 15.0
ns
4.5V to 5.5V  4.2 7.4 1.0 8.5 1.0 10.5
Figure 2
C
L
= 50pF
3.0V to 3.6V  7.7 15.4 1.0 17.0 1.0 18.5
4.5V to 5.5V  5.5 9.0 1.0 10.5 1.0 11.5
MR to Q7S
Figure 2
C
L
= 15pF
3.0V to 3.6V  5.9 12.8 1.0 13.7 1.0 15.0
ns
4.5 V to 5.5V  4.4 8.0 1.0 9.1 1.0 10.5
Figure 2
C
L
= 50pF
3.0V to 3.6V  7.4 16.3 1.0 17.2 1.0 18.7
4.5V to 5.5V  5.6 10.0 1.0 11.1 1.0 12.0
t
EN
Enable Time
OE to Qn
Figure 2
C
L
= 15pF
3.0V to 3.6V  5.6 11.5 1.0 13.5 1.0 15.0
ns
4.5V to 5.5V  4.0 8.6 1.0 10.0 1.0 10.5
Figure 2
C
L
= 50pF
3.0V to 3.6V  7.4 15.0 1.0 17.0 1.0 18.5
4.5V to 5.5V  5.3 10.6 1.0 12.0 1.0 13.0
t
DIS
Disable Time
OE to Qn
Figure 2
C
L
= 15pF
3.0V to 3.6V  5.4 11.0 1.0 13.0 1.0 14.5
ns
4.5V to 5.5V  3.8 8.0 1.0 9.5 1.0 10.5
Figure 2
C
L
= 50pF
3.0V to 3.6V  8.7 15.7 1.0 16.2 1.0 17.5
4.5V to 5.5V  5.8 10.3 1.0 11.0 1.0 12.0
Operating Characteristics (@T
A
= +25°C, unless otherwise specified.)
Parameter
Test
Conditions
V
CC
= 5V
Unit
Typ
C
pd
Power dissipation
capacitance
f = 1 MHz all outputs switching-no load 42 pF