www.fairchildsemi.com 4
MM74HC589
AC Electrical Characteristics
V
CC
= 5V, T
A
= 25°C, C
L
= 15 pF, t
r
= t
f
= 6 ns
AC Electrical Characteristics
V
CC
= 2.0−6V, C
L
= 50 pF, t
r
= t
f
= 6 ns (unless otherwise specified)
Symbol Parameter Conditions Typ Guaranteed Limit Units
f
MAX
Maximum Operating Frequency for SCK 50 30 MHz
t
PHL
, t
PLH
Maximum Propagation Delay from SCK to Q
H’
30 ns
t
PHL
, t
PLH
Maximum Propagation Delay from SLOAD to Q
H’
30 ns
t
PHL
, t
PLH
Maximum Propagation Delay from LCK to Q
H’
SLOAD = logic “0” 25 45 ns
t
PZH
, t
PZL
Output Enable Time R
L
= 1 kΩ 18 28 ns
t
PHZ
, t
PLZ
Output Disable Time R
L
= 1 kΩ, C
L
= 5 pF 19 25 ns
t
S
Minimum Setup Time from RCK to SCK 10 20 ns
t
S
Minimum Setup Time from SER to SCK 10 20 ns
t
S
Minimum Setup Time from Inputs A thru H to RCK 10 20 ns
t
H
Minimum Hold Time 0 5 ns
t
W
Minimum Pulse Width SCK, RCK, SLOAD 816ns
Symbol Parameter Conditions
V
CC
T
A
= 25°CT
A
= −40 to 85°CT
A
= −55 to 125°C
Units
Typ Guaranteed Limits
f
MAX
Maximum Operating 2.0V 6 4.8 4 MHz
Frequency for SCK 4.5V 30 24 20 MHz
6.0V 35 28 24 MHz
t
PHL
, t
PLH
Maximum Propagation 2.0V 62 175 220 265 ns
Delay from SCK or 4.5V 20 35 44 53 ns
SLOAD to Q
H
6.0V 18 30 37 45 ns
t
PHL
, t
PLH
Maximum Propagation 2.0V 120 225 280 340 ns
Delay from SCK or C
L
= 150 pF 4.5V 31 45 56 68 ns
SLOAD
to Q
H
6.0V 28 38 48 58 ns
t
PHL
, t
PLH
Maximum Propagation 2.0V 80 210 265 315 ns
Delay from RCK to Q
H
4.5V 25 42 53 63 ns
6.0V 21 36 45 54 ns
t
PHL
, t
PLH
Maximum Propagation 2.0V 80 210 265 313 ns
Delay RCK to Q
H
C
L
= 150 pF 4.5V 25 52 66 77 ns
6.0V 21 44 56 66 ns
t
PZH
, t
PZL
Output Enable Time R
L
= 1 kΩ 2.0V 70 150 189 224 ns
4.5V 22 30 38 45 ns
6.0V 20 26 32 38 ns
t
PHZ
, t
PLZ
Output Disable Time R
L
= 1 kΩ 2.0V 70 150 189 224 ns
4.5V 22 30 38 45 ns
6.0V 20 26 32 38 ns
t
S
Minimum Setup Time 2.0V 100 125 150 ns
from RCK to SCK 4.5V 20 25 30 ns
6.0V 17 22 25 ns
t
S
Minimum Setup Time 2.0V 100 125 150 ns
from SER to SCK 4.5V 20 25 30 ns
6.0V 17 22 25 ns
t
S
Minimum Setup Time 2.0V 100 125 150 ns
from Inputs A thru H 4.5V 20 25 30 ns
to RCK 6.0V 17 22 25 ns
t
H
Minimum Hold Time 2.0V −55 5 5 ns
4.5V 0 5 5 5 ns
6.0V 1 5 5 5 ns
t
W
Minimum Pulse Width 2.0V 30 80 100 120 ns
SCK, RCK, SLOAD, 4.5V 9 16 20 24 ns
SLOAD 6.0V 8 14 17 20 ns
