Datasheet

SN54AHC574, SN74AHC574
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS244I – OCTOBER 1995 – REVISED JULY 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54AHC574 SN74AHC574
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
C
L
= 15 pF 130* 180* 110* 110
MHz
f
max
C
L
= 50 pF 85 115 75 75
MHz
t
PLH
CLK
Q
C
L
=15
p
F
5.6* 8.6* 1* 10* 1 10
ns
t
PHL
CLK
Q
C
L
=
15
pF
5.6* 8.6* 1* 10* 1 10
ns
t
PZH
OE
Q
C
L
=15
p
F
5.9* 9* 1* 10.5* 1 10.5
ns
t
PZL
OE
Q
C
L
=
15
pF
5.9* 9* 1* 10.5* 1 10.5
ns
t
PHZ
OE
Q
C
L
=15
p
F
5.5* 9* 1* 10.5* 1 10.5
ns
t
PLZ
OE
Q
C
L
=
15
pF
5.5* 9* 1* 10.5* 1 10.5
ns
t
PLH
CLK
Q
C
L
=50
p
F
7.1 10.6 1 12 1 12
ns
t
PHL
CLK
Q
C
L
=
50
pF
7.1 10.6 1 12 1 12
ns
t
PZH
OE
Q
C
L
=50
p
F
7.4 11 1 12.5 1 12.5
ns
t
PZL
OE
Q
C
L
=
50
pF
7.4 11 1 12.5 1 12.5
ns
t
PHZ
OE
Q
C
L
=50
p
F
7.1 10.1 1 11.5 1 11.5
ns
t
PLZ
OE
Q
C
L
=
50
pF
7.1 10.1 1 11.5 1 11.5
ns
t
sk(o)
C
L
= 50 pF 1** 1 ns
∗
On products compliant to MIL-PRF-38535, this parameter is not production tested.
∗∗
On products compliant to MIL-PRF-38535, this parameter does not apply.
noise characteristics, V
CC
= 5 V, C
L
= 50 pF, T
A
= 25°C (see Note 4)
PARAMETER
SN74AHC574
UNIT
PARAMETER
MIN MAX
UNIT
V
OL(P)
Quiet output, maximum dynamic V
OL
0.8 V
V
OL(V)
Quiet output, minimum dynamic V
OL
–0.8 V
V
OH(V)
Quiet output, minimum dynamic V
OH
4.2 V
V
IH(D)
High-level dynamic input voltage 3.5 V
V
IL(D)
Low-level dynamic input voltage 1.5 V
NOTE 4: Characteristics are for surface-mount packages only.
operating characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance No load, f = 1 MHz 28 pF