Datasheet
SN54HCT573, SN74HCT573
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS176E – MARCH 1984 – REVISED JULY 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
V
CC
T
A
= 25°C SN54HCT573 SN74HCT573
UNIT
PARAMETER
(INPUT) (OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
D
Q
4.5 V 25 35 53 44
t
d
D
Q
5.5 V 21 32 48 40
ns
t
pd
LE
Any Q
4.5 V 28 35 53 44
ns
LE
Any
Q
5.5 V 25 32 48 40
t
OE
Any Q
4.5 V 26 35 53 44
ns
t
en
OE
Any
Q
5.5 V 23 32 48 40
ns
t
di
OE
Any Q
4.5 V 23 35 53 44
ns
t
dis
OE
Any
Q
5.5 V 22 32 48 40
ns
t
t
Any Q
4.5 V 9 12 18 15
ns
t
t
Any
Q
5.5 V 9 11 16 14
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
V
CC
T
A
= 25°C SN54HCT573 SN74HCT573
UNIT
PARAMETER
(INPUT) (OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
D
Q
4.5 V 32 52 79 65
t
d
D
Q
5.5 V 27 47 71 59
ns
t
pd
LE
Any Q
4.5 V 38 52 79 65
ns
LE
Any
Q
5.5 V 36 47 71 59
t
OE
Any Q
4.5 V 33 52 79 65
ns
t
en
OE
Any
Q
5.5 V 28 47 71 59
ns
t
t
Any Q
4.5 V 18 42 63 53
ns
t
t
Any
Q
5.5 V 16 38 57 48
ns
operating characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per latch No load 50 pF
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