
SN54ACT573, SN74ACT573
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS538D
–
OCTOBER 1995
–
REVISED OCTOBER 2002
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ACT573
MIN
SN74ACT573
MIN
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
IOH
IOL
t/
v
TA
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
Supply voltage
4.5
5.5
4.5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
VCC
VCC
–
24
0
VCC
VCC
–
24
V
Output voltage
0
0
V
High-level output current
mA
Low-level output current
24
24
mA
Input transition rise or fall rate
8
8
ns/V
°
C
Operating free-air temperature
–
55
125
–
40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
4.49
SN54ACT573
SN74ACT573
UNIT
MIN
4.4
MAX
MIN
4.4
MAX
MIN
4.4
MAX
IOH= 50
μ
IOH =
–
A
4.5 V
5.5 V
5.4
5.49
5.4
5.4
VOH
IOH=
IOH =
–
24 mA
4.5 V
3.86
3.7
3.76
V
5.5 V
4.86
4.7
4.76
IOH =
–
50 mA
IOH =
–
75 mA
5.5 V
3.85
5.5 V
3.85
IOL= 50
μ
IOL = 50
A
4.5 V
0.1
0.1
0.1
5.5 V
0.1
0.1
0.1
VOL
IOL= 24 mA
IOL = 24 mA
4.5 V
0.36
0.44
0.44
V
5.5 V
0.36
0.44
0.44
IOL = 50 mA
IOL = 75 mA
VO = VCC or GND
VI = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
Other inputs at GND or VCC
VI = VCC or GND
5.5 V
1.65
5.5 V
1.65
IOZ
II
ICC
5.5 V
±
0.25
±
0.1
±
5
±
1
80
±
2.5
±
1
40
μ
A
μ
A
μ
A
5.5 V
IO = 0
5.5 V
4
ICC
5 5 V
5.5 V
0 6
0.6
1 5
1.5
1 5
1.5
mA
Ci
5 V
5
pF
Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V
±
0.5 V
(unless otherwise noted) (see Figure 1)
TA = 25
°
C
MIN
SN54ACT573
MIN
SN74ACT573
MIN
UNIT
MAX
MAX
MAX
tw
tsu
th
Pulse duration, LE high
Setup time, data before LE
↓
Hold time, data after LE
↓
3.5
5
4
ns
3
4.5
3.5
ns
0
1
0
ns