SN54ACT373_16 Datasheet, PDF (3/22 Pages) Texas Instruments – OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS

SN54ACT373, SN74ACT373
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS544E – OCTOBER 1995 – REVISED OCTOBER 2002
recommended operating conditions (see Note 3)
SN54ACT373 SN74ACT373
UNIT
MIN MAX MIN MAX
VCC
VIH
VIL
VI
VO
IOH
IOL
∆t/∆v
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
Output voltage
High-level output current
Low-level output current
Input transition rise or fall rate
4.5 5.5
2
0.8
0 VCC
0 VCC
–24
24
8
4.5 5.5 V
2
V
0.8 V
0 VCC V
0 VCC V
–24 mA
24 mA
8 ns/V
TA
Operating free-air temperature
–55 125 –40
85 °C
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.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54ACT373 SN74ACT373
MIN TYP MAX MIN MAX MIN MAX
IOH = –50 µA
4.5 V 4.4 4.49
4.4
4.4
5.5 V 5.4 5.49
5.4
5.4
VOH
IOH = –24 mA
IOH = –50 mA^†
IOH = –75 mA^†
IOL = 50 µA
4.5 V 3.86
5.5 V 4.86
5.5 V
5.5 V
4.5 V
5.5 V
3.7
3.76
4.7
4.76
3.85
3.85
0.1
0.1
0.1
0.1
0.1
0.1
VOL
IOZ
II
ICC
∆ICC^‡
IOL = 24 mA
IOL = 50 mA^†
IOL = 75 mA^†
VO = VCC or GND
VI = VCC or GND
VI = VCC or GND,
IO = 0
One input at 3.4 V,
Other inputs at GND or VCC
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
0.36
0.44
0.44
0.36
0.44
0.44
1.65
1.65
±0.25
±5
±2.5
±0.1
±1
±1
4
80
40
0.6
1.5
1.5
Ci
VI = VCC or GND
5V
4.5
† _{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.}
UNIT
V
V
µA
µA
µA
mA
pF
timing requirements over recommended operating free-air temperature range, V_CC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
tw Pulse duration, LE high
tsu Setup time, data before LE↓
th
Hold time, data after LE↓
TA = 25°C SN54ACT373 SN74ACT373
MIN MAX MIN MAX MIN MAX
7
8.5
8
7
8.5
8
0
1
1
UNIT
ns
ns
ns
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