Data Sheet
SN54LV123A, SN74LV123A
SCLS393P –APRIL 1998–REVISED OCTOBER 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
Recommended
–55°C to 125°C –40°C to 85°C
–40°C to 125°C
SN54LV123A
(1)
SN74LV123A
PARAMETER TEST CONDITIONS V
CC
UNIT
SN74LV123A
MIN TYP MAX MIN TYP MAX MIN TYP MAX
V
CC
– V
CC
– V
CC
–
I
OH
= –50 μA 2 V to 5.5 V
0.1 0.1 0.1
I
OH
= –2 mA 2.3 V 2 2 2
V
OH
V
I
OH
= –6 mA 3 V 2.48 2.48 2.48
I
OH
= –12 mA 4.5 V 3.8 3.8 3.8
I
OL
= 50 μA 2 V to 5.5 V 0.1 0.1 0.1
I
OL
= 2 mA 2.3 V 0.4 0.4 0.4
V
OL
V
I
OL
= 6 mA 3 V 0.44 0.44 0.44
I
OL
= 12 mA 4.5 V 0.55 0.55 0.55
R
ext
/C
ext
(2)
V
I
= 5.5 V or GND 5.5 V ±2.5 ±2.5 ±25
I
I
0 V ±1 ±1 ±1 μA
A, B, and
V
I
= 5.5 V or GND
CLR
0 to 5.5 V ±1 ±1 ±1
V
I
= V
CC
I
CC
Quiescent I
O
= 0 5.5 V 20 20 20 μA
or GND,
3 V 280 280 280
Active state V
I
= V
CC
or GND,
I
CC
4.5 V 650 650 650 μA
(per circuit) R
ext
/C
ext
= 0.5 V
CC
5.5 V 975 975 975
I
off
V
I
or V
O
= 0 to 5.5 V 0 V 5 5 μA
3.3 V 1.9 1.9 1.9
C
i
V
I
= V
CC
or GND pF
5 V 1.9 1.9 1.9
(1) Product Preview
(2) This test is performed with the terminal in the off-state condition.
TIMING REQUIREMENTS
over recommended operating free-air temperature range, V
CC
= 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 3)
–55°C to 125°C –40°C to 85°C –40°C to 125°C
T
A
= 25°C
SN54LV123A
(1)
SN74LV123A SN74LV123A
PARAMETER TEST CONDITIONS UNIT
MIN TYP MIN MAX MIN MAX MIN MAX
CLR 6 6.5 6.5 6.5
t
w
Pulse duration ns
A or B trigger 6 6.5 6.5 6.5
C
ext
= 100 pF See
(2)
94 See
(2)
See
(2)
See
(2)
ns
t
rr
Pulse retrigger time R
ext
= 1 kΩ
C
ext
= 0.01 μF See
(2)
2 See
(2)
See
(2)
See
(2)
μs
(1) Product Preview
(2) See etriggering data in the Application Information section
TIMING REQUIREMENTS
over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 3)
–40°C to
–55°C to 125°C –40°C to 125°C
T
A
= 25°C 85°C
SN54LV123A
(1)
SN74LV123A
PARAMETER TEST CONDITIONS UNIT
SN74LV123A
MIN TYP MIN MAX MIN MAX MIN MAX
CLR 5 5 5 5
t
w
Pulse duration ns
A or B trigger 5 5 5 5
C
ext
= 100 pF See
(2)
76 See
(2)
See
(2)
See
(2)
ns
t
rr
Pulse retrigger time R
ext
= 1 kΩ
C
ext
= 0.01 μF See
(2)
1.8 See
(2)
See
(2)
See
(2)
μs
(1) Product Preview
(2) See retriggering data in the Application Information section
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Product Folder Links: SN54LV123A, SN74LV123A