Datasheet

 
  
  
SCLS450G − DECEMBER 1999 − REVISED APRIL 2005
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
SN54LV221A SN74LV221A
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX MIN TYP MAX
UNIT
I
OH
= −50 µA 2 V to 5.5 V V
CC
−0.1 V
CC
−0.1
V
OH
I
OH
= −2 mA 2.3 V 2 2
V
V
OH
I
OH
= −6 mA 3 V 2.48 2.48
V
I
OH
= −12 mA 4.5 V 3.8 3.8
I
OL
= 50 µA 2 V to 5.5 V 0.1 0.1
V
OL
I
OL
= 2 mA 2.3 V 0.4 0.4
V
V
OL
I
OL
= 6 mA 3 V 0.44 0.44
V
I
OL
= 12 mA 4.5 V 0.55 0.55
R
ext
/C
ext
†
V
I
= 5.5 V or GND 2 V to 5.5 V ±2.5 ±2.5
I
I
A, B, and CLR
V
I
= 5.5 V or GND
0 ±1 ±1
µA
I
I
A, B, and CLR
V
I
= 5.5 V or GND
0 to 5.5 V ±1 ±1
µA
I
CC
Quiescent V
I
= V
CC
or GND, I
O
= 0 5.5 V 20 20 µA
2.3 V 220 220
I
CC
Active state
V
I
= V
CC
or GND,
3 V 280 280
A
I
CC
Active state
(per circuit)
V
I
= V
CC
or GND,
R
ext
/C
ext
= 0.5 V
CC
4.5 V 650 650
µA
(per circuit)
R
ext
/C
ext
= 0.5 V
CC
5.5 V 975 975
I
off
V
I
or V
O
= 0 to 5.5 V 0 5 µA
C
i
V
I
= V
CC
or GND
3.3 V 1.9 1.9
pF
C
i
V
I
= V
CC
or GND
5 V 1.9 1.9
pF
†
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 1)
T
A
= 25°C SN54LV221A SN74LV221A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLR 6 6.5 6.5
ns
t
w
Pulse duration
A or B trigger 6 6.5 6.5
ns
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54LV221A SN74LV221A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLR 5 5 5
ns
t
w
Pulse duration
A or B trigger 5 5 5
ns
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54LV221A SN74LV221A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLR 5 5 5
ns
t
w
Pulse duration
A or B trigger 5 5 5
ns
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