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SN74LV244AT Datasheet, PDF (4/17 Pages) Texas Instruments – OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
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SN74LV244AT
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES572C – JUNE 2004 – REVISED AUGUST 2005
www.ti.com
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
VOH
VOL
II
IOZ
ICC
∆ICC (1)
Ioff
Ci
TEST CONDITIONS
IOH = –50 µA
IOH = –16 mA
IOL = 50 µA
IOL = 16 mA
VI = 5.5 V or GND
VO = VCC or GND
VI = VCC or GND, IO = 0
One input at 3.4 V, Other inputs at VCC or GND
VI or VO = 0 to 5.5 V
VI = VCC or GND
VCC
4.5 V
4.5 V
4.5 V
4.5 V
0 to 5.5 V
5.5 V
5.5 V
5.5 V
0
TA = 25°C
MIN TYP MAX
4.4 4.5
3.8
0 0.1
0.55
±0.1
±0.25
2
1.35
0.5
4.5
TA = –40°C
to 85°C
MIN MAX
4.4
3.8
0.1
0.55
±1
±2.5
20
1.5
5
UNIT
V
V
µA
µA
µA
mA
µA
pF
(1) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
Switching Characteristics
over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TA = 25°C
MIN MAX UNIT
MIN TYP MAX
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tsk(o)
A or B
OE
OE
A or B
OE
OE
B or A
A or B
A or B
B or A
A or B
A or B
CL = 15 pF
CL = 15 pF
CL = 15 pF
CL = 50 pF
CL = 50 pF
CL = 50 pF
CL = 50 pF
2.6 5/4 7.4
2.4 5.4 7.4
2.2 7.7 10.4
2.7 7.7 10.4
2.2 3.9 7.7
2.5 3.9 7.7
4 5.9 8.9
4.7 5.9 8.9
3.9 8.2 11.4
4.9 8.2 11.4
3.3 8.8 11.4
3.2 8.8 11.4
1
1 8.5
ns
1 8.5
1 12
ns
1 12
18
ns
18
1 9.5
ns
1 9.5
1 13
ns
1 13
1 13
ns
1 13
1 ns
Noise Characteristics(1)
VCC = 5 V, CL = 50 pF
PARAMETER
VOL(P)
VOL(V)
VOH(V)
VIH(D)
VIL(D)
Quiet output, maximum dynamic VOL
Quiet output, minimum dynamic VOL
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
Low-level dynamic input voltage
(1) Characteristics are for surface-mount packages only.
TA = 25°C
MIN TYP MAX
0.8
1
–0.8
–1
4
2
0.8
UNIT
V
V
V
V
V
4
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