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74LVC244A Datasheet(PDF) 9 Page - NXP Semiconductors

Part # 74LVC244A
Description  Octal buffer/line driver with 5 V tolerant inputs/outputs (3-state)
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVC244A Datasheet(HTML) 9 Page - NXP Semiconductors

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2003 Oct 30
9
Philips Semiconductors
Product specification
Octal buffer/line driver with 5 V tolerant
inputs/outputs (3-state)
74LVC244A; 74LVCH244A
AC CHARACTERISTICS
GND = 0 V; tr =tf ≤ 2.5 ns.
Notes
1. All typical values are measured at VCC = 3.3 V and Tamb =25 °C.
2. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed
by design.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
WAVEFORMS
VCC (V)
Tamb = −40 to +85 °C
tPHL/tPLH
propagation delay 1An to 1Yn, 2An to 2Yn see Figs 6 and 8
1.2
17.0
ns
2.7
1.5
3.3
6.9
ns
3.0 to 3.6
1.5
2.8(1)
5.9
ns
tPZH/tPZL
3-state output enable time 1OE to 1Yn,
2OE to 2Yn
see Figs 7 and 8
1.2
24.0
ns
2.7
1.5
3.3
8.6
ns
3.0 to 3.6
1.0
3.4(1)
7.6
ns
tPHZ/tPLZ
3-state output disable time 1OE to 1Yn,
2OE to 2Yn
see Figs 7 and 8
1.2
9.0
ns
2.7
1.5
3.2
6.8
ns
3.0 to 3.6
1.5
2.9(1)
5.8
ns
tsk(0)
skew
note 2
−−
1.0
ns
Tamb = −40 to +125 °C
tPHL/tPLH
propagation delay 1An to 1Yn, 2An to 2Yn see Figs 6 and 8
1.2
−−−
ns
2.7
1.5
9.0
ns
3.0 to 3.6
1.5
7.5
ns
tPZH/tPZL
3-state output enable time 1OE to 1Yn,
2OE to 2Yn
see Figs 7 and 8
1.2
−−−
ns
2.7
1.5
11
ns
3.0 to 3.6
1.0
9.5
ns
tPHZ/tPLZ
3-state output disable time 1OE to 1Yn,
2OE to 2Yn
see Figs 7 and 8
1.2
−−−
ns
2.7
1.5
8.5
ns
3.0 to 3.6
1.5
7.5
ns
tsk(0)
skew
note 2
−−
1.5
ns


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