PI74LPT244R データシートの表示（PDF） - Pericom Semiconductor
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PI74LPT244R Datasheet PDF : 4 Pages
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PI74LPT244
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Switching Characteristics over Operating Range(1)
Parameters Description
Conditions(2)
LPT244
Com.
Min.(3) Max.
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
Propagation Delay
DXX to OXX
Output Enable Time
OEx to Oxx
Output Disable Time(4)
OEx to Oxx
Output Skew(5)
CL = 50 pF
RL = 500Ω
1.5
6.5
1.5
8.0
1.5
7.0
0.5
LPT244A
Com.
Min.(3) Max.
1.5
4.8
1.5
6.2
1.5
5.6
0.5
LPT244C
Com.
Min.(3) Max.
1.5
4.1
Units
ns
1.5
5.8 ns
1.5
5.2 ns
0.5 ns
Notes:
1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all
Propagation Delays and Enable/Disable times should be degraded by 20%.
2. See test circuit and waveforms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. This parameter is guaranteed but not production tested.
5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
4
PS2058A 01/15/97
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