TC74AC257P 查看數據表（PDF） - Toshiba
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TC74AC257P Datasheet PDF : 9 Pages
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Operating Ranges (Note)
TC74AC257,258P/F/FN
Characteristics
Symbol
Rating
Unit
Supply voltage
Input voltage
Output voltage
Operating temperature
Input rise and fall time
VCC
VIN
VOUT
Topr
dt/dV
2.0~5.5
0~VCC
0~VCC
−40~85
0~100 (VCC = 3.3 ± 0.3 V)
0~20 (VCC = 5 ± 0.5 V)
V
V
V
°C
ns/V
Note: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Electrical Characteristics
DC Characteristics
Characteristics
Symbol
High-level input
voltage
VIH
Low-level input
voltage
VIL
High-level output
voltage
VOH
Low-level output
voltage
VOL
3-state output
off-state current
IOZ
Input leakage
current
IIN
Quiescent supply
current
ICC
Test Condition
Ta = 25°C
Ta = −40~85°C
VCC
(V)
Min
Typ.
Max
Min
Max
Unit
2.0 1.50 ⎯
⎯ 1.50 ⎯
⎯
3.0 2.10 ⎯
⎯ 2.10 ⎯
V
5.5 3.85 ⎯
⎯ 3.85 ⎯
2.0 ⎯
⎯ 0.50 ⎯ 0.50
⎯
3.0 ⎯
⎯
0.90
⎯
0.90
V
5.5 ⎯
⎯ 1.65 ⎯ 1.65
2.0 1.9 2.0
⎯
1.9
⎯
IOH = −50 μA
VIN
= VIH or
VIL
IOH = −4 mA
IOH = −24 mA
3.0 2.9 3.0
⎯
2.9
⎯
4.5 4.4 4.5
⎯
4.4
⎯
V
3.0 2.58 ⎯
⎯ 2.48 ⎯
4.5 3.94 ⎯
⎯ 3.80 ⎯
IOH = −75 mA (Note) 5.5 ⎯
⎯
⎯ 3.85 ⎯
2.0 ⎯
0.0 0.1
⎯
0.1
IOL = 50 μA
VIN
= VIH or
VIL
IOL = 12 mA
3.0 ⎯
4.5 ⎯
3.0 ⎯
IOL = 24 mA
4.5 ⎯
IOL = 75 mA (Note) 5.5 ⎯
VIN = VIH or VIL
VOUT = VCC or GND
5.5 ⎯
0.0 0.1
⎯
0.1
0.0 0.1
⎯
0.1
V
⎯ 0.36 ⎯ 0.44
⎯ 0.36 ⎯ 0.44
⎯
⎯
⎯ 1.65
⎯ ±0.5 ⎯ ±5.0 μA
VIN = VCC or GND
5.5 ⎯
⎯ ±0.1 ⎯ ±1.0 μA
VIN = VCC or GND
5.5 ⎯
⎯
8.0
⎯ 80.0 μA
Note:
This spec indicates the capability of driving 50 Ω transmission lines.
One output should be tested at a time for a 10 ms maximum duration.
4
2007-10-01
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