74AHC257 Просмотр технического описания (PDF) - NXP Semiconductors.
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74AHC257 Datasheet PDF : 16 Pages
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Nexperia
74AHC257; 74AHCT257
Quad 2-input multiplexer; 3-state
Table 6. Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ Max Min Max
Min
Max
II
input leakage VI = 5.5 V or GND;
current
VCC = 0 V to 5.5 V
-
- 0.1
-
1.0
-
2.0 µA
IOZ
OFF-state
VI = VIH or VIL;
output current VO = VCC or GND;
VCC = 5.5 V
-
- ±0.25 -
±2.5
-
±10.0 µA
ICC
supply current VI = VCC or GND; IO = 0 A;
-
- 4.0
-
40
-
80 µA
VCC = 5.5 V
CI
input
VI = VCC or GND
capacitance
-
3 10
-
10
-
10 pF
CO
output
capacitance
-
4
-
-
-
-
-
pF
74AHCT257
VIH
HIGH-level VCC = 4.5 V to 5.5 V
input voltage
2.0 -
-
2.0
-
2.0
-
V
VIL
LOW-level VCC = 4.5 V to 5.5 V
input voltage
-
- 0.8
-
0.8
-
0.8 V
VOH
VOL
II
IOZ
ICC
∆ICC
CI
HIGH-level VI = VIH or VIL; VCC = 4.5 V
output voltage IO = −50 µA
IO = −8.0 mA
LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage IO = 50 µA
IO = 8.0 mA
input leakage VI = 5.5 V or GND;
current
VCC = 0 V to 5.5 V
OFF-state
VI = VIH or VIL;
output current VO = VCC or GND per input
pin; other inputs at
VCC or GND; IO = 0 A;
VCC = 5.5 V
supply current VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
additional
per input pin;
supply current VI = VCC − 2.1 V;
other pins at VCC or GND;
IO = 0 A; VCC = 4.5 V to 5.5 V
input
VI = VCC or GND
capacitance
4.4
3.94
-
-
-
-
-
-
-
4.5 -
-
-
0 0.1
- 0.36
- 0.1
- ±0.25
- 4.0
- 1.35
3 10
4.4
3.80
-
-
-
-
-
-
-
-
-
0.1
0.44
1.0
±2.5
40
1.5
10
4.4
3.70
-
-
-
-
-
-
-
-
V
-
V
0.1 V
0.55 V
2.0 µA
±10.0 µA
80 µA
1.5 mA
10 pF
CO
output
capacitance
-
4
-
-
-
-
-
pF
74AHC_AHCT257_2
Product data sheet
Rev. 02 — 9 May 2008
© Nexperia B.V. 2017. All rights reserved
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