 English |
|
|
|
|
|
|
|
| MC74VHC257 Datasheet, PDF (4/8 Pages) ON Semiconductor – Quad 2-Channel Multiplexer with 3-State Outputs | |||
| |||
| ◁ |
MC74VHC257
DC CHARACTERISTICS (Voltages Referenced to GND)
VCC
TA = 25°C
TA ⤠85°C â55°C ⤠TA ⤠125°C
Symbol
Parameter
Condition
(V) Min Typ Max Min Max Min
Max Unit
VIH
Minimum HighâLevel
Input Voltage
2.0
3.0 to
5.5
1.5
VCCX
0.7
1.5 1.5
1.5
V
VCCX VCCX
0.7 0.7
VCCX
0.7
VIL
Maximum LowâLevel
Input Voltage
2.0
3.0 to
5.5
0.5
VCCX
0.3
0.5
VCCX
0.3
0.5
V
VCCX
0.3
VOH
Maximum HighâLevel VIN = VIH or VIL
2.0 1.9 2.0
1.9
1.9
V
Output Voltage
IOH = â50 mA
3.0 2.9 3.0
2.9
2.9
4.5 4.4 4.5
4.4
4.4
VIN = VIH or VIL
IOH = â4 mA
IOH = â8 mA
3.0 2.58
4.5 3.94
2.48
2.34
3.8
3.66
VOL
Maximum LowâLevel VIN = VIH or VIL
2.0
0.0 0.1
0.1
Output Voltage
IOL = 50 mA
3.0
0.0 0.1
0.1
4.5
0.0 0.1
0.1
0.1
V
0.1
0.1
VIN = VIH or VIL
IOH = 4 mA
3.0
IOH = 8 mA
4.5
IIN
Input Leakage Current VIN = 5.5 V or GND
0 to
5.5
0.36
0.44
0.36
0.44
±0.1
±1.0
0.52
0.52
±1.0 mA
IOZ
Maximum 3âState
VIN = VIH or VIL
5.5
Leakage Current
VOUT = VCC or GND
±0.25
±2.5
±2.5 mA
ICC
Maximum Quiescent VIN = VCC or GND
5.5
Supply Current
4.0
40.0
40.0 mA
(per package)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
TA = 25°C
TA = ⤠85°C â55°C ⤠TA ⤠125°C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
Parameter
Test Conditions
Min Typ Max Min Max Min
Max Unit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLH,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHL
Maximum Propagation
Delay
A or B to Y
VCC = 3.3 ± 0.3 V
VCC = 5.0 ± 0.5 V
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
5.8 9.3 1.0 11.0
1.0
8.3 12.8 1.0 14.5 1.0
3.6 5.9 1.0 7.0
1.0
5.1 7.9 1.0 9.0
1.0
11.0 ns
14.5
7.0
9.0
tPLH,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHL
Maximum Propagation
Delay
S to Y
VCC = 3.3 ± 0.3 V
VCC = 5.0 ± 0.5 V
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
7.0 11.0 1.0 13.0 1.0
9.5 14.5 1.0 16.5 1.0
4.0 6.8 1.0 8.0
1.0
5.5 8.8 1.0 10.0 1.0
13.0 ns
16.5
8.0
10.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZL,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZH
Maximum Output Enable
Time
OE to Y
VCC = 3.3 ± 0.3 V
RL = 1 kW
VCC = 5.0 ± 0.5 V
RL = 1 kW
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
6.7 10.5 1.0 12.5 1.0
9.2 14.0 1.0 16.0 1.0
3.6 6.8 1.0 8.0
1.0
5.1 8.8 1.0 10.0 1.0
12.5 ns
16.0
8.0
10.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLZ,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHZ
Maximum Output Disable
Time
OE to Y
VCC = 3.3 ± 0.3 V
RL = 1 kW
VCC = 5.0 ± 0.5 V
RL = 1 kW
CL = 50 pF
CL = 50 pF
12.0 15.0 1.0 16.0 1.0
5.7 13.0 1.0 14.0 1.0
17.5 ns
15.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ CIN
Maximum Input
Capacitance
4 10
10
10
pF
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà Typical @ 25°C, VCC = 5.0V
CPD Power Dissipation Capacitance (Note 5)
20
pF
5. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC. CPD is used to determine the noâload dynamic
power consumption; PD = CPD VCC2 fin + ICC VCC.
http://onsemi.com
4
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese