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74LCXH2245MSA Folha de dados(PDF) 4 Page - Fairchild Semiconductor

Nome de Peças 74LCXH2245MSA
Descrição Electrónicos  Low Voltage Bidirectional Transceiver with Bushold and 26??Series Resistors in B Outputs
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

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4
DC Electrical Characteristics (Continued)
Note 4: Outputs disabled or 3-STATE only.
Note 5: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 6: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
AC Electrical Characteristics
Note 7: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Symbol
Parameter
Conditions
VCC
TA = −40°C to +85°C
Units
(V)
Min
Max
VOL
LOW Level Output Voltage
IOL = 100 µA2.3 − 3.6
0.2
V
A Outputs
IOL = 8 mA
2.3
0.6
IOL = 12 mA
2.7
0.4
IOL = 16 mA
3.0
0.4
IOL = 24 mA
3.0
0.55
VOL
LOW Level Output Voltage
IOL = 100 µA2.3 − 3.6
0.2
V
B Outputs
IOL = 4 mA
2.3
0.6
IOL = 4 mA
2.7
0.4
IOL = 6 mA
3.0
0.55
IOL = 8 mA
2.7
0.6
IOL = 12 mA
3.0
0.8
II
Input Leakage Current
VI = VCC or GND
2.3
− 3.6
±5.0
µA
II(HOLD)
Bushold Input Minimum
VIN = 0.7V
2.3
45
µA
Drive Hold Current
VIN = 1.7V
−45
VIN = 0.8V
3.0
75
VIN = 2.0V
−75
II(OD)
Bushold Input Over-Drive
(Note 5)
2.7
300
µA
Current to Change State
(Note 6)
−300
(Note 5)
3.6
450
(Note 6)
−450
IOZ
3-STATE I/O Leakage
VO = VCC or GND
2.3
− 3.6
±5.0
µA
VI = VIH or VIL
ICC
Quiescent Supply Current
VI = VCC or GND
2.3
− 3.6
10
µA
3.6V
≤ V
I, VO ≤ 5.5V (Note 4)
2.3
− 3.6
±10
∆I
CC
Increase in ICC per Input
VIH = VCC −0.6V
2.3 - 3.6
500
µA
Symbol
Parameter
TA = −40°C to +85°C, RL = 500Ω
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
VCC = 2.5V ± 0.2V
CL = 50 pF
CL = 50 pF
CL = 30 pF
Min
Max
Min
Max
Min
Max
tPHL
Propagation Delay
1.58.0
1.59.0
1.59.6
ns
tPLH
A to B
tPHL
Propagation Delay
1.57.0
1.58.0
1.58.4
ns
tPLH
B to A
tPZL
Output Enable Time
1.5
9.5
1.5
10.5
1.5
11.0
ns
tPZH
A to B
tPZL
Output Enable Time
1.58.5
1.59.5
1.5
10.5
ns
tPZH
B to A
tPLZ
Output Disable Time
1.57.5
1.58.5
1.59.0
ns
tPHZ
A to B
tPLZ
Output Disable Time
1.57.5
1.58.5
1.59.0
ns
tPHZ
B to A
tOSHL
Output to Output Skew
1.0
ns
tOSLH
(Note 7)


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