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74LCXH245MSA View Datasheet(PDF) - Fairchild Semiconductor

Part NameDescriptionManufacturer
74LCXH245MSA Low Voltage Bidirectional Transceiver with Bushold Fairchild
Fairchild Semiconductor Fairchild
74LCXH245MSA Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
DC Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
VCC
(V)
II(HOLD)
Bushold Input Minimum
VIN = 0.7V
2.3
Drive Hold Current
VIN = 1.7V
VIN = 0.8V
3.0
VIN = 2.0V
II(OD)
Bushold Input Over-Drive
(Note 6)
2.7
Current to Change State
(Note 7)
(Note 6)
3.6
(Note 7)
IOZ
3-STATE I/O Leakage
ICC
Quiescent Supply Current
ICC
Increase in ICC per Input
Note 5: Outputs disabled or 3-STATE only.
VO = VCC or GND
VI = VCC or GND
3.6V VI, VO 5.5V (Note 5)
VIH = VCC 0.6V
2.3 3.6
2.3 3.6
2.3 3.6
2.3 - 3.6
Note 6: An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 7: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
TA = −40°C to +85°C
Min
Max
45
45
75
75
300
300
450
450
±5.0
10
±10
500
Units
µA
µA
µA
µA
µA
AC Electrical Characteristics
TA = −40°C to +85°C, RL = 500
Symbol
Parameter
VCC = 3.3V ± 0.3V
CL = 50 pF
VCC = 2.7V
CL = 50 pF
VCC = 2.5V ± 0.2V
CL = 30 pF
Units
Min
Max
Min
Max
Min
Max
tPHL
Propagation Delay
tPLH
An to Bn or Bn to An
1.5
7.0
1.5
8.0
1.5
8.4
ns
1.5
7.0
1.5
8.0
1.5
8.4
tPZL
tPZH
Output Enable Time
1.5
8.5
1.5
9.5
1.5
10.5
ns
1.5
8.5
1.5
9.5
1.5
10.5
tPLZ
Output Disable Time
1.5
7.5
1.5
8.5
1.5
9.0
ns
tPHZ
1.5
7.5
1.5
8.5
1.5
9.0
tOSHL
Output to Output Skew
1.0
ns
tOSLH
(Note 8)
1.0
Note 8: 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).
Dynamic Switching Characteristics
Symbol
Parameter
VOLP
Quiet Output Dynamic Peak VOL
VOLV
Quiet Output Dynamic Valley VOL
Capacitance
Conditions
CL = 50 pF, VIH = 3.3V, VIL = 0V
CL = 30 pF, VIH = 2.5V, VIL = 0V
CL = 50 pF, VIH = 3.3V, V IL = 0V
CL = 30 pF, VIH = 2.5V, VIL = 0V
VCC
TA = 25°C
Units
(V)
Typical
3.3
0.8
V
2.5
0.6
3.3
0.8
V
2.5
0.6
Symbol
CIN
CI/O
CPD
Parameter
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
Conditions
VCC = Open, VI = 0V or VCC
VCC = 3.3V, VI = 0V or VCC
VCC = 3.3V, VI = 0V or VCC, f = 10 MHz
Typical
7
8
25
Units
pF
pF
pF
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