Datasheet
©1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
74LVT245, 74LVTH245 Rev. 1.4.0 4
74LVT245, 74LVTH245 — Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
DC Electrical Characteristics
Notes:
2. Applies to Bushold versions only (LVTH245).
3. An external driver must source at least the specified current to switch from LOW-to-HIGH.
4. An external driver must sink at least the specified current to switch from HIGH-to-LOW.
5. This is the increase in supply current for each input that is at the specified voltage level rather than V
CC
or GND.
Symbol Parameter V
CC
(V) Conditions
T
A
=
–40°C to +85°C
UnitsMin. Max.
V
IK
Input Clamp Diode Voltage 2.7 I
I
=
–18mA –1.2 V
V
IH
Input HIGH Voltage 2.7–3.6 V
O
≤
0.1V or
V
O
≥
V
CC
– 0.1V
2.0 V
V
IL
Input LOW Voltage 2.7–3.6 0.8
V
OH
Output HIGH Voltage 2.7–3.6 I
OH
=
–100µA V
CC
– 0.2 V
2.7 I
OH
=
– 8mA 2.4
3.0 I
OH
=
–32mA 2.0
V
OL
Output LOW Voltage 2.7 I
OL
=
100µA 0.2 V
I
OL
=
24mA 0.5
3.0 I
OL
=
16mA 0.4
I
OL
=
32mA 0.5
I
OL
=
64mA 0.55
I
I(HOLD)
(2)
Bushold Input Minimum Drive 3.0 V
I
=
0.8V 75 µA
V
I
=
2.0V –75
I
I(OD)
(2)
Bushold Input Over-Drive,
Current to Change State
3.0
(3)
500 µA
(4)
–500
I
I
Input Current 3.6 V
I
=
5.5V 10 µA
Control Pins 3.6 V
I
=
0V or V
CC
±1
Data Pins 3.6 V
I
=
0V –5
V
I
=
V
CC
1
I
OFF
Power Off Leakage Current 0 0V
≤
V
I
or V
O
≤
5.5V ±100 µA
I
PU/PD
Power Up/Down, 3-STATE Current 0–1.5V V
O
=
0.5V to V
CC
,
V
I
= GND to V
CC
±100 µA
I
OZL
3-STATE Output Leakage Current 3.6 V
O
= 0.5V –5 µA
I
OZL
(2)
3-STATE Output Leakage Current 3.6 V
O
= 0.0V –5 µA
I
OZH
3-STATE Output Leakage Current 3.6 V
O
= 3.0V 5 µA
I
OZH
(2)
3-STATE Output Leakage Current 3.6 V
O
= 3.6V 5 µA
I
OZH
+ 3-STATE Output Leakage Current 3.6 V
CC
< V
O
≤ 5.5V 10 µA
I
CCH
Power Supply Current 3.6 Outputs HIGH 0.19 mA
I
CCL
Power Supply Current 3.6 Outputs LOW 5 mA
I
CCZ
Power Supply Current 3.6 Outputs Disabled 0.19 mA
I
CCZ
+Power Supply Current 3.6 V
CC
≤ V
O
≤ 5.5V,
Outputs Disabled
0.19 mA
∆I
CC
Increase in Power Supply Current
(5)
3.6 One Input at V
CC
– 0.6V,
Other Inputs at V
CC
or
GND
0.2 mA