Features: Input and output interface capability to systems at 5V VCC Bushold data inputs eliminate the need for external pull-up resistors to hold unused inputs (74LVTH245), also available without bushold feature (74LVT245). Live insertion/extraction permitted Power Up/Down high impedance provides...
74LVTH245: Features: Input and output interface capability to systems at 5V VCC Bushold data inputs eliminate the need for external pull-up resistors to hold unused inputs (74LVTH245), also available without b...
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Symbol |
Parameter |
Value |
Conditions |
Units |
VCC |
Supply Voltage |
−0.5 to +4.6 |
V | |
VI |
DC Input Voltage |
−0.5 to +7.0 |
V | |
VO |
DC Output Voltage |
−0.5 to +7.0 |
Output in 3-STATE |
V |
−0.5 to +7.0 |
Output in HIGH or LOW State (Note 7) |
V | ||
IIK |
DC Input Diode Current |
−50 |
VI < GND |
mA |
IOK |
DC Output Diode Current |
−50 |
VO < GND |
mA |
IO |
DC Output Current |
64 |
VO > VCC Output at HIGH State |
mA |
128 |
VO > VCC Output at LOW State | |||
ICC |
DC Supply Current per Supply Pin |
±64 |
mA | |
IGND |
DC Ground Current per Ground Pin |
±128 |
mA | |
TSTG |
Storage Temperature |
−65 to +150 |
°C |
The 74LVTH245 contain eight non-inverting bidirectional buffers with 3-STATE outputs and are intended for bus-oriented applications. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition.
The 74LVTH245 data inputs include bushold, eliminating the need for external pull-up resistors to hold unused inputs. These transceivers are designed for low-voltage (3.3V) VCC applications, but with the capability to provide a TTL interface to a 5V environment. The 74LVTH245 are fabricated with an advanced BiCMOS technology to achieve high speed operation similar to 5V ABT while maintaining a low power dissipation.