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74LVT2245

Fairchild Semiconductor
Part Number 74LVT2245
Manufacturer Fairchild Semiconductor
Description Low Voltage Octal Bidirectional Transceiver
Published Mar 22, 2005
Detailed Description 74LVT2245 • 74LVTH2245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25Ω Series Resistors ...
Datasheet PDF File 74LVT2245 PDF File

74LVT2245
74LVT2245

Overview
74LVT2245 • 74LVTH2245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25Ω Series Resistors in the B Port Outputs November 1999 Revised January 2000 74LVT2245 • 74LVTH2245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25Ω Series Resistors in the B Port Outputs General Description The LVT2245 and LVTH2245 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 (activeHIGH) 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 impedance state.
The equivalent 25 Ω-series resistor in the B Port helps reduce output overshoot and undershoot.
The LVTH2245 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 LVT2245 and LVTH2245 are fabricated with an advanced BiCMOS technology to achieve high speed operation similar to 5V ABT while maintaining low power dissipation.
Features s Input and output interface capability to systems at 5V VCC s Equivalent 25Ω series resistor on B Port outputs s Bushold data inputs eliminate the need for external pullup resistors to hold unused inputs (74LVTH2245), also available without bushold feature (74LVT2245) s Live insertion/extraction permitted s Power Up/Down high impedance provides glitch-free bus loading s Outputs source/sink −12 mA/+12 mA on B Port, −32 mA/+64 mA on A Port s Latch-up performance exceeds 500 mA Ordering Code: Order Number 74LVT2245WM 74LVT2245SJ 74LVT2245MSA 74LVT2245MTC 74LVTH2245WM 74LVTH2245SJ 74LVTH2245MSA 74LVTH2245MTC Package Number M20B M20D MSA20...


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