74LVT2245 ,Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25-Ohm Series Resistors in the B Port Outputsapplications. The Transmit/
74LVT2245
Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25-Ohm Series Resistors in the B Port Outputs
74LVT2245 • 74LVTH2245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25Ω Series Resistors in the B Port Outputs November 1999 Revised November 2000 74LVT2245 74LVTH2245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25Ω Series Resistors in the B Port Outputs General Description Features The LVT2245 and LVTH2245 contain eight non-invertingInput and output interface capability to systems at bidirectional buffers with 3-STATE outputs and are 5V V CC intended for bus-oriented applications. The Transmit/ Equivalent 25Ω series resistor on B Port outputs Receive (T/R) input determines the direction of data flow Bushold data inputs eliminate the need for external through the bidirectional transceiver. Transmit (active- pull-up resistors to hold unused inputs (74LVTH2245), HIGH) enables data from A Ports to B Ports; Receive also available without bushold feature (74LVT2245) (active-LOW) enables data from B Ports to A Ports. The Live insertion/extraction permitted Output Enable input, when HIGH, disables both A and B Ports by placing them in a high impedance state. ThePower Up/Down high impedance provides glitch-free equivalent 25Ω-series resistor in the B Port helps reduce bus loading output overshoot and undershoot. Outputs source/sink −12 mA/+12 mA on B Port, The LVTH2245 data inputs include bushold, eliminating the −32 mA/+64 mA on A Port need for external pull-up resistors to hold unused inputs. Latch-up performance exceeds 500 mA These transceivers are designed for low voltage (3.3V) ESD performance: V applications, but with the capability to provide a TTL CC Human-body model > 2000V interface to a 5V environment. The LVT2245 and Machine model > 200V LVTH2245 are fabricated with an advanced BiCMOS tech- Charged-device model > 1000V nology to achieve high speed operation similar to 5V ABT while maintaining low power dissipation. Ordering Code: Order Number Package Number Package Description 74LVT2245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74LVT2245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVT2245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74LVT2245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74LVTH2245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74LVTH2245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVTH2245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74LVTH2245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. © 2000 DS012173
