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LVT162245
Low Voltage 16-Bit Transceiver with 3-STATE Outputs and 25 Series Resistors in A Port Outputs
74LVT162245 • 74LVTH162245 Low Voltage 16-Bit Transceiver with 3-STATE Outputs and 25Ω Series Resistors in A Port Outputs January 1999 Revised November 1999 74LVT162245 74LVTH162245 Low Voltage 16-Bit Transceiver with 3-STATE Outputs and 25Ω Series Resistors in A Port Outputs General Description Features The LVT162245 and LVTH162245 contains sixteen non-Input and output interface capability to systems at 5V inverting bidirectional buffers with 3-STATE outputs and is V CC intended for bus oriented applications. The device is byte Bushold data inputs eliminate the need for external pull- controlled. Each byte has separate control inputs which up resistors to hold unused inputs (74LVTH162245), can be shorted together for full 16-bit operation. The T/R also available without bushold feature (74LVT162245). inputs determine the direction of data flow through the Live insertion/extraction permitted device. The OE inputs disable both the A and B ports by Power Up/Down high impedance provides glitch-free placing them in a high impedance state. bus loading The LVT162245 and LVTH162245 are designed with A Port outputs include equivalent series resistance of equivalent 25Ω series resistance in both the HIGH and 25Ω making external termination resistors unnecessary LOW states on the A Port outputs. This design reduces line and reducing overshoot and undershoot noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters.A Port outputs source/sink ±12 mA. B Port outputs source/sink −32 mA/+64 mA The LVTH162245 data inputs include bushold, eliminating the need for external pull-up resistors to hold unusedFunctionally compatible with the 74 series 162245 inputs. Latch-up performance exceeds 500 mA These non-inverting transceivers are designed for low-volt- age (3.3V) V applications, but with the capability to pro- CC vide a TTL interface to a 5V environment. The LVT162245 and LVTH162245 are fabricated with an advanced BiC- MOS technology to achieve high speed operation similar to 5V ABT while maintaining a low power dissipation. Ordering Code: Package Order Number Package Description Number 74LVT162245MEA MS48A 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide (Note 1) 74LVT162245MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide (Note 1) 74LVTH162245MEA MS48A 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide [TUBE] 74LVTH162245MEX MS48A 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide (Note 2) [TAPE and REEL] 74LVTH162245MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide [TUBE] 74LVTH162245MTX MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide (Note 2) [TAPE and REEL] Note 1: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Note 2: Use this Order Number to receive devices in Tape and Reel. © 1999 DS012446
