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74LVTH322245G
Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25 Ohm Series Resistors in A Port Outputs
74LVT322245 • 74LVTH322245 Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25Ω Series Resistors in A Port Outputs May 2002 Revised May 2002 74LVT322245 74LVTH322245 Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25Ω Series Resistors in A Port Outputs General Description Features The LVT322245 and LVTH322245 contain thirty-two non-Input and output interface capability to systems at inverting bidirectional buffers with 3-STATE outputs and are 5V V CC intended for bus oriented applications. The device is byte Bushold data inputs eliminate the need for external controlled. Each byte has separate control inputs which pull-up resistors to hold unused inputs (74LVTH322245) can be shorted together for full 32-bit operation. The T/R Also available without bushold feature (74LVT322245) 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 placing them in a high impedance state.Power Up/Power Down high impedance provides glitch-free bus loading The LVT322245 and LVTH322245 are designed with equivalent 25Ω series resistance in both the HIGH andA Port outputs include equivalent series resistance of LOW states on the A Port outputs. This design reduces line 25Ω making external termination resistors unnecessary noise in applications such as memory address drivers, and reducing overshoot and undershoot clock drivers, and bus transceivers/transmitters. A Port outputs source/sink ±12 mA The LVTH322245 data inputs include bushold, eliminating B Port outputs source/sink −32 mA/+64 mA the need for external pull-up resistors to hold unused ESD performance: inputs. Human-body model > 2000V These non-inverting transceivers are designed for low-volt- Machine model > 200V age (3.3V) V applications, but with the capability to pro- CC Charged-device model > 1000V vide a TTL interface to a 5V environment. The LVT322245 and LVTH322245 are fabricated with anPackaged in plastic Fine-Pitch Ball Grid Array (FBGA) advanced BiCMOS technology to achieve high speed operation similar to 5V ABT while maintaining a low power dissipation. Ordering Code: Order Number Package Number Package Description 74LVT322245G BGA96A 96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide (Note 1) (Note 2) (Preliminary) 74LVTH322245G BGA96A 96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide (Note 1) (Note 2) Note 1: Ordering code “G” indicates TRAYS. Note 2: Devices also available in TAPE and REEL. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol © 2002 DS500408
