U74CBTLV3245 Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD Preliminary LOW-VOLTAGE OCTAL FET BUS SWITCH CMOS IC - DESCRIPTION The U74CBTLV3245 provides eight bits of high-speed bus switching in a standard '245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable ( OE ) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports. This device is fully specified for partial-power-down applications using IOFF. The IOFF feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. TSSOP-20 - Features - 5Ω Switch Connection Between Two Ports - Standard ‘245-Type Pinout - Isolation Under Power-Off Conditions - Rail-to-Rail Switching on Data I/O Ports - IOFF Supports Partial-Power-Down Mode Operation - ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74CBTLV3245L-P20-R U74CBTLV3245G-P20-R Package TSSOP-20 Packing Tape Reel U74CBTLV3245G-P20-R (1)Packing Type (2) Package Type (3) Green Package (1) R: Tape Reel (2) P20: TSSOP-20 (3) G: Halogen Free and Lead Free, L: Lead Free - MARKING .unisonic..tw Copyright © 2021 Unisonic Technologies Co., Ltd 1 of...