SN74CBTLV16210

SN74CBTLV16210 LOWĆVOLTAGE 20ĆBIT FET BUS SWITCH SCDS042J − DECEMBER 1997 − REVISED JULY 2004 D Member of the Texas Instruments Widebus Family D 5-Ω Switch Connection Between Two Ports D Rail-to-Rail Switching on Data I/O Ports D Ioff Supports Partial-Power-Down Mode Operation description/ordering information The SN74CBTLV16210 provides 20 bits of high-speed bus switching. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as dual 10-bit bus switches with separate output-enable (OE) inputs. It can be used as two 10-bit bus switches or as one 20-bit bus switch. When OE is low, the associated 10-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. DGV OR DL PACKAGE (TOP VIEW) NC 1 1A1 2 1A2 3 1A3 4 1A4 5 1A5 6 1A6 7 GND 8 1A7 9 1A8 10 1A9 11 1A10 12 2A1 13 2A2 14 VCC 15 2A3 16 GND 17 2A4 18 2A5 19 2A6 20 2A7 21 2A8 22 2A9 23 2A10 24 48 1OE 47 2OE 46 1B1 45 1B2 44 1B3 43 1B4 42 1B5 41 GND 40 1B6 39 1B7 38 1B8 37 1B9 36 1B10 35 2B1 34 2B2 33 2B3 32 GND 31 2B4 30 2B5 29 2B6 28 2B7 27 2B8 26 2B9 25 2B10 To ensure the high-impedance state during power up or power down, OE sho...