FSTUD16211 Datasheet | Fairchild Semiconductor

FSTUD16211 24-Bit Bus Switch with - 2V Undershoot Protection and Level Shifting June 2000 Revised August 2001 FSTUD16211 24-Bit Bus Switch with - 2V Undershoot Protection and Level Shifting General Description The Fairchild Switch FSTUD16211 provides 24-bits of high-speed CMOS TTL-patible bus switching. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. A diode to VCC has been integrated into the circuit to allow for level shifting between 5V inputs and 3.3V outputs. The device is organized as a 12-bit or 24-bit bus switch. When OE1 is LOW, the switch is ON and Port 1A is connected to Port 1B. When OE2 is LOW, Port 2A is connected to Port 2B. When OE1/2 is HIGH, a high impedance state exists between the A and B Ports. The A and B Ports have “undershoot hardened” circuit protection to support an extended range to 2.0V below ground. Fairchild’s integrated Undershoot Hardened Circuit (UHC) senses undershoot at the I/O’s, and responds by preventing voltage differentials from developing and turning on the switch. Features s Undershoot hardened to - 2V (A and B Ports) s Voltage level shifting s 4Ω switch connection between two ports s Minimal propagation delay through the switch s Low l CC s Zero bounce in flow-through mode s Control inputs patible with TTL level s See Applications Note AN-5008 for details s Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA) (Preliminary) Ordering Code: Order Number FSTUD16211GX (Note 1) FSTUD16211MTD Package Number BGA54A (Preliminary) MTD56 Package Description 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide [TAPE and REEL] 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Note 1: BGA package available in Tape and Reel only. Logic Diagram UHC is a trademark of...