FSTD16244

Preliminary FSTD16244 16-Bit Bus Switch with Level Shifting (Preliminary) November 2001 Revised November 2001 FSTD16244 16-Bit Bus Switch with Level Shifting (Preliminary) General Description The Fairchild Switch FSTD16244 provides 16-bits of highspeed CMOS TTL-compatible 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 16-bit switch. There are four 4-bit switches with separate output enable inputs. When OE is LOW, the switch in ON and Port A is connected to Port B. When OE is HIGH, the switch OFF and a high impedance state exists between the A and B Ports. Features I 4Ω switch connection between two ports. I Minimal propagation delay through the switch. I Low lCC. I Zero bounce in flow-through mode. I Control inputs compatible with TTL level. I TruTranslation voltage translation from 5.0V inputs to 3.3V outputs Ordering Code: Order Number FSTD16244MTD Package Number MTD48 Package Description 48-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. TruTranslation is trademark of Fairchild Semiconductor Corporation. © 2001 Fairchild Semiconductor Corporation DS500693 www.fairchild...