FSTD3125MTC

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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. 4Ω Switch Connection between Two Ports Minimal Propagation Delay through the Switch Low ICC Zero Bounce in Flow-through Mode Control Inputs Compatible with TTL Level TruTranslation Voltage Translation from 5.0V Inputs to 3.3V Outputs The device is organized as four one-bit switches with separate /OE inputs. When /OE is LOW, the switch is ON and port A is connected to port B. When /OE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. Ordering Information Part Number Operating Temperature Range FSTD3125MTCX -40 to 85°C Packing Method Package 14-Lead, Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4mm Wide Tape and Reel /OE1 1 1A 2 /OE2 2A /OE3 3A /OE4 4A 3 1B 6 2B 8 3B 4 5 10 9 13 12 11 4B Figure 1. Logic Diagram © 2001 Fairchild Semiconductor Corporation FSTD3125 • Rev. 1.0.3 www.fairchildsemi.com FSTD3125 — 4-Bit Bus Switch with Level Shifting May 2012 FSTD3125 — 4-Bit Bus Switch with Level Shifting Pin Configuration /OE1 1 14 VCC 1A 2 13 /OE4 1B 3 12 4A /OE2 4 11 4B 2A 5 10 /OE3 2B 6 9 3A GND 7 8 3B Figure 2. Pin Assignments Pin Descriptions Pin # Pin Names Description 1, 4, 10, 13 /OE1, /OE2, /OE3, /OE4 Bus Switch Enables 2, 5, 9, 12 1A, 2A, 3A, 4A Bus A 3, 6, 8, 11 1B, 2B, 3B, 4B Bus B 14 VCC Supply Voltage 7 GND Ground Truth Table Inputs Inputs/Outputs /OE A, B LOW A=B HIGH High Impedance © 2001 Fairchild Semiconductor Corporation FST3D125 • Rev. 1.0.3 www.fairchildsemi.com 2 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit -0.5 7.0 V 7.0 V VCC Supply Voltage VS DC Switch Voltage -0.5 VIN (1) DC Input Voltage -0.5 7.0 V IIK DC Input Diode Current, VIN