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SN74CBTK6800 Series

5-V, 1:1 (SPST), 10-channel general-purpose FET bus switch with active-clamp undershoot protection

Manufacturer: Texas Instruments

Catalog

5-V, 1:1 (SPST), 10-channel general-purpose FET bus switch with active-clamp undershoot protection

Key Features

5-Switch Connection Between Two PortsTTL-Compatible Input LevelsPower Off Disables Outputs, Permitting Live InsertionOutputs Are Precharged by Bias Voltage to Minimize Signal Distortion During Live InsertionActive-Clamp Undershoot-Protection Circuit on the I/Os Clamps Undershoots Down to \x962 VLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)5-Switch Connection Between Two PortsTTL-Compatible Input LevelsPower Off Disables Outputs, Permitting Live InsertionOutputs Are Precharged by Bias Voltage to Minimize Signal Distortion During Live InsertionActive-Clamp Undershoot-Protection Circuit on the I/Os Clamps Undershoots Down to \x962 VLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)

Description

AI
The SN74CBTK6800 device provides ten bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows bidirectional connections to be made while adding near-zero propagation delay. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise. The A and B ports have an active-clamp undershoot-protection circuit. When there is an undershoot, the active-clamp circuit is enabled and current from VCCis supplied to clamp the output, preventing the pass transistor from turning on. The SN74CBTK6800 is organized as one 10-bit switch with a single enable (ON\) input. When ON\ is low, the switch is on, and port A is connected to port B. When ON\ is high, the switch between port A and port B is open. When ON\ is high or VCCis 0 V, B port is precharged to BIASV through the equivalent of a 10-kresistor. The SN74CBTK6800 device provides ten bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows bidirectional connections to be made while adding near-zero propagation delay. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise. The A and B ports have an active-clamp undershoot-protection circuit. When there is an undershoot, the active-clamp circuit is enabled and current from VCCis supplied to clamp the output, preventing the pass transistor from turning on. The SN74CBTK6800 is organized as one 10-bit switch with a single enable (ON\) input. When ON\ is low, the switch is on, and port A is connected to port B. When ON\ is high, the switch between port A and port B is open. When ON\ is high or VCCis 0 V, B port is precharged to BIASV through the equivalent of a 10-kresistor.