SN74CBTK32245是TI公司的一款数字开关产品，SN74CBTK32245是具有有源钳位下冲保护电路的 32 位 FET 总线开关，本页介绍了SN74CBTK32245的产品说明、应用、特性等，并给出了与SN74CBTK32245相关的TI元器件型号供参考。
SN74CBTK32245 - 具有有源钳位下冲保护电路的 32 位 FET 总线开关 - 数字开关 - 信号开关 - TI公司（Texas Instruments，德州仪器）
The SN74CBTK32245 device provides 32 bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.
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 VCC is supplied to clamp the output, preventing the pass transistor from turning on.
The device is organized as four 8-bit bus switches, two 16-bit bus switches, or one 32-bit bus switch. When output-enable (OE)\ input is low, the 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 circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
- Member of Texas Instruments' Widebus+™ Family
- 5- Switch Connection Between Two Ports
- TTL-Compatible Input Levels
- Ioff Supports Partial-Power-Down Mode Operation
- Active-Clamp Undershoot-Protection Circuit on the I/Os Clamps Undershoots up to –2 V
- Flow-Through Architecture Optimizes PCB Layout
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
Widebus+ is a trademark of Texas Instruments.
