SN74CBTLV3857 - 具有内部下拉电阻的低电压 10 位 FET 总线开关

SN74CBTLV3857是TI德州仪器公司的一款数字开关产品，SN74CBTLV3857是具有内部下拉电阻的低电压 10 位 FET 总线开关，本站介绍了SN74CBTLV3857的封装应用图解、特点和优点、功能等，并给出了与SN74CBTLV3857相关的TI元器件型号供参考。

SN74CBTLV3857 - 具有内部下拉电阻的低电压 10 位 FET 总线开关 - 数字开关 - 信号开关 - 德州仪器

产品描述

This 10-bit FET bus switch is designed for 3-V to 3.6-V VCC operation and SSTL_2 output-enable (OE\) input levels.

When OE\ is low, the 10-bit bus 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. There are 10-k pulldown resistors to ground on the B port.

The FET switch on-state resistance is designed to replace the series terminating resistor in the SSTL_2 data path.

This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.

产品特性

Enable Signal Is SSTL_2 Compatible
Flow-Through Architecture Optimizes PCB Layout
Designed for Use With 200 Mbit/s Double Data-Rate (DDR) SDRAM Applications
Switch On-State Resistance Is Designed to Eliminate Series Resistor to DDR SDRAM
Internal 10-k Pulldown Resistors to Ground on B Port
Internal 50-k Pullup Resistor on Output-Enable Input
Rail-to-Rail Switching on Data I/O Ports
Ioff Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

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