FXLA0104QFX

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This literature is subject to all applicable copyright laws and is not for resale in any manner. FXLA0104 低压双通道电源4位电压转换器，带可配置电压电源和信号 电平、3态输出和自动方向感测 特性 说明  介于两个电平之间的双向接口： 从1.1V到3.6V      完全可配置： 输入和输出跟踪VCC FXLA104是一款可配置的双电压电源转换器，设计用于两 个逻辑电平之间的单向和双向电压转换。该器件允许的电 压转换范围为最高3.6V，最低1.1V。A端口跟踪VCCA电平， 而B端口跟踪VCCB电平。这就允许在各种电压电平上进行双 向电压转换： 1.2V、1.5V、1.8V、2.5V和3.3V。      控制输入(OE) 参考VCCA电压 无上电顺序要求，任一VCC 可以先行上电； 如果任一VCC处于GND状态，则输出将会切换至3态 断电保护 数据输入的总线保持功能无需上拉电阻，A或B端口上 无需采用上拉电阻； 采用12引脚、1.7mm x 2.0mm UMLP封装 无需方向控制； 该器件将保持在3态状态，只要任意一个VCC=0V，从而允许 任一VCC首先上电。如果取消任一VCC电压，则内部掉电控制 电路会将该器件置于3态模式中。 当为低电平时，OE输入通过将A和B端口置于3态状态下来 禁用A和B端口。OE输入由VCCA供电。 FXLA0104支持双向转换，且无需方向控制引脚。该器件的 两个端口具有自动方向感知功能。任一端口都可以检测输 入信号，并将其作为输出信号传输至其他端口。 在1.8V 和2.5V之间转换时传送率100Mbps； ESD保护超过： - 6kV HBM（根据JESD22-A114和军用标准883e 3015.7） - 2kV CDM (按符合ESD STM 5.3) 应用  移动电话，PDA，数码相机，便携GPS 订购信息 器件编号 FXLA0104QFX © 2011 飞兆半导体公司 FXLA0104 • Rev. 1.0.1 工作温度范围 -40至85°C 顶标 XU 封装 12引脚、1.7mm x 2.0mm超薄模塑无铅封装(UMLP) 包装方法 每卷5000装 卷带和卷盘 www.fairchildsemi.com FXLA0104 — 低压双电源4位电压转换器 November 2013 OE VCCA 1 3 A0 11 VCCB 2 4 10 B0 A1 3 5 9 B1 A2 4 6 8 B2 A3 5 7 B3 12 6 GND 图1. 12引脚UMLP（俯视图） FXLA0104 — 低压双电源4位电压转换器 引脚布局 引脚说明 引脚号 名称 1 VCCA A端电源 2 A0 A端输入或3态输出 3 A1 A端输入或3态输出 4 A2 A端输入或3态输出 5 A3 A端输入或3态输出 6 GND 接地 7 B3 B端输入或3态输出 8 B2 B端输入或3态输出 9 B1 B端输入或3态输出 10 B0 B端输入或3态输出 11 VCCB B端电源 12 OE 输出使能输入 © 2011 飞兆半导体公司 FXLA0104 • Rev. 1.0.1 说明 www.fairchildsemi.com 2 VCCA VCCB OE A0 – A3 B0 – B3 FXLA0104 — 低压双电源4位电压转换器 功能框图 图2. 功能框图 功能表 控制 输出 OE © 2011 飞兆半导体公司 FXLA0104 • Rev. 1.0.1 低逻辑电平 3态 高逻辑电平 正常运行 www.fairchildsemi.com 3 应力超过绝对最大额定值，可能会损坏器件。在超出推荐的工作条件的情况下，该器件可能无法正常工作，所以不建议 让器件在这些条件下长期工作。此外，过度暴露在高于推荐的工作条件下，会影响器件的可靠性。绝对最大额定值仅是 应力规格值。 符号 参数 VCC 电源电压 VI DC输入电压 VO 输出电压 (2) IIK 直流输入二极管电流 IOK DC输出二极管电流 IOH/IOL DC输出源/灌电流 条件 最小值 最大值 VCCA -0.5 4.6 VCCB -0.5 4.6 I/O端口A和B -0.5 4.6 控制输入(OE) -0.5 4.6 输出3态 -0.5 4.6 输出有效(An) -0.5 VCCA +0.5 输出有效(Bn) -0.5 VCCB +0.5 VIN