74LVC1T45中文资料Single-gate数据手册Diodes规格书

描述 Description

The 74LVC1T45 is a single bit, dual supply translating transceiver with 3-state outputs suitable for transmitting a single logic bit across different voltage domains. The A input/output pin is designed to track VCCA while the B input/output tracks VCCB. This arrangement allows for universal low-voltage translation between any voltages from 1.65V to 5.5V. The Direction pin (DIR) controls the direction of the transceiver and in a logic voltage related to VCCA. When a high logic level is applied to DIR the A pin becomes an input and the B pin becomes the output. Conversely the roles of A and B are reversed when DIR is asserted low. The 3-state feature occurs when either of the power supply voltages are zero. This is also an Ioff feature and allows for the output to remain in a high impedance state with both power supplies at 0V preventing and damaging backflow currents and providing power down electrical isolation up to 5.5V as not to interfere with any logic activity on pin A or B.

特性 Features

•Wide Supply Voltage Range:
•VCC(A): from 1.65V to 5.5V
•VCC(B): from 1.65V to 5.5V
•± 24mA Output Drive at 3.3V
•CMOS low power consumption 16μA maximum ICC
•High Noise Immunity -- (100mV hysteresis typical)
•IOFF Supports Partial-Power-Down Mode Operation
•IOFF control°C by either VCC being at 0 V
•Inputs accept up to 5.5V
•ESD Protection Exceeds JESD 22
•200-V Machine Model (A115-A)
•2000-V Human Body Model (A114-A)
•1000 V Charged Device Model ( C101)
•Latch-Up Exceeds 100mA per JESD 78, Class II
•X2-DFN1409-6 package designed as a direct replacement for chip scale packaging.
•Totally Lead-Free & Fully RoHS Compliant
•Halogen and Antimony Free. “Green” Device

应用 Application

•Voltage Level Translation Well suited to join logic types operating at different voltages
•Power Down Signal Isolation If either voltage domain is turned off the signal is isolated and there is no loading on signal lines
•Wide array of products such as: - Cell Phones, Tablets, E-Readers - PCs, notebooks, netbooks, ultrabooks - Networking, routers, gateways - Computer peripherals, hard drives, CD/DVD ROM - TV, DVD, DVR, set top box - Personal Navigation / GPS - MP3 players ,Cameras, Video Recorders

简介

74LVC1T45属于集成电路（IC）的转换器电平移位器。由制造生产的74LVC1T45转换器，电平移位器逻辑转换器或电平移位器 IC 可用于在数字逻辑设备之间传递信息，这些设备可在不同/不兼容的供电电压下工作，或可实现不同的信令方式。例如，可以将需要 5 V 电源的数字输出传感器连接到具有 3.3 V I/O 电源的 FPGA，或者在 CMOS 或 TTL 等单端信令方式与 PECL 或 LVDS 等差分技术之间进行转换。