Datasheet > UM3301DA

UM3301DA

更新时间： 2024-10-31 01:19:35

品牌	Logo	应用领域
英联电子 - UNIONSEMI		/
页数	文件大小	规格书
13页	371K
描述
1-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing

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UM3301DA 数据手册

UM3301

1-Bit Bidirectional Voltage-Level Translator

with Auto Direction Sensing

UM3301B SOT563

UM3301DA DFN6 1.45×1.0

General Description

The UM3301B/UM3301DA series is one channel level translator with auto direction sensing. This

1-channel non-inverting translator uses two separate configurable power-supply rails. The A port

is designed to track V_CCA. V_CCAaccepts any supply voltage from 1.2V to 3.6V. The B port is

designed to track V_CCB. V_CCBaccepts any supply voltage from 1.65V to 5.5V. This allows for

universal low-voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V,

and 5V voltage nodes. Both I/O ports are auto-sensing, thus no direction control pin is required,

making it ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems.

The UM3301B/UM3301DA operates at a guaranteed data rate of 20Mbps over the entire specified

operating voltage range. Within specific voltage domains, higher data rates are up to 100Mbps.

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. The

UM3301B/UM3301DA is designed so that the OE input circuit is designed to track V_CCA

To ensure the high-impedance state during power up or power down, OE should be tied to GND

through a pull down resistor, the minimum value of the resistor is determined by the

current-sourcing capability of the driver.

The UM3301DA is available in 1.45mm×1.0mm DFN6 package while the UM3301B is packaged

in a SOT563 package.

Applications

Features



Low-Voltage ASIC Level Translation

Cell-Phone Cradles

Portable POS Systems

Portable Communication Devices

Low-Cost Serial Interfaces

Cell-Phones



1.2V to 3.6V on A Port and 1.65V to 5.5V

on B Port (V_CCA≤V_CCB

V_CCIsolation Feature–If Either V_CCInput is

at GND, All Outputs are in the

High-Impedance State

OE Input Circuit Referenced to V_CCA

Low Power Consumption

Latch-up Performance Exceeds 100mA

±5kV ESD Protection on B Ports

)



GPS

Telecommunications Equipment

________________________________________________________________________

http://www.union-ic.com Rev.02 Jan.2015 1/13

12 3 4 5 6 7...13

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