UM3301中文资料具有自动方向检测的1位双向电压电平转换器数据手册Union-IC规格书

描述 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 VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts 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 VCCA.

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.



 

Features

 

- 1.2V to 3.6V on A Port and 1.65V to 5.5V on B Port (VCCA ≤VCCB)

- VCC Isolation Feature – If Either VCC Input is at GND, All Outputs are in the High-Impedance State

- OE Input Circuit Referenced to VCCA

- Low Power Consumption

- Latch-Up Performance Exceeds 100mA

- ±5kV ESD Protection on B Ports

 

Typical Application Circuit

 

 

Applications

 

- Low-Voltage ASIC Level Translation

- Cell-Phone Cradles

- Portable POS Systems

- Portable Communication Devices

- Low-Cost Serial Interfaces

- Cell-Phones

- GPS

- Telecommunications Equipment

特性 Features

- 1.2V to 3.6V on A Port and 1.65V to 5.5V on B Port (VCCA ≤VCCB)
- VCC Isolation Feature – If Either VCC Input is at GND, All Outputs are in the High-Impedance State
- OE Input Circuit Referenced to VCCA
- Low Power Consumption
- Latch-Up Performance Exceeds 100mA
- ±5kV ESD Protection on B Ports
 
Typical Application Circuit
 
 
Applications
 
- Low-Voltage ASIC Level Translation
- Cell-Phone Cradles
- Portable POS Systems
- Portable Communication Devices
- Low-Cost Serial Interfaces
- Cell-Phones
- GPS
- Telecommunications Equipment

应用 Application

- Low-Voltage ASIC Level Translation
- Cell-Phone Cradles
- Portable POS Systems
- Portable Communication Devices
- Low-Cost Serial Interfaces
- Cell-Phones
- GPS
- Telecommunications Equipment