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" /> UM3304QS-电平转换器-接口-英联产品-英联
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UM3304QS
具有自动方向检测和±4kV ESD保护的4位双向电压电平转换器
Datasheet Reliability Report Package Information Order Sample  
Key Specifications
Part Number Description Status VCCA(Min)(V) VCCA(Max)(V) VCCB(Min)(V) VCCB(Max)(V) Max Data Rate(Mbps) No. of Bits Operating Temperature Range(℃) Pin/Package EV Kit Available?
UM3304QS 具有自动方向检测和±4kV ESD保护的4位双向电压电平转换器 ACTIVE 1.2 3.6 1.65 5.5 100 4 -40 to 85 14/QFN 3.5×3.5 Y
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Product Description  

UM3304/UM3304QS/UM3304QT/UM3304QA/UM3304UE is quad channel level translator with auto direction sensing and ±4kV ESD protection. This 4-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 pin is required, making it ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems.
The UM3304/UM3304QS/UM3304QT/UM3304QA/UM3304UE 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 UM3304/UM3304QS/UM3304QT/UM3304QA/UM3304UE 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 UM3304 is a quad level translator available in 1.90mm×1.40mm CSP12 bump package, the UM3304QS is packaged in a 3.50mm×3.50mm QFN14 package, the UM3304QT is packaged in a 2.60mm×1.80mm QFN16 package, the UM3304QA is packaged in a 1.70mm×2.00mm QFN12 package and the UM3304UE is packaged in TSSOP14 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
- ±4kV 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
 
Pin Configurations   

                          (Top View)

                                  UM3304QS

Ordering Information

Part Number
Packaging Type
Marking Code
Shipping Qty
UM3304QS
QFN14 3.5×3.5
UM3304QS
3000pcs/13Inch
Tape & Reel

 
 
Application Notes
微处理器超长启动周期中的外部看门狗管理方案v2.pdf
利用3.3V供电RS485接口实现远距离数据通信.pdf
高速低电源电压逻辑电平转换电路.pdf
超低功耗LDO线性稳压器.pdf
I2C-BUS电平转换芯片在安防产品的应用.pdf
0201超小封装ESD保护器件.pdf
Analog Switch Permits Port Sharing in Portable Equipment.pdf
Balanced Modulator Demodulator Employing UM4684.pdf
Level Shifter for High Speed and Wide Voltage Range Interface.pdf
Low Resistance Analog Switches Permit Speaker Switching in Audio Devices.pdf
Low-Icct Analog Switches for Ultra-Portable Designs.pdf
Selecting the Right CMOS Analog Switch.pdf
Product Selection Guide
Interface and System Interconnect Selection Guide.pdf
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