The UM3284 is 4-channel ESD-protected level translator provides the level shifting necessary to allow data transfer in a multi-voltage system. Externally applied voltages, V_CCB and V_CCA, set the logic levels on either side of the device. A low-voltage logic signal present on the V_CCA side of the device appears as a low-voltage logic signal on the V_CCB side of the device, and vice-versa. The UM3284 bidi­rectional level translator utilizes a transmission-gate ­based design to allow data translation in either direction (V_CCA↔V_CCB) on any single data line. The UM3284 accepts V_CCA from +1.2V to +3.6V and V_CCB from +1.65V to +5.5V, making it ideal for data transfer between low-voltage ASICs / PLDs and higher voltage systems.

The UM3284 enters a three-state output mode to reduce supply current when output enable (OE) is low. The UM3284 is designed so that the OE input circuit is supplied by V_CCA. ±7kV ESD protection on the V_CCB side for greater protection in applications that route sig­nals externally.

The UM3284QA is available in QFN12 1.7×2.0 package. 

-Max Data Rates:

  60Mbps(Push Pull)

  2Mbps(Open Drain)                        

-1.2V to 3.6V on A port and 1.65V to 5.5V on B port(V_CCA≤V_CCB)

-No Direction-Control Signal Needed

-No Power-Supply Sequencing Required V_CCA or V_CCB Can Be Ramped First

-Low Power Consumption

-±7kV ESD Protection on B port

-Latch-Up Performance Exceeds 200mA 

-Handsets

-Smart phones

-Tablets

-Desktop PCs

Part Number	Packaging Type	Marking Code	Shipping Qty
UM3284QA	QFN12 1.7×2.0	APA	3000pcs/7Inch Tape & Reel