ACTIVE
Part Number
UM3284
Description
4-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Application
Status
ACTIVE
Bits (#)
4
Max Data Rate (Mbps)
60
Direction Control
Auto
VCCA(Min) (V)
1.2
VCCA(Max) (V)
3.6
VCCB(Min) (V)
1.65
VCCB(Max) (V)
5.5
Output Type
Push-Pull/Open-Drain
Operating Temperature Range (℃)
-40 to 85
Package
QFN12 1.7x2.0, QFN12 1.8x1.8, QFN14 3.5x3.5, TSSOP14
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, VCCB and VCCA, set the logic levels on either side of the device. A low-voltage logic signal present on the VCCA side of the device appears as a low-voltage logic signal on the VCCB 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 (VCCA↔VCCB) on any single data line. The UM3284 accepts VCCA from 1.2V to 3.6V and VCCB 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 OE input circuit is supplied by VCCA. The UM3284 features ±7kV ESD protection on the VCCB side for greater protection in applications that route signals externally.
- 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 ( VCCA≤VCCB )
- No Direction-Control Signal Needed
- No Power-Supply Sequencing Required VCCA or VCCB 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 |
|---|---|---|---|
| UM3284QS | QFN14 3.5×3.5 | UM3284QS | 3000pcs/13Inch Tape & Reel |
| UM3284QA | QFN12 1.7×2.0 | APA | 3000pcs/7Inch Tape & Reel |
| UM3284UE | TSSOP14 | UM3284UE | 3000pcs/13Inch Tape & Reel |
| UM3284QV | QFN12 1.8×1.8 | GA | 3000pcs/7Inch Tape & Reel |
