Key facts
- Manuals
- 2
- Languages
- EN
- Last added
- 2012-01-04
Featured Union manuals

Union UM3204 Datasheet
The UM3204 is a 4‑bit bidirectional voltage‑level translator designed for open‑drain and push‑pull applications. It shifts logic levels between low‑voltage ASIC/PLD interfaces (1.65 V‑3.6 V) and higher‑voltage systems (2.3 V‑5.5 V), providing up to ±15 kV ESD protection on the high‑voltage side. The device operates without a direction‑control signal and includes three‑state outputs that reduce supply current when OE is low.
Key features include a supply voltage range of 1.65 V to 3.6 V for the A‑port and 2.3 V to 5.5 V for the B‑port, continuous output current of +50 mA, and a maximum push‑pull data rate of 24 Mbps. The translator is available in 1.9 × 1.4 mm CSP12 and 3.5 × 3.5 mm QFN14 packages, with optional tape‑and‑reel packaging for volume production.
Covers: General Description · Pin Description · Ordering Information · Absolute Maximum Ratings · Recommended Operating Conditions · Electrical Characteristics

Union UM3308 Level Translator Datasheet
The UM3308 is an 8‑channel bidirectional voltage level translator with auto‑direction sensing and +15kV ESD protection. It supports multiple voltage domains, allowing translation between 1.2 V‑3.6 V (A port) and 1.65 V‑5.5 V (B port) and operates up to 100 Mbps under recommended conditions.
The document details pin assignments, absolute maximum ratings, recommended operating conditions, switching characteristics, and package information for the CSP20 bump package. It also includes ordering information and an important notice about the document’s accuracy.
Covers: General Description · Pin Configurations · Absolute Maximum Ratings · Recommended Operating Conditions · Electrical Characteristics · Switching Characteristics
Latest Union manuals
Union UM3204 Datasheet
Datasheet 12 pages · 434 KB · ENThe Union UM3204 is a 4‑bit bidirectional voltage‑level translator with ±15 kV ESD protection, offered in CSP12 and QFN14 packages.
Union UM3308 Level Translator Datasheet
Datasheet 12 pages · 344 KB · ENThe Union UM3308 datasheet provides specifications, pin configurations, and electrical characteristics for the 8‑channel bidirectional voltage‑level translator.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in Union manuals
What is the supply voltage range for the A‑port?
The A‑port (Veca) operates from 1.65 V to 3.6 V.
From: Union UM3204 Datasheet
How do you disable the UM3204 outputs?
Pull the OE input low; this places all I/Os in a high‑impedance (Hi‑Z) state.
From: Union UM3204 Datasheet
What supply voltage ranges are supported for the A and B ports?
The A‑port can handle -0.5 V to +4.5 V (absolute max) and the B‑port -0.5 V to +6.5 V (absolute max).
How is the output‑enable (OE) pin used?
When OE is low, all outputs are placed in a high‑impedance state.
