UM3308 is an 8-channel bidirectional voltage level translator with auto direction sensing and ±15kV ESD protection. It uses two separate configurable power-supply rails and 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. The translator is ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems. It guarantees a data rate of 40Mbps over the entire specified operating voltage range and supports higher data rates up to 100Mbps within specific voltage domains.
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.
| Channel Count | 8 |
|---|---|
| ESD Protection | +15 kV |
| Continuous Output Current | +50 mA |
| Package Type | CSP20 |
| A‑Port Supply Voltage Range (absolute max) | -0.5 V to +4.5 V |
| B‑Port Supply Voltage Range (absolute max) | -0.5 V to +6.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
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).
When OE is low, all outputs are placed in a high‑impedance state.
The device is offered in a CSP20 bump package.