Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Low-power dual-SIM analog switch |
| Switch structure | Dual 4-pole/2-throw signal-and-supply multiplexer |
| Supply range | 1.65 V to 4.3 V |
| Data-path RON | 6 Ω typical |
| SIM-supply-path RON | 0.4 Ω typical |
| Data-path capacitance | 10 pF typical |
| Bandwidth | >160 MHz |
| Package | 16-lead UMLP/UQFN, 1.8 mm × 2.6 mm |
| Temperature | −40°C to +85°C |
Product Overview
FSA2567UMX is an onsemi dual-SIM analog switch that routes SIM data, reset, clock and supply signals between a common interface and one of two SIM-card ports. The supply path is optimized separately from the logic/data paths, providing much lower on resistance so SIM-card supply drop remains small.
The UMX order code uses the compact 16-lead 1.8 × 2.6 mm UMLP package, making the device suitable for dense portable-system layouts where two SIM interfaces must share one baseband connection.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| VCC | 1.65 V to 4.3 V |
| Data-path RON | 6 Ω typical |
| SIM-supply-path RON | 0.4 Ω typical |
| Data-path CON | 10 pF typical |
| −3 dB bandwidth | >160 MHz |
| Quiescent current | 1 µA maximum class |
| ESD | 3 kV device I/O class; higher rating on power/ground |
| Package | 16-lead UMLP, 1.8 × 2.6 mm |
| Packing | 5000-piece tape and reel for FSA2567UMX |
Dual-SIM Integration Considerations
The supply pin and data channels have different electrical priorities: the VSIM switch minimizes DC voltage drop, while DAT/RST/CLK channels are optimized for signal integrity and capacitance. Layout should keep the switched SIM paths short and maintain the intended power sequencing.
Manufacturer Resource
Quality & Verification Support
Exact UMX suffix, package, top marking, reel quantity and lot/date information can be checked before shipment.
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Request FSA2567UMX exactly and include quantity, date-code and traceability requirements.
