Overview The HMC253AQS24E is a lowcost nonreflective RF switch designed for wideband operation from DC to 2.5 GHz. It is provided in a 24pin QSOP package and supports SP6T configurations for flexible RF routing. Key benefits Wideband coverage from DC to 2.5 GHz enables multiple applications with a single device. Nonreflective design helps maintain signal integrity across the operating range. Low BOM and cost, suitable for budgetconscious designs without sacrificing performance. Simple control with a single positive bias and true TTL/CMOS compatibility simplifies the interface to digital logic. Integrated decoding reduces external logic and component count. Control, decoding, and interface An integrated 3:6 decoder handles path selection, requiring only three control lines plus a positive bias to select each path. TTL/CMOS compatibility ensures straightforward interfacing with common logic families. Positive bias operation supports simple biasing schemes and power supply design. Package, compatibility, and configuration 24pin QSOP package for compact board footprint. Designed to be a dropin option for RF switching needs in compact layouts. The device supports SP6T routing with a simplified control scheme due to the embedded decoder. The part can be used to discrete SP4T and SPDT MMIC switches and their accompanying logic drivers in multiple configurations. Replacement and configurability The HMC253AQS24E SP8T variant can SP4T and SPDT MMIC switches and logic drivers in multiple configurations, enabling flexible redesigns or upgrades within the same platform. Use scenarios Test and measurement benches: Use the switch to route RF signals between multiple ports in a test setup, reducing control complexity with three control lines and a positive bias. Wireless infrastructure and RF frontends: Integrate into base stations, repeaters, or radar/communication frontends to switch between transmit and receive paths or multiple antenna ports over DC to 2.5 GHz. MMICbased modules and configurable frontends: Employ as a flexible routing element to reduce the number of external drivers and simplify boardlevel wiring when multiple path configurations are needed. Performance and practical considerations Wide operating bandwidth supports diverse applications without needing multiple devices for different bands. The combination of nonreflective behavior and integrated decoding contributes to reliable RF performance with minimal external support circuitry. The device's positivebias, TTL/CMOScompatible control simplifies integration with common microcontrollers and logic devices, aiding quick prototyping and robust production designs. Notes on integration Ensure proper biasing and input/output port layout to maintain isolation and minimize unwanted coupling. Plan for heat and power budget consistent with the device's bias requirements and system design. This description preserves the product identity, model naming, and functional attributes while presenting the information in a clear, customerfacing format that emphasizes practical benefits, compatibility, and realworld use cases.