Communication modules are the core of digital infrastructure, covering wireless routers, CPEs, optical modems, Wi‑Fi/Bluetooth modules, 5G small modules and other product categories. Driven by 5G, Wi‑Fi 6/6E, Bluetooth 5.x and LE Audio technologies, the industry is rapidly upgrading toward high‑speed, low‑latency, miniaturized, low‑power and high‑integration designs, imposing strict requirements on storage bandwidth, size, power consumption and stability.
As an industrial‑grade QSPI
PSRAM from Taiwan‑based CascadeTeq, the
CSS6404LS‑LI perfectly meets design requirements for communication modules with high performance and high integration. Supporting a 133 MHz high‑speed QSPI interface, it delivers a data rate of 532 Mbps in QPI mode, satisfying high‑throughput caching demands for routers, CPEs and 5G modules while eliminating system bottlenecks. Its microamp‑level low power consumption (7 mA operating, 250 μA standby, 100 μA under Halfsleep™ mode) effectively reduces overall device heat generation and energy consumption, improving long‑term operational stability.
Boasting an ultra‑compact 3×2 mm USON‑8 package and an 8‑pin simplified design, it greatly saves PCB space, ideal for highly integrated applications such as 5G small modules and Wi‑Fi/Bluetooth modules. Featuring standard SPI/QPI interfaces and 3.3 V single‑supply operation, it enables simple circuit design and significantly shortens module development cycles.
In practical applications, the CSS6404LS‑LI is widely deployed in:
Wireless Routers / CPEs: Stores firmware, protocol stacks and routing tables to support fast boot and OTA upgrades;
Optical Modems: Stores configuration and authentication data to ensure stable network response;
Wi‑Fi / Bluetooth Modules: Enables compact size and low power consumption for slim‑profile terminals with extended battery life;
5G Small Modules: Supports protocol stack operation, caching and high‑speed data exchange to enable miniaturized high‑performance designs.
Technically, the chip supports linear / 32‑byte dual burst modes for flexible switching based on packet size. Optimized QSPI signal‑line layout and timing matching ensure high‑speed signal integrity. Multiple low‑power modes, combined with thermal design, guarantee stable long‑term operation.
Against trends of widespread 5G adoption, Wi‑Fi 7 evolution, multi‑mode integrated design and heightened security requirements, the CSS6404L leads storage solutions for communication modules with its strengths of high speed, compact size, low power consumption and easy integration. Engineers can achieve optimal balance of performance, power and form factor to meet stringent requirements of next‑generation communication devices.
As an officially authorized distributor of CascadeTeq (Taiwan), Shenzhen Mandu Technology Co., Ltd. provides CSS6404L customers with solution design, high‑speed debugging, power‑consumption optimization and stable in‑stock supply, supporting rapid mass production and long‑term reliable delivery of communication module projects.
For samples, datasheets, low‑power solution details or technical support, please contact us via the following channels:
Hotline: 150‑1290‑5940
Technical Support: sales@manduic.com
Official Website:
www.manduic.com