AP Memory's PSRAM enhances the industrial-grade stability of Wi-SUN wireless modules.

Wi-SUN radio modules—combining low power, long range, and bullet-proof reliability—are now the backbone of smart-grid, smart-city, and industrial-automation networks. In AMI (electricity/water meters) they shuttle real-time data between edge devices and the cloud; in street-lighting and environmental-sensor networks they keep dozens of nodes synchronized. When engineers pick the bill-of-materials, the marriage between the main MCU and the memory is critical. PSRAM, with its high-speed random access, 1.8 V low-power profile, and tiny footprint, has become the go-to companion chip to squeeze every last drop of efficiency out of a Wi-SUN module. It soaks up bursty traffic, cuts latency, trims overall power, and still fits inside the tightest embedded form-factor.

A 256 Mb PSRAM acts as the module’s working buffer and scratch-pad. Sensor streams, protocol-stack contexts, and over-the-air commands all land here first; the 256 Mb density absorbs the instantaneous peaks that would overwhelm smaller memories and guarantees no dropped packets or stalled tasks. The extra capacity also leaves headroom for more sophisticated mesh algorithms and true multi-threading, while the high bandwidth keeps pace with Wi-SUN’s over-the-air data rates so that RX → process → TX flows stay seamless even in dense, high-traffic neighborhoods.

AP Memory’s 256 Mb device, APS256XXN-OBR-BG, is purpose-built for this slot. Fabricated on an advanced node, it runs at 1.8 V (saving precious battery joules), clocks up to 166 MHz, and ships in a miniature BGA that frees PCB real-estate for smaller RF layouts. The part delivers rock-solid read/write consistency across the full Wi-SUN protocol stack, lowering packet-loss, and is specified –40 °C to +85 °C so that outdoor cabinets and factory floors are no problem. MANDU, AP Memory’s authorized distributor, backs the device with expert selection guidance—helping customers tune density, frequency, and package to the exact Wi-SUN profile—and offers a veteran FAE team, turnkey layout reviews, and fast samples so developers can de-risk early prototypes.

Bottom line: AP Memory 256 Mb PSRAM brings the capacity, speed, and energy efficiency needed to unlock the full potential of Wi-SUN modules, while MANDU’s one-stop support shortens design cycles and time-to-money. Engineers looking to accelerate their next Wi-SUN product and out-class the competition should specify AP Memory PSRAM from day one.

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

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Website: www.manduic.com

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