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SST26WF040B-104I/SN

MCHPSST26WF040B-104I/SN

Microchip Technology
FLASH Memory IC 4Mbit SPI - Quad I/O 104 MHz 8-SOIC
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Overview

The SST26WF040B-104I/SN is a 4Mbit Serial Quad I/O (SQI) flash memory device designed for low-power applications operating between 1.65V and 1.95V. It utilizes a 4-bit multiplexed I/O interface to achieve high-performance data throughput of up to 104 MHz, significantly outperforming standard serial flash protocols. This non-volatile memory is organized as 512K x 8 and features advanced protection and security mechanisms in a compact 8-SOIC package.

Why Choose This Part

This device offers a high-speed 104 MHz clock frequency with Quad I/O capability, enabling fast system boot times and efficient execution-in-place (XiP). It features an extremely low standby current of 10uA and a deep power-down mode of 1.8uA, making it one of the most power-efficient 1.8V flash options available. Furthermore, it supports flexible erase capabilities with sector-erase and block-erase options to optimize software management of the memory map.

Applications

Battery-Powered IoT Nodes
Ideal for data logging and code storage in 1.8V systems where power consumption must be minimized during both active and standby modes.
Wearable Technology
The small 8-pin SOIC footprint and low operating voltage suit space-constrained devices with limited power budgets.
Bluetooth Low Energy (BLE) Firmware Storage
Provides reliable non-volatile storage for firmware images and user configuration data in wireless modules.
Portable Medical Devices
Offers high endurance and long-term data retention for critical diagnostic or monitoring equipment.

Key Specifications

Technology FLASH
Memory Size 4Mbit
Memory Type Non-Volatile
Memory Format FLASH
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 104 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 1.65V ~ 1.95V
Memory Organization 512K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 1.5ms

Getting Started

To evaluate this part, engineers can use the Microchip MPLAB Starter Kit for Serial Memory Products or connect it to any MCU with a 1.8V SPI/SQI peripheral. Ensure the host microcontroller supports 1.8V logic levels or use appropriate level shifters to avoid damaging the IC. Implementation is straightforward using standard SPI commands or the enhanced SQI instruction set for maximum throughput.