Small, Low-Power 4-Mbit SPI Serial Flash

Small, Low-Power 4-Mbit SPI Serial Flash Chip boosts Performance, Reliability and Battery Life in Handheld applications

The latest 4-Mbit, small form factor 1.8V SPI serial flash memory chip from SST offers a reduction in chipset pin counts, board space, power consumption and cost. The maximum active power consumption for both read and write operations is significantly less than that of the lowest power 3V products currently on the market.

Silicon Storage Technology (SST) has extended its widely adopted 1.8V 25WF Series SPI serial flash memory family with the addition of the 4-Mbit, small form factor SST25WF040. Addressing the particular design requirements of the high-volume portable electronics market, including reductions in chipset pin counts, board space, power consumption and cost, the SST25WF040 is ideal for battery-powered, space- and height-constrained mobile applications where performance, reliability and low-power consumption are crucial to product success.

Manufactured with SST proprietary, high performance CMOS SuperFlash technology, the SST25WF040 has a full voltage range from 1.65V to 1.95V for read and write operations and a fast read speed of 40 MHz. Active read currents are 4 mA (typical at 40 MHz), standby currents are only 2 µA (typical) and maximum write currents are 10 mA for both program and erase operations. With this performance, the 25WF Series offers the lowest voltage and lowest standby current consumption for SPI serial flash. Customers utilizing the SST25WF040 will increase the battery life in their portable applications and will be able to add more content and features into their mobile systems.

The SST25WF040 is rated for industrial temperatures (-40°to +85° C) and offers 100,000 read/write cycles minimum per memory block for high-endurance applications. The device is available in an 8-lead, 150 mils SOIC package with other smaller package options in the pipeline. In addition, the device is offered as Known Good Die (KGD).

Pricing and Availability
The SST25WF040 is in volume production. Like all products in the 25WF Series the SST25WF040 is lead free (non Pb) and RoHS compliant.