Microchip SST26WF040B-104I/SN, SPI, SQI 4Mbit Flash Memory; 1.8V, 8-Pin SOIC

  • RS Stock No. 111-5574
  • Mfr. Part No. SST26WF040B-104I/SN
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

SST26WF040B/080B/016B Serial Quad I/O (SQI) SuperFlash® Flash Memory

From Microchip the SST26WFxxxB family of products are Serial Quad I/O (SQI) Flash Memory devices available in 4-, 8- and 16-bit variants. These devices support full command-set compatibility with Serial Peripheral Interface (SPI) protocol and enable minimum latency Execute-in-Place (XIP) capability without the need for code shadowing on an SRAM. The SST26WFxxxB devices exhibit low power consumption, making them suitable for portable battery powered applications.


Operating Voltage Range 1.6 to 1.95 V
Clock Frequency 104 MHz max
Serial Interface Architecture
Low Power Consumption: Active Read Current: 15 mA (typical at 104 MHz), Standby Current: 10 μA (typical)
Burst Modes: Continuous Linear Burst, 8/16/32/64 Byte Linear Burst with Wrap-Around
Page-Program: 256 Bytes per page in x1 or x4 mode
Fast Erase Time: Sector/Block Erase 18 ms (typ), 25 ms (max); Chip Erase 35 ms (typ), 50 ms (max)
Flexible Erase Capability
End-of-Write Detection
Software Protection
Software Reset (RST) Mode
SFDP (Serial Flash Discoverable Parameters)

Flash Memory, Microchip

Attribute Value
Memory Size 4Mbit
Interface Type SPI, SQI
Package Type SOIC
Pin Count 8
Organisation 1M x 4 bit, 2M x 2 bit, 4M x 1 bit
Mounting Type Surface Mount
Cell Type Split Gate
Minimum Operating Supply Voltage 1.65 V
Maximum Operating Supply Voltage 1.95 V
Length 4.9mm
Height 1.25mm
Width 6mm
Dimensions 4.9 x 6 x 1.25mm
Number of Bits per Word 1 bit, 2 bit, 4 bit
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +85 °C
Number of Words 1M, 2M, 4M
Discontinued product