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Price Comparison for SST25VF040B-50-4I-QAF
Details for Microchip Technology


2.7V to 3.6V 4Mbit SPI Serial Flash
Buy Directly from Microchip Technology (5662 in Stock)
$0.9100 per unit
Series Information for SST25VF040B-50-4I-QAF - Microchip Technology


  • feature
  • feature
    8-contact WSON (6
  • feature
    8-lead SOIC (150 mils)
  • feature
    8-lead SOIC (200 mils)
  • feature
    Active Read Current: 10 mA (typical)
  • feature
    Auto Address Increment (AAI) Programming
  • feature
    Busy Status readout on SO pin in AAI Mode
  • feature
    Byte-Program Time: 7 u00b5s (typical)
  • feature
    Chip-Erase Time: 35 ms (typical)
  • feature
    Commercial: 0u00b0C to +70u00b0C
  • feature
    Decrease total chip programming time over Byte-Program operations
  • feature
    Enables/Disables the Lock-Down function of the status register
  • feature
    End-of-Write Detection
  • feature
    Endurance: 100,000 Cycles (typical)
  • feature
    Fast Erase and Byte-Program:
  • feature
    Flexible Erase Capability
  • feature
    Greater than 100 years Data Retention
  • feature
    High Speed Clock Frequency
  • feature
    Hold Pin (HOLD#)
  • feature
    Industrial: -40u00b0C to +85u00b0C
  • feature
    Low Power Consumption:
  • feature
    Packages Available
  • feature
    SPI Compatible: Mode 0 and Mode 3
  • feature
    Sector-/Block-Erase Time: 18 ms (typical)
  • feature
    Serial Interface Architecture
  • feature
    Software Write Protection
  • feature
    Software polling the BUSY bit in Status Register
  • feature
    Standby Current: 5 u00b5A (typical)
  • feature
    Superior Reliability
  • feature
    Suspends a serial sequence to the memory without deselecting the device
  • feature
    Temperature Range
  • feature
    Uniform 32 KByte overlay blocks
  • feature
    Uniform 4 KByte sectors
  • feature
    Uniform 64 KByte overlay blocks
  • feature
    Up to 50 MHz
  • feature
    Write Protection (WP#)
  • feature
    Write protection through Block-Protection bits in status register


The 25 series Serial Flash family features a four-wire, SPI-compatible interface that allows for a low pin-count package which occupies less board space and ulti- mately lowers total system costs. The SST25VF040B devices are enhanced with improved operating fre- quency and even lower power consumption. SST25VF040B SPI serial flash memories are manu- factured with proprietary, high-performance CMOS SuperFlash technology. The split-gate cell design and thick-oxide tunneling injector attain better reliability and manufacturability compared with alternate approaches. SST25VF040B devices significantly improve perfor- mance and reliability, while lowering power consump- tion. The devices write (Program or Erase) with a single power supply of 2.7-3.6V for SST25VF040B. The total energy consumed is a function of the applied voltage, current, and time of application. Since for any given voltage range, the SuperFlash technology uses less current to program and has a shorter erase time, the total energy consumed during any Erase or Program operation is less than alternative flash memory technol- ogies. The SST25VF040B device is offered in an 8-lead SOIC (200 mils), 8-lead SOIC (150 mils), and 8-contact WSON (6mm x 5mm) packages. See Figure 2-1 for pin assignments. SST25VF040B 4 Mbit SPI Serial Flash


Flash Memory Type:
Serial NOR
Memory Size:
Flash Memory Configuration:
512K x 8bit
IC Interface Type:
Serial SPI
Memory Case Style:
No. of Pins:
Clock Frequency:
Access Time:
Supply Voltage Min:
Supply Voltage Max:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
3V Serial NOR Flash Memories
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (15-Jan-2018)
Device Marking:
Memory Type:
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
2.7V to 3.6V
Termination Type:
Surface Mount Device

Alternate Descriptions

Avnet America

Flash Serial-SPI 3.3V 4Mbit 512K x 8bit 8ns 8-Pin WSON EP Tube

Avnet America product

Microchip Technology Inc

2.7V to 3.6V 4Mbit SPI Serial Flash

Future Electronics

SST25VF Series 4 Mbit 512 K x 8 3.6 V Surface Mount SPI Serial Flash - WSON-8