SST39SF040-55-4I-NHE More Semiconductors - ICs by Microchip Technology

4Mb 4.5-5.5V Parallel Flash

Status: Active
Series: SST39SF040
RoHS: Compliant
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The SST39SF040 is a CMOS Multi-Purpose Flash (MPF) manufactured with SST 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. The SST39SF040 writes (Program or Erase) with a 4.5-5.5V power supply, and conforms to JEDEC standard pinouts for x8 memories.

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Prices starting from US$2.34

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Organized as 128K x8 / 256K x8 / 512K x8
Single 4.5-5.5V Read and Write Operations
Superior Reliability – Endurance: 100,000 Cycles (typical) – Greater than 100 years Data Retention
Low Power Consumption (typical values at 14 MHz) – Active Current: 10 mA (typical) – Standby Current: 30 µA (typical)
Sector-Erase Capability – Uniform 4 KByte sectors
Fast Read Access Time: – 55 ns – 70 ns
Latched Address and Data
Automatic Write Timing – Internal VPP Generation
Fast Erase and Byte-Program – Sector-Erase Time: 18 ms (typical) – Chip-Erase Time: 70 ms (typical) – Byte-Program Time: 14 µs (typical) – Chip Rewrite Time: 2 seconds (typical) for SST39SF010A 4 seconds (typical) for SST39SF020A 8 seconds (typical) for SST39SF040
End-of-Write Detection – Toggle Bit – Data# Polling
TTL I/O Compatibility
JEDEC Standard – Flash EEPROM Pinouts and command sets
Packages Available – 32-lead PLCC – 32-lead TSOP (8mm x 14mm) – 32-pin PDIP
All devices are RoHS compliant
All non-Pb (lead-free) devices are RoHS compliant


Density (Organization) 4 Mbit
Operating Voltage Min. (V) 4.5
Oper Voltage Max (V) 5.5
Max. Clock Freq. 1 kHz
Read Access Speed (Par Flash) 55 ns
Page Size (bytes) 0
Write Protected False
Endurance 100,000
Data Retention (Years) 0
Battery Backup False

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 1.129
Shipping Weight (kg) 2.333333
Lead Count 32
Package Type PLCC
Package Width or Size 11.5x14x3.37mm
Soldering Composition Matte Tin

Alternative Descriptions

Flash 4Mbit 512Kx8 Parallel 32-Pin PLCC | RS
SST39SF Series 4.5 - 5.5 V 4M (512K x 8) 55 NS Multi-Purpose Flash - PLCC-32 | Future Electronics
Flash Memory, 4Mbit, 55Ns, Plcc-32 | Newark Electronics
FLASH MEMORY, 4MBIT, 55NS, PLCC-32 | element14
4.5V to 5.5V 4Mbit Multi-Purpose Flash | Microchip Technology
Flash Parallel 5V 4Mbit 512K x 8bit 55ns 32-Pin PLCC Tube | EBV Elektronik
4.5V to 5.5V 4Mbit Multi-Purpose Flash32 PLCC TUBE | Microchip Technology Inc. SST39SF040-55-4I-NHE | RS Americas

Frequently Asked Questions

Where can I find additional details, specifications and documents for a SST39SF040-55-4I-NHE?

Additional datasheets, footprints and schematics for SST39SF040-55-4I-NHE are listed on our Part Details page. You can also find images and similar parts to SST39SF040-55-4I-NHE on this page.

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What category does SST39SF040-55-4I-NHE fall under?

The SST39SF040-55-4I-NHE is listed under Semiconductors - ICs > More Semiconductors - ICs.

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Is the SST39SF040-55-4I-NHE RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for SST39SF040-55-4I-NHE have stock available?

Authorised distributors including RS, Future Electronics, Chip One Stop, Newark Electronics and element14 have stock available or on a lead time for SST39SF040-55-4I-NHE.

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