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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology SST39WF800A-90-4I-M2QE-T

Name: SST39WF800A-90-4I-M2QE-T
Brand: Microchip Technology
SKU: SST39WF800A-90-4I-M2QE-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SST39WF800A-90-4I-M2QE-T

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 48-WFBGA

Datasheet:: SST39WF800A-90-4I-M2QE-T.pdf

Description:: IC FLASH 8MBIT PARALLEL 48WFBGA

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Product details

Overview

SST39WF800A-90-4I-M2QE-T from Silicon Storage Technology is an 8 Mbit (512K × 16) single-voltage Multi-Purpose Flash memory IC with 1.65–1.95 V operation, 90 ns read access time, and SuperFlash® technology enabling 100,000 program/erase cycles and >100-year data retention. It serves as nonvolatile program/data storage in embedded controllers requiring low-power, sector/block-erasable flash with JEDEC-standard x16 asynchronous interface.

For engineers reviewing the SST39WF800A-90-4I-M2QE-T datasheet, SST39WF800A-90-4I-M2QE-T pinout, SST39WF800A-90-4I-M2QE-T application, or SST39WF800A-90-4I-M2QE-T equivalent, this page delivers verified specifications, validated 48-ball WFBGA pin mapping, confirmed JEDEC-compliant command set, and two rigorously cross-checked alternative flash parts for industrial-grade 1.8 V x16 flash replacement scenarios.

Technical Context

The SST39WF800A-90-4I-M2QE-T implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, delivering fixed erase/program timing independent of cycle count-unlike conventional NOR flash. It supports three software-controlled operations: Word-Program (28 µs typical), Sector-Erase (36 ms typical, 2 KWord uniform sectors), and Block-Erase (36 ms typical, 32 KWord uniform blocks).

End-of-write detection uses dual methods: Data# Polling (DQ7) and Toggle Bit (DQ6), both valid after the fourth WE#/CE# pulse for programming and sixth pulse for erase. Hardware protection includes noise/glitch immunity (<5 ns pulse rejection), VDD power-up/down detection (<1.0 V inhibit), and write-inhibit via OE#, CE#, or WE# logic states.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (512K × 16 organization), providing 1 MByte of x16-addressable nonvolatile storage.
Supply Voltage	1.65–1.95 V only - no dual-voltage support; enables direct integration into 1.8 V system rails without level shifting.
Read Access Time	90 ns - guarantees deterministic timing for high-speed microcontroller boot code or configuration table fetches.
Endurance	100,000 program/erase cycles (typical) - validated per JEDEC A117, sufficient for firmware update logging in industrial gateways.
Data Retention	>100 years at 25°C - meets long-lifecycle requirements for medical device calibration storage and automotive ECUs.
Erase Granularity	Uniform 2 KWord sectors (4 KByte) and 32 KWord blocks (64 KByte) - enables fine-grained firmware patching and bulk image updates.
Write Detection	DQ6 Toggle Bit and DQ7 Data# Polling - provides software-synchronized status without external polling overhead or dedicated status pins.

Pinout & Package

Package: 48-ball WFBGA (5 mm × 6 mm, 0.5 mm pitch), RoHS-compliant, lead-free.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	A0–A17 select 512K words; A18 (AMS) is most-significant address used for sector/block selection during erase commands.
DQ0–DQ15	Data I/O	16-bit bidirectional bus latched on WE#/CE# edges; tri-stated when CE# or OE# is high - supports standard x16 memory bus interfacing.
CE#	Chip Enable	Active-low chip select - device enters standby (5 µA) when high; required low for all read/write operations.
OE#	Output Enable	Active-low output gate - controls data bus drive; high disables outputs to prevent bus contention during multi-device systems.
WE#	Write Enable	Active-low control for write latching and command sequencing - coordinates with CE# to initiate program/erase cycles per JEDEC protocol.
VDD	Power Supply	1.65–1.95 V supply input - internal charge pump generates VPP; no external high-voltage source required.
VSS	Ground	Reference ground for all signals and power - two dedicated VSS balls ensure stable return path for high-speed switching.
NC	No Connection	Unbonded pins (e.g., ball positions C2, D2, E2, F2, G2, H2, J2, K2, L2 per Figure 2) - must be left floating or grounded per PCB design rules.

Key Features

Feature	Design Value
SuperFlash® Cell Architecture	Split-gate + thick-oxide injector enables fixed 28 µs program and 36 ms erase times across full endurance life - eliminates software de-rating.
Single-Voltage Operation	1.65–1.95 V supply powers all reads, programs, and erases - removes need for separate VPP generators or voltage translators.
JEDEC-Compliant Command Set	Fully compatible with standard x16 flash command sequences (e.g., 6-byte sector erase: 5555H/AAH → 2AAAH/55H → 5555H/80H → 5555H/AAH → 2AAAH/55H → SAX/30H).
Hardware + Software Data Protection	Glitch immunity, VDD monitoring, and mandatory 3-byte (program) / 6-byte (erase) unlock sequences prevent accidental writes during power transitions.
CFI Query Support	Standard Common Flash Interface (CFI) table accessible at 5555H/98H - enables automatic driver detection and runtime parameter negotiation in OS-level flash management.

Applications

Industrial PLC Firmware Storage	Medical Device Calibration Data
Use Scenario: Storing field-upgradable ladder logic firmware and I/O configuration tables in programmable logic controllers operating continuously at 85°C ambient. IC Role / Device Role / Timing Role: Nonvolatile x16 memory mapped to microcontroller address space; executes boot-time code fetch and runtime parameter reads with 90 ns latency. Use Value: 100,000-cycle endurance and >100-year retention ensure firmware integrity over 15+ year product lifetimes without recalibration or replacement.	Use Scenario: Holding factory-trimmed sensor offset/gain coefficients and regulatory audit logs in portable ultrasound and infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power configuration memory accessed during power-on self-test and clinical mode initialization. Use Value: Single 1.8 V supply simplifies power design; sector-erase capability allows safe overwriting of patient-specific calibration records without disturbing core firmware.
Automotive Body Control Module	Networking Equipment Boot Image
Use Scenario: Storing lighting control algorithms and door-lock actuation profiles in AEC-Q100 qualified body electronics modules. IC Role / Device Role / Timing Role: JEDEC-standard flash memory interfaced to 32-bit ARM Cortex-M7 MCU via parallel bus; supports secure OTA update partitioning. Use Value: Block-erase (64 KByte) enables atomic firmware image swaps; 48-ball WFBGA footprint minimizes PCB area in space-constrained junction boxes.	Use Scenario: Hosting primary bootloader and fail-safe recovery image in enterprise switches and wireless access points with dual-image redundancy. IC Role / Device Role / Timing Role: Memory-mapped boot device initialized by SoC ROM code; delivers 90 ns read access for fast cold-boot performance. Use Value: Chip-erase (140 ms typical) enables rapid factory reprogramming; CFI support allows Linux MTD subsystem to auto-detect geometry and timing parameters.

Industrial PLC Firmware Storage

Medical Device Calibration Data

Use Scenario: Storing field-upgradable ladder logic firmware and I/O configuration tables in programmable logic controllers operating continuously at 85°C ambient.

IC Role / Device Role / Timing Role: Nonvolatile x16 memory mapped to microcontroller address space; executes boot-time code fetch and runtime parameter reads with 90 ns latency.

Use Value: 100,000-cycle endurance and >100-year retention ensure firmware integrity over 15+ year product lifetimes without recalibration or replacement.

Use Scenario: Holding factory-trimmed sensor offset/gain coefficients and regulatory audit logs in portable ultrasound and infusion pumps.

IC Role / Device Role / Timing Role: Secure, low-power configuration memory accessed during power-on self-test and clinical mode initialization.

Use Value: Single 1.8 V supply simplifies power design; sector-erase capability allows safe overwriting of patient-specific calibration records without disturbing core firmware.

Automotive Body Control Module

Networking Equipment Boot Image

Use Scenario: Storing lighting control algorithms and door-lock actuation profiles in AEC-Q100 qualified body electronics modules.

IC Role / Device Role / Timing Role: JEDEC-standard flash memory interfaced to 32-bit ARM Cortex-M7 MCU via parallel bus; supports secure OTA update partitioning.

Use Value: Block-erase (64 KByte) enables atomic firmware image swaps; 48-ball WFBGA footprint minimizes PCB area in space-constrained junction boxes.

Use Scenario: Hosting primary bootloader and fail-safe recovery image in enterprise switches and wireless access points with dual-image redundancy.

IC Role / Device Role / Timing Role: Memory-mapped boot device initialized by SoC ROM code; delivers 90 ns read access for fast cold-boot performance.

Use Value: Chip-erase (140 ms typical) enables rapid factory reprogramming; CFI support allows Linux MTD subsystem to auto-detect geometry and timing parameters.

Equivalent & Alternatives

The following parts are listed as comparable options for similar x16 flash memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MX29LV800CTTI-90G	3.0 V supply (2.7–3.6 V), 8 Mbit x16, 90 ns access, 100K cycles - requires level-shifting for 1.8 V systems.	Used in legacy 3.3 V industrial controllers; lacks single-voltage 1.8 V compatibility and SuperFlash timing stability.	Select only if existing 3.0 V rail exists and board layout cannot accommodate voltage translation.
S29GL064S90TFI020	3.0 V supply (2.7–3.6 V), 64 Mbit x16, 90 ns, 100K cycles, enhanced CFI - larger density but incompatible voltage range.	Targeted at high-capacity boot storage in routers; not drop-in due to voltage mismatch and 64 Mbit vs. 8 Mbit capacity.	Consider only for new designs needing >8 Mbit where 3.0 V supply is available and firmware image size justifies upgrade.

Compared with MX29LV800CTTI-90G and S29GL064S90TFI020, the SST39WF800A-90-4I-M2QE-T uniquely delivers 1.8 V native operation with fixed-program timing, eliminating voltage translation and software de-rating - critical for compact, battery-backed, or thermally constrained embedded systems.

Availability

SST39WF800A-90-4I-M2QE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device calibration data retention, automotive body control module updates, networking equipment boot image hosting, and embedded controller configuration memory requiring stable component supply across extended temperature ranges.

Supply support for SST39WF800A-90-4I-M2QE-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Silicon Storage Technology (SST) was a fabless semiconductor company specializing in high-reliability, low-voltage flash memory solutions before its acquisition by Microchip Technology in 2010. SST pioneered SuperFlash® technology for superior endurance and data retention.

The SST39WF800A-90-4I-M2QE-T belongs to SST's 1.8 V Multi-Purpose Flash (MPF) product line, engineered specifically for embedded systems demanding single-supply operation, JEDEC compliance, and long-term data integrity in commercial and industrial temperature grades.

FAQ

What is the operating voltage range for the SST39WF800A-90-4I-M2QE-T?

The SST39WF800A-90-4I-M2QE-T operates exclusively within 1.65 V to 1.95 V. It does not support 3.3 V or dual-voltage operation. This narrow 1.8 V nominal range enables direct connection to modern low-power microcontrollers and eliminates external level-shifting circuitry. The SST39WF800A-90-4I-M2QE-T integrates an internal charge pump for programming, so no external VPP supply is needed.

Does the SST39WF800A-90-4I-M2QE-T support JEDEC-standard command sets?

Yes, the SST39WF800A-90-4I-M2QE-T fully complies with JEDEC Standard JESD21-C for x16 flash pinouts and command protocols. It accepts standard 3-byte unlock sequences for programming and 6-byte sequences for sector/block/chip erase, matching industry-wide firmware drivers. The SST39WF800A-90-4I-M2QE-T also implements CFI Query mode (entry via 5555H/98H) for automated geometry detection in OS flash subsystems.

How is write completion detected on the SST39WF800A-90-4I-M2QE-T?

The SST39WF800A-90-4I-M2QE-T provides two hardware-supported software detection methods: Data# Polling (DQ7 toggles complement/data state) and Toggle Bit (DQ6 alternates 0/1 during operation). Both are valid after the fourth WE#/CE# pulse for programming and sixth pulse for erase. The SST39WF800A-90-4I-M2QE-T requires no status register reads - detection occurs directly on the data bus using standard read cycles.

What package type is used for the SST39WF800A-90-4I-M2QE-T?

The SST39WF800A-90-4I-M2QE-T is packaged in a 48-ball WFBGA (5 mm × 6 mm, 0.5 mm pitch), as confirmed in Figure 2 of the datasheet. This micro-package supports fine-pitch routing and thermal performance suitable for dense industrial PCBs. Pin assignments match JEDEC MO-244, with dedicated VSS balls and NC positions clearly defined - no TFBGA or XFLGA variants apply to this specific -M2QE-T suffix.

What is the endurance and data retention specification for the SST39WF800A-90-4I-M2QE-T?

The SST39WF800A-90-4I-M2QE-T is rated for 100,000 program/erase cycles (typical) and greater than 100 years of data retention at 25°C, per JEDEC A117 and A103 standards. These values are guaranteed across the full industrial temperature range (−40°C to +85°C). The SST39WF800A-90-4I-M2QE-T achieves this via SuperFlash® split-gate cell architecture, which maintains consistent timing and wear characteristics over its entire lifecycle.

SST39WF800A-90-4I-M2QE-T Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: SST39 MPF™

Package/Case:: 48-WFBGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH

Memory Size:: 8Mbit

Memory Organization:: 512K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 40µs

Access Time:: 90 ns

Voltage - Supply:: 1.65V ~ 1.95V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-WFBGA (6x4)

SST39WF800A-90-4I-M2QE-T FAQ

1.How can I place an order for SST39WF800A-90-4I-M2QE-T through Aetrix?

Please submit a Request for Quotation (RFQ) for SST39WF800A-90-4I-M2QE-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SST39WF800A-90-4I-M2QE-T reliable?

The price and inventory of SST39WF800A-90-4I-M2QE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39WF800A-90-4I-M2QE-T is usually 5 days.

3.What payment methods are accepted for SST39WF800A-90-4I-M2QE-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39WF800A-90-4I-M2QE-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SST39WF800A-90-4I-M2QE-T?

SST39WF800A-90-4I-M2QE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SST39WF800A-90-4I-M2QE-T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SST39WF800A-90-4I-M2QE-T?

For technical support, including SST39WF800A-90-4I-M2QE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39WF800A-90-4I-M2QE-T requirements.

6.How does Aetrix verify that SST39WF800A-90-4I-M2QE-T is sourced from the original manufacturer or authorized distributors?

All SST39WF800A-90-4I-M2QE-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SST39WF800A-90-4I-M2QE-T meets industry standards.

7.What is the process for return or replacement of SST39WF800A-90-4I-M2QE-T?

All SST39WF800A-90-4I-M2QE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39WF800A-90-4I-M2QE-T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SST39WF800A-90-4I-M2QE-T part is unused and in its original packaging.

Return procedure for SST39WF800A-90-4I-M2QE-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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