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Microchip Technology SST39WF800A-90-4I-B3KE-T
- Part No.:
- SST39WF800A-90-4I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39WF800A-90-4I-B3KE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,437
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Product details
Overview
SST39WF800A-90-4I-B3KE-T from Silicon Storage Technology is a 8 Mbit (512K × 16) single-supply Multi-Purpose Flash memory IC with SuperFlash technology, operating at 1.65–1.95 V, 90 ns read access time, and JEDEC-standard x16 asynchronous interface. It delivers 100,000 program/erase cycles and >100 years data retention, used in embedded firmware storage for industrial controllers and network edge devices.
For engineers reviewing the SST39WF800A-90-4I-B3KE-T datasheet, SST39WF800A-90-4I-B3KE-T pinout, SST39WF800A-90-4I-B3KE-T application, or SST39WF800A-90-4I-B3KE-T equivalent, key selection criteria include its 1.8 V core operation, uniform 2 KWord sector / 32 KWord block erase architecture, toggle-bit/data# polling write status detection, and 48-ball WFBGA (5 mm × 6 mm) RoHS-compliant packaging.
Technical Context
The SST39WF800A-90-4I-B3KE-T implements an x16 asynchronous parallel interface with latched address and data, requiring standard microprocessor CE#/OE#/WE# control signals. Its SuperFlash split-gate cell enables fixed 28 µs word-program and 36 ms sector/block-erase times independent of cycle count.
It supports JEDEC-standard command sets including Software Data Protection (SDP) with three-byte unlock sequences for programming and six-byte sequences for erasure, plus CFI Query mode for automated device identification and parameter discovery. Hardware write inhibition operates via VDD power-up/down detection and sub-5 ns noise immunity on WE#/CE#.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 512K × 16 (8 Mbit total), x16-only asynchronous interface per CFI geometry table |
| Supply Voltage | 1.65–1.95 V - enables direct integration into 1.8 V system rails without level-shifting |
| Read Access Time | 90 ns - meets timing for 5 MHz bus operation with full address/data latch support |
| Endurance | 100,000 program/erase cycles - qualified per JEDEC A117, sufficient for field firmware updates over 10+ years |
| Data Retention | >100 years - rated per JEDEC A103, ensuring long-term reliability in unpowered storage |
| Erase Architecture | Uniform 2 KWord sectors (256 sectors) and 32 KWord blocks (16 blocks) - enables granular, deterministic update partitioning |
| Write Detection | Toggle Bit (DQ6) and Data# Polling (DQ7) - software-controlled status monitoring without external hardware |
Pinout & Package
Package: 48-ball WFBGA (5 mm × 6 mm), RoHS-compliant, ball pitch 0.5 mm. Pin assignments conform to JEDEC-standard x16 flash pinouts as shown in Figure 2 of the datasheet.
| 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 addressing during erase |
| DQ0–DQ15 | Data I/O | x16 bidirectional data bus; tri-stated when CE# or OE# is high; latched on rising edge of WE#/CE# |
| CE# | Chip Enable | Active-low device selection; places chip in standby (5 µA) when high |
| OE# | Output Enable | Active-low output gating; controls data bus drive without affecting internal state |
| WE# | Write Enable | Active-low control for write cycles; initiates command latching and internal program/erase timing |
| VDD | Power Supply | 1.65–1.95 V core supply; internally generates VPP for tunneling - no external high-voltage source required |
| VSS | Ground | Two dedicated ground balls (pins E1, H1) minimize noise coupling in high-speed read/write transitions |
| NC | No Connection | Unbonded balls (e.g., C1, D1, F1, G1, J1, K1, L1) - must be left floating per design |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide injector enables fixed 28 µs program and 36 ms erase times across full endurance life |
| Single-Voltage Operation | 1.65–1.95 V supply powers all read, program, and erase functions - eliminates need for charge pumps or auxiliary voltages |
| Hardware + Software Protection | Glitch immunity (<5 ns), VDD lockout (<1.0 V), and JEDEC SDP with 3-/6-byte unlock sequences prevent accidental writes during power transitions |
| CFI Compliance | Supports Common Flash Interface Query mode (98H command) for automatic detection of geometry, timings, and command set by host bootloader |
| Low Power Profile | 5 mA active current (5 MHz) and 5 µA standby current enable battery-backed or energy-constrained embedded applications |
Applications
| Firmware Storage in Industrial PLCs | Boot Code Storage in Network Routers |
|---|---|
Use Scenario: Storing programmable logic controller firmware that requires field updates via serial interface and must survive 10+ years of operation in factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with x16 parallel interface, directly mapped to microcontroller address space for zero-wait-state boot execution. Use Value: 100,000-cycle endurance and >100-year data retention ensure reliable firmware version management across multiple product lifecycles without replacement. |
Use Scenario: Holding boot loader and initial configuration images in carrier-grade Ethernet routers where fast read access and secure erase capability are mandatory. IC Role / Device Role / Timing Role: Primary boot memory accessed during cold start; supports sector-erase for safe firmware rollback after failed upgrade attempts. Use Value: 90 ns read access enables sub-100 ms boot time; uniform 2 KWord sectors allow atomic reprogramming of critical boot modules without disturbing adjacent code. |
| Configuration Memory in Medical Imaging Systems | FPGA Configuration Storage in Test Equipment |
Use Scenario: Retaining calibration parameters and user-defined scan profiles in MRI subsystem controllers operating under strict IEC 62304 safety requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store with hardware write inhibit and SDP-enabled erase lockdown during diagnostic self-tests. Use Value: Toggle Bit and Data# Polling provide deterministic write completion signaling - essential for audit-trail logging and FDA-regulated change verification. |
Use Scenario: Storing bitstream images for Xilinx Spartan or Intel MAX 10 FPGAs in automated test equipment requiring rapid reconfiguration between test sequences. IC Role / Device Role / Timing Role: Parallel-programmable configuration ROM interfaced to FPGA's slave parallel mode pins; erased via block-erase before new bitstream load. Use Value: 32 KWord block-erase (36 ms typical) enables full FPGA reconfiguration in <50 ms - meeting tight test cycle timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF800A-90-4I-B3KE-T | 3.0 V core supply (2.7–3.6 V); identical 8 Mbit x16 organization, SuperFlash architecture, and pinout | Requires separate 3.0 V rail; unsuitable for 1.8 V-only systems but offers higher noise margin in electrically noisy industrial settings | Select when existing board uses 3.0 V VDD and legacy compatibility with SST39VF family is required |
| MX29LV800CTTI-90G | 3.0 V supply, 8 Mbit x16, 90 ns access; uses standard NOR flash (not SuperFlash); 48-pin TSOP package (not BGA) | Larger footprint, no uniform block erase; slower typical erase times (1 sec chip-erase vs. 140 ms); lacks CFI Query mode | Choose only if TSOP mounting is mandated and 1.8 V operation is not required; verify layout compatibility due to different package and pinout |
Compared with SST39VF800A-90-4I-B3KE-T and MX29LV800CTTI-90G, the SST39WF800A-90-4I-B3KE-T uniquely delivers 1.8 V operation in a compact WFBGA, fixed low-latency erase/program timing, and CFI support - making it optimal for space-constrained, low-power, and auto-configuring embedded systems.
Availability
SST39WF800A-90-4I-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot code retention, medical imaging calibration memory, FPGA configuration loading, and embedded bootloader applications requiring stable component supply across extended production lifecycles.
Supply support for SST39WF800A-90-4I-B3KE-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, acquired by Microchip Technology in 2010. Its SuperFlash technology is now part of Microchip's memory portfolio.
The SST39WF800A-90-4I-B3KE-T belongs to SST's 1.8 V Multi-Purpose Flash (MPF) product line, engineered for cost-sensitive, power-constrained embedded systems needing robust firmware and configuration storage with deterministic timing and JEDEC interoperability.
FAQ
What voltage range does the SST39WF800A-90-4I-B3KE-T require for full read and write functionality?
The SST39WF800A-90-4I-B3KE-T operates exclusively within a 1.65–1.95 V supply range for all functions - reads, word-programming, and sector/block/chip-erase. Operation outside this window disables write capability and may cause read instability. The device incorporates VDD power-up/down detection that inhibits writes below 1.0 V, ensuring safe behavior during brown-out conditions. This 1.8 V nominal range makes SST39WF800A-90-4I-B3KE-T compatible with modern low-power microcontrollers and SoCs without level-shifting circuitry.
Does the SST39WF800A-90-4I-B3KE-T support JEDEC-standard command sets and identification protocols?
Yes, the SST39WF800A-90-4I-B3KE-T fully complies with JEDEC Standard JESD21-C for x16 flash pinouts and command definitions. It implements Software Data Protection (SDP) with standardized 3-byte unlock sequences for programming and 6-byte sequences for erasure. It also supports CFI Query mode (entry via 98H command) and Software Product Identification (90H command), returning manufacturer ID 00BFH and device ID 273FH. These features enable plug-and-play integration with industry-standard flash-aware bootloaders and programming tools - a core design objective of the SST39WF800A-90-4I-B3KE-T.
How does the SST39WF800A-90-4I-B3KE-T indicate completion of a program or erase operation?
The SST39WF800A-90-4I-B3KE-T provides two software-detectable status mechanisms: Data# Polling on DQ7 and Toggle Bit on DQ6. During internal operations, DQ7 returns complemented data until completion, then true data; DQ6 toggles between 0 and 1 until completion, then holds steady. Both are valid after the fourth WE#/CE# pulse for programming and sixth pulse for erasure. This eliminates need for timeout-based polling and allows host firmware to perform other tasks concurrently - a key efficiency feature confirmed in the SST39WF800A-90-4I-B3KE-T datasheet timing diagrams and flowcharts.
What package type and dimensions does the SST39WF800A-90-4I-B3KE-T use, and is it RoHS-compliant?
The SST39WF800A-90-4I-B3KE-T is packaged in a 48-ball WFBGA (Wafer-Level Fine-Pitch Ball Grid Array) measuring 5 mm × 6 mm with 0.5 mm ball pitch. This micro-package is explicitly listed in the datasheet as one of three qualified options (alongside TFBGA and XFLGA) and carries full RoHS compliance certification. The WFBGA variant reduces PCB area by ~40% versus TSOP alternatives and supports fine-pitch routing for high-density designs - a deliberate choice for space-constrained applications like portable test equipment and edge-node gateways where SST39WF800A-90-4I-B3KE-T is commonly deployed.
What is the guaranteed endurance and data retention specification for the SST39WF800A-90-4I-B3KE-T?
The SST39WF800A-90-4I-B3KE-T is guaranteed for 100,000 program/erase cycles and greater than 100 years of data retention at 25°C, both qualified per JEDEC standards A117 and A103 respectively. These values are typified in the datasheet and represent minimum lifetime ratings - not averages. The SuperFlash cell architecture ensures these parameters remain stable across temperature (-40°C to +85°C industrial grade) and do not degrade with accumulated cycles, unlike conventional NOR flash. This reliability profile is foundational to the SST39WF800A-90-4I-B3KE-T's use in mission-critical firmware storage where field replacement is impractical.
SST39WF800A-90-4I-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- 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-TFBGA
SST39WF800A-90-4I-B3KE-T FAQ
1.How can I place an order for SST39WF800A-90-4I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39WF800A-90-4I-B3KE-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-B3KE-T reliable?
The price and inventory of SST39WF800A-90-4I-B3KE-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-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39WF800A-90-4I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39WF800A-90-4I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39WF800A-90-4I-B3KE-T?
SST39WF800A-90-4I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39WF800A-90-4I-B3KE-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-B3KE-T?
For technical support, including SST39WF800A-90-4I-B3KE-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-B3KE-T requirements.
6.How does Aetrix verify that SST39WF800A-90-4I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39WF800A-90-4I-B3KE-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-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39WF800A-90-4I-B3KE-T?
All SST39WF800A-90-4I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39WF800A-90-4I-B3KE-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-B3KE-T part is unused and in its original packaging.
Return procedure for SST39WF800A-90-4I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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