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Microchip Technology SST39WF800A-90-4C-B3KE
- Part No.:
- SST39WF800A-90-4C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39WF800A-90-4C-B3KE.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,246
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Product details
Overview
SST39WF800A-90-4C-B3KE from Silicon Storage Technology is an 8 Mbit (512K × 16) single-supply Multi-Purpose Flash memory IC with SuperFlash technology, operating at 1.65–1.95 V, featuring 90 ns read access time, 100,000-cycle endurance, and >100-year data retention. It supports sector/block/chip erase and word-program operations, and is used in embedded firmware storage for industrial controllers and portable instrumentation.
For engineers reviewing the SST39WF800A-90-4C-B3KE datasheet, SST39WF800A-90-4C-B3KE pinout, SST39WF800A-90-4C-B3KE application, or SST39WF800A-90-4C-B3KE equivalent, this page delivers verified technical context, JEDEC-compliant x16 interface timing, SuperFlash reliability metrics, and validated alternative flash parts for firmware update and configuration storage designs.
Technical Context
The SST39WF800A-90-4C-B3KE implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling fixed 28 µs word-program and 36 ms sector/block-erase times independent of cycle count. It uses standard asynchronous x16 bus protocol with CE#, OE#, and WE# control signals and latched address/data paths.
It supports JEDEC-standard command sets including Software Data Protection (SDP) with three-byte unlock sequences for program and six-byte sequences for erase, plus CFI Query mode for automated device identification. End-of-write detection is implemented via Toggle Bit (DQ6) and Data# Polling (DQ7), both valid after the fourth (program) or sixth (erase) WE#/CE# pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16), providing 1 MB of nonvolatile storage for firmware images or configuration tables. |
| Read Access Time | 90 ns - enables direct execution from flash (XIP) in low-latency microcontroller systems. |
| Supply Voltage | 1.65–1.95 V - compatible with 1.8 V system rails without level-shifting, reducing BOM cost. |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over product lifetime. |
| Data Retention | >100 years at 25°C - ensures long-term integrity of calibration data and boot code. |
| Erase Granularity | Uniform 2 KWord sectors (4 KB) and 32 KWord blocks (64 KB) - enables fine-grained firmware partitioning. |
| Program Time | 28 µs per word (typical) - reduces firmware update time versus conventional NOR flash. |
Pinout & Package
Package: 48-ball WFBGA (5 mm × 6 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | A0–A17 select 512K words; A18 (AMS) selects sector/block during erase operations. |
| DQ0–DQ15 | Data I/O | x16 bidirectional data bus; tri-stated when CE# or OE# is high; supports latched read/write transfers. |
| CE# | Chip Enable | Active-low chip select; device enters standby (5 µA) when high; required for all operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive during read; ignored during write/erase. |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC timing rules. |
| VDD | Power Supply | 1.65–1.95 V supply; internal VPP generation eliminates external high-voltage requirement. |
| VSS | Ground | Two dedicated ground balls (pins E1, H1) ensure stable reference for high-speed I/O. |
| NC | No Connection | Unbonded pins (e.g., A1, A2, A5, A11, A13, A14, A15, A16, DQ1, DQ2, DQ3, DQ4, DQ12, DQ13, DQ14) - must be left floating or tied to VSS per layout guidelines. |
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. |
| JEDEC x16 Pinout Compliance | Direct drop-in replacement for industry-standard 8 Mbit x16 NOR flash in existing PCB layouts. |
| Hardware + Software Data Protection | Glitch-filtered WE#/CE#, VDD power-up/down detection, and mandatory 3-/6-byte SDP command sequences prevent accidental writes. |
| CFI Query Support | Enables automatic runtime identification of density, timing, and erase parameters via standardized CFI string (0051H/0052H/0059H). |
| Low Standby Current | 5 µA typical - critical for battery-backed real-time clocks and always-on sensor nodes. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with infrequent but mission-critical field upgrades. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into MCU address space; accessed via x16 asynchronous bus with 90 ns read latency. Use Value: 100,000-cycle endurance and >100-year retention ensure firmware integrity across 15+ year product lifecycles without recalibration or replacement. |
Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory audit logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Configuration EEPROM replacement with faster write throughput (28 µs/word) and no wear-leveling firmware overhead. Use Value: Single 1.8 V supply simplifies power design; sector-erase capability allows safe parameter updates without erasing full firmware image. |
| Automotive Infotainment Boot Code | Network Router Bootloader Storage |
Use Scenario: Storing secure bootloader and initial firmware images in automotive head units requiring AEC-Q100 Grade 3 qualification (–40°C to +85°C). IC Role / Device Role / Timing Role: Primary boot memory accessed by ARM Cortex-A MCU during cold start; requires deterministic 90 ns read timing. Use Value: Industrial temperature grade and JEDEC compliance guarantee reliable XIP execution under thermal cycling and EMI stress. |
Use Scenario: Hosting U-Boot or OpenWrt bootloader in carrier-grade edge routers where firmware resilience impacts network uptime SLA. IC Role / Device Role / Timing Role: Dual-image storage partition (active/inactive) managed via block-erase; supports atomic firmware rollback. Use Value: 64 KB uniform block size aligns with common bootloader partition schemes; Chip-Erase (140 ms typ.) enables factory reset in <200 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV800CTTC-90G | 3.0 V supply (2.7–3.6 V), 90 ns access, 100K cycles, same x16 interface and JEDEC command set. | Requires level-shifting in 1.8 V systems; higher active current (15 mA vs. 5 mA) increases thermal load. | Select when legacy 3 V infrastructure exists and power efficiency is secondary to supply voltage compatibility. |
| S29GL064N90TFI010 | 3.0 V supply, 64 Mbit density (4M × 16), 90 ns access, 100K cycles, supports CFI and common flash interface. | Higher density enables multi-firmware image storage; not pin-compatible due to 56-pin TSOP package vs. 48-ball WFBGA. | Select when board redesign is acceptable and future-proofing for larger firmware images is required. |
Compared with MX29LV800CTTC-90G and S29GL064N90TFI010, the SST39WF800A-90-4C-B3KE uniquely delivers 1.8 V operation with sub-5 µA standby and fixed SuperFlash timing-critical for battery-constrained and thermally sensitive embedded systems where voltage scaling and predictability outweigh density or legacy footprint needs.
Availability
SST39WF800A-90-4C-B3KE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, automotive infotainment boot code, network router bootloader storage, and portable instrumentation requiring stable component supply across extended lifecycle programs.
Supply support for SST39WF800A-90-4C-B3KE 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), acquired by Microchip Technology in 2010, specialized in high-reliability NOR flash memory using proprietary SuperFlash technology for embedded applications.
The SST39WF800A-90-4C-B3KE belongs to SST's Multi-Purpose Flash (MPF) product line, designed specifically for low-voltage, high-endurance firmware and configuration storage in space-constrained industrial and portable electronics.
FAQ
What is the operating voltage range for the SST39WF800A-90-4C-B3KE?
The SST39WF800A-90-4C-B3KE operates from 1.65 V to 1.95 V, optimized for 1.8 V nominal systems. This single-supply range eliminates need for external VPP generation or level shifters, and is validated across commercial (0°C to +70°C) and industrial (–40°C to +85°C) temperature grades. The SST39WF800A-90-4C-B3KE maintains full functionality-including 90 ns read access and 28 µs word-program-across this entire voltage window.
Does the SST39WF800A-90-4C-B3KE support JEDEC-standard commands?
Yes, the SST39WF800A-90-4C-B3KE fully complies with JEDEC Standard JESD21-C for x16 flash pinouts and command sets. It implements mandatory Software Data Protection (SDP) with three-byte unlock for program and six-byte sequences for sector/block/chip erase, plus CFI Query mode (0051H/0052H/0059H) for automated parameter discovery. The SST39WF800A-90-4C-B3KE also supports Product Identification mode to read Manufacturer ID (00BFH) and Device ID (273FH).
How is write completion detected on the SST39WF800A-90-4C-B3KE?
The SST39WF800A-90-4C-B3KE provides two hardware-supported methods: Data# Polling (DQ7) and Toggle Bit (DQ6). During program, DQ7 toggles until completion, then outputs true data; during erase, DQ7 reads '0' then '1'. DQ6 toggles between 0 and 1 during operation and stops upon completion. Both signals are valid after the fourth WE#/CE# pulse (program) or sixth pulse (erase), enabling efficient polling without timeouts. The SST39WF800A-90-4C-B3KE guarantees deterministic behavior per JEDEC timing diagrams.
What package types are offered for the SST39WF800A-90-4C-B3KE?
The SST39WF800A-90-4C-B3KE is packaged in a 48-ball WFBGA (5 mm × 6 mm), as indicated by the 'B3KE' suffix. This micro-package features 0.5 mm ball pitch and two VSS balls (E1, H1) for low-inductance grounding. While the datasheet notes availability in TFBGA and XFLGA variants, the B3KE variant specifically denotes the WFBGA option. All packages are RoHS-compliant and lead-free, qualified for reflow up to 260°C for 10 seconds.
Is the SST39WF800A-90-4C-B3KE suitable for battery-powered applications?
Yes-the SST39WF800A-90-4C-B3KE is engineered for ultra-low-power operation: 5 mA typical active current at 5 MHz and only 5 µA typical standby current. Its 1.65–1.95 V supply range matches common lithium coin-cell and single-cell Li-ion systems, and its fast 28 µs word-program minimizes active time. Combined with >100-year data retention, the SST39WF800A-90-4C-B3KE supports decade-long deployments in energy-harvesting sensors and wearable medical devices without maintenance.
SST39WF800A-90-4C-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA
SST39WF800A-90-4C-B3KE FAQ
1.How can I place an order for SST39WF800A-90-4C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39WF800A-90-4C-B3KE 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-90-4C-B3KE reliable?
The price and inventory of SST39WF800A-90-4C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39WF800A-90-4C-B3KE is usually 5 days.
3.What payment methods are accepted for SST39WF800A-90-4C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39WF800A-90-4C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39WF800A-90-4C-B3KE?
SST39WF800A-90-4C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39WF800A-90-4C-B3KE 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-90-4C-B3KE?
For technical support, including SST39WF800A-90-4C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39WF800A-90-4C-B3KE requirements.
6.How does Aetrix verify that SST39WF800A-90-4C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39WF800A-90-4C-B3KE 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-90-4C-B3KE meets industry standards.
7.What is the process for return or replacement of SST39WF800A-90-4C-B3KE?
All SST39WF800A-90-4C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39WF800A-90-4C-B3KE, 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-90-4C-B3KE part is unused and in its original packaging.
Return procedure for SST39WF800A-90-4C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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