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Microchip Technology SST39VF802C-70-4I-MAQE-T
- Part No.:
- SST39VF802C-70-4I-MAQE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-WFBGA
- Datasheet:
-
SST39VF802C-70-4I-MAQE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48WFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
SST39VF802C-70-4I-MAQE-T from Microchip Technology is a 8 Mbit (512K × 16) Multi-Purpose Flash Plus memory IC with SuperFlash® technology, designed for embedded program/data storage in microcontroller-based systems. It operates from 2.7–3.6 V, delivers 70 ns read access time, supports sector/block/chip erase, and features hardware write protection via WP# pin for top-boot block (7E000H–7FFFFH).
For engineers reviewing the SST39VF802C-70-4I-MAQE-T datasheet, SST39VF802C-70-4I-MAQE-T pinout, SST39VF802C-70-4I-MAQE-T application, or SST39VF802C-70-4I-MAQE-T equivalent, this page provides verified technical context, JEDEC-compliant x16 interface details, boot-block protection mapping, SuperFlash endurance/reliability metrics, and real-world use cases in industrial firmware storage and legacy system upgrades.
Technical Context
This device implements a CMOS SuperFlash® architecture with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count-unlike conventional flash. It conforms to JEDEC-standard x16 pinouts and command sets, supporting standard microprocessor bus interfacing without protocol translation.
It integrates three status detection methods-Data# Polling (DQ7), Toggle Bits (DQ6/DQ2), and open-drain RY/BY#-for precise end-of-write monitoring. Hardware block protection targets the top 8 KWord (7E000H–7FFFFH), while software data protection requires validated six-byte command sequences for erase and three-byte sequences for program operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 organization), directly maps to 16-bit data bus with no address multiplexing required. |
| Read Access Time | 70 ns maximum - enables direct connection to 14 MHz microcontrollers without wait states. |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic systems and tolerant of brown-out conditions down to 2.7 V. |
| Endurance | 100,000 program/erase cycles (typical) - supports field firmware updates over full product lifecycle. |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage applications. |
| Erase Architecture | Uniform 2 KWord sectors + flexible blocks (1×8K, 2×4K, 1×16K, 15×32K) - enables granular firmware partitioning. |
| Write Protection | Hardware top-boot block protection (7E000H–7FFFFH) activated when WP# = low - prevents accidental bootloader corruption. |
Pinout & Package
Package: 48-ball WFBGA (4 mm × 6 mm, MAQE suffix), RoHS-compliant, surface-mountable with fine-pitch ball layout optimized for high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus (A0–A18); AMS = A18 selects most significant address for sector/block erase targeting. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; outputs latched during read, inputs latched during write; tri-state when CE# or OE# high. |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high; required low for all write/erase operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; must be low with CE# low to enable read data output. |
| WE# | Write Enable | Active-low control for write cycles; latches address/data on falling/rising edges per JEDEC timing; initiates internal program/erase. |
| WP# | Write Protect | Active-low hardware lock for top 8 KWord boot block; grounded to prevent inadvertent erase/program of bootloader region. |
| RST# | Reset | Active-low hardware reset; forces return to read mode and aborts in-progress operations; requires TRP pulse width ≥ 100 ns. |
| RY/BY# | Ready/Busy# | Open-drain status indicator; pulled low during erase/program; requires external 10–100 kΩ pull-up to VDD. |
| VDD | Power Supply | 2.7–3.6 V supply; powers core logic and SuperFlash array; noise filtering recommended per datasheet. |
| VSS | Ground | Digital ground reference; two dedicated VSS pins ensure stable return path for I/O and core currents. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide injector enables fixed 18 ms sector/block erase and 7 µs word-program - no performance degradation over lifetime. |
| Erase-Suspend/Resume | Allows temporary halt of erase to read/program non-suspended sectors - critical for real-time firmware update without full interruption. |
| Security ID Space | Factory-programmed 128-bit ID + 128-word user-programmable space - supports secure device authentication and traceability. |
| Auto Low Power Mode | Reduces active read current from 5 mA to 3 µA after valid access - cuts dynamic power by >99% during idle polling intervals. |
| Common Flash Interface (CFI) | JEDEC CFI Query mode (entry via 98H at 555H) provides standardized parameter tables - simplifies driver development across flash vendors. |
Applications
| Industrial Control Firmware Storage | Legacy System BIOS/UEFI Module Replacement |
|---|---|
|
Use Scenario: Storing field-upgradable ladder logic and configuration parameters in PLCs operating in temperature-stressed environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Nonvolatile program memory mapped to microcontroller's 16-bit address/data bus; accessed via standard read/write strobes with RY/BY# handshaking. Use Value: Top-boot hardware protection prevents corruption of safety-critical startup code during remote firmware patches; 100-year retention ensures data integrity across equipment lifetimes. |
Use Scenario: Replacing obsolete 8 Mbit x16 flash in aging medical imaging chassis requiring BIOS revision support without board redesign. IC Role / Device Role / Timing Role: Drop-in JEDEC-compliant replacement for legacy parallel NOR flash; identical 48-ball WFBGA footprint and pinout as original. Use Value: 70 ns access time meets original timing budget; SuperFlash energy efficiency reduces thermal load in densely packed backplane modules. |
| Automotive Body Control Module (BCM) Bootloader | Point-of-Sale Terminal Configuration Memory |
|
Use Scenario: Holding secure bootloader code in automotive BCMs where ASIL-B compliance mandates robust write protection and tamper resistance. IC Role / Device Role / Timing Role: Primary boot memory with WP# hardwired to ground; Security ID used for cryptographic key binding during secure boot verification. Use Value: Factory-programmed 128-bit ID enables unique device identity; top-boot block protection isolates bootloader from application firmware updates. |
Use Scenario: Storing localized language packs, tax tables, and peripheral configuration in global POS terminals deployed across multiple regulatory regions. IC Role / Device Role / Timing Role: Field-programmable configuration store accessed via 16-bit parallel interface; sector-erase allows regional table updates without full reflash. Use Value: Uniform 2 KWord sectors enable atomic updates of jurisdiction-specific data; 100,000-cycle endurance supports multi-year deployment with quarterly revisions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF801C-70-4I-MAQE-T | Bottom-boot architecture (00000H–01FFFH protected); otherwise identical voltage, timing, and package. | Used where bootloader resides in lowest memory region instead of top; incompatible for top-boot designs without address remapping. | Select only if system firmware expects bottom-boot protection; not interchangeable without hardware or software adaptation. |
| MX29LV800CTTI-70G | 70 ns access, 3.0–3.6 V operation, 48-pin TSOP (not WFBGA); lacks Auto Low Power mode and Erase-Suspend. | Requires PCB footprint change; suitable for cost-sensitive industrial boards where WFBGA is unnecessary. | Choose for TSOP-based legacy designs; avoid if board uses WFBGA or requires low-power polling or suspend/resume capability. |
Compared with SST39VF802C-70-4I-MAQE-T, the SST39VF801C variant shifts hardware protection to the bottom block-requiring firmware alignment changes-while the MX29LV800CTTI offers TSOP compatibility but sacrifices SuperFlash advantages like fixed timing and energy efficiency.
Availability
SST39VF802C-70-4I-MAQE-T is available at Aetrix Electronics and suitable for industrial control firmware storage, legacy system BIOS replacement, automotive bootloader applications, and point-of-sale terminal configuration requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF802C-70-4I-MAQE-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
Microchip Technology acquired Silicon Storage Technology (SST) in 2016 and now manufactures and supports the SuperFlash® family of NOR flash devices, emphasizing reliability, low power, and long-term supply assurance.
The SST39VF802C belongs to the Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for embedded systems requiring robust, field-upgradable nonvolatile storage with deterministic timing and hardware-level security features.
FAQ
What is the boot block configuration of SST39VF802C-70-4I-MAQE-T?
The SST39VF802C-70-4I-MAQE-T implements top-boot block protection, covering the highest 8 KWord address range (7E000H–7FFFFH). This region is hardware-protected when the WP# pin is driven low, making it ideal for safeguarding bootloader code. The SST39VF802C-70-4I-MAQE-T differs from the SST39VF801C variant, which protects the bottom 8 KWord (00000H–01FFFH).
Does SST39VF802C-70-4I-MAQE-T require an external VPP voltage for programming?
No, the SST39VF802C-70-4I-MAQE-T does not require an external VPP voltage. It generates internal high-voltage programming pulses using its on-chip charge pump, operating solely from the 2.7–3.6 V VDD supply. This eliminates the need for auxiliary power rails and simplifies system design compared to older flash technologies.
How is write completion detected on SST39VF802C-70-4I-MAQE-T?
The SST39VF802C-70-4I-MAQE-T supports three concurrent write completion detection methods: Data# Polling (DQ7 toggles until complete), Toggle Bits (DQ6 toggles during operation), and Ready/Busy# (RY/BY# open-drain pin pulled low during erase/program). All are valid after defined WE# edge counts per operation type, enabling flexible host-side timing control.
Is SST39VF802C-70-4I-MAQE-T pin-compatible with SST39VF801C-70-4I-MAQE-T?
Yes, the SST39VF802C-70-4I-MAQE-T is pin-compatible with the SST39VF801C-70-4I-MAQE-T in the same WFBGA package (MAQE), sharing identical pin assignments, voltage ranges, and timing. However, their boot block locations differ (top vs. bottom), so firmware and hardware WP# routing must align with the selected variant's protection scheme.
What package type does SST39VF802C-70-4I-MAQE-T use?
The SST39VF802C-70-4I-MAQE-T uses a 48-ball WFBGA (Wafer-Level Fine-Pitch Ball Grid Array) package measuring 4 mm × 6 mm, designated by the "MAQE" suffix. This ultra-compact, RoHS-compliant package supports high-density PCB layouts and is distinct from the TSOP and TFBGA variants offered in the same product family.
SST39VF802C-70-4I-MAQE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-WFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 10µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WFBGA (6x4)
SST39VF802C-70-4I-MAQE-T FAQ
1.How can I place an order for SST39VF802C-70-4I-MAQE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF802C-70-4I-MAQE-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 SST39VF802C-70-4I-MAQE-T reliable?
The price and inventory of SST39VF802C-70-4I-MAQE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF802C-70-4I-MAQE-T is usually 5 days.
3.What payment methods are accepted for SST39VF802C-70-4I-MAQE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF802C-70-4I-MAQE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF802C-70-4I-MAQE-T?
SST39VF802C-70-4I-MAQE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF802C-70-4I-MAQE-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 SST39VF802C-70-4I-MAQE-T?
For technical support, including SST39VF802C-70-4I-MAQE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF802C-70-4I-MAQE-T requirements.
6.How does Aetrix verify that SST39VF802C-70-4I-MAQE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF802C-70-4I-MAQE-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 SST39VF802C-70-4I-MAQE-T meets industry standards.
7.What is the process for return or replacement of SST39VF802C-70-4I-MAQE-T?
All SST39VF802C-70-4I-MAQE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF802C-70-4I-MAQE-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 SST39VF802C-70-4I-MAQE-T part is unused and in its original packaging.
Return procedure for SST39VF802C-70-4I-MAQE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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