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Microchip Technology SST39VF802C-70-4C-MAQE
- Part No.:
- SST39VF802C-70-4C-MAQE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-WFBGA
- Datasheet:
-
SST39VF802C-70-4C-MAQE.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48WFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,397
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Product details
Overview
SST39VF802C-70-4C-MAQE 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 at 2.7–3.6 V, delivers 70 ns read access time, supports hardware block protection on the top 8 KWord boot sector, and features sector/block/chip erase with erase-suspend/resume capability.
For engineers reviewing the SST39VF802C-70-4C-MAQE datasheet, SST39VF802C-70-4C-MAQE pinout, SST39VF802C-70-4C-MAQE application, or SST39VF802C-70-4C-MAQE equivalent, this page provides verified technical context, JEDEC-compliant x16 interface details, boot-block protection mapping, SuperFlash endurance/reliability data, and real-world use cases in firmware-updatable industrial controllers and legacy BIOS modules.
Technical Context
This device implements a CMOS SuperFlash® architecture with split-gate cells and thick-oxide tunneling injectors, enabling fixed 7 µs word-program and 18 ms sector/block-erase times independent of cycle count. Its JEDEC-standard x16 parallel interface includes dedicated RY/BY#, WP#, and RST# pins for system-level control and status monitoring.
The SST39VF802C-70-4C-MAQE uses AMS = A18 addressing for block selection and supports three software-protection modes: hardware WP#-based top-boot block lock, JEDEC-compliant Software Data Protection (SDP), and factory/user Security ID segments. It conforms to CFI Query standard (0051H/0052H/0059H) for automatic configuration detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 organization), directly maps to 1 MB of 16-bit addressable space |
| Read Access Time | 70 ns - enables direct interfacing with 14 MHz bus clocks 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 - supports field firmware updates over full product lifecycle |
| Data Retention | >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 update of bootloader vs. application code |
| Protection Scheme | Hardware top-boot block protection (7E000H–7FFFFH) + SDP + Security ID - prevents accidental corruption of critical startup code |
Pinout & Package
Package: 48-ball WFBGA (4 mm × 6 mm, MAQE suffix), RoHS-compliant, bottom-side ball layout optimized for high-density PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | A0–A17 select 512K words; A18 (AMS) selects top/bottom boot block during erase operations |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during write; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write; controls address latch timing |
| OE# | Output Enable | Active-low output gate; used with CE# to control data bus timing and reduce power during partial reads |
| WE# | Write Enable | Active-low write strobe; latches data on rising edge; initiates internal program/erase after sixth pulse |
| WP# | Write Protect | Active-low hardware lock for top 8 KWord boot block (7E000H–7FFFFH); floating = unprotected |
| RST# | Reset | Active-low hardware reset; forces return to read mode and aborts in-progress erase/program |
| RY/BY# | Ready/Busy# | Open-drain status indicator; pulled low during erase/program; requires external 10–100 kΩ pull-up |
| VDD | Power Supply | 2.7–3.6 V core supply; powers all logic and flash array operations |
| VSS | Ground | System reference ground for all I/O and core circuitry |
| NC | No Connection | Unbonded balls (e.g., A1, B1, C1, D1, E1, F1, G1, H1, J1, K1, L1, A2, B2, C2, D2, E2, F2, G2, H2, J2, K2, L2, A3, B3, C3, D3, E3, F3, G3, H3, J3, K3, L3, A4, B4, C4, D4, E4, F4, G4, H4, J4, K4, L4, A5, B5, C5, D5, E5, F5, G5, H5, J5, K5, L5, A6) - no internal connection; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows real-time reading from non-suspended sectors during active erase - essential for interrupt-driven firmware updates |
| Auto Low Power Mode | Reduces active read current from 5 mA to 3 µA after valid access - cuts standby power in always-on embedded nodes |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable segment - enables secure device authentication and version tracking |
| CFI Query Support | Standardized JEDEC CFI table (0051H/0052H/0059H) - enables automatic driver initialization without hard-coded part assumptions |
| Toggle Bit & Data# Polling | Dual-status detection (DQ6/DQ7) with guaranteed timing - eliminates need for fixed delay loops in host firmware |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Module |
|---|---|
Use Scenario: Storing upgradable ladder logic and I/O configuration in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into CPU address space; accessed via 16-bit parallel bus with CE#/OE# handshaking. Use Value: Top-boot block protection prevents accidental overwrite of safety-critical startup routines during remote firmware patches. |
Use Scenario: Replacing obsolete 28Fxxx-series BIOS chips in industrial motherboards requiring backward-compatible pinout and timing. IC Role / Device Role / Timing Role: x16 boot ROM replacement with 70 ns access matching original timing budgets. Use Value: JEDEC-standard command set and CFI support allows drop-in integration with existing AMI/Phoenix BIOS firmware stacks. |
| Medical Device Bootloader | Telecom Line Card Configuration |
Use Scenario: Secure bootloader storage in FDA-class II diagnostic equipment requiring audit-trail firmware updates. IC Role / Device Role / Timing Role: Dual-role memory: top 8 KWord holds signed bootloader; remainder stores encrypted application images. Use Value: Factory Security ID + user-programmable ID segment enables cryptographic binding between hardware and firmware signing keys. |
Use Scenario: Storing FPGA configuration bitstreams and DSP parameter sets in carrier-grade DSLAM line cards. IC Role / Device Role / Timing Role: Parallel interface memory accessed by local microcontroller during power-up initialization sequence. Use Value: Sector-erase granularity (2 KWord) permits independent reprogramming of per-port DSP settings without disturbing global configuration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF801C-70-4C-MAQE | Bottom-boot architecture (00000H–01FFFH protected); identical timing, voltage, and package | Used where bootloader resides in lowest memory region instead of top | Select only if board design requires bottom-boot protection mapping |
| MX29LV800CTTC-70G | Same density/timing but uses different command set; no CFI Query; lacks Security ID and erase-suspend | Lower-cost alternative where advanced features are unused and firmware can be adapted | Choose when cost sensitivity outweighs need for suspend/resume or secure ID capabilities |
Compared with SST39VF802C-70-4C-MAQE, the SST39VF801C variant offers identical performance but inverted boot-block location, while the MX29LV800CTTC requires firmware changes due to non-CFI command structure and lacks security and suspend functionality - making SST39VF802C-70-4C-MAQE optimal for secure, field-upgradable designs.
Availability
SST39VF802C-70-4C-MAQE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy BIOS replacement, medical bootloader deployment, and telecom line card configuration requiring stable component supply across multi-year production cycles.
Supply support for SST39VF802C-70-4C-MAQE 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 is a global provider of microcontrollers, analog components, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST39VF802C-70-4C-MAQE belongs to the Multi-Purpose Flash Plus (MPF+) family, engineered specifically for reliable, low-voltage, field-upgradable embedded firmware storage in industrial, medical, and communications equipment.
FAQ
What is the boot block protection scheme of the SST39VF802C-70-4C-MAQE?
The SST39VF802C-70-4C-MAQE implements hardware top-boot block protection covering address range 7E000H–7FFFFH (8 KWord). When WP# is grounded, program and erase operations are disabled in this region. This ensures bootloader integrity during system updates. The SST39VF802C-70-4C-MAQE differs from SST39VF801C, which protects the bottom 8 KWord (00000H–01FFFH).
Does the SST39VF802C-70-4C-MAQE support CFI Query mode?
Yes, the SST39VF802C-70-4C-MAQE supports JEDEC-standard Common Flash Interface (CFI) Query mode. Entering via 555H/AAH → 2AAH/55H → 555H/98H returns ASCII "QRY" at addresses 10H–12H and system interface data at 1BH–20H. This enables automatic driver detection and eliminates hardcoded memory initialization sequences in host firmware.
How does the erase-suspend feature work in the SST39VF802C-70-4C-MAQE?
The SST39VF802C-70-4C-MAQE supports Erase-Suspend via B0H command, pausing an active sector or block erase to allow reads from non-suspended regions. During suspend, DQ2 toggles for suspended sectors while DQ6 = 1; normal reads resume within 20 µs. Resume uses 30H command. This enables real-time diagnostics or interrupt handling without aborting long erase cycles.
What is the purpose of the Security ID feature in the SST39VF802C-70-4C-MAQE?
The SST39VF802C-70-4C-MAQE includes a 136-word Security ID space: first 8 words factory-programmed with a unique 128-bit ID, next 128 words user-programmable. Accessed via 555H/AAH → 2AAH/55H → 555H/88H, it enables device authentication and firmware binding. Once locked with 85H command, the user segment becomes read-only - a key requirement for medical and industrial anti-counterfeiting.
Can the SST39VF802C-70-4C-MAQE operate at 2.7 V during program/erase operations?
Yes, the SST39VF802C-70-4C-MAQE is fully specified for program and erase operations across 2.7–3.6 V. Internal charge pumps generate required programming voltages, eliminating need for external VPP. All timing parameters - including 7 µs word-program and 18 ms sector-erase - are guaranteed over this full voltage range, enabling robust operation in battery-backed or wide-input industrial power supplies.
SST39VF802C-70-4C-MAQE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-WFBGA
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WFBGA (6x4)
SST39VF802C-70-4C-MAQE FAQ
1.How can I place an order for SST39VF802C-70-4C-MAQE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF802C-70-4C-MAQE 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-70-4C-MAQE reliable?
The price and inventory of SST39VF802C-70-4C-MAQE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF802C-70-4C-MAQE is usually 5 days.
3.What payment methods are accepted for SST39VF802C-70-4C-MAQE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF802C-70-4C-MAQE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF802C-70-4C-MAQE?
SST39VF802C-70-4C-MAQE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF802C-70-4C-MAQE 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-70-4C-MAQE?
For technical support, including SST39VF802C-70-4C-MAQE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF802C-70-4C-MAQE requirements.
6.How does Aetrix verify that SST39VF802C-70-4C-MAQE is sourced from the original manufacturer or authorized distributors?
All SST39VF802C-70-4C-MAQE 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-70-4C-MAQE meets industry standards.
7.What is the process for return or replacement of SST39VF802C-70-4C-MAQE?
All SST39VF802C-70-4C-MAQE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF802C-70-4C-MAQE, 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-70-4C-MAQE part is unused and in its original packaging.
Return procedure for SST39VF802C-70-4C-MAQE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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