Microchip Technology SST39VF801C-70-4C-MAQE-T
- Part No.:
- SST39VF801C-70-4C-MAQE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-WFBGA
- Datasheet:
-
SST39VF801C-70-4C-MAQE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48WFBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST39VF801C-70-4C-MAQE-T from Microchip Technology is a 8 Mbit (512K × 16) CMOS Multi-Purpose Flash Plus memory IC with SuperFlash® technology, operating at 2.7–3.6 V, featuring 70 ns read access time, hardware block protection for bottom 8 KWord boot sector, and JEDEC-standard x16 parallel interface. It serves as nonvolatile program/data storage in embedded controllers, BIOS firmware modules, and industrial HMI systems.
For engineers reviewing the SST39VF801C-70-4C-MAQE-T datasheet, SST39VF801C-70-4C-MAQE-T pinout, SST39VF801C-70-4C-MAQE-T application, or SST39VF801C-70-4C-MAQE-T equivalent, key selection criteria include bottom-boot block architecture, TSOP-48 package compatibility, 100,000-cycle endurance, RY/BY# status signaling, and software/hardware write protection schemes.
Technical Context
The SST39VF801C-70-4C-MAQE-T implements a split-gate SuperFlash cell with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its command-set architecture supports JEDEC-standard parallel flash operations including Word-Program, Sector-Erase (2 KWord uniform), Block-Erase (flexible 4–32 KWord blocks), Chip-Erase, and Erase-Suspend/Resume.
It integrates dual status detection-Data# Polling (DQ7) and Toggle Bits (DQ6/DQ2)-plus open-drain RY/BY# output for real-time operation monitoring. Hardware protection is implemented via WP# pin controlling bottom 8 KWord boot block (00000H–01FFFH), while RST# provides hardware reset to Read mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 organization), directly maps to 16-bit data bus for microcontroller boot code execution |
| Read Access Time | 70 ns typical - enables direct execution from flash (XIP) in 10–15 MHz system buses without wait states |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and tolerant of brown-out conditions down to 2.7 V |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over 10+ years in industrial control applications |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage for medical device configuration or automotive calibration data |
| Active Current | 5 mA typical at 5 MHz - low active power enables battery-backed operation in portable diagnostic equipment |
| Standby Current | 3 µA typical - allows deep-sleep retention in always-on IoT gateways with minimal quiescent drain |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard JEDEC x16 parallel flash footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K × 16 addressing; AMS = A18 for sector/block selection |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with internal latching; tri-state when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select - enables device for read/write; high = standby mode (3 µA) |
| OE# | Output Enable | Active-low output gate - controls data bus drive; used with CE# for read timing |
| WE# | Write Enable | Active-low write strobe - latches address/data on falling/rising edges per JEDEC command sequence |
| WP# | Write Protect | Active-low hardware lock for bottom 8 KWord boot block (00000H–01FFFH); floating = unprotected |
| RST# | Reset | Active-low hardware reset - forces return to Read mode; terminates in-progress erase/program |
| RY/BY# | Ready/Busy# | Open-drain status output - low = active erase/program; requires external 10–100 kΩ pull-up |
| VDD | Power Supply | 2.7–3.6 V supply - powers core logic and SuperFlash array; no separate VPP required |
| VSS | Ground | Reference ground for all signals and internal charge pumps |
| NC | No Connection | Unbonded pins (e.g., A13, A14 in TSOP layout) - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide injector enables fixed 7 µs word-program and 18 ms sector-erase times across full 100k-cycle lifetime |
| Bottom Boot Block Protection | Hardware WP#-controlled lock for 8 KWord (00000H–01FFFH) - preserves bootloader integrity during field firmware updates |
| Erase-Suspend/Resume | Allows temporary halt of sector/block erase to read or program other regions - critical for real-time OS firmware patching |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable space - enables secure device authentication and traceability |
| CFI Compliance | Integrated Common Flash Interface - enables automatic detection and configuration by BIOS/bootloader without hard-coded parameters |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing and updating ladder logic programs and I/O mapping tables in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile parallel flash memory providing XIP-capable boot code and runtime parameter storage with hardware write protection. Use Value: Bottom-boot architecture ensures bootloader remains intact during remote firmware upgrades; 100-year data retention guarantees calibration data persistence across equipment lifecycle. | Use Scenario: Holding FDA-mandated device configuration profiles, calibration coefficients, and audit logs in portable ultrasound and infusion pump systems. IC Role / Device Role / Timing Role: JEDEC-compliant x16 flash acting as secure, tamper-resistant storage for regulatory-critical parameters. Use Value: Security ID feature enables unique device binding; RY/BY# pin integration simplifies real-time status monitoring in safety-critical firmware update sequences. |
| Automotive Body Control Module (BCM) | Networking Equipment Boot Image |
Use Scenario: Storing lighting control algorithms, door module diagnostics, and CAN message routing tables in 12 V automotive BCMs. IC Role / Device Role / Timing Role: 2.7–3.6 V tolerant flash memory interfacing directly with 3.3 V microcontrollers in harsh electrical environments. Use Value: Wide voltage range accommodates automotive battery transients; hardware WP# prevents accidental corruption of safety-critical boot code during ECU reprogramming. | Use Scenario: Hosting primary and fallback boot images for managed Ethernet switches and wireless access points requiring zero-downtime firmware rollbacks. IC Role / Device Role / Timing Role: Parallel flash memory delivering 70 ns read access to support fast cold boot and failover recovery. Use Value: Sector-erase capability enables atomic image swaps; CFI compliance allows generic bootloader support across multiple hardware 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 |
|---|---|---|---|
| SST39VF802C-70-4C-MAQE-T | Top-boot architecture (7E000H–7FFFFH protected block); identical timing, voltage, and command set | Used where bootloader resides in top sector instead of bottom; not interchangeable without PCB address decoding changes | Select only if design requires top-boot protection; pinout and interface are identical but boot block location differs |
| MX29LV800CTTI-70G | 70 ns access, 8 Mbit x16, 3.0–3.6 V supply; lacks Erase-Suspend and Security ID; uses different command set | Requires firmware adaptation for erase/program commands; no hardware boot block protection - relies on software locking | Choose for cost-sensitive designs where suspend/resume and secure ID are unnecessary; verify bootloader compatibility before substitution |
Compared with SST39VF802C-70-4C-MAQE-T, the SST39VF801C-70-4C-MAQE-T provides bottom-boot protection essential for legacy bootloader layouts, while MX29LV800CTTI-70G offers lower cost at the expense of advanced features like suspend/resume and hardware security - making it suitable only for static firmware deployments.
Availability
SST39VF801C-70-4C-MAQE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and automotive body control module applications requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF801C-70-4C-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with leadership in flash technology through its acquisition of Silicon Storage Technology (SST).
The SST39VF801C-70-4C-MAQE-T belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for embedded systems requiring reliable, low-voltage, high-endurance parallel NOR flash with integrated hardware protection and real-time status feedback.
FAQ
What is the boot block configuration of the SST39VF801C-70-4C-MAQE-T?
The SST39VF801C-70-4C-MAQE-T implements bottom-boot block protection, securing the lowest 8 KWord (00000H–01FFFH) from inadvertent erase/program when WP# is asserted low. This architecture ensures bootloader integrity in systems where startup code resides at the base of the memory map. The SST39VF801C-70-4C-MAQE-T does not support top-boot configuration - that functionality is exclusive to the SST39VF802C variant.
Does the SST39VF801C-70-4C-MAQE-T require an external VPP voltage for programming?
No, the SST39VF801C-70-4C-MAQE-T does not require an external VPP voltage. It generates all necessary high-voltage programming pulses internally using its on-chip charge pump, operating solely from the 2.7–3.6 V VDD supply. This eliminates the need for additional power rails or voltage translators, simplifying board design and reducing BOM cost. The SST39VF801C-70-4C-MAQE-T datasheet confirms VPP min/max values as 0000H, indicating no VPP pin or external voltage requirement.
How does the RY/BY# pin function on the SST39VF801C-70-4C-MAQE-T?
The RY/BY# pin on the SST39VF801C-70-4C-MAQE-T is an open-drain output that drives low during active Program or Erase operations and floats high (requiring external 10–100 kΩ pull-up) when ready. It provides hardware-level status indication synchronized with internal timing, enabling interrupt-driven firmware flow without polling overhead. Unlike DQ6/DQ7 status bits, RY/BY# reflects true device readiness and is valid immediately after the final WE# pulse in any command sequence. The SST39VF801C-70-4C-MAQE-T specification mandates this external pull-up for proper logic-level interpretation.
Can the SST39VF801C-70-4C-MAQE-T be used in place of the SST39VF802C-70-4C-MAQE-T?
No, the SST39VF801C-70-4C-MAQE-T cannot be used as a direct replacement for the SST39VF802C-70-4C-MAQE-T due to fundamental boot block architecture differences: SST39VF801C protects the bottom 8 KWord (00000H–01FFFH), while SST39VF802C protects the top 8 KWord (7E000H–7FFFFH). Substituting them without modifying address decoding logic or bootloader placement will result in unprotected firmware execution or failed updates. The SST39VF801C-70-4C-MAQE-T and SST39VF802C-70-4C-MAQE-T share identical pinouts and timing but differ critically in protected region location.
What is the purpose of the Security ID feature in the SST39VF801C-70-4C-MAQE-T?
The Security ID feature in the SST39VF801C-70-4C-MAQE-T provides a 128-bit factory-programmed identifier plus 128 words of user-programmable space, enabling device authentication, anti-cloning, and supply chain traceability. The factory segment is permanently locked at manufacture; the user segment can be programmed once and then locked via the User Sec ID Program Lock-Out command. Neither segment is erasable. This feature supports secure boot verification and regulatory compliance in medical and industrial applications where device identity assurance is mandatory. The SST39VF801C-70-4C-MAQE-T implements this via dedicated 3-byte command entry (88H) and separate lock-out protocol.
SST39VF801C-70-4C-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WFBGA (6x4)
SST39VF801C-70-4C-MAQE-T FAQ
1.How can I place an order for SST39VF801C-70-4C-MAQE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF801C-70-4C-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 SST39VF801C-70-4C-MAQE-T reliable?
The price and inventory of SST39VF801C-70-4C-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 SST39VF801C-70-4C-MAQE-T is usually 5 days.
3.What payment methods are accepted for SST39VF801C-70-4C-MAQE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF801C-70-4C-MAQE-T transactions.
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4.How is shipping managed for SST39VF801C-70-4C-MAQE-T?
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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 SST39VF801C-70-4C-MAQE-T?
For technical support, including SST39VF801C-70-4C-MAQE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF801C-70-4C-MAQE-T requirements.
6.How does Aetrix verify that SST39VF801C-70-4C-MAQE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF801C-70-4C-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 SST39VF801C-70-4C-MAQE-T meets industry standards.
7.What is the process for return or replacement of SST39VF801C-70-4C-MAQE-T?
All SST39VF801C-70-4C-MAQE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF801C-70-4C-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 SST39VF801C-70-4C-MAQE-T part is unused and in its original packaging.
Return procedure for SST39VF801C-70-4C-MAQE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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