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Microchip Technology SST39VF6402B-70-4I-B1KE
- Part No.:
- SST39VF6402B-70-4I-B1KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF6402B-70-4I-B1KE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,907
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Product details
Overview
SST39VF6402B-70-4I-B1KE from Microchip is a 64 Mbit (4M × 16) CMOS Multi-Purpose Flash Plus (MPF+) memory IC with top-block hardware write protection, 70 ns read access time, and single 2.7–3.6 V supply operation. It supports sector/block/chip erase, erase-suspend/resume, and Security ID functionality, and is used in embedded firmware storage for industrial control panels requiring field-upgradable code retention.
For engineers reviewing the SST39VF6402B-70-4I-B1KE datasheet, SST39VF6402B-70-4I-B1KE pinout, SST39VF6402B-70-4I-B1KE application, or SST39VF6402B-70-4I-B1KE equivalent, key selection considerations include top-boot block protection address range (3F8000H–3FFFFFH), TSOP-48/TBGA-48 package compatibility, JEDEC x16 pinout compliance, and SuperFlash technology's fixed 7 µs word-program timing independent of endurance cycles.
Technical Context
The SST39VF6402B-70-4I-B1KE implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling guaranteed 100,000 program/erase cycles and >100-year data retention. Its command-set is JEDEC-standard compatible for x16 asynchronous flash, supporting software data protection via six-byte sequences for erase and three-byte sequences for program.
Hardware features include dedicated WP# for top 32 KWord block protection, RST# for hardware reset to read mode, and dual status detection (DQ7 Data# Polling and DQ6/DQ2 Toggle Bits) for end-of-write verification. The device operates across –40°C to +85°C (Industrial grade) and supports CFI Query mode for runtime device characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4M × 16 (64 Mbit); enables 16-bit parallel data bus interface without external data-width conversion. |
| Read Access Time | 70 ns; ensures sub-14 MHz synchronous bus timing compatibility in legacy microcontroller systems. |
| Supply Voltage | 2.7–3.6 V; allows direct interfacing with 3.3 V logic families and eliminates need for level shifters. |
| Endurance | 100,000 cycles (typical); supports frequent firmware updates in programmable logic controllers over 10+ years. |
| Data Retention | >100 years; guarantees nonvolatile storage integrity in unpowered industrial environments. |
| Word-Program Time | 7 µs (typical); fixed duration independent of cycle count, simplifying real-time system timing budgets. |
| Erase Capability | Sector (2 KWord), Block (32 KWord), Chip; enables granular firmware patching without full reflash overhead. |
| Protection Scheme | Top 32 KWord hardware block-protection via WP#; prevents accidental overwrite of boot loader in critical systems. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm) and 48-ball TFBGA (8 mm × 10 mm). Both packages conform to JEDEC standard x16 flash pin assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A21–A0 | Address Inputs | 22-bit address bus (A21 most significant); AMS = A21 selects top/bottom boot blocks during erase commands. |
| DQ15–DQ0 | Data I/O | 16-bit bidirectional latched data bus; tri-stated when CE# or OE# is high; supports toggle-bit status monitoring on DQ6/DQ2. |
| WE#, CE#, OE# | Control Inputs | Standard x16 asynchronous control: WE# initiates writes, CE# enables chip, OE# gates output drivers. |
| WP# | Write Protect | Active-low hardware lock for top 32 KWord block (3F8000H–3FFFFFH); prevents inadvertent erase/program during power transients. |
| RST# | Reset Input | Hardware abort of in-progress erase/program; forces return to read mode within TRP (≤100 ns). |
| VDD, VSS | Power/Ground | Single 2.7–3.6 V supply; no VPP required-internal charge pump handles high-voltage programming. |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows real-time read access to non-suspended sectors during active erase, enabling background firmware validation. |
| Security ID Space | 256-bit factory/user-segmented ID (128-bit locked Microchip ID + 128-bit programmable user ID) for secure device authentication. |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access-cuts standby power by 3,000× without software intervention. |
| CFI Query Support | Enables runtime detection of geometry, timing, and command set via standardized 3-byte entry sequence at address 555H. |
| JEDEC Command Compatibility | Software command sequences match industry-standard flash protocols-reduces porting effort when migrating from other x16 flash devices. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Loader |
|---|---|
|
Use Scenario: Storing upgradable ladder logic and configuration parameters in DIN-rail mounted programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Nonvolatile program memory providing 70 ns read access to support deterministic scan-cycle execution under 10 ms. Use Value: Top-block hardware protection (3F8000H–3FFFFFH) isolates boot loader from field updates, preventing bricking during remote firmware patches. |
Use Scenario: Holding certified boot firmware and calibration data in Class II medical infusion pumps requiring regulatory-compliant data integrity and traceability. IC Role / Device Role / Timing Role: Secure, long-retention storage element with 100-year data retention and 128-bit factory-locked Security ID for device identity attestation. Use Value: Erase-suspend capability permits real-time verification of new firmware images before committing full erase, satisfying IEC 62304 software update safety requirements. |
| Telecom Base Station Configuration | Automotive ECU Calibration Memory |
|
Use Scenario: Storing RF parameter tables and protocol stack configurations in outdoor LTE small cells exposed to wide temperature swings (–40°C to +85°C). IC Role / Device Role / Timing Role: Industrial-grade flash memory delivering stable 70 ns access and 100,000-cycle endurance across thermal cycling. Use Value: Single 2.7–3.6 V supply eliminates need for auxiliary voltage rails, reducing BOM cost and PCB area in space-constrained RF modules. |
Use Scenario: Retaining engine calibration maps and diagnostic event logs in automotive powertrain ECUs where infrequent but mission-critical updates occur over vehicle lifetime. IC Role / Device Role / Timing Role: High-reliability firmware storage with >100-year retention and hardware block protection against voltage glitch-induced corruption. Use Value: Fixed 7 µs word-program time (independent of wear) ensures predictable update latency during dealership reprogramming sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST38VF6402-70-4I-B1KE | Successor device with identical 4M×16 organization, 70 ns access, and top-boot protection-but uses enhanced SuperFlash Gen2 with 200K endurance and lower 5 µs program time. | Designed for new designs requiring extended lifecycle support; not pin-compatible due to revised TFBGA ballout (48-ball vs. 48-ball with different signal mapping). | Select when designing new systems needing longer endurance and manufacturer roadmap continuity; requires PCB layout revision. |
| MX29LV640ETTI-70G | 64 Mbit x16 parallel flash with 70 ns access, but uses traditional floating-gate architecture (100K cycles, 20 µs program) and lacks Security ID or erase-suspend. | Drop-in replacement only for basic read/write use cases; no hardware top-block protection-requires external logic or software emulation for boot security. | Choose only for cost-sensitive legacy redesigns where Security ID and suspend/resume are unnecessary and JEDEC pinout suffices. |
Compared with SST39VF6402B-70-4I-B1KE, SST38VF6402-70-4I-B1KE offers higher endurance and faster programming but demands board redesign, while MX29LV640ETTI-70G provides pin-compatible JEDEC compliance at the expense of advanced reliability and security features.
Availability
SST39VF6402B-70-4I-B1KE is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, telecom infrastructure, and automotive ECU calibration storage requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF6402B-70-4I-B1KE 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 Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The SST39VF6402B-70-4I-B1KE belongs to Microchip's Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for embedded systems requiring robust, low-voltage, field-upgradable nonvolatile storage with hardware-level security and industrial temperature resilience.
FAQ
What does the "B1KE" suffix indicate in SST39VF6402B-70-4I-B1KE?
The "B1KE" suffix denotes a specific packaging and marking variant: "B1" indicates the 48-ball TFBGA package (8 mm × 10 mm), and "KE" specifies lead-free (RoHS-compliant) finish with tape-and-reel packaging. This matches the documented TFBGA option in DS20005008C and confirms the device meets environmental compliance requirements for industrial assembly.
Does SST39VF6402B-70-4I-B1KE support both TSOP and TFBGA packages interchangeably?
No-SST39VF6402B-70-4I-B1KE is exclusively the 48-ball TFBGA variant. The "B1KE" suffix explicitly identifies the TFBGA package; the 48-lead TSOP version carries different suffixes (e.g., "-70-4I-W1KE"). Pinouts differ between packages, and PCB layout is not interchangeable despite identical electrical functionality and JEDEC command compatibility.
How is top-block protection implemented in SST39VF6402B-70-4I-B1KE?
SST39VF6402B-70-4I-B1KE implements top-block protection via the WP# pin: when WP# is driven low, program and erase operations are disabled for the top 32 KWord block (address range 3F8000H–3FFFFFH). This hardware lock operates independently of software commands and remains active during power transitions, safeguarding boot code from corruption.
Can SST39VF6402B-70-4I-B1KE be used in new designs despite "Not Recommended for New Designs" status?
While Microchip labels SST39VF6402B-70-4I-B1KE as "Not Recommended for New Designs" in favor of the SST38VF640x series, it remains fully supported for existing designs and legacy production. Aetrix Electronics maintains active inventory and provides full technical documentation, making SST39VF6402B-70-4I-B1KE viable for sustaining engineering, repair, and backward-compatible upgrades.
What is the purpose of the Security ID feature in SST39VF6402B-70-4I-B1KE?
The Security ID in SST39VF6402B-70-4I-B1KE provides a 256-bit identifier split into a factory-programmed 128-bit Microchip segment (read-only, locked at manufacture) and a user-programmable 128-bit segment. It enables device authentication, firmware binding, and anti-cloning measures-critical for medical, industrial, and telecom applications requiring traceable hardware identity.
SST39VF6402B-70-4I-B1KE 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:
- 64Mbit
- Memory Organization:
- 4M 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-TFBGA
SST39VF6402B-70-4I-B1KE FAQ
1.How can I place an order for SST39VF6402B-70-4I-B1KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF6402B-70-4I-B1KE 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 SST39VF6402B-70-4I-B1KE reliable?
The price and inventory of SST39VF6402B-70-4I-B1KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF6402B-70-4I-B1KE is usually 5 days.
3.What payment methods are accepted for SST39VF6402B-70-4I-B1KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF6402B-70-4I-B1KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF6402B-70-4I-B1KE?
SST39VF6402B-70-4I-B1KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF6402B-70-4I-B1KE 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 SST39VF6402B-70-4I-B1KE?
For technical support, including SST39VF6402B-70-4I-B1KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF6402B-70-4I-B1KE requirements.
6.How does Aetrix verify that SST39VF6402B-70-4I-B1KE is sourced from the original manufacturer or authorized distributors?
All SST39VF6402B-70-4I-B1KE 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 SST39VF6402B-70-4I-B1KE meets industry standards.
7.What is the process for return or replacement of SST39VF6402B-70-4I-B1KE?
All SST39VF6402B-70-4I-B1KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF6402B-70-4I-B1KE, 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 SST39VF6402B-70-4I-B1KE part is unused and in its original packaging.
Return procedure for SST39VF6402B-70-4I-B1KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF6402B-70-4I-B1KE Tags
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