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Microchip Technology SST39VF3201B-70-4C-B3KE
- Part No.:
- SST39VF3201B-70-4C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF3201B-70-4C-B3KE.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,736
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Product details
Overview
SST39VF3201B-70-4C-B3KE from Microchip Technology is a 32 Mbit (2M × 16) Multi-Purpose Flash Plus memory IC with bottom-block hardware write protection, 70 ns read access time, 2.7–3.6 V single-supply operation, and JEDEC-standard x16 asynchronous interface - used for firmware storage and configuration in industrial microcontroller-based systems.
For engineers reviewing the SST39VF3201B-70-4C-B3KE datasheet, SST39VF3201B-70-4C-B3KE pinout, SST39VF3201B-70-4C-B3KE application, or SST39VF3201B-70-4C-B3KE equivalent, key selection considerations include bottom-boot block protection (000000H–007FFFH), 100,000-cycle endurance, 4 µA standby current, sector/block/chip erase flexibility, and TSOP-48/TTFBGA-48 package compatibility.
Technical Context
The SST39VF3201B-70-4C-B3KE implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. It supports standard asynchronous x16 bus timing with CE#, OE#, and WE# control signals and latched address/data paths.
Hardware block protection is implemented via WP# tied low to protect the bottom 32 KWord (000000H–007FFFH); RST# provides hardware reset to Read mode; and Security ID includes factory-programmed 128-bit and user-programmable 128-word segments. Erase-suspend/resume enables concurrent read/program during active erase operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2,097,152 × 16-bit words) - supports full firmware image storage for mid-complexity embedded controllers. |
| Read Access Time | 70 ns - enables direct execution (XIP) from flash at up to ~10 MHz system bus frequency without wait states. |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and eliminates need for separate VPP programming voltage. |
| Endurance | 100,000 program/erase cycles - sufficient for field firmware updates over 10+ years in industrial control applications. |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage of calibration data or security credentials. |
| Standby Current | 4 µA (typical) - minimizes power draw in battery-backed or energy-constrained systems during idle periods. |
| Erase Granularity | Sector (2 KWord), Block (32 KWord), Chip - allows selective firmware patching without full reflash, reducing update time and risk. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, lead-free. Pinout conforms to JEDEC standard for x16 asynchronous flash memories.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 select word location; A20 (AMS) used for sector/block addressing during erase commands. |
| DQ0–DQ15 | Data I/O | Bi-directional x16 data bus; outputs tri-stated when CE# or OE# high; latched internally during write. |
| CE# | Chip Enable | Active-low chip select - device enters standby (4 µA) when high; required low for all operations. |
| OE# | Output Enable | Active-low output gate - controls data bus drive; must be low with CE# for valid read access. |
| WE# | Write Enable | Active-low write strobe - initiates command latching and internal program/erase timing sequences. |
| WP# | Write Protect | Active-low hardware lock - protects bottom 32 KWord boot block (000000H–007FFFH) when grounded. |
| RST# | Reset | Active-low hardware abort - forces immediate return to Read mode; required TRP pulse width ≥ 100 ns. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; dual ground pins (pins 23 & 47) reduce noise coupling in high-speed reads. |
Key Features
| Feature | Design Value |
|---|---|
| Bottom Boot Block Protection | Hardware-enforced write/erase lock on lowest 32 KWord (000000H–007FFFH), preventing accidental bootloader corruption. |
| Erase-Suspend/Resume | Allows real-time read access or programming in non-suspended sectors during active sector/block erase - critical for fail-safe updates. |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable space - enables secure device authentication and traceability. |
| Auto Low Power Mode | Automatically transitions from active read (6 mA) to 4 µA standby after valid access - no software intervention required. |
| CFI Compliance | Integrated Common Flash Interface supports standardized JEDEC query mode - simplifies driver development and field diagnostics. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware and I/O mapping tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with bottom-boot protection ensuring bootloader integrity across 100,000+ field updates. Use Value: Prevents catastrophic failure from corrupted startup code while enabling secure, field-upgradable firmware via sector-erase granularity. |
Use Scenario: Holding calibrated sensor offsets, regulatory compliance flags, and patient-specific settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-reliability configuration memory with >100-year data retention and hardware write lock on critical parameters. Use Value: Guarantees persistent, tamper-resistant storage of safety-critical values without requiring battery backup or external EEPROM. |
| Telecom Base Station Bootloader | Automotive Infotainment System Image Storage |
|
Use Scenario: Hosting primary bootloader and recovery image in cellular baseband units requiring zero-downtime firmware rollback capability. IC Role / Device Role / Timing Role: Dual-image flash with bottom-block protected bootloader and top-block updatable application image. Use Value: Enables atomic firmware swaps using chip-erase and verify, with hardware-enforced bootloader immutability during field upgrades. |
Use Scenario: Storing HMI graphics assets, voice prompt audio, and navigation map metadata in automotive head units with thermal cycling exposure. IC Role / Device Role / Timing Role: High-endurance, wide-temperature (-40°C to +85°C) flash memory supporting frequent OTA content updates. Use Value: Delivers 100,000-cycle endurance and 4 µA standby current to extend module lifetime while minimizing ECU power budget impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3202B-70-4C-B3KE | Top-boot block protection (1F8000H–1FFFFFH) instead of bottom-boot; otherwise identical architecture, timing, and packaging. | Suitable where bootloader resides in highest-addressed 32 KWord region rather than lowest - requires PCB address wiring verification. | Select only if system design allocates boot code to top memory region; not drop-in compatible due to inverted protection zone. |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, 2.7–3.6 V, but uses different command set (no CFI), lacks erase-suspend, and has 10,000-cycle endurance rating. | Lower-cost alternative for non-critical firmware storage where suspend/resume and extended endurance are unnecessary. | Use where cost sensitivity outweighs advanced features; requires full driver rewrite due to incompatible command protocol. |
Compared with SST39VF3201B-70-4C-B3KE, the SST39VF3202B offers mirrored boot-block protection for top-aligned firmware, while the MX29LV320ETTI sacrifices endurance and erase flexibility for lower unit cost - making SST39VF3201B-70-4C-B3KE optimal for safety-critical, field-upgradable systems requiring guaranteed 100k cycles and suspend-capable updates.
Availability
SST39VF3201B-70-4C-B3KE is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, telecom base stations, and automotive infotainment systems requiring stable component supply and long-term lifecycle support.
Supply support for SST39VF3201B-70-4C-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
Microchip Technology acquired Silicon Storage Technology (SST) in 2016 and now designs, manufactures, and supports the SST39VF320xB family of high-reliability flash memories.
The SST39VF320xB product line was engineered specifically for embedded systems requiring robust, low-power, field-upgradable nonvolatile storage - emphasizing endurance, data retention, and hardware-level protection against inadvertent writes.
FAQ
What is the exact boot block protection scheme for SST39VF3201B-70-4C-B3KE?
The SST39VF3201B-70-4C-B3KE implements bottom-block hardware protection: when WP# is grounded, the lowest 32 KWord (address range 000000H–007FFFH) is locked against program and erase operations. This region corresponds to the primary bootloader, ensuring it remains intact during firmware updates elsewhere in the array. The SST39VF3201B-70-4C-B3KE datasheet confirms this behavior in Table 3 and Section 8.
Does SST39VF3201B-70-4C-B3KE support both TSOP-48 and TFBGA-48 packages?
Yes, the SST39VF3201B-70-4C-B3KE is qualified in both 48-lead TSOP (12 mm × 20 mm) and 48-ball TFBGA (6 mm × 8 mm) packages per the DS25111A datasheet. The B3KE suffix specifically denotes the TSOP-48 variant with commercial temperature grade (0°C to +70°C) and 70 ns access time. The TFBGA version uses a different suffix (e.g., B3KE-T).
How does the Auto Low Power mode function in SST39VF3201B-70-4C-B3KE?
The SST39VF3201B-70-4C-B3KE automatically enters Auto Low Power mode after a valid read cycle completes, reducing active current from 6 mA to 4 µA without software intervention. It exits instantly upon any address or control signal transition, with no access time penalty. This feature is enabled by default and requires no configuration - a key advantage of the SST39VF3201B-70-4C-B3KE over legacy flash devices.
Can SST39VF3201B-70-4C-B3KE be used in industrial temperature applications?
No - the SST39VF3201B-70-4C-B3KE is rated for commercial temperature range (0°C to +70°C) only, as indicated by the "C" in its part number suffix. For industrial applications (-40°C to +85°C), the correct variant is SST39VF3201B-70-4I-B3KE (with "I" denoting industrial grade). Using the C-grade SST39VF3201B-70-4C-B3KE outside its specified ambient range may result in timing violations or data retention loss.
What command sequence is required to enter CFI Query mode on SST39VF3201B-70-4C-B3KE?
To enter CFI Query mode on the SST39VF3201B-70-4C-B3KE, issue the three-byte command sequence: write 98H to address 555H (with A10–A0 = 555H, DQ15–DQ0 = 98H), preceded by the unlock sequence AAH to 555H and 55H to 2AAH. Alternatively, use the one-byte method: write 98H to data bus while driving 55H on address bus. The SST39VF3201B-70-4C-B3KE then responds with standardized CFI identification strings at defined addresses.
SST39VF3201B-70-4C-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 32Mbit
- Memory Organization:
- 2M 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-TFBGA
SST39VF3201B-70-4C-B3KE FAQ
1.How can I place an order for SST39VF3201B-70-4C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201B-70-4C-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 SST39VF3201B-70-4C-B3KE reliable?
The price and inventory of SST39VF3201B-70-4C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3201B-70-4C-B3KE is usually 5 days.
3.What payment methods are accepted for SST39VF3201B-70-4C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201B-70-4C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201B-70-4C-B3KE?
SST39VF3201B-70-4C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201B-70-4C-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 SST39VF3201B-70-4C-B3KE?
For technical support, including SST39VF3201B-70-4C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201B-70-4C-B3KE requirements.
6.How does Aetrix verify that SST39VF3201B-70-4C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39VF3201B-70-4C-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 SST39VF3201B-70-4C-B3KE meets industry standards.
7.What is the process for return or replacement of SST39VF3201B-70-4C-B3KE?
All SST39VF3201B-70-4C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201B-70-4C-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 SST39VF3201B-70-4C-B3KE part is unused and in its original packaging.
Return procedure for SST39VF3201B-70-4C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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