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Microchip Technology SST39VF3201B-70-4I-B3KE-T
- Part No.:
- SST39VF3201B-70-4I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF3201B-70-4I-B3KE-T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,876
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Product details
Overview
SST39VF3201B-70-4I-B3KE-T from Microchip Technology is a 32 Mbit (2M × 16) Multi-Purpose Flash Plus memory IC designed for nonvolatile program, configuration, and data storage in embedded systems. It operates from a single 2.7–3.6 V supply, delivers 70 ns read access time, supports bottom-block hardware write protection (000000H–007FFFH), and features 100,000-program/erase cycles with >100 years data retention.
For engineers reviewing the SST39VF3201B-70-4I-B3KE-T datasheet, SST39VF3201B-70-4I-B3KE-T pinout, SST39VF3201B-70-4I-B3KE-T application, or SST39VF3201B-70-4I-B3KE-T equivalent, this page provides verified pin assignments, JEDEC-compliant x16 interface timing, bottom-boot block protection mapping, and validated alternatives for industrial firmware storage designs requiring reliable, low-power flash with erase-suspend capability.
Technical Context
The SST39VF3201B-70-4I-B3KE-T implements SST's SuperFlash technology 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 architecture supports uniform 2 KWord sectors (1024 total) and 32 KWord blocks (64 total), with on-chip command logic for sector-, block-, and chip-erase operations.
It integrates hardware reset (RST#), write protect (WP#) for bottom 32 KWord boot block, and dual status detection via DQ7 (Data# Polling) and DQ6/DQ2 (Toggle Bits). The device conforms to JEDEC standard x16 flash pinouts and supports CFI Query mode for automatic system identification and parameter discovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2,097,152 × 16-bit words); enables full firmware image storage for mid-complexity microcontrollers. |
| Read Access Time | 70 ns max; ensures compatibility with 14 MHz bus timing without wait states in legacy 8051/ARM7-based systems. |
| Supply Voltage | 2.7–3.6 V single supply; eliminates need for external voltage translators in 3.3 V embedded platforms. |
| Endurance | 100,000 program/erase cycles (typical); supports field-updatable firmware with ≥10-year service life at 27 updates/year. |
| Data Retention | >100 years at +85°C; guarantees long-term reliability in industrial temperature-grade applications. |
| Block Protection | Hardware bottom-block protection (000000H–007FFFH); safeguards bootloader code from accidental overwrite during field updates. |
| Erase-Suspend | Supported via B0H command; allows real-time interrupt-driven reads from unprotected sectors during background erase. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 select 2M-word address space; A20 (AMS) used for sector/block selection during erase commands. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during writes; tri-stated when CE# or OE# high. |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write operations; controls address/data latch timing. |
| OE# | Output Enable | Active-low output gate; determines data validity on DQ bus during read cycles. |
| WE# | Write Enable | Active-low control for write latching; rising edge initiates internal program/erase timing sequences. |
| WP# | Write Protect | Active-low hardware lock for bottom 32 KWord boot block (000000H–007FFFH); prevents erase/program if grounded. |
| RST# | Reset | Active-low hardware reset; forces return to read mode and aborts in-progress erase/program operations. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; 4 µA standby current enables ultra-low-power operation in battery-backed systems. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Fixed 7 µs word-program and 18 ms erase times across full lifecycle-no software de-rating required. |
| Bottom-Block Hardware Protection | Dedicated WP#-controlled lock for 000000H–007FFFH region-ensures bootloader integrity without firmware overhead. |
| Erase-Suspend/Resume | Interruptible erase via B0H/30H commands-enables concurrent firmware validation and background update tasks. |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable segment-supports secure device authentication and traceability. |
| CFI Query Support | JEDEC-standard CFI table accessible at 555H-enables automatic driver initialization and cross-manufacturer compatibility. |
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 continuously in factory environments. IC Role / Device Role / Timing Role: Nonvolatile program memory with hardware-protected boot sector and fast sector-erase for incremental firmware patches. Use Value: Bottom-block protection prevents corruption of startup code during remote updates; 100,000-cycle endurance supports 15+ years of scheduled maintenance cycles. |
Use Scenario: Holding calibration coefficients, patient safety parameters, and regulatory compliance logs in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Low-power configuration memory supporting infrequent writes and guaranteed 100-year data retention at +85°C. Use Value: 4 µA auto-low-power mode extends battery life between calibrations; >100-year retention meets FDA Class II device archival requirements. |
| Automotive Infotainment Bootloader | Networking Equipment Image Storage |
|
Use Scenario: Hosting secure bootloader code and fail-safe recovery images in automotive head units subject to wide thermal cycling and EMI. IC Role / Device Role / Timing Role: JEDEC-compliant x16 flash with RST#-driven hard reset and WP#-enabled boot block lock. Use Value: Hardware reset ensures deterministic recovery after brown-out; bottom-block protection isolates bootloader from OTA update failures. |
Use Scenario: Storing primary and fallback firmware images in enterprise switches and routers requiring zero-downtime upgrades. IC Role / Device Role / Timing Role: Dual-image flash memory supporting atomic swap via sector-erase and fast 7 µs word-program for patch deployment. Use Value: Erase-suspend allows live traffic monitoring during background image validation; 35 ms chip-erase enables rapid factory reflash. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3202B-70-4I-B3KE-T | Top-block hardware protection (1F8000H–1FFFFFH) instead of bottom-block; identical timing, density, and package. | Used where bootloader resides in top memory region; requires PCB-level WP# routing change to match protection zone. | Select only if top-boot architecture aligns with system memory map and bootloader location. |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns access, but uses different command set (no CFI support) and lacks erase-suspend/resume capability. | Suitable for cost-sensitive designs without need for background erase interruption; requires custom driver adaptation. | Choose when CFI auto-detection is unnecessary and erase-suspend is not required for real-time system responsiveness. |
Compared with SST39VF3201B-70-4I-B3KE-T, the SST39VF3202B variant offers identical performance but inverted block protection orientation-requiring memory map alignment-while the MX29LV320ETTI lacks erase-suspend and CFI, increasing firmware development effort for feature parity.
Availability
SST39VF3201B-70-4I-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, automotive infotainment bootloader, networking equipment image storage, and embedded system BIOS/UEFI storage requiring stable component supply across extended product lifecycles.
Supply support for SST39VF3201B-70-4I-B3KE-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 2010 and now develops and manufactures high-reliability flash memory solutions for industrial, automotive, and communications markets.
The SST39VF3201B-70-4I-B3KE-T belongs to the Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for embedded systems needing robust, low-voltage, JEDEC-compliant flash with hardware block protection and advanced erase management.
FAQ
What is the exact memory organization of the SST39VF3201B-70-4I-B3KE-T?
The SST39VF3201B-70-4I-B3KE-T is organized as 2,097,152 words × 16 bits (32 Mbit total), with uniform 2 KWord sectors (1024 sectors) and 32 KWord blocks (64 blocks). Its bottom 32 KWord (000000H–007FFFH) is hardware-protected via the WP# pin, distinguishing it from the top-protected SST39VF3202B variant.
Does the SST39VF3201B-70-4I-B3KE-T support CFI Query mode, and how is it accessed?
Yes, the SST39VF3201B-70-4I-B3KE-T supports JEDEC-standard Common Flash Interface (CFI) Query mode. It is entered by writing 98H to address 555H using the three-byte sequence (555H/AAH → 2AAH/55H → 555H/98H) or the one-byte sequence (55H/98H). CFI data is then readable at addresses defined in Tables 7–9 of the datasheet.
How does hardware write protection work on the SST39VF3201B-70-4I-B3KE-T?
Hardware write protection on the SST39VF3201B-70-4I-B3KE-T is implemented via the WP# pin, which locks the bottom 32 KWord boot block (000000H–007FFFH) against erase and program operations when held low. If WP# is left floating, an internal pull-up holds it high, disabling protection. This differs from the SST39VF3202B, which protects the top block.
What are the valid methods to detect completion of a program or erase operation on the SST39VF3201B-70-4I-B3KE-T?
The SST39VF3201B-70-4I-B3KE-T provides two validated end-of-write detection methods: Data# Polling (DQ7 toggles until completion, then returns true data) and Toggle Bits (DQ6 toggles during operation, stops when complete). For Security ID programming, only Toggle Bits (DQ6/DQ2) should be used-not Data# Polling-as specified in the datasheet.
Is the SST39VF3201B-70-4I-B3KE-T compatible with standard x16 flash memory interfaces?
Yes, the SST39VF3201B-70-4I-B3KE-T conforms fully to JEDEC standard pin assignments for x16 asynchronous flash memories. Its 48-lead TSOP package matches industry-standard footprints, and its command set-including Word-Program, Sector-Erase, and Chip-Erase-is compatible with common flash controller drivers used in ARM, MIPS, and PowerPC-based systems.
SST39VF3201B-70-4I-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA
SST39VF3201B-70-4I-B3KE-T FAQ
1.How can I place an order for SST39VF3201B-70-4I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201B-70-4I-B3KE-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 SST39VF3201B-70-4I-B3KE-T reliable?
The price and inventory of SST39VF3201B-70-4I-B3KE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3201B-70-4I-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39VF3201B-70-4I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201B-70-4I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201B-70-4I-B3KE-T?
SST39VF3201B-70-4I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201B-70-4I-B3KE-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 SST39VF3201B-70-4I-B3KE-T?
For technical support, including SST39VF3201B-70-4I-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201B-70-4I-B3KE-T requirements.
6.How does Aetrix verify that SST39VF3201B-70-4I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF3201B-70-4I-B3KE-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 SST39VF3201B-70-4I-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39VF3201B-70-4I-B3KE-T?
All SST39VF3201B-70-4I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201B-70-4I-B3KE-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 SST39VF3201B-70-4I-B3KE-T part is unused and in its original packaging.
Return procedure for SST39VF3201B-70-4I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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