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Microchip Technology SST39VF3201B-70-4C-EKE
- Part No.:
- SST39VF3201B-70-4C-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF3201B-70-4C-EKE.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:951
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Product details
Overview
SST39VF3201B-70-4C-EKE from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus memory IC with bottom-block hardware write protection, 70 ns read access time, and single 2.7–3.6 V supply operation. It delivers 100,000 program/erase cycles endurance and >100-year data retention for embedded firmware storage in industrial controllers and networking boot loaders.
For engineers reviewing the SST39VF3201B-70-4C-EKE datasheet, SST39VF3201B-70-4C-EKE pinout, SST39VF3201B-70-4C-EKE application, or SST39VF3201B-70-4C-EKE equivalent, this page provides verified pin functions, JEDEC-compliant x16 interface timing, bottom-boot block protection mapping, and real-world flash replacement guidance for legacy 32 Mbit NOR designs.
Technical Context
The SST39VF3201B-70-4C-EKE implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. Its architecture supports uniform 2 KWord sectors and 32 KWord blocks, with hardware block-protection applied to the bottom 32 KWord (000000H–007FFFH).
It uses standard asynchronous x16 NOR interface logic with CE#, OE#, and WE# control, supports Data# Polling (DQ7) and Toggle Bit (DQ6/DQ2) status detection, and includes CFI query mode, Security ID space (128-bit factory + 128-word user), and Erase-Suspend/Resume functionality - all operating within 2.7–3.6 V at commercial temperature range (0°C to +70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2,097,152 × 16 bits); supports full firmware image storage for mid-complexity microcontrollers. |
| Read Access Time | 70 ns maximum; enables direct execution (XIP) from flash in systems with ≤14 MHz bus timing budgets. |
| Supply Voltage | 2.7–3.6 V single supply; compatible with 3.3 V system rails without level-shifting or auxiliary regulators. |
| Endurance | 100,000 program/erase cycles typical; sufficient for field firmware updates over 10+ years in industrial gateways. |
| Data Retention | >100 years at 25°C; ensures long-term reliability in unpowered storage applications like configuration EEPROM replacement. |
| Block Protection | Bottom 32 KWord (000000H–007FFFH); protects boot code region from accidental overwrite when WP# is grounded. |
| Package | 48-lead TSOP (12 mm × 20 mm); surface-mount compatible with standard reflow profiles and legacy PCB footprints. |
Pinout & Package
48-lead TSOP (12 mm × 20 mm), JEDEC-standard x16 asynchronous NOR footprint. Pin functions validated per DS25111A Figure 2 and Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 select 2M words; A20 (AMS) used for sector/block address decoding during erase operations. |
| 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 device selection; must be low for read/write; high = standby (4 µA current). |
| OE# | Output Enable | Active-low output gating; controls data bus drive; high = high-impedance state. |
| WE# | Write Enable | Active-low write control; latches address/data on falling/rising edges per JEDEC command sequencing. |
| WP# | Write Protect | Grounding protects bottom 32 KWord boot block; floating = internal pull-up = unprotected. |
| RST# | Hardware Reset | Active-low hard reset; terminates ongoing erase/program and forces return to read mode. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; decoupling required per JEDEC layout guidelines for stable 70 ns timing. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash cell architecture | Split-gate + thick-oxide injector enables fixed 18 ms sector/block erase time across full lifecycle. |
| Auto Low Power mode | Reduces active read current from 6 mA to 4 µA after valid access-no software overhead or latency penalty. |
| Erase-Suspend/Erase-Resume | Allows read/program in non-suspended sectors during background erase-critical for real-time firmware patching. |
| Security ID space | Factory-programmed 128-bit ID + 128-word user space, lockable to prevent tampering of device identity or keys. |
| JEDEC-compliant command set | Fully supports CFI query, Software ID entry, and industry-standard 6-byte erase/program sequences. |
Applications
| Industrial PLC Firmware Storage | Networking Equipment Boot Loader |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile x16 NOR flash providing XIP-capable boot code and field-upgradable application binaries. Use Value: Bottom-block protection prevents corruption of critical startup routines during remote firmware updates over Modbus TCP. |
Use Scenario: Holding bootloader and FPGA configuration bitstreams in enterprise switches and routers requiring secure, reliable initialization. IC Role / Device Role / Timing Role: Primary boot memory mapped to CPU address space with 70 ns access enabling fast cold-start performance. Use Value: 100,000-cycle endurance supports frequent feature upgrades without hardware replacement across product lifecycle. |
| Medical Device Configuration Memory | Automotive Infotainment System Code Storage |
|
Use Scenario: Retaining calibration parameters, safety-critical settings, and regulatory compliance logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, long-retention storage for immutable configuration data with hardware write lock capability. Use Value: >100-year data retention meets IEC 62304 requirements for Class C medical devices with 15+ year service life. |
Use Scenario: Hosting infotainment OS kernel and UI assets in automotive head units where thermal cycling and vibration are present. IC Role / Device Role / Timing Role: High-reliability flash memory operating across -40°C to +85°C with robust noise immunity. Use Value: SuperFlash technology reduces total energy per erase/program cycle-lowering thermal stress in enclosed dash-mounted enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3202B-70-4C-EKE | Top 32 KWord hardware block protection (1F8000H–1FFFFFH) instead of bottom-block; identical timing, voltage, and package. | Used where boot code resides in top memory region; not interchangeable without PCB address map verification. | Select only if design requires top-boot protection and address decoding aligns with 1F8000H–1FFFFFH range. |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, 2.7–3.6 V, but uses different command set (no Erase-Suspend) and lacks Security ID feature. | Lower-cost drop-in for basic read/write applications; unsuitable for secure boot or real-time suspend/resume use cases. | Choose when CFI compatibility and cost are primary; avoid if Security ID or Erase-Suspend functionality is required. |
Compared with SST39VF3202B-70-4C-EKE, the SST39VF3201B-70-4C-EKE provides bottom-boot protection essential for legacy BIOS-style boot flows; versus MX29LV320ETTI-70G, it adds hardware-assisted security and deterministic erase timing critical for certified embedded systems.
Availability
SST39VF3201B-70-4C-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, networking equipment boot loader deployment, and medical device configuration memory requiring stable component supply across multi-year production programs.
Supply support for SST39VF3201B-70-4C-EKE 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 maintains the MPF+ Flash product line with full technical and manufacturing continuity.
The SST39VF3201B belongs to the Multi-Purpose Flash Plus family, designed specifically for cost-sensitive, high-reliability embedded applications requiring fast read access, flexible erase granularity, and hardware-based data protection.
FAQ
What is the exact memory organization of the SST39VF3201B-70-4C-EKE?
The SST39VF3201B-70-4C-EKE 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 when WP# is grounded. This structure is confirmed in DS25111A Tables 3 and 9.
Does the SST39VF3201B-70-4C-EKE support Erase-Suspend functionality?
Yes, the SST39VF3201B-70-4C-EKE supports Erase-Suspend and Erase-Resume commands (B0H and 30H) to temporarily halt sector or block erase operations. This allows reading from or programming into non-suspended regions during background erase-verified in DS25111A Sections 5.4 and Table 6.
What is the purpose of the RST# pin on the SST39VF3201B-70-4C-EKE?
The RST# pin on the SST39VF3201B-70-4C-EKE provides hardware-level reset: holding RST# low for ≥TRP (100 ns) terminates any active program or erase operation and forces immediate return to read mode. Post-reset, a minimum TRHR (100 ns) delay is required before valid reads-detailed in DS25111A Section 6.7 and Figure 17.
How does hardware block protection work on the SST39VF3201B-70-4C-EKE?
Hardware block protection on the SST39VF3201B-70-4C-EKE applies exclusively to the bottom 32 KWord (000000H–007FFFH). When WP# is grounded, program and erase operations to this region are inhibited. If WP# floats, an internal pull-up disables protection-confirmed in DS25111A Section 6.4 and Table 3.
Is the SST39VF3201B-70-4C-EKE RoHS compliant and lead-free?
Yes, the SST39VF3201B-70-4C-EKE is a non-Pb (lead-free) device and fully RoHS compliant, as stated in the opening features section of DS25111A and confirmed in Microchip's official product change notices for the SST39VF320xB family.
SST39VF3201B-70-4C-EKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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-TSOP
SST39VF3201B-70-4C-EKE FAQ
1.How can I place an order for SST39VF3201B-70-4C-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201B-70-4C-EKE 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-EKE reliable?
The price and inventory of SST39VF3201B-70-4C-EKE 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-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF3201B-70-4C-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201B-70-4C-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201B-70-4C-EKE?
SST39VF3201B-70-4C-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201B-70-4C-EKE 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-EKE?
For technical support, including SST39VF3201B-70-4C-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201B-70-4C-EKE requirements.
6.How does Aetrix verify that SST39VF3201B-70-4C-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF3201B-70-4C-EKE 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-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF3201B-70-4C-EKE?
All SST39VF3201B-70-4C-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201B-70-4C-EKE, 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-EKE part is unused and in its original packaging.
Return procedure for SST39VF3201B-70-4C-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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