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Microchip Technology SST39VF3202B-70-4I-EKE
- Part No.:
- SST39VF3202B-70-4I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF3202B-70-4I-EKE.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,957
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Product details
Overview
SST39VF3202B-70-4I-EKE from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus memory IC with top-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 years data retention, used in embedded firmware storage for industrial controllers and network boot loaders.
For engineers reviewing the SST39VF3202B-70-4I-EKE datasheet, SST39VF3202B-70-4I-EKE pinout, SST39VF3202B-70-4I-EKE application, or SST39VF3202B-70-4I-EKE equivalent, this page provides verified pin functions, JEDEC-compliant x16 interface timing, top 32 KWord block protection behavior, sector/block/chip erase capabilities, and real-world use cases in firmware-updatable systems.
Technical Context
The SST39VF3202B-70-4I-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 activated via WP# grounded to lock the top 32 KWord (address range 1F8000H–1FFFFFH).
It uses standard asynchronous x16 parallel interface timing per JEDEC pin assignments, with latched address/data, toggle-bit (DQ6/DQ2) and data-polling (DQ7) status detection, and CFI query support. The device enters Auto Low Power mode after valid reads, reducing active current from 6 mA to 4 µA without access penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2,097,152 × 16 bits), directly maps to 4 MB byte-addressable space in x16 mode |
| Read Access Time | 70 ns - determines minimum bus cycle time for CPU or FPGA interface at full speed |
| Supply Voltage | 2.7–3.6 V - enables direct connection to 3.3 V logic rails without level shifting |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over product lifetime |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications |
| Erase Granularity | Sector (2 KWord), Block (32 KWord), Chip - allows selective firmware patching without full reflash |
| Write Protection | Hardware top-block (1F8000H–1FFFFFH) via WP# pin - prevents accidental overwrite of boot code |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 select 2M words; A20 (AMS) used for sector/block addressing during erase commands |
| DQ0–DQ15 | Data I/O (x16) | Bidirectional 16-bit data bus; outputs tri-stated when CE# or OE# high; latched on write |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write operations |
| OE# | Output Enable | Active-low output gate; controls DQ bus drive during read; high = high-Z |
| WE# | Write Enable | Active-low control for write cycles; latches address/data edges for command sequencing |
| WP# | Write Protect | Active-low top-block protection; grounded to lock addresses 1F8000H–1FFFFFH |
| RST# | Hardware Reset | Active-low hard reset; terminates ongoing erase/program and returns to read mode |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; dual ground pins (pins 23 & 47) reduce noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows read access to non-suspended sectors during active erase - enables real-time status monitoring |
| Security ID Space | 128-bit factory-programmed + 128-word user-programmable ID - supports device authentication and traceability |
| Auto Low Power Mode | Reduces active read current from 6 mA to 4 µA after valid access - cuts power in idle polling loops |
| Internal VPP Generation | No external high-voltage supply needed - simplifies board design and eliminates VPP routing |
| CFI Query Support | JEDEC-standard Common Flash Interface - enables automatic driver configuration in bootloader software |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Loader |
|---|---|
|
Use Scenario: Storing and updating firmware images in programmable logic controllers operating in harsh environments with wide temperature ranges. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware top-block protection ensuring boot loader integrity against corruption. Use Value: 100,000-cycle endurance and >100-year retention guarantee firmware persistence across decades of field deployment. |
Use Scenario: Holding boot code and configuration parameters in enterprise-grade routers requiring secure, field-upgradable firmware. IC Role / Device Role / Timing Role: x16 parallel flash memory interfaced to MIPS or ARM host processors for fast boot execution. Use Value: 70 ns read access enables sub-microsecond instruction fetch latency, accelerating system startup time. |
| Medical Device Configuration Memory | Automotive Infotainment System |
|
Use Scenario: Retaining calibration data, user preferences, and safety-critical configuration settings in diagnostic imaging equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with hardware WP# and Security ID for regulatory compliance (IEC 62304). Use Value: Factory-programmed 128-bit ID enables unique device serialization and anti-counterfeiting verification. |
Use Scenario: Storing navigation map data and UI assets in automotive head units where vibration and thermal cycling demand high reliability. IC Role / Device Role / Timing Role: High-endurance flash supporting frequent over-the-air (OTA) map updates without wear-out risk. Use Value: Uniform 2 KWord sector erase allows incremental map tile updates without erasing entire partitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3201B-70-4I-EKE | Bottom-block protection (000000H–007FFFH); identical density, timing, and package | Used where boot code resides in lowest memory region instead of top | Select only if bottom-block protection matches system memory map layout |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, but requires 3.0–3.6 V only; no Auto Low Power mode; different command set | Lacks erase-suspend and CFI support; less flexible for dynamic update scenarios | Prefer SST39VF3202B-70-4I-EKE when low-power operation or suspend/resume capability is required |
Compared with SST39VF3201B-70-4I-EKE, this part offers top-block protection matching typical boot ROM layouts; versus MX29LV320ETTI-70G, it delivers lower active current, built-in CFI, and erase-suspend-critical for robust OTA update handling in resource-constrained systems.
Availability
SST39VF3202B-70-4I-EKE is available at Aetrix Electronics and suitable for industrial PLCs, network infrastructure equipment, and medical diagnostics devices requiring stable component supply across extended product lifecycles.
Supply support for SST39VF3202B-70-4I-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 2016 and now develops, manufactures, and supports its SuperFlash-based NOR flash portfolio.
The SST39VF3202B-70-4I-EKE belongs to the Multi-Purpose Flash Plus (MPF+) family, designed specifically for cost-sensitive, high-reliability embedded systems needing field-upgradable firmware with hardware-level security and low-power operation.
FAQ
What is the exact memory organization of the SST39VF3202B-70-4I-EKE?
The SST39VF3202B-70-4I-EKE is organized as 2,097,152 words × 16 bits (2M × 16), totaling 32 Mbit (4 MB byte-equivalent). It uses a standard x16 parallel interface with address lines A0–A19 for word selection and A20 (AMS) for sector/block addressing during erase commands. This structure aligns with JEDEC-standard pinouts for seamless integration into existing 16-bit bus designs.
How does hardware write protection work on the SST39VF3202B-70-4I-EKE?
Hardware write protection on the SST39VF3202B-70-4I-EKE is implemented via the WP# pin: when pulled low, it locks the top 32 KWord block (addresses 1F8000H–1FFFFFH) against all program and erase operations. This protects boot code stored in the upper memory region. If WP# is left floating, an internal pull-up holds it high, disabling protection - so external grounding is required for enforcement.
Does the SST39VF3202B-70-4I-EKE support erase-suspend functionality?
Yes, the SST39VF3202B-70-4I-EKE supports Erase-Suspend and Erase-Resume commands (B0H and 30H). When suspended, the device enters read mode within ~10 µs, allowing host software to read status or program other non-suspended sectors. DQ2 toggling indicates erase-suspended sectors, while DQ6 remains high - enabling safe concurrent operations without interrupting background erase.
What is the purpose of the RST# pin on the SST39VF3202B-70-4I-EKE?
The RST# pin on the SST39VF3202B-70-4I-EKE provides hardware-initiated recovery: holding RST# low for ≥ TRP (100 ns min) forces immediate termination of any ongoing program or erase operation and returns the device to read mode. After release, a minimum TRHR (100 ns) delay is required before valid reads. This ensures deterministic reset behavior during power faults or watchdog timeouts.
Can the SST39VF3202B-70-4I-EKE be used in industrial temperature applications?
Yes, the SST39VF3202B-70-4I-EKE is rated for industrial temperature range (–40°C to +85°C) under the "I" suffix in its part number. Its 2.7–3.6 V supply tolerance, 100,000-cycle endurance, and >100-year data retention are guaranteed across this full range - making it suitable for deployment in factory automation, outdoor networking gear, and transportation control systems.
SST39VF3202B-70-4I-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:
- 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-TSOP
SST39VF3202B-70-4I-EKE FAQ
1.How can I place an order for SST39VF3202B-70-4I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3202B-70-4I-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 SST39VF3202B-70-4I-EKE reliable?
The price and inventory of SST39VF3202B-70-4I-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3202B-70-4I-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF3202B-70-4I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3202B-70-4I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3202B-70-4I-EKE?
SST39VF3202B-70-4I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3202B-70-4I-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 SST39VF3202B-70-4I-EKE?
For technical support, including SST39VF3202B-70-4I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3202B-70-4I-EKE requirements.
6.How does Aetrix verify that SST39VF3202B-70-4I-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF3202B-70-4I-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 SST39VF3202B-70-4I-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF3202B-70-4I-EKE?
All SST39VF3202B-70-4I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3202B-70-4I-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 SST39VF3202B-70-4I-EKE part is unused and in its original packaging.
Return procedure for SST39VF3202B-70-4I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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