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Microchip Technology SST39VF3201-70-4I-EKE-T
- Part No.:
- SST39VF3201-70-4I-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF3201-70-4I-EKE-T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,592
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Product details
Overview
SST39VF3201-70-4I-EKE-T from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus memory IC with single-supply 2.7–3.6 V operation, 70 ns read access time, bottom-block hardware write protection, and JEDEC-standard x16 asynchronous interface. It serves as nonvolatile program/data storage in embedded controllers, BIOS firmware modules, and industrial HMI systems requiring field-upgradable code.
For engineers reviewing the SST39VF3201-70-4I-EKE-T datasheet, SST39VF3201-70-4I-EKE-T pinout, SST39VF3201-70-4I-EKE-T application, or SST39VF3201-70-4I-EKE-T equivalent, this page delivers verified technical identity, JEDEC-compliant pin mapping, bottom-boot block protection behavior, SuperFlash endurance/reliability metrics, and direct alternatives for legacy design continuity and obsolescence mitigation.
Technical Context
The SST39VF3201-70-4I-EKE-T implements SST's proprietary SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. It supports uniform 2 KWord sectors and 32 KWord blocks, with hardware block protection applied to the bottom 32 KWord (000000H–007FFFH).
Operation relies on standard JEDEC command sets-including six-byte sequences for sector/block/chip erase-and status detection via DQ6 toggle bit and DQ7 data# polling. The device includes RST# for hardware reset, WP# for boot-block protection, and CFI query capability for runtime identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2M × 16), providing 4 MB of nonvolatile storage space |
| Read Access Time | 70 ns - determines minimum bus cycle timing for CPU or controller interface |
| Supply Voltage | 2.7–3.6 V - enables direct integration with 3.3 V logic systems without level-shifting |
| Endurance | 100,000 program/erase cycles - supports frequent firmware updates in field-deployed devices |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications |
| Block Protection | Bottom 32 KWord (000000H–007FFFH) - safeguards boot code against accidental overwrite |
| Package Type | 48-lead TSOP (12 mm × 20 mm) - surface-mount compatible with standard PCB assembly processes |
Pinout & Package
48-lead TSOP (12 mm × 20 mm), standard JEDEC x16 flash footprint. Pin functions conform to SST39VF3201/3202 specification and support full compatibility with industry-standard memory controllers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 used for 2M × 16 addressing; A20 selects upper address range during command sequences |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during write, tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus visibility during read operations |
| WE# | Write Enable | Controls latching of address/data and initiates internal program/erase timing |
| WP# | Write Protect | Grounding protects bottom 32 KWord boot block from erase/program commands |
| RST# | Hardware Reset | Forces immediate return to read mode; required TRP low pulse duration per datasheet |
| VDD | Power Supply | 2.7–3.6 V supply; powers all internal logic and SuperFlash cell operations |
| VSS | Ground | Reference ground for all I/O and core circuitry |
| NC | No Connect | Unbonded pins (e.g., A16, A18 in TSOP layout); must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows temporary read access during active sector/block erase - critical for real-time system responsiveness |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access - cuts dynamic power in burst-read applications |
| Security ID Space | 256-bit factory + user programmable ID - enables secure device authentication and firmware binding |
| CFI Query Support | Standardized JEDEC CFI table at known addresses - enables automatic driver configuration in OS/bootloader |
| Toggle Bit & Data# Polling | Dual-status detection (DQ6/DQ7) - eliminates need for fixed delay loops and improves write efficiency |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
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 parallel flash memory providing boot code and application image storage with hardware boot-block protection. Use Value: Bottom-block protection prevents corruption of startup routines during field firmware upgrades; 100K-cycle endurance supports lifecycle maintenance over 10+ years. |
Use Scenario: Holding certified bootloader and safety-critical initialization code in FDA-regulated diagnostic imaging equipment. IC Role / Device Role / Timing Role: JEDEC-compliant flash memory serving as primary boot source with deterministic 70 ns read latency for safe power-on execution. Use Value: >100-year data retention meets medical device shelf-life requirements; CFI support enables automated validation during manufacturing test. |
| Telecom Base Station Configuration | Automotive Infotainment System Updates |
Use Scenario: Storing radio parameter tables and protocol stack configurations in LTE small-cell base stations operating in temperature-variable outdoor enclosures. IC Role / Device Role / Timing Role: Industrial-grade (–40°C to +85°C) flash memory with Auto Low Power mode reducing thermal load during idle periods. Use Value: 3 µA standby current minimizes always-on power draw; sector-erase capability enables selective config updates without full reflash. |
Use Scenario: Hosting updatable UI assets and navigation map data in automotive head units requiring AEC-Q100 alignment (via qualification of package/process). IC Role / Device Role / Timing Role: High-reliability parallel flash used for secondary firmware partition alongside main MCU, supporting OTA update rollback. Use Value: Erase-suspend allows concurrent display refresh during background map update; security ID enables cryptographic signature verification of update payloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3201B-70-4I-EKE | Same density, speed, and package; updated revision with enhanced ESD robustness and revised AC timing margins | Drop-in replacement for new designs; not recommended for legacy qualification revalidation due to minor parametric shifts | Select when initiating new designs or qualifying replacements where latest revision compliance is required |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, 2.7–3.6 V; uses different command set (no CFI), lacks erase-suspend, no security ID | Requires firmware driver modification; suitable only where advanced features are unused and cost is primary constraint | Choose only if existing software already supports Macronix command protocol and security/erase-suspend features are unnecessary |
Compared with SST39VF3201B-70-4I-EKE, the SST39VF3201-70-4I-EKE-T offers identical functionality but reflects an earlier production batch with documented qualification under prior Microchip/SST specifications; versus MX29LV320ETTI-70G, it provides superior feature depth including CFI, security ID, and erase-suspend-justifying use in systems requiring field upgrade safety and identity assurance.
Availability
SST39VF3201-70-4I-EKE-T is available at Aetrix Electronics and suitable for industrial control firmware storage, medical device boot code retention, and telecom configuration management requiring stable component supply across extended product lifecycles.
Supply support for SST39VF3201-70-4I-EKE-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST39VF3201-70-4I-EKE-T belongs to the Multi-Purpose Flash Plus (MPF+) family, designed specifically for embedded systems needing reliable, low-power, field-upgradable code and configuration storage with hardware-level data integrity safeguards.
FAQ
What does the "-70" in SST39VF3201-70-4I-EKE-T signify?
The "-70" denotes the maximum read access time specification: 70 nanoseconds. This value defines the guaranteed worst-case delay between address stabilization and valid data appearing on DQ0–DQ15 under specified VDD and temperature conditions. For the SST39VF3201-70-4I-EKE-T, this timing applies across the full industrial temperature range (–40°C to +85°C) and 2.7–3.6 V supply.
Is SST39VF3201-70-4I-EKE-T pin-compatible with SST39VF1601-70-4I-EKE?
No. Although both share the same 48-lead TSOP package and JEDEC x16 pinout, the SST39VF3201-70-4I-EKE-T requires A20 for full 2M × 16 addressing, while SST39VF1601-70-4I-EKE uses only A0–A19. A20 is NC on SST39VF1601 but functional on SST39VF3201-70-4I-EKE-T; connecting them interchangeably risks address misalignment and incorrect sector/block selection during erase commands.
Does SST39VF3201-70-4I-EKE-T support the Common Flash Interface (CFI)?
Yes. The SST39VF3201-70-4I-EKE-T implements full JEDEC CFI v1.0 compliance. Entering CFI Query mode via the 5555H/AAH–2AAAH/55H–5555H/98H command sequence allows reading standardized geometry, timing, and command-set descriptors from fixed address offsets (e.g., 10H–19H). This enables automatic driver initialization in Linux MTD or U-Boot environments without hard-coded assumptions about device behavior.
How is hardware write protection implemented on SST39VF3201-70-4I-EKE-T?
The SST39VF3201-70-4I-EKE-T implements bottom-block hardware protection: grounding WP# disables program and erase operations on the lowest 32 KWord (000000H–007FFFH), preserving boot code. Unlike top-boot variants (e.g., SST39VF3202), this part protects the bottom region exclusively. WP# has an internal pull-up; leaving it unconnected enables full device writability.
What is the purpose of the RST# pin on SST39VF3201-70-4I-EKE-T?
The RST# pin provides synchronous hardware reset: holding RST# low for ≥ TRP (100 ns min.) forces immediate termination of any ongoing program or erase operation and returns the SST39VF3201-70-4I-EKE-T to read mode. After release, a minimum TRHR (100 ns) delay is required before valid reads. This ensures deterministic recovery from error states or power transients without relying on software timeouts.
SST39VF3201-70-4I-EKE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- 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-TSOP
SST39VF3201-70-4I-EKE-T FAQ
1.How can I place an order for SST39VF3201-70-4I-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201-70-4I-EKE-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 SST39VF3201-70-4I-EKE-T reliable?
The price and inventory of SST39VF3201-70-4I-EKE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3201-70-4I-EKE-T is usually 5 days.
3.What payment methods are accepted for SST39VF3201-70-4I-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201-70-4I-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201-70-4I-EKE-T?
SST39VF3201-70-4I-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201-70-4I-EKE-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 SST39VF3201-70-4I-EKE-T?
For technical support, including SST39VF3201-70-4I-EKE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201-70-4I-EKE-T requirements.
6.How does Aetrix verify that SST39VF3201-70-4I-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF3201-70-4I-EKE-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 SST39VF3201-70-4I-EKE-T meets industry standards.
7.What is the process for return or replacement of SST39VF3201-70-4I-EKE-T?
All SST39VF3201-70-4I-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201-70-4I-EKE-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 SST39VF3201-70-4I-EKE-T part is unused and in its original packaging.
Return procedure for SST39VF3201-70-4I-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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