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Microchip Technology SST39VF1682-70-4C-EKE-T
- Part No.:
- SST39VF1682-70-4C-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF1682-70-4C-EKE-T.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
SST39VF1682-70-4C-EKE-T from Microchip Technology is a 16 Mbit (2M × 8) Multi-Purpose Flash Plus (MPF+) memory IC with JEDEC-standard x8 asynchronous interface, 70 ns read access time, and top 64 KByte hardware block protection. It operates from a single 2.7–3.6 V supply and supports byte-program, sector-erase (4 KByte), block-erase (64 KByte), and chip-erase functions in embedded boot code storage applications.
For engineers reviewing the SST39VF1682-70-4C-EKE-T datasheet, SST39VF1682-70-4C-EKE-T pinout, SST39VF1682-70-4C-EKE-T application, or SST39VF1682-70-4C-EKE-T equivalent, key selection considerations include its top-boot block protection scheme, SuperFlash® endurance (100,000 cycles), 100+ year data retention, Auto Low Power mode (3 µA), and compatibility with standard microprocessor bus timing for legacy 8-bit host interfaces.
Technical Context
The SST39VF1682-70-4C-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-unlike conventional flash. Its command-set architecture follows JEDEC-standard x8 pinouts and supports software data protection (SDP) via three-byte unlock sequences for program and six-byte sequences for erase operations.
Hardware features include dedicated WP# for top-block protection, RST# for hardware reset to read mode, and dual status detection (DQ7 Data# Polling and DQ6/DQ2 Toggle Bits) for non-blocking write completion monitoring. The device supports Erase-Suspend/Erase-Resume for concurrent read/program during active erase, and includes CFI Query mode for runtime device characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2,097,152 × 8 bits); supports full boot code, firmware, and configuration storage in space-constrained 8-bit systems. |
| Read Access Time | 70 ns max; enables direct execution (XIP) from flash in microcontroller-based systems without wait states at ≤14 MHz bus clocks. |
| Supply Voltage | 2.7–3.6 V single supply; compatible with 3.3 V logic domains and eliminates need for separate VPP programming voltage. |
| Endurance & Retention | 100,000 program/erase cycles typical; >100 years data retention - validated for industrial lifecycle requirements without refresh. |
| Power Consumption | 9 mA active current (5 MHz), 3 µA standby & Auto Low Power modes; reduces system-level power budget in always-on embedded nodes. |
| Erase/Program Speed | Sector/block-erase: 18 ms typical; chip-erase: 40 ms; byte-program: 7 µs - enables fast field firmware updates and dynamic parameter storage. |
| Protection Scheme | Top 64 KByte hardware block protection via WP# pin; prevents accidental overwrite of critical boot loader code during field upgrades. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard pinout per JEDEC MO-142AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | 21-bit address bus (AMS = A20); A12–A20 select sector during Sector-Erase; A16–A20 select block during Block-Erase. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; latched internally during writes; tri-stated when CE# or OE# high; DQ6/DQ2 used for toggle-bit status monitoring. |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write operations; controls address/data latch timing with WE#. |
| OE# | Output Enable | Active-low output gate; enables data output only when CE# and OE# both low; high-Z state prevents bus contention. |
| WE# | Write Enable | Active-low control for write cycles; falling edge latches address; rising edge latches data; initiates internal program/erase timing. |
| WP# | Write Protect | Active-low top-block protection; grounded to lock top 64 KByte (0x1F0000–0x1FFFFF); floating = internally pulled high = unprotected. |
| RST# | Reset | Active-low hardware reset; forces immediate return to Read mode; required TRP pulse width ≥100 ns to abort in-progress operations. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; VSS pins provide low-impedance return path for I/O and core logic; decoupling mandatory near package. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell + thick-oxide injector enables fixed 18 ms erase time across full 100k-cycle lifetime - no software de-rating needed. |
| Erase-Suspend/Resume | Allows real-time read access to non-suspended sectors during active erase; enables GUI responsiveness or diagnostics in firmware-updating systems. |
| Security ID Space | 256-bit segmented ID (128-bit factory-locked SST ID + 128-bit user-programmable segment) for secure device authentication and traceability. |
| CFI Query Support | Standard Common Flash Interface allows runtime detection of geometry, timing, and command set - simplifies BSP porting across flash vendors. |
| Auto Low Power Mode | Automatically enters 3 µA standby after valid read; exits on any address/control transition with zero access penalty - ideal for intermittent polling systems. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Loader |
|---|---|
|
Use Scenario: Storing certified boot firmware and safety-critical configuration parameters in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; provides deterministic 70 ns read access for cold-start execution. Use Value: Top-block protection prevents corruption of bootloader during field firmware updates; 100k-cycle endurance supports 10+ years of scheduled maintenance cycles. |
Use Scenario: Holding FDA-approved boot code and calibration data in portable diagnostic equipment requiring long-term data integrity. IC Role / Device Role / Timing Role: Primary x8 flash memory interfaced to ARM7/ Cortex-M3 microcontroller; accessed via standard parallel bus with OE#/CE# handshaking. Use Value: >100-year data retention meets medical device shelf-life requirements; Security ID enables unique device binding for regulatory audit trails. |
| Telecom Base Station Configuration | Automotive Infotainment Head Unit |
|
Use Scenario: Storing carrier-specific configuration profiles and radio calibration tables in LTE small-cell base stations operating in extended temperature ranges. IC Role / Device Role / Timing Role: Configuration memory with hardware write protection; accessed during power-up initialization and runtime parameter loading. Use Value: Industrial temp grade (-40°C to +85°C) ensures reliability in uncontrolled outdoor enclosures; sector-erase enables selective profile updates without full reflash. |
Use Scenario: Hosting infotainment OS kernel and UI assets in automotive head units where ECU firmware must survive repeated ignition cycles. IC Role / Device Role / Timing Role: Boot flash memory supporting XIP execution; integrated into 8-bit parallel bus with microcontroller's external memory interface. Use Value: Single 3.3 V supply simplifies power design; Auto Low Power mode reduces quiescent current during vehicle sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel-interface flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV160CTTI-70G | 16 Mbit (2M×8), 70 ns, top-boot, but uses older floating-gate tech; 100k cycles, 20-year retention; no Erase-Suspend or Security ID. | Lacks suspend/resume and CFI; requires longer erase times that increase with wear; no hardware-assisted status monitoring. | Choose only if legacy design reuse mandates identical pinout and command set; not recommended for new designs requiring long-term reliability. |
| S29AL016J70TFI020 | 16 Mbit (2M×8), 70 ns, top-boot; 100k cycles, 20-year retention; supports CFI and basic SDP but no Security ID or Auto Low Power mode. | No low-power optimization for battery-backed systems; lacks toggle-bit dual-status reporting; slower typical sector-erase (25 ms). | Acceptable for cost-sensitive industrial applications where power budget and security are secondary; verify timing margins with host controller. |
Compared with MX29LV160CTTI-70G and S29AL016J70TFI020, the SST39VF1682-70-4C-EKE-T delivers superior long-term data integrity (>100 years), deterministic erase timing, and integrated power-saving features - making it optimal for mission-critical embedded systems requiring field-upgradable firmware with zero risk of bootloader corruption.
Availability
SST39VF1682-70-4C-EKE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot loaders, telecom base station configuration, and automotive infotainment head units requiring stable component supply across multi-year production lifecycles.
Supply support for SST39VF1682-70-4C-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 acquired Silicon Storage Technology (SST) in 2010 and now manufactures and supports the SST39VF1682-70-4C-EKE-T as part of its broad legacy flash portfolio.
This device belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for reliable, low-voltage, pin-compatible replacement of older parallel NOR flash in industrial, medical, and communications equipment requiring long-term firmware storage.
FAQ
What is the difference between SST39VF1682-70-4C-EKE-T and SST39VF1681?
The SST39VF1682-70-4C-EKE-T implements top 64 KByte hardware block protection (address range 0x1F0000–0x1FFFFF), whereas the SST39VF1681 protects the bottom 64 KByte (0x000000–0x00FFFF). Both share identical density, timing, command set, and SuperFlash® technology - the distinction is solely in the protected boot block location, selected via WP# pin behavior.
Does SST39VF1682-70-4C-EKE-T require an external VPP voltage for programming?
No. The SST39VF1682-70-4C-EKE-T generates internal VPP for all program and erase operations using its 2.7–3.6 V VDD supply only - no external high-voltage source is needed. This simplifies board design and eliminates VPP-related layout constraints or charge-pump circuitry.
How does the Auto Low Power mode function in SST39VF1682-70-4C-EKE-T?
The SST39VF1682-70-4C-EKE-T automatically enters a 3 µA standby state after completing a valid read operation while CE# remains low. It exits instantly on any address or control signal transition (e.g., CE#, OE#, or A0–A20 change) with no added access delay - ideal for systems performing periodic register polling.
Can SST39VF1682-70-4C-EKE-T be used in place of SST39VF1682-70-4I-EKE-T?
Yes, but only in commercial-temperature environments (0°C to +70°C). The SST39VF1682-70-4C-EKE-T is rated for commercial grade, while the -4I variant supports industrial temperature (-40°C to +85°C). Electrical specifications and pinout are identical; thermal validation is required for deployment outside 0°C–70°C.
What command sequence initiates sector erase in SST39VF1682-70-4C-EKE-T?
To initiate sector erase in the SST39VF1682-70-4C-EKE-T, execute the six-byte command sequence: 0x555/0xAA → 0x2AA/0x55 → 0x555/0x80 → 0x555/0xAA → 0x2AA/0x55 → [Sector Address]/0x50. The sector address uses AMS–A12 lines; the final 0x50 command latches on the rising edge of the sixth WE# pulse.
SST39VF1682-70-4C-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:
- 16Mbit
- Memory Organization:
- 2M x 8
- 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
SST39VF1682-70-4C-EKE-T FAQ
1.How can I place an order for SST39VF1682-70-4C-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF1682-70-4C-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 SST39VF1682-70-4C-EKE-T reliable?
The price and inventory of SST39VF1682-70-4C-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 SST39VF1682-70-4C-EKE-T is usually 5 days.
3.What payment methods are accepted for SST39VF1682-70-4C-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF1682-70-4C-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF1682-70-4C-EKE-T?
SST39VF1682-70-4C-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF1682-70-4C-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 SST39VF1682-70-4C-EKE-T?
For technical support, including SST39VF1682-70-4C-EKE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF1682-70-4C-EKE-T requirements.
6.How does Aetrix verify that SST39VF1682-70-4C-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF1682-70-4C-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 SST39VF1682-70-4C-EKE-T meets industry standards.
7.What is the process for return or replacement of SST39VF1682-70-4C-EKE-T?
All SST39VF1682-70-4C-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF1682-70-4C-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 SST39VF1682-70-4C-EKE-T part is unused and in its original packaging.
Return procedure for SST39VF1682-70-4C-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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