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Microchip Technology SST39VF1601-70-4I-EKE
- Part No.:
- SST39VF1601-70-4I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF1601-70-4I-EKE.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:322
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Product details
Overview
SST39VF1601-70-4I-EKE from Microchip Technology is a 16 Mbit (1M × 16) CMOS Multi-Purpose Flash Plus memory IC with JEDEC-standard x16 asynchronous interface, 70 ns read access time, bottom-block hardware write protection, and SuperFlash technology enabling 100,000 program/erase cycles. It operates from 2.7–3.6 V and supports sector/block/chip erase, erase-suspend/resume, and security ID for embedded firmware storage in industrial controllers.
For engineers reviewing the SST39VF1601-70-4I-EKE datasheet, SST39VF1601-70-4I-EKE pinout, SST39VF1601-70-4I-EKE application, or SST39VF1601-70-4I-EKE equivalent, this page delivers verified technical context, JEDEC-compliant pin mapping, real-world use cases in legacy boot code storage, and two validated alternative flash parts with documented functional and packaging differences.
Technical Context
The SST39VF1601-70-4I-EKE implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, delivering fixed 7 µs word-program and 18 ms sector/block-erase times independent of cycle count-eliminating software de-rating. Its command set follows JEDEC JESD21-C standards for x16 flash, supporting 6-byte erase sequences and 3-byte program initiation with hardware WP#-based bottom-boot block lock.
It features dual status detection via DQ7 (Data# Polling) and DQ6/DQ2 (Toggle Bits), auto low-power mode reducing active read current to 3 µA after valid access, and CFI-compliant query capability for runtime configuration identification. The device exits all non-read modes-including erase-suspend-via RST# or software exit commands, ensuring deterministic recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words): matches 2 MB byte-addressable space for BIOS/firmware images. |
| Read Access Time | 70 ns maximum: enables direct connection to 14 MHz bus without wait states in legacy microcontroller systems. |
| Supply Voltage | 2.7–3.6 V single supply: compatible with 3.3 V logic rails and eliminates need for separate VPP programming voltage. |
| Endurance | 100,000 program/erase cycles (typical): supports field firmware updates over 10+ years in industrial PLCs. |
| Data Retention | >100 years at +25°C: ensures long-term reliability for unattended equipment with infrequent reprogramming. |
| Erase Granularity | Uniform 2 KWord sectors (4 KB) and 32 KWord blocks (64 KB): allows precise firmware patching without full chip erase. |
| Hardware Protection | Bottom 32 KWord (64 KB) boot block protected when WP# = low: prevents accidental overwrite of startup code. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm, standard pinout, die-up orientation). Pin assignments conform to JEDEC MO-141AC, with A19 as MSB address line and dedicated RST#, WP#, and control pins for robust system integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | A0–A18 select 1M-word array; A19 (MSB) enables full 16 Mbit addressing and identifies SST39VF1601 vs. 3201 in family. |
| DQ0–DQ15 | Data I/O (x16) | Bidirectional 16-bit data bus with internal latching; tri-stated when CE# or OE# high per JEDEC standard. |
| CE# | Chip Enable | Active-low chip select: must be low to enable any operation; high state forces standby (3 µA). |
| OE# | Output Enable | Active-low output gate: controls data bus drive during read; independent of CE# for flexible timing. |
| WE# | Write Enable | Active-low write strobe: latches address/data on falling/rising edge per JEDEC command protocol. |
| WP# | Write Protect | Active-low hardware lock for bottom 32 KWord boot block; internally pulled up if floating. |
| RST# | Reset | Active-low hardware reset: terminates in-progress erase/program and returns to read mode within TRP. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; dual VSS pins (pins 23 & 48) reduce ground bounce in high-speed reads. |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows real-time read access to non-suspended sectors during erase-critical for watchdog-safe firmware updates. |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access, cutting power by >99% in polling-based systems. |
| Security ID Space | 256-bit factory/user programmable ID (128+128 bits) with lock-out-enables secure device authentication and traceability. |
| CFI Query Support | JEDEC-standard Common Flash Interface enables automatic driver detection and runtime parameter negotiation. |
| Toggle Bit & Data# Polling | Dual-status feedback (DQ6/DQ2 toggle + DQ7 polling) provides deterministic, software-driven write completion detection. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in DIN-rail mounted programmable logic controllers with no external backup power. IC Role / Device Role / Timing Role: Nonvolatile x16 boot memory mapped to CPU address space; executes in-place (XIP) during cold start. Use Value: Bottom-block protection prevents corruption of startup code during field updates; 100-year retention ensures 20+ year deployment without refresh. |
Use Scenario: Holding legacy Award/AMI BIOS code in desktop motherboards using ISA/PCI bus interfaces. IC Role / Device Role / Timing Role: JEDEC-compliant x16 flash replacing EPROMs; accessed via 70 ns read cycle synchronized to 14 MHz clock. Use Value: Eliminates UV-erasable window and programming hardware; single 3.3 V supply simplifies board power design. |
| Medical Device Configuration Storage | Telecom Line Card Boot Image |
Use Scenario: Saving calibration tables and safety-critical configuration parameters in FDA-cleared diagnostic imaging equipment. IC Role / Device Role / Timing Role: Secure, write-protected memory storing immutable boot parameters and user-adjustable settings. Use Value: Hardware WP# lock + Security ID prevents unauthorized tampering; 100,000-cycle endurance supports recalibration logs over device lifetime. |
Use Scenario: Hosting boot firmware for carrier-grade DSLAM line cards requiring hot-swap capability and field upgrades. IC Role / Device Role / Timing Role: Primary boot flash with erase-suspend support-allows background firmware validation while maintaining service uptime. Use Value: Sector-erase granularity (4 KB) enables delta updates without service interruption; CFI enables auto-negotiated driver loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-70-4I-EKE | Successor variant with enhanced ESD rating (4 kV HBM), identical pinout/timing, and updated process node. | Required for new designs per Microchip notice; same boot block protection and CFI support. | Select when designing new products-offers improved robustness without layout changes. |
| MX29LV160ETTI-70G | 16 Mbit x16 flash from Macronix; 70 ns access, bottom-boot block, but uses different command set (no erase-suspend). | Lacks erase-suspend/resume; requires modified driver stack; same TSOP-48 package and voltage range. | Choose only if existing firmware already supports Macronix command protocol and suspend functionality is unused. |
Compared with SST39VF1601-70-4I-EKE, the SST39VF1601C offers higher ESD immunity for new designs, while MX29LV160ETTI-70G provides drop-in package compatibility but requires firmware adaptation due to missing erase-suspend and differing status bit behavior.
Availability
SST39VF1601-70-4I-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS replacement, medical device configuration, and telecom line card boot image applications requiring stable component supply and long-lifecycle support.
Supply support for SST39VF1601-70-4I-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 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 SST39VF1601-70-4I-EKE belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring JEDEC-compliant x16 flash with hardware boot protection and long data retention.
FAQ
What is the memory organization and density of the SST39VF1601-70-4I-EKE?
The SST39VF1601-70-4I-EKE is organized as 1M × 16 bits, delivering 16 Mbit (2 MB) of nonvolatile storage. This configuration supports byte-wide or word-wide addressing in x16 bus systems and is explicitly confirmed in the datasheet's Product Description and Table 9 (Device Geometry Information). Its density matches legacy BIOS and firmware requirements where 2 MB capacity suffices for boot code and configuration data.
Does the SST39VF1601-70-4I-EKE support hardware write protection, and how is it implemented?
Yes, the SST39VF1601-70-4I-EKE implements bottom-block hardware write protection via the WP# pin. When WP# is driven low, the bottom 32 KWord (64 KB) boot block is locked against program and erase operations-verified in Table 3 (Boot Block Address Ranges) and the Hardware Block Protection section. This protects critical startup code and is distinct from the top-block protection used in SST39VF1602.
What are the supported erase capabilities of the SST39VF1601-70-4I-EKE?
The SST39VF1601-70-4I-EKE supports three erase modes: sector-erase (2 KWord = 4 KB), block-erase (32 KWord = 64 KB), and chip-erase. Typical times are 18 ms for sector/block and 40 ms for chip-erase, as specified in the Features list and Table 8. All modes use JEDEC-standard 6-byte command sequences and support status detection via DQ6 toggle or DQ7 polling.
Is the SST39VF1601-70-4I-EKE pin-compatible with other devices in the SST39VF160x family?
Yes, the SST39VF1601-70-4I-EKE shares identical pinout, package (48-lead TSOP), and JEDEC x16 interface with SST39VF1602, SST39VF3201, and SST39VF3202. However, address depth differs: SST39VF1601 uses A19 as MSB (1M words), while SST39VF3201 uses A20 (2M words)-confirmed in Table 1 (Pin Description) and Figure 2. Software must validate device ID (0x234B) before assuming behavior.
What is the significance of the "Not Recommended for New Designs" status for the SST39VF1601-70-4I-EKE?
Microchip explicitly marks SST39VF1601-70-4I-EKE as "Not Recommended for New Designs" in DS25028A, advising migration to SST39VF1601C for enhanced ESD performance and process improvements. The original part remains fully functional and supported for existing designs, with no change in electrical specs, timing, or pinout-but new projects should adopt the C-suffix variant to ensure long-term supply and reliability.
SST39VF1601-70-4I-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:
- 16Mbit
- Memory Organization:
- 1M 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
SST39VF1601-70-4I-EKE FAQ
1.How can I place an order for SST39VF1601-70-4I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF1601-70-4I-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 SST39VF1601-70-4I-EKE reliable?
The price and inventory of SST39VF1601-70-4I-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF1601-70-4I-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF1601-70-4I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF1601-70-4I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF1601-70-4I-EKE?
SST39VF1601-70-4I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF1601-70-4I-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 SST39VF1601-70-4I-EKE?
For technical support, including SST39VF1601-70-4I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF1601-70-4I-EKE requirements.
6.How does Aetrix verify that SST39VF1601-70-4I-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF1601-70-4I-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 SST39VF1601-70-4I-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF1601-70-4I-EKE?
All SST39VF1601-70-4I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF1601-70-4I-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 SST39VF1601-70-4I-EKE part is unused and in its original packaging.
Return procedure for SST39VF1601-70-4I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF1601-70-4I-EKE Tags
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