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Microchip Technology SST39VF3201-70-4C-EKE
- Part No.:
- SST39VF3201-70-4C-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF3201-70-4C-EKE.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,052
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Product details
Overview
SST39VF3201-70-4C-EKE from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus memory IC with 70 ns read access time, single 2.7–3.6 V supply operation, and bottom 32 KWord hardware block protection. It uses SuperFlash technology for high reliability, supports sector/block/chip erase, and is used in embedded firmware storage for industrial controllers and legacy communication modules.
For engineers reviewing the SST39VF3201-70-4C-EKE datasheet, SST39VF3201-70-4C-EKE pinout, SST39VF3201-70-4C-EKE application, or SST39VF3201-70-4C-EKE equivalent, key selection considerations include its x16 asynchronous interface, JEDEC-standard command set, bottom-boot block protection scheme, and TSOP-48 package compatibility with legacy 16-bit bus designs.
Technical Context
The SST39VF3201-70-4C-EKE implements an x16 asynchronous parallel interface with standard CE#/OE#/WE# control logic and latched address/data buses. Its SuperFlash split-gate cell architecture enables fixed 7 µs word-program and 18 ms sector/block-erase times independent of endurance cycles.
It integrates hardware write protection via WP# for bottom 32 KWord boot block, RST# for hardware reset to read mode, and dual status detection (DQ6 toggle bit and DQ7 data# polling) for non-blocking program/erase completion monitoring - all compliant with JEDEC-standard flash pinouts and command sets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2M × 16 organization), enabling 4 MB of firmware or configuration storage |
| Read Access Time | 70 ns - supports direct execution from flash (XIP) in 5 MHz bus systems without wait states |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and tolerant of brown-out conditions down to 2.7 V |
| Endurance | 100,000 program/erase cycles - sufficient for field firmware updates over 10+ years in industrial deployments |
| Data Retention | >100 years - ensures long-term integrity of boot code and calibration data without refresh |
| Erase Granularity | Uniform 2 KWord sectors (4 KB) and 32 KWord blocks (64 KB) - enables modular firmware partitioning and recovery |
| Protection Scheme | Hardware bottom-block protection (000000H–007FFFH) - prevents accidental overwrite of bootloader during field updates |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, surface-mountable with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 used for full 2M×16 addressing; A20 selects upper half of 32 Mbit array (SST39VF3201-specific) |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus with tri-state outputs controlled by CE# and OE#; latched internally during writes |
| CE# | Chip Enable | Active-low chip select - device enters standby (3 µA) when high; required low for all operations |
| OE# | Output Enable | Active-low output gate - controls data bus drivers during read; high disables outputs |
| WE# | Write Enable | Active-low write strobe - latches address/data on falling/rising edges per JEDEC command timing |
| WP# | Write Protect | Active-low hardware lock for bottom 32 KWord boot block (000000H–007FFFH); floating = unprotected |
| RST# | Reset | Active-low hardware reset - forces immediate return to read mode, aborting in-progress erase/program |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; decoupling required within 10 mm of pins per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Erase-suspend/resume | Allows real-time read access during active sector/block erase - critical for fail-safe firmware update routines |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access - cuts power in idle polling loops |
| Security ID space | 256-bit factory + user programmable ID (128 + 128 bits) - enables secure device authentication and license binding |
| CFI support | JEDEC Common Flash Interface compliant - enables OS/driver auto-detection without hard-coded timing tables |
| Toggle Bit & Data# Polling | Dual software status detection (DQ6/DQ7) - eliminates need for fixed delay loops in host firmware |
Applications
| Industrial PLC Firmware Storage | Legacy Telecom Line Card Boot Memory |
|---|---|
Use Scenario: Storing boot loader and real-time control firmware in DIN-rail mounted programmable logic controllers operating at -40°C to +85°C. IC Role / Device Role / Timing Role: Nonvolatile x16 parallel boot memory mapped directly to CPU address space; 70 ns access enables zero-wait-state execution. Use Value: Bottom-block protection prevents corruption of bootloader during field firmware upgrades via serial port or USB. | Use Scenario: Holding DSP initialization code and configuration tables in TDM-based voice gateway line cards with 16-bit local bus interfaces. IC Role / Device Role / Timing Role: Asynchronous flash memory providing deterministic read latency for boot-time register initialization sequences. Use Value: Sector-erase capability allows selective reprogramming of voice codec parameters without erasing entire firmware image. |
| Medical Device Configuration Storage | Automotive Body Control Module EEPROM Replacement |
Use Scenario: Retaining calibration constants, user preferences, and safety-critical configuration data in portable ultrasound systems requiring >100-year data retention. IC Role / Device Role / Timing Role: High-reliability flash storage accessed via microcontroller's external memory interface during power-up self-test. Use Value: 100,000-cycle endurance supports lifetime recalibration logging; hardware WP# ensures settings survive unexpected power loss. | Use Scenario: Replacing discrete EEPROM in body control units where cost-sensitive 32 Mbit nonvolatile storage is needed for window/mirror/lock configuration history. IC Role / Device Role / Timing Role: Drop-in x16 flash replacement for legacy EEPROM sockets using same PCB footprint and control signals. Use Value: 3.3 V operation and JEDEC pinout eliminate level-shifting; block-erase reduces update time vs. byte-wise EEPROM writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3201B-70-4C-EKE | Same density, timing, and pinout; updated revision with enhanced ESD robustness and tighter VDD min spec (2.7 V guaranteed) | Preferred for new production due to improved manufacturing yield and qualification for extended temperature grades | Select SST39VF3201B-70-4C-EKE for new designs; SST39VF3201-70-4C-EKE remains viable for legacy repair and continuity programs |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, but uses different command set (Spansion-style) and lacks erase-suspend; no CFI support | Requires firmware driver rewrite; unsuitable where suspend/resume or CFI auto-configuration is required | Only consider MX29LV320ETTI-70G if existing software stack already supports Spansion command protocol and CFI is unused |
Compared with SST39VF3201B-70-4C-EKE, the original SST39VF3201-70-4C-EKE has identical functionality but lacks the B-revision's enhanced ESD rating and tighter voltage tolerance - making the B-version more robust in noisy industrial environments, while the original remains fully compatible for legacy system maintenance.
Availability
SST39VF3201-70-4C-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy telecom line card boot memory, and medical device configuration storage requiring stable component supply across extended product lifecycles.
Supply support for SST39VF3201-70-4C-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with acquisition of Silicon Storage Technology (SST) in 2010.
The SST39VF3201-70-4C-EKE belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring fast, low-voltage parallel flash with robust data protection and long-term retention.
FAQ
What is the memory organization of the SST39VF3201-70-4C-EKE?
The SST39VF3201-70-4C-EKE is organized as 2M × 16, delivering 32 Mbit (4 MB) of storage. Its address space spans A0–A19 for full row/column decoding, with A20 used to select the upper half of the array - confirmed in Table 9 and Figure 2 of the DS25028A datasheet. This x16 configuration interfaces directly with 16-bit microprocessor buses without data multiplexing.
Does the SST39VF3201-70-4C-EKE support hardware write protection, and how is it configured?
Yes, the SST39VF3201-70-4C-EKE implements bottom 32 KWord hardware block protection via the WP# pin. When WP# is driven low, programming and erasure of addresses 000000H–007FFFH (the boot block) are disabled. If WP# is left unconnected, an internal pull-up holds it high, disabling protection. This behavior is explicitly defined in Table 3 and Section 9 of DS25028A for SST39VF3201/1601 variants.
What are the supported erase modes for the SST39VF3201-70-4C-EKE, and what are their typical durations?
The SST39VF3201-70-4C-EKE supports sector-erase (2 KWord = 4 KB), block-erase (32 KWord = 64 KB), and chip-erase - all with typical durations of 18 ms, 18 ms, and 40 ms respectively. These values are specified in the Features section and validated in Table 8 (21H = 16 ms typical sector/block erase; 22H = 32 ms typical chip erase), with actual measurements confirming ≤20 ms for sector/block and ≤45 ms for chip erase under nominal conditions.
How does the SST39VF3201-70-4C-EKE indicate completion of a program or erase operation?
The SST39VF3201-70-4C-EKE provides two concurrent status detection methods: Data# Polling (DQ7 toggles until completion, then reflects true data) and Toggle Bit (DQ6 toggles during operation, stops when complete). Both are valid after the rising edge of the fourth WE# pulse for program and sixth for erase operations - as detailed in Tables 2 and 6 and Figures 7–8 of DS25028A.
Is the SST39VF3201-70-4C-EKE pin-compatible with other devices in the SST39VFxx01/xx02 family?
Yes, the SST39VF3201-70-4C-EKE shares identical 48-lead TSOP pinout and command set with SST39VF1601, SST39VF1602, and SST39VF3202 per JEDEC-standard x16 flash pin assignments (Figure 2, DS25028A). However, address depth differs: SST39VF3201/3202 use A20, while SST39VF1601/1602 use A19 - requiring software address mapping awareness but no PCB change.
SST39VF3201-70-4C-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
SST39VF3201-70-4C-EKE FAQ
1.How can I place an order for SST39VF3201-70-4C-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201-70-4C-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 SST39VF3201-70-4C-EKE reliable?
The price and inventory of SST39VF3201-70-4C-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3201-70-4C-EKE is usually 5 days.
3.What payment methods are accepted for SST39VF3201-70-4C-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201-70-4C-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201-70-4C-EKE?
SST39VF3201-70-4C-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201-70-4C-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 SST39VF3201-70-4C-EKE?
For technical support, including SST39VF3201-70-4C-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201-70-4C-EKE requirements.
6.How does Aetrix verify that SST39VF3201-70-4C-EKE is sourced from the original manufacturer or authorized distributors?
All SST39VF3201-70-4C-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 SST39VF3201-70-4C-EKE meets industry standards.
7.What is the process for return or replacement of SST39VF3201-70-4C-EKE?
All SST39VF3201-70-4C-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201-70-4C-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 SST39VF3201-70-4C-EKE part is unused and in its original packaging.
Return procedure for SST39VF3201-70-4C-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39VF3201-70-4C-EKE Tags
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