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Microchip Technology SST39VF3201C-70-4I-EKE-T
- Part No.:
- SST39VF3201C-70-4I-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39VF3201C-70-4I-EKE-T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SST39VF3201C-70-4I-EKE-T from Microchip Technology is a 32-Mbit (2M × 16) CMOS Multi-Purpose Flash Plus (MPF+) memory IC with bottom-boot block protection, 70 ns read access time, 2.7V–3.6V single-supply operation, and hardware write-protection via WP# pin. It serves as nonvolatile program/data storage in embedded controllers requiring field-upgradable firmware and secure boot code retention.
For engineers reviewing the SST39VF3201C-70-4I-EKE-T datasheet, SST39VF3201C-70-4I-EKE-T pinout, SST39VF3201C-70-4I-EKE-T application, or SST39VF3201C-70-4I-EKE-T equivalent, key selection criteria include bottom-block hardware protection architecture, 100,000-cycle endurance, RY/BY# status signaling, uniform 2-KWord sector erase, and TSOP/TBGA package compatibility with JEDEC x16 memory interfaces.
Technical Context
This device implements 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 supports Software Data Protection (SDP) with three-byte unlock sequences for word-program and six-byte sequences for sector/block/chip-erase operations.
The SST39VF3201C-70-4I-EKE-T features dual status detection: DQ6/DQ2 toggle bits and DQ7 data-polling, plus open-drain RY/BY# output with external pull-up. Hardware block protection targets the bottom two 4-KWord blocks (000000H–001FFFH), distinguishing it from the top-protected SST39VF3202C variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2M × 16 (32 Mbit); enables 16-bit parallel data bus interfacing with microcontrollers and SoCs |
| Read Access Time | 70 ns; supports high-speed instruction fetch and data read in real-time embedded systems |
| Supply Voltage | 2.7V–3.6V; compatible with 3.3V logic domains without level-shifting |
| Endurance | 100,000 program/erase cycles; ensures long-term reliability in firmware update applications |
| Data Retention | >100 years; guarantees persistent storage of boot code and configuration without refresh |
| Erase Architecture | Uniform 2-KWord sectors + flexible 4/32-KWord blocks; allows granular updates without full-chip erasure |
| Write Protection | Hardware bottom-block protection (000000H–001FFFH); prevents accidental overwrite of boot loader region |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, JEDEC-standard x16 pinout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | 21-bit address bus; A20 is AMS (most significant) for sector/block selection during erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; latched internally during writes; tri-state when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; deactivates device to reduce standby current to 4 µA |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state |
| WE# | Write Enable | Active-low control for write cycles; latches address/data on falling/rising edges per JEDEC timing |
| WP# | Write-Protect | Active-low hardware lock for bottom two 4-KWord boot blocks (000000H–001FFFH) |
| RST# | Reset | Active-low hardware reset; terminates ongoing erase/program and forces return to read mode |
| RY/BY# | Ready/Busy# | Open-drain status output; requires 10–100 kΩ pull-up; low = active erase/program, high = ready |
| VDD | Power Supply | 2.7V–3.6V supply; powers all internal logic and memory array |
| VSS | Ground | Reference ground for all signals and power domains |
| NC | No Connection | Unbonded pins (e.g., Pin 3, Pin 26 in TSOP); must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows temporary halt of sector/block erase to read other memory regions or program unprotected areas-critical for real-time interrupt handling |
| Auto Low-Power Mode | Reduces active read current from 6 mA to 4 µA after valid read access, lowering average power in burst-read applications |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable space, locked permanently to prevent tampering with device identity |
| CFI Support | Common Flash Interface compliant; enables automatic detection of geometry, timing, and command set by host bootloader or OS |
| Toggle Bit & Data# Polling | Dual software status detection (DQ6/DQ2 toggle + DQ7 polling) eliminates need for fixed delay loops and improves system efficiency |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Loader |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile program memory providing fast 70 ns read access for deterministic boot and runtime code execution. Use Value: Bottom-block hardware protection ensures boot loader integrity against corruption during field firmware updates over CAN or Ethernet. | Use Scenario: Holding primary boot code and secure boot keys in automotive head units requiring ASIL-B–compatible storage. IC Role / Device Role / Timing Role: Boot ROM replacement with hardware write-lock on critical startup vectors (000000H–001FFFH). Use Value: 100-year data retention and 100,000-cycle endurance meet automotive lifecycle requirements without refresh or wear leveling. |
| Medical Device Configuration Memory | Networking Equipment Parameter Storage |
Use Scenario: Retaining calibration data, user preferences, and safety-critical settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, low-power configuration store accessed during power-on self-test and runtime parameter recall. Use Value: Security ID feature enables device authentication and traceability; RY/BY# pin simplifies status monitoring in resource-constrained MCU designs. | Use Scenario: Storing MAC addresses, firmware version metadata, and network stack parameters in enterprise switches and routers. IC Role / Device Role / Timing Role: JEDEC-compliant x16 interface memory supporting parallel bus architectures in legacy and cost-sensitive networking silicon. Use Value: Uniform 2-KWord sector erase enables atomic parameter updates without disrupting adjacent configuration blocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3202C-70-4I-EKE-T | Top-boot block protection (1FE000H–1FFFFFH) instead of bottom-boot; identical timing, voltage, and command set | Used where boot code resides in upper memory map; not interchangeable without firmware address remapping | Select only if system boot vector is located in top 8 KWords |
| MX29LV320ETTI-70G | 32-Mbit x16, 70 ns, 2.7–3.6 V, but uses different command sequences and lacks RY/BY# pin; no Security ID | Requires modified driver software; no hardware status pin necessitates polling-only implementation | Choose when legacy design already uses Macronix command set and board layout cannot accommodate RY/BY# routing |
Compared with SST39VF3202C-70-4I-EKE-T, the SST39VF3201C-70-4I-EKE-T provides bottom-boot protection essential for standard low-address boot loaders; versus MX29LV320ETTI-70G, it delivers superior system-level reliability via RY/BY# signaling and integrated security ID-reducing firmware validation overhead.
Availability
SST39VF3201C-70-4I-EKE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot loader, and medical device configuration memory requiring stable component supply across extended production lifecycles.
Supply support for SST39VF3201C-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 Inc. is a leading provider of microcontroller, analog, FPGA, and memory solutions, serving industrial, automotive, and communications markets with high-reliability semiconductor products.
The SST39VF3201C belongs to Microchip's Multi-Purpose Flash Plus (MPF+) product line, designed specifically for embedded systems needing robust, low-voltage, field-upgradable nonvolatile memory with hardware-based data protection and deterministic timing.
FAQ
What is the boot block protection scheme implemented in the SST39VF3201C-70-4I-EKE-T?
The SST39VF3201C-70-4I-EKE-T implements bottom-block hardware protection, locking the lowest two 4-KWord blocks (000000H–001FFFH) against program/erase when WP# is grounded. This ensures boot loader and startup code integrity. Unlike the SST39VF3202C variant, the SST39VF3201C-70-4I-EKE-T does not protect top-address blocks. The protection is physical and cannot be overridden by software commands.
Does the SST39VF3201C-70-4I-EKE-T support both TSOP and TFBGA packages?
Yes, the SST39VF3201C-70-4I-EKE-T is qualified in both 48-lead TSOP (12 mm × 20 mm) and 48-ball TFBGA (6 mm × 8 mm) packages. The EKE-T suffix explicitly denotes the TSOP variant. Pin functions and electrical specifications are identical across both packages, though layout and thermal characteristics differ-TSOP offers easier rework, while TFBGA enables higher board density.
How does the RY/BY# pin function during erase and program operations in the SST39VF3201C-70-4I-EKE-T?
The RY/BY# pin on the SST39VF3201C-70-4I-EKE-T is an open-drain output requiring an external 10–100 kΩ pull-up resistor. It drives low during active erase or program operations and transitions high when complete. This hardware status signal eliminates software polling delays, enabling deterministic timing in real-time systems. The SST39VF3201C-70-4I-EKE-T guarantees RY/BY# validity after the rising edge of the final WE# pulse in any command sequence.
Can the Security ID space in the SST39VF3201C-70-4I-EKE-T be erased or rewritten after programming?
No. The Security ID space in the SST39VF3201C-70-4I-EKE-T consists of a factory-programmed 128-bit segment and a 128-word user-programmable segment. Once the User Sec ID Program Lock-Out command is executed, the entire Security ID space becomes permanently read-only. Neither segment can be erased-even with chip-erase-and programmed bits (0) cannot be reverted to 1. This ensures irreversible device identity binding.
What is the difference between Data# Polling (DQ7) and Toggle Bit (DQ6/DQ2) status detection in the SST39VF3201C-70-4I-EKE-T?
Data# Polling uses DQ7: during program, it outputs complemented data; upon completion, it outputs true data. During erase, DQ7 reads '0' mid-operation and '1' when complete. Toggle Bit uses DQ6 (and DQ2 for suspend detection): it alternates 0/1 during active operations and stops toggling at completion. DQ6 is valid after the sixth WE# pulse for erase; DQ7 requires specific timing windows. Both methods coexist in the SST39VF3201C-70-4I-EKE-T to provide redundancy and flexibility in host firmware design.
SST39VF3201C-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
SST39VF3201C-70-4I-EKE-T FAQ
1.How can I place an order for SST39VF3201C-70-4I-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T reliable?
The price and inventory of SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T is usually 5 days.
3.What payment methods are accepted for SST39VF3201C-70-4I-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201C-70-4I-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201C-70-4I-EKE-T?
SST39VF3201C-70-4I-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T?
For technical support, including SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T requirements.
6.How does Aetrix verify that SST39VF3201C-70-4I-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T meets industry standards.
7.What is the process for return or replacement of SST39VF3201C-70-4I-EKE-T?
All SST39VF3201C-70-4I-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201C-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 SST39VF3201C-70-4I-EKE-T part is unused and in its original packaging.
Return procedure for SST39VF3201C-70-4I-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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