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Microchip Technology SST39VF3201C-70-4I-B3KE-T
- Part No.:
- SST39VF3201C-70-4I-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF3201C-70-4I-B3KE-T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,953
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Product details
Overview
SST39VF3201C-70-4I-B3KE-T from Microchip Technology is a 32-Mbit (2M × 16) CMOS Multi-Purpose Flash Plus (MPF+) memory IC with bottom-block hardware write protection, 70 ns read access time, and single 2.7V–3.6V supply operation. It features uniform 2 KWord sector erase, flexible block architecture (eight 4-KWord + sixty-three 32-KWord blocks), and integrated RY/BY# status pin for embedded boot code storage in industrial controllers.
For engineers reviewing the SST39VF3201C-70-4I-B3KE-T datasheet, SST39VF3201C-70-4I-B3KE-T pinout, SST39VF3201C-70-4I-B3KE-T application, or SST39VF3201C-70-4I-B3KE-T equivalent, key selection criteria include bottom-boot block address range (000000H–001FFFH), WP#-controlled hardware protection of bottom two 4-KWord blocks, Auto-Low-Power mode (4 µA standby), and JEDEC-standard x16 parallel interface compatibility.
Technical Context
This device implements SuperFlash® split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count-unlike conventional flash-and eliminating software derating over lifetime. Its command-set architecture requires six-byte sequences for sector/block/chip erase and three-byte sequences for word program, all validated via DQ6 toggle bit or DQ7 data polling.
The SST39VF3201C-70-4I-B3KE-T supports Erase-Suspend/Erase-Resume (B0H/30H commands), Security ID (128-bit factory + 128-word user space), and CFI Query mode (98H at 555H) for runtime identification. Hardware reset (RST#) forces immediate return to read mode, and WP# pin enables physical bottom-block lock without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2M × 16 (32 Mbit); supports 16-bit parallel bus interface with latched address/data |
| Read Access Time | 70 ns; enables direct execution from flash (XIP) in microcontroller boot loaders |
| Supply Voltage | 2.7V–3.6V; compatible with 3.3V logic systems without level shifting |
| Endurance | 100,000 program/erase cycles; sufficient for field firmware updates over 10+ years |
| Data Retention | >100 years; ensures long-term reliability in unpowered storage applications |
| Block Protection | Bottom two 4-KWord blocks (000000H–001FFFH); enabled when WP# = low |
| Standby Current | 4 µA typical; reduces power in sleep-mode industrial gateways |
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 | AMS = A20; A11–A20 select sector during erase; A15–A20 select block |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; tri-state when CE# or OE# high; latched on write |
| WE#, CE#, OE# | Control Inputs | Standard x16 asynchronous interface timing; no external wait states required |
| WP# | Write-Protect Input | Hardware lock for bottom boot blocks; floating = internally pulled high (unprotected) |
| RST# | Reset Input | Hardware abort of ongoing erase/program; returns device to read mode within TRP |
| RY/BY# | Open-Drain Status Output | Active-low busy signal; requires 10 kΩ–100 kΩ pull-up; shared across multiple devices |
| VDD, VSS | Power/Ground | Single 2.7V–3.6V supply; decoupling mandatory per JEDEC layout guidelines |
| NC | No Connection | Unbonded pins (TSOP positions 3, 25); must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows real-time read/program from non-suspended sectors during active erase-critical for multitasking boot firmware |
| Auto-Low-Power Mode | Reduces active read current to 4 µA after valid access-eliminates need for external power gating in battery-backed systems |
| Security ID Space | 128-bit factory-programmed ID + 128-word user-programmable space-enables secure device authentication and calibration storage |
| Fixed Timing Architecture | 7 µs word-program and 18 ms sector/block erase times invariant across lifetime-removes dynamic timing margining in system firmware |
| CFI Query Support | Standardized runtime identification (QRY string at 10H–12H) enables generic flash drivers across multiple vendors |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Loader |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in harsh EMI environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; executes XIP with 70 ns latency. Use Value: Bottom-block hardware protection prevents accidental overwrite of critical startup routines during field updates. | Use Scenario: Holding certified bootloader and safety-critical diagnostic code in FDA-regulated infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for signed firmware images verified at power-on reset. Use Value: Factory-programmed 128-bit Security ID enables cryptographic binding between hardware and firmware signature. |
| Automotive Body Control Module | Network Router Configuration Memory |
Use Scenario: Retaining calibrated sensor offsets and CAN message routing tables across vehicle ignition cycles. IC Role / Device Role / Timing Role: Low-power configuration store accessed only during initialization; leverages 4 µA standby current. Use Value: >100-year data retention ensures calibration integrity over full vehicle lifetime without backup battery. | Use Scenario: Storing VLAN mapping rules and QoS policies in enterprise-grade Ethernet switches. IC Role / Device Role / Timing Role: Parallel-interface flash supporting fast reconfiguration during failover events. Use Value: Sector-erase capability (18 ms) enables atomic policy updates without disrupting active packet forwarding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3202C-70-4I-B3KE-T | Top-block hardware protection (1FE000H–1FFFFFH) instead of bottom-block; identical timing, voltage, and command set | Used where boot code resides in top memory region; not interchangeable without PCB address decode changes | Select only if top-boot architecture matches system memory map |
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, but uses different command set (no CFI support) and lacks Security ID; 3.0V–3.6V only | Requires custom driver adaptation; no hardware block protection granularity-only full-chip or sector-level lock | Choose when legacy driver reuse outweighs security and flexibility requirements |
Compared with SST39VF3202C-70-4I-B3KE-T, the SST39VF3201C-70-4I-B3KE-T provides bottom-boot protection essential for legacy BIOS-style boot flows; versus MX29LV320ETTI-70G, it delivers superior data integrity via Security ID and deterministic erase timing-critical for medical and industrial certifications.
Availability
SST39VF3201C-70-4I-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot loaders, automotive body control modules, and network router configuration memory requiring stable component supply across extended product lifecycles.
Supply support for SST39VF3201C-70-4I-B3KE-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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global manufacturing and support infrastructure.
The SST39VF3201C-70-4I-B3KE-T belongs to Microchip's Multi-Purpose Flash Plus (MPF+) family, designed specifically for reliable, low-power, and secure code and configuration storage in mission-critical embedded systems.
FAQ
What is the boot block protection scheme implemented in the SST39VF3201C-70-4I-B3KE-T?
The SST39VF3201C-70-4I-B3KE-T implements bottom-block hardware protection: when WP# is driven low, the bottom two 4-KWord blocks (000000H–001FFFH) are locked against program and erase operations. This protects boot code stored at the lowest memory addresses. The SST39VF3201C-70-4I-B3KE-T does not support top-block protection-only the SST39VF3202C variant does.
Does the SST39VF3201C-70-4I-B3KE-T support Common Flash Interface (CFI) queries?
Yes, the SST39VF3201C-70-4I-B3KE-T supports CFI Query mode via the 98H command at address 555H (or 55H/98H one-byte entry). It returns standardized identification strings including "QRY" at 10H–12H and primary command set info at 13H–16H. This enables generic flash drivers to auto-detect geometry and timing-reducing integration effort for the SST39VF3201C-70-4I-B3KE-T.
How does the Auto-Low-Power mode function in the SST39VF3201C-70-4I-B3KE-T?
The SST39VF3201C-70-4I-B3KE-T enters Auto-Low-Power mode automatically after a valid read cycle completes, reducing active current from ~9 mA to 4 µA. It exits instantly on any address or control signal transition-no access penalty. This mode is disabled if CE# remains low continuously after power-up; the first address change triggers entry. It significantly lowers average power in burst-read applications like the SST39VF3201C-70-4I-B3KE-T.
What is the purpose and structure of the Security ID feature in the SST39VF3201C-70-4I-B3KE-T?
The SST39VF3201C-70-4I-B3KE-T includes a 136-word Security ID space: 128 bits factory-programmed by Microchip (read-only) and 128 words user-programmable. User space is written via A5H command and locked permanently with 85H. Neither segment can be erased. This enables hardware-rooted device identity binding-essential for firmware validation in the SST39VF3201C-70-4I-B3KE-T.
Can the SST39VF3201C-70-4I-B3KE-T be used as a direct replacement for the SST39VF3202C-70-4I-B3KE-T?
No-the SST39VF3201C-70-4I-B3KE-T and SST39VF3202C-70-4I-B3KE-T are not pin-compatible replacements due to differing boot block protection schemes: SST39VF3201C-70-4I-B3KE-T protects bottom blocks (000000H–001FFFH), while SST39VF3202C-70-4I-B3KE-T protects top blocks (1FE000H–1FFFFFH). Swapping them risks corrupting protected firmware unless address decoding logic is revised for the SST39VF3201C-70-4I-B3KE-T.
SST39VF3201C-70-4I-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- 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-TFBGA (6x8)
SST39VF3201C-70-4I-B3KE-T FAQ
1.How can I place an order for SST39VF3201C-70-4I-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201C-70-4I-B3KE-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-B3KE-T reliable?
The price and inventory of SST39VF3201C-70-4I-B3KE-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-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39VF3201C-70-4I-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201C-70-4I-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201C-70-4I-B3KE-T?
SST39VF3201C-70-4I-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201C-70-4I-B3KE-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-B3KE-T?
For technical support, including SST39VF3201C-70-4I-B3KE-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-B3KE-T requirements.
6.How does Aetrix verify that SST39VF3201C-70-4I-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF3201C-70-4I-B3KE-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-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39VF3201C-70-4I-B3KE-T?
All SST39VF3201C-70-4I-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201C-70-4I-B3KE-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-B3KE-T part is unused and in its original packaging.
Return procedure for SST39VF3201C-70-4I-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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