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Microchip Technology SST39VF3201-70-4C-B3KE-T
- Part No.:
- SST39VF3201-70-4C-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF3201-70-4C-B3KE-T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SST39VF3201-70-4C-B3KE-T from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus (MPF+) memory IC, organized as 2M words × 16-bit, operating from 2.7–3.6V. It delivers 70 ns read access time, supports sector/block/chip erase, and features hardware block protection on the bottom 32 KWord boot block - used in embedded firmware storage for industrial controllers and legacy communication modules.
For engineers reviewing the SST39VF3201-70-4C-B3KE-T datasheet, SST39VF3201-70-4C-B3KE-T pinout, SST39VF3201-70-4C-B3KE-T application, or SST39VF3201-70-4C-B3KE-T equivalent, key selection considerations include its TSOP-48 package, JEDEC-standard x16 asynchronous interface, bottom-boot hardware write protection, 100,000-cycle endurance, and compatibility with legacy 16-bit parallel bus microcontrollers requiring nonvolatile program storage.
Technical Context
The SST39VF3201-70-4C-B3KE-T implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. It uses standard JEDEC-compliant command sets (e.g., 6-byte chip-erase sequence at 5555H/10H) and supports both Data# Polling (DQ7) and Toggle Bit (DQ6/DQ2) for write status detection.
Its architecture includes latched address/data buses, hardware reset (RST#), write protect (WP#) for bottom boot block protection, and CFI query capability. The device operates in Read, Word-Program, Sector-Erase (2 KWord), Block-Erase (32 KWord), and Chip-Erase modes - all initiated via CE#/WE# controlled command sequences without external VPP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2M × 16), supporting 4 MB of 16-bit data storage |
| Read Access Time | 70 ns - enables direct interfacing with 14 MHz+ 16-bit microcontrollers without wait states |
| Supply Voltage | 2.7–3.6V - compatible with single-supply 3.3V systems and tolerant of brown-out conditions |
| Endurance | 100,000 program/erase cycles - sufficient for field firmware updates over 10+ years in industrial deployments |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications |
| Erase Granularity | Uniform 2 KWord sectors and 32 KWord blocks - allows fine-grained firmware patching and full-image recovery |
| Write Protection | Hardware bottom-block protection (000000H–007FFFH) via WP# pin - prevents accidental corruption of boot code |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard JEDEC x16 flash footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 used for 2M×16 addressing; A20 selects top half of 32 Mbit array (SST39VF3201) |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with internal latching and tri-state control via OE#/CE# |
| CE# | Chip Enable | Active-low chip select - must be low to enable read/write operations |
| OE# | Output Enable | Active-low output gate - controls data bus tristate during reads |
| WE# | Write Enable | Active-low write strobe - latches address/data and initiates command sequences |
| WP# | Write Protect | Active-low hardware lock for bottom 32 KWord boot block (000000H–007FFFH) |
| RST# | Reset | Active-low hardware reset - terminates in-progress operations and forces read mode |
| VDD / VSS | Power / Ground | Single 2.7–3.6V supply; dual ground pins for noise reduction in high-speed reads |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell design ensures stable 70 ns read timing and fixed 18 ms erase time across full 100k-cycle lifetime |
| Erase-Suspend/Resume | Allows real-time reading from non-suspended sectors during active erase - critical for fail-safe bootloader operation |
| Security ID Space | 256-bit factory + user programmable ID (128 + 128 bits) - supports device authentication and secure firmware binding |
| Auto Low Power Mode | Reduces active read current from 9 mA to 3 µA after valid access - cuts standby power in battery-backed systems |
| CFI Compliance | JEDEC-standard Common Flash Interface enables automatic driver detection and configuration in BIOS/bootloader stacks |
Applications
| Industrial PLC Firmware Storage | Legacy Telecom Line Card Boot Memory |
|---|---|
Use Scenario: Storing and updating firmware images for programmable logic controllers in factory automation environments with infrequent but mission-critical field upgrades. IC Role / Device Role / Timing Role: Nonvolatile parallel boot memory mapped to 16-bit microcontroller address space; provides deterministic 70 ns read access during cold start. Use Value: Bottom-block hardware protection prevents corruption of boot loader during power-interrupted firmware updates, ensuring system recoverability. | Use Scenario: Holding boot code and configuration parameters for TDM-based line interface cards in carrier-grade DSLAMs and access multiplexers. IC Role / Device Role / Timing Role: x16 asynchronous flash memory interfaced directly to SH-3 or ColdFire processors; supports in-system reprogramming via JTAG-hosted utilities. Use Value: Sector-erase capability enables patch-level updates without full chip reflash, minimizing service downtime during network software rollouts. |
| Medical Diagnostic Equipment BIOS | Avionics Display Module Configuration |
Use Scenario: Storing certified BIOS and calibration tables in Class II medical imaging devices where data integrity and long-term retention are regulated requirements. IC Role / Device Role / Timing Role: Primary boot ROM accessed during power-on self-test; leverages >100-year data retention and 100k-cycle endurance for lifecycle compliance. Use Value: Hardware RST# pin enables deterministic recovery from watchdog timeouts during diagnostic self-tests, meeting IEC 62304 safety constraints. | Use Scenario: Holding display initialization profiles and font assets in ARINC 661-compliant cockpit display units subject to DO-254 hardware assurance levels. IC Role / Device Role / Timing Role: Parallel flash memory mapped to PowerPC 750GX local bus; supports secure field updates via encrypted CFI-aware bootloader. Use Value: Security ID feature allows binding of display firmware to specific hardware units, preventing unauthorized configuration changes in certified avionics systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF3201B-70-4C-B3KE | Same die, updated revision with enhanced ESD robustness and tighter AC timing specs; identical pinout and command set | Preferred for new designs per Microchip notice; supports same industrial temperature range (–40°C to +85°C) | Select when sourcing new production builds - offers improved yield and long-term availability vs. discontinued -70-4C-B3KE-T |
| MX29LV320ETTI-70G | 32 Mbit x16 parallel NOR flash; 70 ns access, but uses different command set (Spansion-style) and lacks Erase-Suspend | Requires firmware driver modification; no hardware bottom-block protection - relies on software locking | Consider only if existing design already uses MX29LV family and board layout permits minor timing adjustments |
Compared with SST39VF3201B-70-4C-B3KE and MX29LV320ETTI-70G, the SST39VF3201-70-4C-B3KE-T provides guaranteed bottom-boot hardware protection and Erase-Suspend functionality out-of-box, making it uniquely suitable for safety-critical bootloader implementations where interruptible erase is mandatory - though it is not recommended for new designs per Microchip's obsolescence notice.
Availability
SST39VF3201-70-4C-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy telecom line card boot memory, and medical diagnostic equipment BIOS requiring stable component supply through extended product lifecycles.
Supply support for SST39VF3201-70-4C-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, acquired Silicon Storage Technology (SST) in 2010.
The SST39VF3201-70-4C-B3KE-T belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring parallel NOR flash with hardware boot protection and deterministic erase performance.
FAQ
What does the "-70-4C-B3KE-T" suffix indicate for SST39VF3201-70-4C-B3KE-T?
The "-70" denotes 70 ns maximum read access time; "4C" specifies commercial temperature range (0°C to +70°C); "B3KE" identifies the 48-pin TSOP package with lead-free (Pb-free) finish and tape-and-reel packaging; and "-T" indicates tape-and-reel shipment format. This full suffix confirms the device is a 32 Mbit, 2M×16, 70 ns, commercial-grade, TSOP-packaged variant of the SST39VF3201-70-4C-B3KE-T.
Is SST39VF3201-70-4C-B3KE-T pin-compatible with SST39VF1601 or SST39VF3202 variants?
No - SST39VF3201-70-4C-B3KE-T is not pin-compatible with SST39VF1601 (16 Mbit) due to differing address depth (A20 required), nor with SST39VF3202 (top-boot variant) because WP# protects opposite memory regions. While all share the same 48-pin TSOP footprint and signal names, the SST39VF3201-70-4C-B3KE-T requires A20 assertion and expects bottom-boot protection behavior, making direct substitution unsafe without firmware and hardware review.
Does SST39VF3201-70-4C-B3KE-T require an external VPP voltage for programming?
No - SST39VF3201-70-4C-B3KE-T uses internal charge pump circuitry to generate required programming voltages. All write operations (Word-Program, Sector-Erase, Block-Erase, Chip-Erase) execute using only the 2.7–3.6V VDD supply. No external VPP pin or voltage source is needed, simplifying board design and reducing BOM count compared to older flash technologies.
How is hardware block protection implemented on SST39VF3201-70-4C-B3KE-T?
SST39VF3201-70-4C-B3KE-T implements bottom-block hardware protection: when WP# is driven low, program and erase operations are disabled for the lowest 32 KWord (000000H–007FFFH), preserving boot code. If WP# is left floating, an internal pull-up holds it high, disabling protection. This behavior is fixed per device variant - SST39VF3201-70-4C-B3KE-T always protects the bottom block, unlike SST39VF3202 which protects the top block.
What status detection methods does SST39VF3201-70-4C-B3KE-T support during write operations?
SST39VF3201-70-4C-B3KE-T supports two hardware-supported status detection methods: Data# Polling (monitoring DQ7 toggling state) and Toggle Bit (monitoring DQ6 toggling). Both are valid after the rising edge of the final WE# pulse in the command sequence. DQ2 provides additional context for erase-suspended sectors. These mechanisms eliminate need for fixed delay loops and enable optimal host CPU utilization during erase/program cycles.
SST39VF3201-70-4C-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA (6x8)
SST39VF3201-70-4C-B3KE-T FAQ
1.How can I place an order for SST39VF3201-70-4C-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201-70-4C-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 SST39VF3201-70-4C-B3KE-T reliable?
The price and inventory of SST39VF3201-70-4C-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 SST39VF3201-70-4C-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39VF3201-70-4C-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201-70-4C-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201-70-4C-B3KE-T?
SST39VF3201-70-4C-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201-70-4C-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 SST39VF3201-70-4C-B3KE-T?
For technical support, including SST39VF3201-70-4C-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201-70-4C-B3KE-T requirements.
6.How does Aetrix verify that SST39VF3201-70-4C-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF3201-70-4C-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 SST39VF3201-70-4C-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39VF3201-70-4C-B3KE-T?
All SST39VF3201-70-4C-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201-70-4C-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 SST39VF3201-70-4C-B3KE-T part is unused and in its original packaging.
Return procedure for SST39VF3201-70-4C-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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