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Microchip Technology SST39VF3201B-70-4I-B3KE
- Part No.:
- SST39VF3201B-70-4I-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39VF3201B-70-4I-B3KE.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
SST39VF3201B-70-4I-B3KE from Microchip Technology is a 32 Mbit (2M × 16) CMOS Multi-Purpose Flash Plus memory IC with bottom-block hardware write protection, 70 ns read access time, and single 2.7–3.6V supply operation. It serves as nonvolatile program/data storage in embedded controllers and boot code applications requiring high endurance and long data retention.
For engineers reviewing the SST39VF3201B-70-4I-B3KE datasheet, SST39VF3201B-70-4I-B3KE pinout, SST39VF3201B-70-4I-B3KE application, or SST39VF3201B-70-4I-B3KE equivalent, this page delivers verified pin functions, JEDEC-compliant x16 interface timing, bottom-boot block protection mapping, and direct alternatives for industrial-grade flash replacement.
Technical Context
The SST39VF3201B-70-4I-B3KE implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. It supports JEDEC-standard x16 asynchronous interface with CE#, OE#, and WE# control logic, and uses toggle-bit (DQ6/DQ2) and data-polling (DQ7) for write status detection.
Hardware block protection targets the bottom 32 KWord (000000H–007FFFH), enforced via WP# pin grounding. The device integrates RST# for hardware reset to read mode and supports CFI query, security ID (128-bit factory + 128-word user), and software data protection with six-byte erase command sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (2,097,152 × 16 bits); supports 2M-word addressing for firmware/image storage |
| Read Access Time | 70 ns max; enables direct execution from flash in 5 MHz bus systems without wait states |
| Supply Voltage | 2.7–3.6 V; single-rail compatibility with 3.3 V embedded power domains |
| Endurance | 100,000 program/erase cycles typical; sufficient for field-updatable boot loaders and configuration tables |
| Data Retention | >100 years; validated for long-lifecycle industrial deployments without refresh |
| Block Protection | Bottom 32 KWord (000000H–007FFFH); prevents accidental overwrite of boot code during firmware updates |
| Package | 48-ball TFBGA (6 mm × 8 mm); surface-mount compatible with high-density PCB layouts |
Pinout & Package
48-ball TFBGA package (6 mm × 8 mm, ball pitch 0.8 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | A0–A19 select 2M-word locations; A20 (AMS) used for sector/block address decoding |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional bus; latched internally during writes; tri-state when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; device enters standby (4 µA) when high |
| OE# | Output Enable | Active-low output gate; controls data bus drive during read cycles |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC timing |
| WP# | Write Protect | Grounding protects bottom 32 KWord boot block; floating = internal pull-up = unprotected |
| RST# | Reset | Active-low hardware reset; forces return to read mode within TRP (min 100 ns) |
| VDD | Power Supply | 2.7–3.6 V core supply; powers all logic and SuperFlash array operations |
| VSS | Ground | Reference for all I/O and core circuitry; two dedicated balls for low-noise operation |
| NC | No Connect | Unbonded balls (e.g., A1, A16, DQ1, DQ3); no electrical function or routing required |
Key Features
| Feature | Design Value |
|---|---|
| Erase-suspend/resume | Enables real-time read access during active sector/block erase-critical for interrupt-driven firmware updates |
| Auto Low Power Mode | Reduces active read current from 6 mA to 4 µA after valid access; eliminates need for external power gating |
| Security ID space | Factory-programmed 128-bit ID + 128-word user space; supports secure boot authentication and device binding |
| Uniform sector/block architecture | 1024 × 2 KWord sectors and 64 × 32 KWord blocks; simplifies wear leveling and partition management in host firmware |
| Internal VPP generation | Eliminates external high-voltage charge pump; reduces BOM count and layout complexity for 3.3 V systems |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing immediate code execution on power-up with guaranteed 100-year data retention. Use Value: Bottom-block protection prevents corruption of startup routines during field firmware upgrades over CAN or Ethernet. |
Use Scenario: Holding certified boot loader and safety-critical initialization code in FDA-regulated diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for cryptographic keys and signed firmware signatures using Security ID space. Use Value: Hardware reset (RST#) ensures deterministic recovery from brown-out conditions without firmware intervention. |
| Automotive Infotainment Head Unit | Network Router Configuration |
Use Scenario: Hosting OS kernel, UI assets, and OTA update staging area in automotive infotainment systems with -40°C to +85°C operation. IC Role / Device Role / Timing Role: High-reliability flash memory supporting concurrent read-while-erase via erase-suspend for seamless UI transitions. Use Value: 70 ns access time enables zero-wait-state execution from flash, reducing SoC memory bandwidth pressure. |
Use Scenario: Storing router configuration, MAC tables, and firmware patches in carrier-grade networking gear requiring 24/7 uptime. IC Role / Device Role / Timing Role: Field-upgradable nonvolatile storage with sector-erase granularity for atomic config commits. Use Value: 100,000-cycle endurance exceeds expected lifetime of multi-year deployments with frequent reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV320ETTI-70G | 32 Mbit x16, 70 ns, 2.7–3.6 V, top-boot block protection only | Lacks bottom-boot protection; requires firmware adaptation to relocate protected boot sector | Select when top-boot architecture aligns with existing board layout and boot ROM mapping |
| S29GL032N90TFIR20 | 32 Mbit x16, 90 ns, 2.7–3.6 V, uniform 64 KByte sectors, no hardware WP# pin | Slower access time; relies solely on software protection; no dedicated bottom-block hardware lock | Choose for cost-sensitive designs where 90 ns latency is acceptable and software-only protection suffices |
Compared with MX29LV320ETTI-70G and S29GL032N90TFIR20, the SST39VF3201B-70-4I-B3KE uniquely provides bottom-boot hardware protection without firmware modification, 70 ns timing for tighter system timing budgets, and integrated erase-suspend for real-time read capability during updates.
Availability
SST39VF3201B-70-4I-B3KE is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics, automotive infotainment, and network infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SST39VF3201B-70-4I-B3KE 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 acquired Silicon Storage Technology (SST) in 2010 and now develops and manufactures SuperFlash-based nonvolatile memory products.
The SST39VF3201B-70-4I-B3KE belongs to the Multi-Purpose Flash Plus (MPF+) product line, designed specifically for embedded systems needing reliable, low-power, field-upgradable code and data storage with hardware-level boot protection.
FAQ
What is the exact memory organization of the SST39VF3201B-70-4I-B3KE?
The SST39VF3201B-70-4I-B3KE is organized as 2,097,152 words × 16 bits (32 Mbit total), with uniform 2 KWord sectors (1024 sectors) and 32 KWord blocks (64 blocks). Its bottom 32 KWord block spans address range 000000H–007FFFH and is hardware-protected via the WP# pin. This structure is confirmed in the DS25111A datasheet Section 1 and Table 3.
Does the SST39VF3201B-70-4I-B3KE support simultaneous read and erase operations?
Yes, the SST39VF3201B-70-4I-B3KE supports erase-suspend functionality: issuing the B0H command pauses an ongoing sector or block erase, allowing reads from any non-suspended location within 10 µs. This capability is explicitly documented in Section 5 of the DS25111A datasheet and enables real-time diagnostics during firmware updates without halting system operation.
How does hardware block protection work on the SST39VF3201B-70-4I-B3KE?
Hardware block protection on the SST39VF3201B-70-4I-B3KE locks the bottom 32 KWord (000000H–007FFFH) against program/erase when WP# is grounded. If WP# floats, an internal pull-up disables protection. This behavior is distinct from the SST39VF3202B (top-block protection) and is defined in DS25111A Table 3 and Section 8. The SST39VF3201B-70-4I-B3KE implements this feature natively without firmware overhead.
What is the role of the RST# pin on the SST39VF3201B-70-4I-B3KE?
The RST# pin on the SST39VF3201B-70-4I-B3KE provides hardware-initiated return to read mode: holding RST# low for ≥100 ns (TRP) terminates any in-progress program or erase operation and resets internal state. After RST# goes high, a minimum TRHR delay (≥50 ns) is required before valid reads. This ensures deterministic recovery from power faults, as specified in DS25111A Section 9 and Figure 17.
Can the SST39VF3201B-70-4I-B3KE be used in industrial temperature applications?
Yes, the SST39VF3201B-70-4I-B3KE is rated for -40°C to +85°C operation (Industrial grade), with guaranteed 2.7–3.6 V supply performance, 70 ns access time, and 100,000-cycle endurance across this full range. This is confirmed in DS25111A Table 10 and applies to the -4I suffix variant. Its TFBGA package also meets IPC/JEDEC standards for thermal cycling reliability in harsh environments.
SST39VF3201B-70-4I-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- 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
SST39VF3201B-70-4I-B3KE FAQ
1.How can I place an order for SST39VF3201B-70-4I-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF3201B-70-4I-B3KE 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 SST39VF3201B-70-4I-B3KE reliable?
The price and inventory of SST39VF3201B-70-4I-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF3201B-70-4I-B3KE is usually 5 days.
3.What payment methods are accepted for SST39VF3201B-70-4I-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF3201B-70-4I-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF3201B-70-4I-B3KE?
SST39VF3201B-70-4I-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF3201B-70-4I-B3KE 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 SST39VF3201B-70-4I-B3KE?
For technical support, including SST39VF3201B-70-4I-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF3201B-70-4I-B3KE requirements.
6.How does Aetrix verify that SST39VF3201B-70-4I-B3KE is sourced from the original manufacturer or authorized distributors?
All SST39VF3201B-70-4I-B3KE 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 SST39VF3201B-70-4I-B3KE meets industry standards.
7.What is the process for return or replacement of SST39VF3201B-70-4I-B3KE?
All SST39VF3201B-70-4I-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF3201B-70-4I-B3KE, 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 SST39VF3201B-70-4I-B3KE part is unused and in its original packaging.
Return procedure for SST39VF3201B-70-4I-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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