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Microchip Technology SST38VF6401BT-70I/TV
- Part No.:
- SST38VF6401BT-70I/TV
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6401BT-70I/TV.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,322
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Product details
Overview
SST38VF6401BT-70I/TV from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC designed for nonvolatile program, configuration, and data storage in embedded systems. It operates from a single 2.7–3.6V supply, delivers 70 ns read access time, supports 100,000 erase/write cycles, and retains data for >100 years. It is used in industrial controllers requiring field-upgradable firmware with hardware boot block protection.
For engineers reviewing the SST38VF6401BT-70I/TV datasheet, SST38VF6401BT-70I/TV pinout, SST38VF6401BT-70I/TV application, or SST38VF6401BT-70I/TV equivalent, key selection criteria include its TSOP-48 package, 70 ns read timing, uniform 32 KWord block architecture, hardware WP#-based boot protection, and support for Page Read (25 ns), Write-Buffer Programming (1.75 μs/word), and Erase-Suspend/Resume.
Technical Context
The SST38VF6401BT-70I/TV implements Microchip's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. It uses JEDEC-standard x16 flash command sets and CFI compliance for interoperability with standard memory controllers.
Its architecture features latched address/data buses, RY/BY# status signaling, Toggle Bit (DQ6/DQ2) and Data# Polling (DQ7) for write completion detection, and hardware reset (RST#) for recovery from invalid states. Block protection is implemented via WP# pin, volatile/non-volatile block locking, and software password control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 70 ns maximum - defines minimum clock-to-data latency in synchronous bus interfaces |
| Page Read Time | 25 ns per word - enables burst reads of up to eight words from same page with reduced average latency |
| Word-Program Time | 7 μs typical - determines minimum interval between successive word writes in standard programming mode |
| Write-Buffer Capacity | 16-word buffer - allows grouping of writes to reduce total programming time by ~85% vs. single-word mode |
| Endurance & Retention | 100,000 cycles minimum / >100 years retention - ensures long-term reliability in infrequently updated applications |
| Supply Voltage | 2.7–3.6V single supply - compatible with 3.3V logic domains without level shifting |
| Standby Current | 5 μA typical - supports ultra-low-power sleep modes in battery-backed or energy-constrained systems |
Pinout & Package
Package: 48-lead Thin Small Outline Package (TSOP-I, Type I), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; AMS = A21 selects most significant block |
| DQ0–DQ15 | Data Input/Output | 16-bit bidirectional data bus with tri-state outputs controlled by CE# and OE# |
| CE# | Chip Enable | Active-low chip select; device enters standby when high, reducing current to 5 μA |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state |
| WE# | Write Enable | Active-low control for latching addresses/data during program/erase command sequences |
| WP# | Write Protect | Hardware boot block lock: grounded to prevent accidental erase/program of top/bottom boot sectors |
| RST# | Reset | Active-low hardware reset that forces return to Read mode, clearing pending operations |
| RY/BY# | Ready/Busy | Open-drain status indicator: low during active program/erase, high when ready for next command |
| VDD | Power Supply | 2.7–3.6V core supply; powers all logic and memory array functions |
| VSS | Ground | Reference ground for all I/O and internal circuitry; two dedicated pins for noise reduction |
| NC | No Connection | Unbonded pin; must remain unconnected on PCB to avoid signal integrity issues |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Enables real-time read/program of non-erasing blocks during background erase, critical for deterministic interrupt response |
| 128-bit Unique ID | Factory-programmed serial number enabling secure device authentication and firmware binding in production systems |
| Security-ID OTP Area | 248-word one-time-programmable region for storing cryptographic keys or calibration data with irreversible write lock |
| Auto Low Power Mode | Automatically transitions to 5 μA standby after valid read access, eliminating need for external power management logic |
| Uniform 32 KWord Blocks | All 128 blocks sized identically - simplifies memory management firmware and eliminates variable-block handling complexity |
| CFI Compliance | Standardized query structure allows automatic detection and configuration by BIOS/bootloader without hard-coded parameters |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware boot block protection to ensure safe fallback execution after failed updates. Use Value: 70 ns read access enables fast instruction fetch; 100,000-cycle endurance supports decades of field updates without replacement. |
Use Scenario: Holding calibrated sensor coefficients and regulatory-compliant device settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure configuration store with 128-bit Unique ID and OTP Security-ID for traceability and anti-cloning. Use Value: >100-year data retention guarantees parameter integrity across product lifetime; password protection prevents unauthorized reconfiguration. |
| Telecom Base Station Boot ROM | Automotive Infotainment System Flash |
|
Use Scenario: Hosting bootloader and FPGA bitstreams in outdoor telecom infrastructure requiring wide temperature operation (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary boot memory with RST#-driven recovery and Erase-Suspend capability to maintain system responsiveness during firmware patching. Use Value: TSOP-48 package supports high-density PCB layouts; 2.7–3.6V operation matches telecom power rails without regulation overhead. |
Use Scenario: Storing UI assets, navigation maps, and ECU communication stacks in automotive head units subject to AEC-Q100 stress requirements. IC Role / Device Role / Timing Role: High-reliability program memory with hardware WP# lock on boot sector to prevent corruption during vehicle battery transients. Use Value: Uniform 32 KWord blocks simplify OTA update partitioning; Write-Buffer Programming reduces update time by >80% versus legacy flash. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-4C-EKE | Same 64 Mbit density and TSOP-48 package, but rated for commercial temperature (0°C to +70°C) and lacks RST# pin | Not suitable for industrial or automotive environments requiring -40°C operation or hardware reset recovery | Select only for cost-sensitive consumer applications where extended temperature and reset functionality are unnecessary |
| MX29LV640ETTI-70G | 64 Mbit x16 NOR flash with 70 ns access, but uses different command set (non-CFI), no Erase-Suspend, and no 128-bit ID | Requires custom driver development; incompatible with CFI-aware bootloaders and lacks field-upgrade security features | Choose only when legacy system compatibility mandates Macronix command protocol and security features are not required |
Compared with SST38VF6401BT-70I/TV, the SST39VF6401B-70-4C-EKE omits industrial temperature range and RST#, while the MX29LV640ETTI-70G sacrifices CFI compliance and advanced protection features - making SST38VF6401BT-70I/TV the only option supporting full industrial reliability, standardized detection, and secure field updates in a single package.
Availability
SST38VF6401BT-70I/TV is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, telecom base stations, and automotive infotainment systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SST38VF6401BT-70I/TV 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 nonvolatile memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The SST38VF6401BT-70I/TV belongs to Microchip's Advanced MPF+ Flash family, engineered for high-endurance, low-power, and secure firmware storage in mission-critical industrial and automotive applications.
FAQ
What is the operating temperature range of the SST38VF6401BT-70I/TV?
The SST38VF6401BT-70I/TV is specified for industrial temperature operation from –40°C to +85°C, as indicated by the "I" suffix in the part number. This makes it suitable for deployment in harsh environments such as factory floors, outdoor telecom cabinets, and under-hood automotive applications where thermal stability is critical. The "T" denotes TSOP packaging, and "/TV" confirms lead-free RoHS compliance.
Does the SST38VF6401BT-70I/TV support hardware reset, and how is it implemented?
Yes, the SST38VF6401BT-70I/TV includes an active-low hardware reset pin (RST#) that forces the device into Read mode and clears any pending program or erase operations. Asserting RST# low for ≥20 ns returns the flash to a known operational state, which is essential for recovering from corrupted command sequences or power-related faults. This feature is explicitly documented in Table 2-1 of the DS20005002D datasheet.
How does the Write-Buffer Programming feature improve performance in the SST38VF6401BT-70I/TV?
The SST38VF6401BT-70I/TV supports a 16-word Write Buffer that reduces effective programming time to 1.75 μs per word - over 4× faster than standard 7 μs word-program mode. By loading multiple words before committing to flash, it minimizes command overhead and bus arbitration delays. This is especially valuable during firmware updates or configuration writes where throughput directly impacts system downtime.
What boot block protection options are available on the SST38VF6401BT-70I/TV?
The SST38VF6401BT-70I/TV provides hardware boot block protection via the WP# pin, which locks the top or bottom 32 KWord boot sector when grounded. It also supports software-controlled individual block protection, volatile/non-volatile block locking, and password-based write inhibition - all documented in the "Protection and Security Features" section of the datasheet. These mechanisms prevent accidental overwrite of critical startup code.
Is the SST38VF6401BT-70I/TV CFI-compliant, and why does that matter?
Yes, the SST38VF6401BT-70I/TV is fully CFI (Common Flash Interface) compliant, meaning it exposes a standardized query table at fixed address offsets that allows host systems to auto-detect device geometry, timing parameters, and command sets. This eliminates hardcoded flash drivers and enables plug-and-play compatibility with UEFI, Linux MTD, and other standardized firmware environments - a key advantage over proprietary flash protocols.
SST38VF6401BT-70I/TV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- 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:
- 64Mbit
- Memory Organization:
- 4M 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
SST38VF6401BT-70I/TV FAQ
1.How can I place an order for SST38VF6401BT-70I/TV through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6401BT-70I/TV 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 SST38VF6401BT-70I/TV reliable?
The price and inventory of SST38VF6401BT-70I/TV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6401BT-70I/TV is usually 5 days.
3.What payment methods are accepted for SST38VF6401BT-70I/TV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6401BT-70I/TV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6401BT-70I/TV?
SST38VF6401BT-70I/TV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6401BT-70I/TV 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 SST38VF6401BT-70I/TV?
For technical support, including SST38VF6401BT-70I/TV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6401BT-70I/TV requirements.
6.How does Aetrix verify that SST38VF6401BT-70I/TV is sourced from the original manufacturer or authorized distributors?
All SST38VF6401BT-70I/TV 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 SST38VF6401BT-70I/TV meets industry standards.
7.What is the process for return or replacement of SST38VF6401BT-70I/TV?
All SST38VF6401BT-70I/TV units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6401BT-70I/TV, 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 SST38VF6401BT-70I/TV part is unused and in its original packaging.
Return procedure for SST38VF6401BT-70I/TV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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