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Microchip Technology SST38VF6404B-70I/TV
- Part No.:
- SST38VF6404B-70I/TV
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6404B-70I/TV.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,572
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Product details
Overview
SST38VF6404B-70I/TV from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, designed for nonvolatile program/data storage in embedded systems requiring fast word-program (7 μs), low-voltage operation (2.7–3.6 V), and hardware boot-block protection. It supports Page Read (25 ns access, 8-word buffer) and features Erase-Suspend/Resume, 128-bit Unique ID, and Security-ID OTP space.
For engineers reviewing the SST38VF6404B-70I/TV datasheet, SST38VF6404B-70I/TV pinout, SST38VF6404B-70I/TV application, or SST38VF6404B-70I/TV equivalent, key selection criteria include its 70 ns standard read timing, TSOP/TBGA package compatibility, uniform 32 KWord block architecture with top-boot configuration, and support for Write-Buffer Programming at 1.75 μs/word - critical for firmware update efficiency in industrial controllers and network edge devices.
Technical Context
The SST38VF6404B-70I/TV implements SuperFlash split-gate cell technology enabling fixed erase/program times independent of cycle count, eliminating software de-rating. Its command-set complies with JEDEC-standard x16 flash pinouts and CFI, supporting standard microprocessor bus interfacing via CE#, OE#, and WE# control.
It integrates dual status detection (DQ6 toggle bit, DQ7 Data# Polling) and RY/BY# output for real-time write completion monitoring, alongside hardware reset (RST#) and write-protect (WP#) for robust system-level data integrity during power transitions or field updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4M × 16 (64 Mbit); enables 16-bit parallel data bus interface with full addressability up to A21. |
| Read Access Time | 70 ns (max); defines minimum clock-to-data delay for synchronous read cycles in legacy 8051/ARM9 bus systems. |
| Page Read Access | 25 ns (typical); allows burst reads of 8 consecutive words from same page, improving firmware fetch throughput. |
| Word-Program Time | 7 μs (typical); reduces per-word programming latency vs. conventional NOR flash, critical for runtime parameter updates. |
| Write-Buffer Capacity | 16-word buffer; enables 1.75 μs/word effective programming rate, cutting full-page write time by >80% vs. single-word mode. |
| Endurance & Retention | 100,000 program/erase cycles / >100 years data retention; ensures long-term reliability in unattended industrial deployments. |
| Supply Voltage | 2.7–3.6 V; compatible with single-supply 3.3 V systems without level-shifting, reducing BOM cost and layout complexity. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package) and 48-ball TFBGA (Thin Fine-Pitch Ball Grid Array), both RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS = A21); selects 4M × 16 locations; A21–A15 define block address for erase operations. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; latched internally during writes; tri-stated when CE# or OE# is high. |
| CE# | Chip Enable | Active-low chip select; device enters standby (5 μA) when high; required low for all read/write operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; high impedance when asserted high or CE# high. |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC timing; initiates command sequences. |
| WP# | Write Protect | Hardware boot-block lock; grounded to protect top 32 KWord boot sector (B127) from accidental erase/program. |
| RST# | Reset | Active-low hardware reset; forces device into Read mode, clearing internal state after power-up or fault recovery. |
| RY/BY# | Ready/Busy | Open-drain status output; low during active program/erase; used for hardware flow control without polling overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Enables interruptible block-erase: suspend to read/program other blocks, then resume - essential for real-time OS firmware updates. |
| Auto Low Power Mode | Reduces active read current from 25 mA to 5 μA after valid access; eliminates need for external power gating in battery-backed systems. |
| Security-ID OTP Space | 248-word user one-time-programmable area; supports secure device binding, license keys, or calibration data storage with irreversible write. |
| Uniform Block Architecture | All blocks are 32 KWord except boot sector (B127 = four 4 KWord sub-blocks); simplifies memory management and wear-leveling algorithms. |
| CFI Compliance | Provides standardized query table at fixed address; enables automatic flash detection and parameter retrieval in bootloader code. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory with 70 ns read access and hardware boot-block protection to ensure safe cold-start execution. Use Value: 100,000-cycle endurance and >100-year data retention guarantee firmware integrity over 15+ year product lifecycles without refresh. |
Use Scenario: Holding calibrated sensor coefficients and regulatory-compliant device configuration profiles in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store using 128-bit Unique ID and 248-word Security-ID OTP for traceability and anti-cloning. Use Value: WP#-enabled boot-block protection prevents unauthorized overwrite of safety-critical startup parameters during field service. |
| Telecom Edge Router Boot Code | Automotive Infotainment System BIOS |
|
Use Scenario: Hosting boot code and fail-safe recovery images in carrier-grade edge routers requiring zero-downtime firmware upgrades. IC Role / Device Role / Timing Role: Dual-mode flash memory supporting both fast Page Read (25 ns) for rapid boot and Write-Buffer Programming (1.75 μs/word) for atomic image swaps. Use Value: Erase-Suspend capability allows background firmware validation while maintaining live packet forwarding - no service interruption during update. |
Use Scenario: Storing infotainment BIOS and HMI assets in automotive head units subject to AEC-Q100 Grade 3 (-40°C to +105°C) requirements. IC Role / Device Role / Timing Role: High-reliability NOR flash with RST#-driven hard reset recovery and 2.7–3.6 V supply tolerance for unstable vehicle battery conditions. Use Value: SuperFlash technology delivers consistent 7 μs word-program time across temperature and lifetime - no performance degradation over 10,000+ thermal cycles. |
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 x16 organization, 70 ns read, but uses uniform 64 KWord block architecture and lacks Erase-Suspend. | Lower-cost option for static firmware storage where background erase interrupts are unnecessary. | Select when boot-block flexibility and suspend/resume are not required; verify WP# pin behavior matches B127 protection scheme. |
| MX29LV640ETTI-70G | 64 Mbit x16, 70 ns read, but requires 3.0–3.6 V only (no 2.7 V support) and has slower 10 μs word-program time. | Suitable for 3.3 V-only designs with less aggressive update timing constraints. | Choose if system operates strictly at 3.3 V and does not require sub-3.0 V brownout operation or <7 μs programming. |
Compared with SST38VF6404B-70I/TV, SST39VF6401B-70-4C-EKE offers lower cost but sacrifices Erase-Suspend and boot-block granularity, while MX29LV640ETTI-70G trades wider voltage range and faster programming for stricter supply compliance - making SST38VF6404B-70I/TV optimal for mixed-voltage, real-time update scenarios.
Availability
SST38VF6404B-70I/TV is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, telecom edge router boot code, and automotive infotainment BIOS requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SST38VF6404B-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 design centers and manufacturing facilities across Asia, Europe, and North America.
The SST38VF6404B-70I/TV belongs to Microchip's Advanced MPF+ Flash family, engineered specifically for embedded systems demanding high reliability, low-power operation, and flexible in-system programming - especially in industrial automation and mission-critical edge devices.
FAQ
What is the operating voltage range for the SST38VF6404B-70I/TV?
The SST38VF6404B-70I/TV operates across a single 2.7 V to 3.6 V supply range. This wide voltage window supports direct integration into 3.3 V systems with brownout tolerance down to 2.7 V, eliminating the need for auxiliary voltage regulators or level shifters in battery-powered or automotive applications. The SST38VF6404B-70I/TV maintains full specification compliance - including 70 ns read access and 7 μs word-program - across this entire range.
Does the SST38VF6404B-70I/TV support hardware write protection for the boot sector?
Yes, the SST38VF6404B-70I/TV provides dedicated hardware boot-block protection via the WP# pin. When WP# is grounded, it permanently locks the top 32 KWord boot block (B127), preventing accidental erase or program operations. This protection is independent of software commands and remains active even during power cycling - a critical safeguard for bootloader integrity in SST38VF6404B-70I/TV-based systems.
How does the Page Read feature improve performance in the SST38VF6404B-70I/TV?
The SST38VF6404B-70I/TV's Page Read feature enables reading eight consecutive words from the same memory page in just 25 ns per word - significantly faster than the 70 ns standard read access. This burst capability reduces average instruction fetch latency in microcontroller boot sequences and accelerates firmware image loading. The SST38VF6404B-70I/TV achieves this using an internal 8-word latch, requiring only A2–A0 toggling within a fixed A21–A3 page address.
What status signals does the SST38VF6404B-70I/TV provide to monitor write operations?
The SST38VF6404B-70I/TV provides three concurrent status mechanisms: DQ6 (Toggle Bit), DQ7 (Data# Polling), and the RY/BY# pin. DQ6 toggles during active program/erase and stops when complete; DQ7 complements data until operation finishes; RY/BY# goes low during writes and high when ready. These allow flexible hardware- or software-driven monitoring - the SST38VF6404B-70I/TV supports all three simultaneously for maximum system design flexibility.
Is the SST38VF6404B-70I/TV compatible with JEDEC-standard flash interfaces?
Yes, the SST38VF6404B-70I/TV fully complies with JEDEC Standard JESD21-C for x16 flash pinouts and command sets, and is CFI (Common Flash Interface) compliant. Its address/data/control pin mapping matches industry-standard NOR flash devices, enabling drop-in replacement in existing 16-bit bus designs. The SST38VF6404B-70I/TV also supports standard command sequences for read, program, and erase - verified against JEDEC publication 44.1.
SST38VF6404B-70I/TV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- 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
SST38VF6404B-70I/TV FAQ
1.How can I place an order for SST38VF6404B-70I/TV through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6404B-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 SST38VF6404B-70I/TV reliable?
The price and inventory of SST38VF6404B-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 SST38VF6404B-70I/TV is usually 5 days.
3.What payment methods are accepted for SST38VF6404B-70I/TV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6404B-70I/TV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6404B-70I/TV?
SST38VF6404B-70I/TV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6404B-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 SST38VF6404B-70I/TV?
For technical support, including SST38VF6404B-70I/TV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6404B-70I/TV requirements.
6.How does Aetrix verify that SST38VF6404B-70I/TV is sourced from the original manufacturer or authorized distributors?
All SST38VF6404B-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 SST38VF6404B-70I/TV meets industry standards.
7.What is the process for return or replacement of SST38VF6404B-70I/TV?
All SST38VF6404B-70I/TV units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6404B-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 SST38VF6404B-70I/TV part is unused and in its original packaging.
Return procedure for SST38VF6404B-70I/TV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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