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Microchip Technology SST38VF6402BT-70I/TV
- Part No.:
- SST38VF6402BT-70I/TV
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6402BT-70I/TV.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,945
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Product details
Overview
SST38VF6402BT-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 single-supply 2.7–3.6V operation, 70 ns read access, and hardware boot block protection. It delivers 100,000 write/erase cycles and >100-year data retention, used in firmware update storage for industrial controllers.
For engineers reviewing the SST38VF6402BT-70I/TV datasheet, SST38VF6402BT-70I/TV pinout, SST38VF6402BT-70I/TV application, or SST38VF6402BT-70I/TV equivalent, key selection criteria include boot-block configuration (top-boot), TSOP-48 package compatibility, 16-word write buffer performance, uniform 32 KWord block erase, and JEDEC-standard x16 interface timing compliance.
Technical Context
This device implements SuperFlash split-gate cell technology with thick-oxide tunneling injection, enabling fixed erase/program times independent of cycle count-unlike conventional flash-eliminating system-level de-rating. Its architecture supports latched address/data, RY/BY# status signaling, and hardware reset (RST#) for reliable recovery from power-up or error states.
The SST38VF6402BT-70I/TV uses JEDEC-standard x16 pinouts and command sets, CFI compliance, and dual software/hardware protection: WP#-controlled top-boot block lock, individual 32 KWord block software protection, and password-based security. It supports Page Read (25 ns per word, 8-word buffer) and Write-Buffer Programming (1.75 μs/word typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4M × 16 (64 Mbit); enables 16-bit parallel data bus interfacing with microcontrollers and SoCs. |
| Read Access Time | 70 ns; guarantees deterministic timing for real-time firmware fetch in industrial PLCs and motor drives. |
| Page Read Speed | 25 ns per word (8-word page); reduces instruction fetch latency in boot code execution sequences. |
| Write Buffer Size | 16-word buffer; cuts bulk programming time by ~90% vs. single-word writes in firmware field updates. |
| Endurance & Retention | 100,000 cycles minimum / >100 years; validated for long-life deployment in unattended infrastructure equipment. |
| Supply Voltage | 2.7–3.6 V; compatible with modern 3.3 V logic rails without level-shifting in portable and IoT edge devices. |
| Block Erase Time | 18 ms typical (32 KWord blocks); enables fast partial reconfiguration without full chip erase overhead. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS = A21); selects 4M × 16 locations; A21–A15 define 128 block addresses. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; tri-stated when CE# or OE# high; latched internally during writes. |
| CE# | Chip Enable | Active-low chip select; device enters standby (5 μA) when high; required for all operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; must be low with CE# for valid reads. |
| WE# | Write Enable | Active-low write control; latches address/data edges; initiates command sequences on rising/falling edges. |
| WP# | Write Protect | Active-low hardware lock for top boot block (B127); prevents accidental firmware corruption during power transients. |
| RST# | Hardware Reset | Active-low synchronous reset; forces device into Read mode; critical for safe recovery after brown-out. |
| RY/BY# | Ready/Busy | Open-drain status indicator; low during internal Program/Erase; eliminates polling overhead in host firmware. |
| VDD | Power Supply | +2.7–3.6 V supply; powers core logic and SuperFlash array; decoupling required per JEDEC layout guidelines. |
| VSS | Ground | Reference ground for all I/O and core circuits; requires low-impedance PCB plane connection. |
Key Features
| Feature | Design Value |
|---|---|
| Top-boot block configuration | Boot block B127 (32 KWord) protected via WP# pin-ensures bootloader integrity in fail-safe boot architectures. |
| Erase-suspend/resume capability | Allows real-time read/program of non-erasing blocks during background erase-enables concurrent firmware update and runtime operation. |
| Auto Low Power mode | Reduces active read current from 25 mA to 5 μA after valid access-cuts idle power in battery-backed systems by 5000×. |
| 128-bit Unique ID + Security-ID | Factory-programmed ID and 248-word OTP area enable secure device authentication and license binding in OEM applications. |
| CFI-compliant command set | Standardized JEDEC interface ensures drop-in compatibility with existing flash drivers and BIOS/UEFI firmware stacks. |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile program memory with hardware boot block protection and 70 ns read access for deterministic scan-cycle execution. Use Value: Prevents unauthorized modification of safety-critical control logic via WP#-locked top-boot block and password-protected software protection. |
Use Scenario: Holding certified bootloader code in FDA-regulated diagnostic imaging equipment requiring traceable firmware revision control. IC Role / Device Role / Timing Role: Secure, long-retention storage for immutable bootloader with 128-bit Unique ID for device serialization and audit logging. Use Value: Enables regulatory compliance through irreversible block locking and >100-year data retention-eliminates field recalibration due to bit rot. |
| Telecom Base Station Configuration | Automotive Infotainment Update Cache |
Use Scenario: Storing radio calibration tables and protocol stack parameters in 4G/5G remote radio units operating in wide temperature ranges. IC Role / Device Role / Timing Role: High-reliability configuration memory with uniform 32 KWord block erase and 100,000-cycle endurance for frequent field updates. Use Value: Supports over-the-air (OTA) parameter updates without downtime using fast 18 ms block erase and 1.75 μs/word write-buffer programming. |
Use Scenario: Caching firmware patches prior to installation in automotive head units, where power interruption during update must not corrupt primary image. IC Role / Device Role / Timing Role: Dual-image storage medium with Erase-Suspend capability-allows safe patch validation while main system remains operational. Use Value: Guarantees atomic update success via RY/BY# status signaling and Toggle Bit/DQ7 end-of-write detection-no risk of bricking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402B-70-4C-EKE | Same 4M×16 organization, 70 ns access, TSOP-48, but bottom-boot configuration (B0 protected) and no RST# pin. | Requires PCB-level redesign for boot block location and lacks hardware reset-unsuitable for safety-critical reboot recovery. | Select only if legacy bottom-boot layout exists and RST# is unused in target system. |
| MX29LV640ETTI-70G | 64 Mbit x16, 70 ns, TSOP-48, but uses standard NOR architecture (not SuperFlash); 10,000-cycle endurance, no write buffer. | Lacks 16-word write buffer and erase-suspend-slower field updates and higher risk of corruption during power loss. | Acceptable for cost-sensitive, low-update-frequency applications where 100K-cycle endurance is unnecessary. |
Compared with SST38VF6402BT-70I/TV, the SST39VF6402B-70-4C-EKE omits hardware reset and reverses boot block orientation, while the MX29LV640ETTI-70G trades SuperFlash reliability and speed for lower cost-making SST38VF6402BT-70I/TV optimal for high-integrity, high-update-rate embedded systems.
Availability
SST38VF6402BT-70I/TV is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostic equipment, telecom base stations, and automotive infotainment systems requiring stable component supply across extended product lifecycles.
Supply support for SST38VF6402BT-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 memory solutions, with emphasis on reliability, longevity, and industrial-grade qualification.
The SST38VF6402BT-70I/TV belongs to Microchip's Advanced MPF+ Flash family, engineered for embedded systems demanding high endurance, deterministic timing, and robust data protection in harsh environments.
FAQ
What boot block configuration does the SST38VF6402BT-70I/TV use?
The SST38VF6402BT-70I/TV implements a top-boot configuration, where the highest-addressed 32 KWord block (B127, address A21–A15 = 1111111) is hardware-protected via the WP# pin. This ensures bootloader code integrity in fail-safe startup sequences and differs from bottom-boot variants like SST38VF6401B.
Does the SST38VF6402BT-70I/TV support hardware reset, and how is it implemented?
Yes, the SST38VF6402BT-70I/TV includes an active-low RST# pin that synchronously forces the device into Read mode, clearing any ongoing Program or Erase operation. This hardware reset is essential for safe recovery after brown-out conditions and is distinct from software-only reset methods used in competing flash devices.
How does the Write-Buffer Programming feature improve firmware update efficiency in the SST38VF6402BT-70I/TV?
The SST38VF6402BT-70I/TV's 16-word write buffer reduces effective programming time to 1.75 μs per word-over 4× faster than standard 7 μs word-program operations. This accelerates field firmware updates and minimizes host CPU wait time, especially critical in OTA deployments where power interruption risk must be minimized.
What is the purpose of the RY/BY# pin on the SST38VF6402BT-70I/TV, and how does it differ from software polling?
The RY/BY# pin on the SST38VF6402BT-70I/TV provides hardware-level Ready/Busy status: driven low during internal Program or Erase operations and high when complete. Unlike software polling (DQ7/DQ6), it eliminates CPU overhead and timing uncertainty-enabling deterministic interrupt-driven operation in real-time systems.
Can the SST38VF6402BT-70I/TV be used in automotive applications, and what qualifications support this?
The SST38VF6402BT-70I/TV carries the "I" grade suffix indicating industrial temperature range (–40°C to +85°C) and is RoHS-compliant, making it suitable for under-hood and infotainment applications. While not AEC-Q100 qualified, its 100,000-cycle endurance, >100-year retention, and erase-suspend capability meet functional safety requirements for non-safety-critical automotive subsystems.
SST38VF6402BT-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
SST38VF6402BT-70I/TV FAQ
1.How can I place an order for SST38VF6402BT-70I/TV through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402BT-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 SST38VF6402BT-70I/TV reliable?
The price and inventory of SST38VF6402BT-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 SST38VF6402BT-70I/TV is usually 5 days.
3.What payment methods are accepted for SST38VF6402BT-70I/TV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402BT-70I/TV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402BT-70I/TV?
SST38VF6402BT-70I/TV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402BT-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 SST38VF6402BT-70I/TV?
For technical support, including SST38VF6402BT-70I/TV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402BT-70I/TV requirements.
6.How does Aetrix verify that SST38VF6402BT-70I/TV is sourced from the original manufacturer or authorized distributors?
All SST38VF6402BT-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 SST38VF6402BT-70I/TV meets industry standards.
7.What is the process for return or replacement of SST38VF6402BT-70I/TV?
All SST38VF6402BT-70I/TV units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402BT-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 SST38VF6402BT-70I/TV part is unused and in its original packaging.
Return procedure for SST38VF6402BT-70I/TV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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