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Microchip Technology SST38VF6404B-70-5I-EKE
- Part No.:
- SST38VF6404B-70-5I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6404B-70-5I-EKE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,567
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Product details
Overview
SST38VF6404B-70-5I-EKE from Microchip Technology is a 64 Mbit (4M × 16) Advanced Multi-Purpose Flash Plus memory IC designed for embedded code and data storage in industrial and communications systems. It operates from a single 2.7–3.6 V supply, delivers 70 ns read access time, supports 16-word write buffering, and features hardware boot block protection with WP# pin control.
For engineers reviewing the SST38VF6404B-70-5I-EKE datasheet, SST38VF6404B-70-5I-EKE pinout, SST38VF6404B-70-5I-EKE application, or SST38VF6404B-70-5I-EKE equivalent, this device is selected for its fast page-read capability (25 ns), 100,000-cycle endurance, 128-bit unique ID, erase-suspend/resume support, and JEDEC-compliant x16 interface in TSOP/TBGA packages.
Technical Context
The SST38VF6404B-70-5I-EKE implements SuperFlash technology with split-gate cells and thick-oxide tunneling injectors to achieve high reliability and fixed erase/program timing independent of cycle count. Its command-set architecture uses standard microprocessor write sequences with CE#/WE#/OE# control and supports both word-program and write-buffer programming modes.
It features dual status detection (DQ6 toggle bit and DQ7 data# polling), RY/BY# output for hardware-ready signaling, and flexible protection schemes including volatile/non-volatile block locking and WP#-controlled boot-block protection. Memory organization includes 128 uniform 32 KWord blocks plus non-uniform 4 KWord sub-blocks in the top boot region (B127–B134).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), enabling 8 MB of x16 parallel flash storage for firmware or configuration data |
| Read Access Time | 70 ns max - defines minimum bus cycle time for random read operations in legacy parallel interfaces |
| Page Read Time | 25 ns per word (8-word page) - accelerates sequential instruction fetch or table lookup in boot code execution |
| Word-Program Time | 7 µs typical - sets worst-case latency for single-word field updates without buffer overhead |
| Write Buffer Size | 16-word buffer - reduces effective programming time to 1.75 µs/word when loading contiguous data |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - qualifies for long-life industrial deployments |
| Supply Voltage | 2.7–3.6 V single supply - compatible with 3.3 V logic domains and eliminates need for auxiliary voltage rails |
Pinout & Package
Package: 48-ball TFBGA (10 mm × 11 mm, 0.8 mm pitch) and 48-lead TSOP (12 mm × 20 mm). Both RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A21–A0 | Address Inputs | 22-bit address bus (A21 MSB) selects 4M words; A21–A15 define block address for erase commands |
| DQ15–DQ0 | Data I/O (x16) | 16-bit bidirectional data bus with internal latching; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; must be low to enable read/write; controls address/data latch timing edges |
| OE# | Output Enable | Active-low output gate; enables data drivers only when CE# and OE# both low |
| WE# | Write Enable | Active-low write strobe; latches address on falling edge, data on rising edge for command sequencing |
| WP# | Write Protect | Hardware boot-block lock: grounded to protect top 4 KWord boot region (B127–B134) from accidental erase/program |
| RY/BY# | Ready/Busy Output | Open-drain active-low signal indicating active program/erase; used for hardware flow control |
| RST# | Reset Input | Active-low hardware reset that forces device into read mode; required after power-up or error recovery |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows interruption of block erase to perform reads or writes elsewhere - critical for real-time firmware updates |
| 128-bit Unique ID | Factory-programmed serial number enabling secure device authentication and traceability in production |
| Security-ID OTP Area | 248-word one-time-programmable space for keys or calibration data - isolated from main array and write-protected |
| Auto Low Power Mode | Reduces active read current from 25 mA to 5 µA after valid access - cuts standby power in always-on systems |
| CFI Compliance | Supports Common Flash Interface standard - enables plug-and-play integration with generic flash drivers and BIOS |
Applications
| Industrial HMI Firmware Storage | Telecom Baseband Configuration |
|---|---|
|
Use Scenario: Storing boot code, GUI assets, and parameter tables in panel-mounted HMIs operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with fast 70 ns random read and 25 ns page read for rapid UI rendering. Use Value: 100,000-cycle endurance ensures reliable field updates over 10+ years; WP# pin prevents corruption during brown-out events. |
Use Scenario: Holding FPGA configuration bitstreams and DSP coefficient tables in wireless infrastructure equipment. IC Role / Device Role / Timing Role: Parallel x16 interface provides bandwidth-matched loading for multi-MHz clock domains. Use Value: Write-buffer programming (1.75 µs/word) accelerates field reconfiguration; CFI compliance simplifies driver porting across platforms. |
| Medical Diagnostic Boot Memory | Automotive Telematics Log Storage |
|
Use Scenario: Secure boot image storage in FDA-class II devices requiring tamper-resistant firmware integrity. IC Role / Device Role / Timing Role: Security-ID OTP area stores cryptographic keys; 128-bit UID enables device-specific certificate binding. Use Value: Hardware RST# and WP# provide deterministic recovery and protection against ESD-induced corruption during power cycling. |
Use Scenario: Recording CAN bus diagnostic logs and GPS metadata in telematics control units with limited DRAM. IC Role / Device Role / Timing Role: Block-erase suspend/resume allows concurrent logging and firmware validation without data loss. Use Value: 4 KWord boot sub-blocks (B127–B134) isolate critical startup code from field-updatable log partitions - enhancing ASIL-B compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-5I-EKE | Uniform 32 KWord block architecture (no 4 KWord boot sub-blocks); lacks B127–B134 non-uniform layout | Better suited for full-array firmware updates; not optimized for mixed boot/data partitioning | Select when boot block granularity is unnecessary and maximum compatibility with legacy SST39 designs is required |
| MX29LV640ETTI-70G | 70 ns access, 64 Mbit x16, but uses different command set (Spansion-style); no RY/BY# pin; no write-buffer mode | Requires modified driver software; lacks suspend/resume and auto-low-power features | Choose only if existing design already uses MX29LV family and board layout cannot accommodate new pinout or timing behavior |
Compared with SST38VF6404B-70-5I-EKE, SST39VF6401B offers simpler uniform erase but forfeits boot-region flexibility, while MX29LV640ETTI-70G sacrifices advanced features for legacy driver reuse - making SST38VF6404B-70-5I-EKE optimal for new designs needing robust partitioned protection and low-power operation.
Availability
SST38VF6404B-70-5I-EKE is available at Aetrix Electronics and suitable for industrial HMI firmware storage, telecom baseband configuration, medical diagnostic boot memory, and automotive telematics log storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SST38VF6404B-70-5I-EKE 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 delivering smart, connected, and secure embedded control solutions, with leadership in flash memory, microcontrollers, and analog products.
The SST38VF6404B-70-5I-EKE belongs to Microchip's Advanced MPF+ Flash family, engineered for high-reliability embedded systems requiring fast, low-power, and secure parallel NOR flash with flexible memory protection and field-upgrade capability.
FAQ
What is the primary memory organization of the SST38VF6404B-70-5I-EKE?
The SST38VF6404B-70-5I-EKE is organized as 4M × 16 (64 Mbit), with 128 uniform 32 KWord blocks and a non-uniform top boot region comprising eight 4 KWord sub-blocks (B127–B134). This layout enables fine-grained protection of critical boot code while preserving large contiguous areas for application firmware - a key distinction from uniform-block alternatives like SST39VF6401B. The SST38VF6404B-70-5I-EKE uses A21–A15 for block addressing during erase operations.
How does the WP# pin function on the SST38VF6404B-70-5I-EKE?
On the SST38VF6404B-70-5I-EKE, the WP# pin is an active-low hardware write-protect input that, when grounded, locks the top boot region (blocks B127–B134, totaling 32 KWord) against program and erase commands. This prevents accidental corruption during power transients or software faults. Unlike software-based protection, WP# operates independently of internal state and remains effective even if the device is in reset or standby mode. The SST38VF6404B-70-5I-EKE requires WP# to be statically held high or low during all command sequences.
Does the SST38VF6404B-70-5I-EKE support erase-suspend functionality?
Yes, the SST38VF6404B-70-5I-EKE fully supports Erase-Suspend and Erase-Resume commands (B0H and 30H). This allows a block-erase operation to be temporarily halted so the host can read or program other unprotected blocks - essential for real-time systems performing background updates. After issuing Erase-Suspend, the device enters read mode within 20 µs, and DQ2 toggling indicates the suspended state. The SST38VF6404B-70-5I-EKE requires ≥200 µs hold time after Erase-Resume before issuing another suspend command.
What is the purpose of the 128-bit Unique ID in the SST38VF6404B-70-5I-EKE?
The 128-bit Unique ID in the SST38VF6404B-70-5I-EKE is factory-programmed, unalterable, and electrically isolated from the main memory array. It serves as a hardware root-of-trust identifier for device authentication, secure boot binding, and production traceability. Unlike software-managed IDs, it cannot be overwritten or cloned, making it suitable for regulatory compliance (e.g., FDA, ISO 13485) and anti-counterfeiting in medical and industrial systems. The SST38VF6404B-70-5I-EKE exposes this ID via standard read commands at a dedicated address range.
How does the Auto Low Power mode operate in the SST38VF6404B-70-5I-EKE?
The SST38VF6404B-70-5I-EKE enters Auto Low Power mode automatically after a valid read access completes, reducing active current from 25 mA to 5 µA - matching standby consumption. It exits instantly (<100 ns) upon any address or control signal transition (e.g., CE# toggle or A0 change), with no added access delay. This mode is disabled during power-up if CE# remains low; it activates only after the first address transition or CE# high pulse. The SST38VF6404B-70-5I-EKE uses this feature to minimize energy use in intermittently accessed firmware storage without sacrificing responsiveness.
SST38VF6404B-70-5I-EKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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-70-5I-EKE FAQ
1.How can I place an order for SST38VF6404B-70-5I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6404B-70-5I-EKE 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-70-5I-EKE reliable?
The price and inventory of SST38VF6404B-70-5I-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6404B-70-5I-EKE is usually 5 days.
3.What payment methods are accepted for SST38VF6404B-70-5I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6404B-70-5I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6404B-70-5I-EKE?
SST38VF6404B-70-5I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6404B-70-5I-EKE 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-70-5I-EKE?
For technical support, including SST38VF6404B-70-5I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6404B-70-5I-EKE requirements.
6.How does Aetrix verify that SST38VF6404B-70-5I-EKE is sourced from the original manufacturer or authorized distributors?
All SST38VF6404B-70-5I-EKE 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-70-5I-EKE meets industry standards.
7.What is the process for return or replacement of SST38VF6404B-70-5I-EKE?
All SST38VF6404B-70-5I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6404B-70-5I-EKE, 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-70-5I-EKE part is unused and in its original packaging.
Return procedure for SST38VF6404B-70-5I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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