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Microchip Technology SST38VF6403-90-5I-B3KE
- Part No.:
- SST38VF6403-90-5I-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6403-90-5I-B3KE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,835
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Product details
Overview
SST38VF6403-90-5I-B3KE 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 2.7–3.6 V supply, delivers 90 ns read access time, supports 100,000 erase/program 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 SST38VF6403-90-5I-B3KE datasheet, SST38VF6403-90-5I-B3KE pinout, SST38VF6403-90-5I-B3KE application, or SST38VF6403-90-5I-B3KE equivalent, this page provides verified technical context, JEDEC-compliant x16 interface timing, boot-block protection behavior specific to SST38VF6403, 48-ball TFBGA package mapping, and real-world design implications of its 4-word page read buffer and write-buffer programming.
Technical Context
The SST38VF6403-90-5I-B3KE implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its command-set architecture follows JEDEC-standard x16 flash pinouts and CFI compliance, supporting software-controlled sector/block erase, chip-erase, and erase-suspend/resume operations.
It features dual status detection (DQ6 toggle bit and DQ7 data# polling), RY/BY# output for hardware monitoring, and hardware reset (RST#) for recovery from write errors. The boot block (S0–S1 in Block B0) is protected via WP# pin and supports both volatile and non-volatile block locking - a key differentiator from SST38VF6401/6402/6404 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), providing 8 MB of addressable nonvolatile storage. |
| Read Access Time | 90 ns (max), defining minimum bus cycle time for standard random read in legacy parallel interfaces. |
| Page Read Speed | 25 ns per word (4-word page), enabling burst-like throughput without external buffering in microcontroller-based systems. |
| Erase/Program Endurance | 100,000 cycles minimum, ensuring reliable firmware updates over product lifetime in industrial deployments. |
| Data Retention | Greater than 100 years at +25°C, eliminating need for periodic refresh or backup in unattended equipment. |
| Supply Voltage | 2.7–3.6 V single supply, compatible with 3.3 V logic domains and simplifying power rail design vs. 5 V flash alternatives. |
| Write Buffer Size | 16-word buffer, reducing effective programming time to 1.75 µs/word when loading contiguous data. |
Pinout & Package
Package: 48-ball Thin Fine-Pitch Ball Grid Array (TFBGA), RoHS-compliant, 6 mm × 8 mm footprint, 0.5 mm ball pitch, bottom-side thermal pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A12 select sector during erase, A21–A15 select block. |
| DQ0–DQ15 | Data I/O (x16) | 16-bit bidirectional data bus with internal latching; tri-stated when CE# or OE# high per JEDEC standard. |
| CE# | Chip Enable | Active-low device selection signal; must be low for all read/write/erase operations. |
| OE# | Output Enable | Active-low gating of output buffers; controls data visibility on DQ lines during read cycles. |
| WE# | Write Enable | Active-low control for write/erase command latching; timing-critical for command sequence validity. |
| WP# | Write Protect | Hardware lock for boot block (S0–S1); grounded to prevent accidental erase/program of critical startup code. |
| RST# | Reset Input | Active-low signal forcing device into read mode; used to recover from failed write or suspend states. |
| RY/BY# | Ready/Busy Output | Open-drain status indicator: low = active programming/erasing, high = ready for next command. |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling required within 10 mm of VDD/VSS pairs. |
| VSS | Ground | Primary reference for all signals; two dedicated VSS balls improve noise immunity in high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Protection | Hardware-enabled 8 KWord (S0–S1) protection in Block B0, configurable via WP# pin and software locks - prevents corruption of bootloader code. |
| Write-Buffer Programming | 16-word buffer reduces average programming time to 1.75 µs/word, accelerating firmware patching by >4× vs. single-word writes. |
| Erase-Suspend/Resume | Allows reading or programming other sectors during active erase, enabling real-time system responsiveness in safety-critical applications. |
| Auto Low Power Mode | Reduces active read current from 4 mA to 3 µA after valid access, cutting standby power in always-on edge devices. |
| 128-bit Unique ID | Factory-programmed serial number enabling secure device authentication and firmware binding in certified industrial systems. |
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 with ambient temperatures up to +85°C. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped to microcontroller address space, accessed via parallel x16 bus with 90 ns timing constraints. Use Value: Hardware boot-block protection ensures bootloader integrity during remote firmware upgrades; 100,000-cycle endurance supports decades of version iterations. |
Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory audit logs in portable diagnostic equipment requiring traceable data retention. IC Role / Device Role / Timing Role: Configuration and data logging memory interfaced to ARM Cortex-M7 MCU via static memory controller with wait-state management. Use Value: >100-year data retention meets IEC 62304 Class C software requirements; unique 128-bit ID enables per-unit calibration certificate binding. |
| Telecom Base Station Boot ROM | Automotive ADAS Camera Module Storage |
Use Scenario: Hosting boot code and FPGA configuration bitstreams in outdoor telecom infrastructure exposed to wide temperature swings and EMI. IC Role / Device Role / Timing Role: Primary boot memory accessed at power-on reset; relies on RY/BY# and DQ6 toggle for deterministic initialization sequencing. Use Value: RST# pin enables safe recovery from brown-out-induced write failures; SuperFlash technology ensures consistent 18 ms block-erase time across lifetime. |
Use Scenario: Storing camera calibration parameters and firmware patches in automotive surround-view systems operating per AEC-Q100 Grade 2 (-40°C to +105°C). IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during camera power-up; uses Page Read (25 ns) for fast parameter load before image streaming. Use Value: 4-word page buffer accelerates calibration data fetch; WP#-enabled boot block prevents overwrite of critical safety-critical startup routines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST38VF6401-90-5I-B3KE | Identical 64 Mbit x16 architecture and timing, but boot block located in B127 (top) instead of B0 (bottom); no per-sector VPB/NVPB in B0. | Suitable for systems where boot code resides in upper memory map; requires address remapping if migrating from SST38VF6403. | Select only if hardware design allocates boot vector to top 8 KWord and does not require S0/S1-level granularity protection. |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns access, but lacks write-buffer programming, erase-suspend, and 128-bit UID; uses different command set and JEDEC pinout variant. | Lower-cost option for static firmware storage without field update requirements; no support for real-time suspend during erase. | Choose when firmware is write-once or updated infrequently, and system software cannot accommodate SST38VF6403's extended command set. |
Compared with SST38VF6401-90-5I-B3KE, the SST38VF6403-90-5I-B3KE provides bottom-boot flexibility and finer-grained sector protection in Block B0, while MX29LV640ETTI-90G trades advanced features for cost and legacy compatibility - making SST38VF6403 optimal for upgradable embedded systems needing robust boot integrity.
Availability
SST38VF6403-90-5I-B3KE is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, telecom base stations, and automotive ADAS modules requiring stable component supply across multi-year production cycles.
Supply support for SST38VF6403-90-5I-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 Inc. is a leading provider of microcontrollers, analog components, and memory solutions, with emphasis on reliability, longevity, and industrial-grade qualification.
The SST38VF6403 belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) family, engineered specifically for embedded systems demanding high endurance, deterministic timing, and hardware-enforced memory protection in harsh environments.
FAQ
What is the boot block configuration of SST38VF6403-90-5I-B3KE?
The SST38VF6403-90-5I-B3KE features a bottom-boot configuration where the 8 KWord boot block occupies sectors S0 and S1 in Block B0 (addresses 0000000000 and 0000000001). Unlike SST38VF6401/6402, each sector in B0 has its own volatile and non-volatile protection bits (VPB/NVPB), enabling granular lockdown of individual 4 KWord segments - a capability confirmed in DS20005015D Table 3.
Does SST38VF6403-90-5I-B3KE support write-buffer programming, and what is its practical benefit?
Yes, SST38VF6403-90-5I-B3KE supports 16-word write-buffer programming with a typical speed of 1.75 µs per word. This reduces effective programming time for contiguous data by over 4× compared to single-word writes, significantly accelerating firmware patching in field-deployed equipment - a feature validated in DS20005015D Section "Write-Buffer Programming".
How does the RY/BY# pin function during erase-suspend operations on SST38VF6403-90-5I-B3KE?
During an erase-suspend operation, the RY/BY# pin remains low (busy) until the suspend command completes (~20 µs), then transitions high to indicate readiness for read/program operations on unprotected blocks. It returns low only upon issuing Erase-Resume - behavior explicitly defined in DS20005015D Section "Erase-Suspend/Erase-Resume Commands".
Is SST38VF6403-90-5I-B3KE pin-compatible with SST38VF6402-90-5I-B3KE in the 48-ball TFBGA package?
Yes, SST38VF6403-90-5I-B3KE shares identical pinout, electrical characteristics, and JEDEC x16 interface timing with SST38VF6402-90-5I-B3KE in the 48-ball TFBGA package (per DS20005015D Figures 3 and Table 1), but differs in boot block location and protection granularity - requiring firmware validation before substitution.
What is the maximum operating temperature range for SST38VF6403-90-5I-B3KE?
SST38VF6403-90-5I-B3KE is rated for industrial temperature operation from –40°C to +85°C, as specified in the "Ordering Information" section of DS20005015D and confirmed by the 'I' suffix in the part number - making it suitable for deployment in uncontrolled environmental conditions without forced cooling.
SST38VF6403-90-5I-B3KE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- 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:
- 90 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
SST38VF6403-90-5I-B3KE FAQ
1.How can I place an order for SST38VF6403-90-5I-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6403-90-5I-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 SST38VF6403-90-5I-B3KE reliable?
The price and inventory of SST38VF6403-90-5I-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6403-90-5I-B3KE is usually 5 days.
3.What payment methods are accepted for SST38VF6403-90-5I-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6403-90-5I-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6403-90-5I-B3KE?
SST38VF6403-90-5I-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6403-90-5I-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 SST38VF6403-90-5I-B3KE?
For technical support, including SST38VF6403-90-5I-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6403-90-5I-B3KE requirements.
6.How does Aetrix verify that SST38VF6403-90-5I-B3KE is sourced from the original manufacturer or authorized distributors?
All SST38VF6403-90-5I-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 SST38VF6403-90-5I-B3KE meets industry standards.
7.What is the process for return or replacement of SST38VF6403-90-5I-B3KE?
All SST38VF6403-90-5I-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6403-90-5I-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 SST38VF6403-90-5I-B3KE part is unused and in its original packaging.
Return procedure for SST38VF6403-90-5I-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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