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Microchip Technology SST38VF6403-90-5I-EKE
- Part No.:
- SST38VF6403-90-5I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6403-90-5I-EKE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,179
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Product details
Overview
SST38VF6403-90-5I-EKE from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, organized as 4M words × 16-bit data bus, operating from 2.7–3.6V single supply, with 90 ns read access time and JEDEC-compliant x16 pinout. It serves as nonvolatile program/data storage in embedded controllers, boot code storage, and firmware update modules requiring high reliability and low-power operation.
For engineers reviewing the SST38VF6403-90-5I-EKE datasheet, SST38VF6403-90-5I-EKE pinout, SST38VF6403-90-5I-EKE application, or SST38VF6403-90-5I-EKE equivalent, this device delivers verified 100,000-cycle endurance, >100-year data retention, hardware boot block protection, 4-word page read buffer, and write-buffer programming at 1.75 µs/word - critical for real-time firmware patching and secure boot implementations.
Technical Context
The SST38VF6403-90-5I-EKE implements SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its command-set architecture supports JEDEC-standard x16 flash operations including Word-Program, Write-Buffer Programming (16-word buffer), Sector-Erase (4 KWord), Block-Erase (32 KWord), and Chip-Erase - all initiated via six-byte command sequences with address latching on WE#/CE# edges.
It features dual status detection (DQ6 toggle bit, DQ7 data# polling) and RY/BY# output for end-of-write monitoring, plus Erase-Suspend/Resume capability for concurrent read/program during erase. The boot block (S0–S1 in Block B0) supports hardware WP#-based protection and software-controlled individual sector locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware images or configuration tables |
| Read Access Time | 90 ns - determines minimum CPU wait-state insertion for synchronous interface timing |
| Page Read Speed | 25 ns per word (4-word page) - enables burst reads without address re-latching, reducing bus overhead |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over full product lifecycle |
| Data Retention | >100 years at +25°C - ensures long-term integrity of stored boot code and calibration data |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic systems and tolerant of brown-out conditions |
| Active Current | 4 mA typical at 5 MHz - defines power budget for active read-intensive applications |
| Standby Current | 3 µA typical - enables ultra-low-power sleep modes in battery-backed systems |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS compliant, standard JEDEC x16 footprint.
| 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 |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with internal latching; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low chip select; device enters standby mode when high |
| OE# | Output Enable | Active-low output gate control; enables data output only when CE# and OE# both low |
| WE# | Write Enable | Controls write strobe timing; latches address/data on falling/rising edges per JEDEC protocol |
| WP# | Write Protect | Hardware boot block lock: grounded to protect S0–S1 (8 KWord) from accidental erase/program |
| RST# | Reset | Active-low hardware reset; returns device to read mode and aborts ongoing operations |
| RY/BY# | Ready/Busy | Open-drain status output: low during program/erase, high when ready for next command |
| VDD | Power Supply | +2.7–3.6 V supply; powers core logic and memory array |
| VSS | Ground | Reference ground for all I/O and core circuitry |
| NC | No Connection | Unbonded pin; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Write-Buffer Programming | 16-word buffer with 1.75 µs/word effective programming - reduces firmware update time by >80% vs. single-word writes |
| Boot Block Protection | Hardware-enabled 8 KWord (S0–S1) protection via WP# pin - prevents corruption of critical startup code |
| Erase-Suspend/Resume | Pause active erase to perform read/program elsewhere - enables real-time diagnostics during field updates |
| Security-ID & OTP | 128-bit unique ID + 256-word user one-time-programmable area - supports device authentication and secure key storage |
| Auto Low Power Mode | 3 µA standby current after valid read - eliminates need for external power gating in always-on systems |
| CFI Compliance | Standard Common Flash Interface implementation - enables plug-and-play compatibility with generic flash drivers |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with field serviceability requirements. IC Role / Device Role / Timing Role: Nonvolatile boot and application code storage with hardware write protection against EMI-induced corruption. Use Value: 100,000-cycle endurance and >100-year retention ensure 15+ year deployment without replacement; 90 ns read access meets deterministic scan-time deadlines. |
Use Scenario: Holding boot loader and OS kernel for head-unit microcontrollers where secure, fast startup is mandatory. IC Role / Device Role / Timing Role: Primary boot memory with protected S0–S1 sectors preventing unauthorized bootloader modification. Use Value: WP#-enabled hardware lock and CFI compliance simplify integration with AUTOSAR-compliant flash abstraction layers. |
| Medical Device Configuration Storage | Networking Equipment FPGA Bitstream Storage |
Use Scenario: Retaining calibrated sensor parameters and user preferences across power cycles in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, low-power configuration memory with OTP area for cryptographic keys. Use Value: 3 µA standby current extends battery life; Security-ID enables traceability and anti-counterfeiting per IEC 62304. |
Use Scenario: Storing FPGA configuration bitstreams for reconfigurable network switches requiring rapid, reliable reload after reset. IC Role / Device Role / Timing Role: High-speed parallel configuration memory interfaced directly to FPGA configuration pins. Use Value: 25 ns page read enables sub-100 ms FPGA startup; uniform 32 KWord block erase simplifies partial reconfiguration management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6403-90-5I-EKE | Same density, pinout, and timing but uses standard NOR architecture (not SuperFlash); 10× slower erase (180 ms vs. 18 ms) | Lacks Erase-Suspend and Write-Buffer; unsuitable for real-time firmware patching | Select only if legacy driver compatibility outweighs performance and feature requirements |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns, but no Write-Buffer or Erase-Suspend; requires 12 V VPP for program/erase | Higher system complexity due to dual-supply requirement; no hardware boot block protection | Prefer only in cost-sensitive designs where SuperFlash advantages are not required |
Compared with SST38VF6403-90-5I-EKE, the SST39VF6403 lacks SuperFlash speed and suspend capability, while MX29LV640ETTI demands external high-voltage generation and offers no hardware write protection - making SST38VF6403-90-5I-EKE the optimal choice for robust, low-power, real-time updatable embedded storage.
Availability
SST38VF6403-90-5I-EKE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical device configuration storage requiring stable component supply and long-term obsolescence management.
Supply support for SST38VF6403-90-5I-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 specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The SST38VF6403-90-5I-EKE belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) product line, designed specifically for high-reliability, low-voltage embedded applications requiring fast, secure, and field-upgradable nonvolatile storage.
FAQ
What is the boot block configuration of SST38VF6403-90-5I-EKE?
The SST38VF6403-90-5I-EKE features an 8 KWord boot block consisting of sectors S0 and S1 within Block B0. This region is hardware-protected via the WP# pin when grounded and supports software-based individual sector locking. Unlike SST38VF6401/6402, SST38VF6403-90-5I-EKE does not use uniform 32 KWord boot blocks - its B0 protection is granular at the 4 KWord sector level, enabling selective firmware partitioning.
Does SST38VF6403-90-5I-EKE support page read operations, and what is the timing benefit?
Yes, SST38VF6403-90-5I-EKE supports 4-word page read with 25 ns access time per word. This allows consecutive reads from the same page (A21–A2 identical) without re-latching address lines, reducing bus transaction overhead by up to 60% compared to standard random reads. The initial word requires full TACC (90 ns), but subsequent words require only TPACC (25 ns), delivering effective throughput of ~40 MB/s for sequential access.
How does the Write-Buffer Programming feature work in SST38VF6403-90-5I-EKE?
SST38VF6403-90-5I-EKE implements a 16-word write buffer that accepts up to 16 words via Write-to-Buffer command, then programs them collectively with Program Buffer-to-Flash. Each buffered word programs at 1.75 µs average, achieving >9× faster effective write speed than single-word programming (7 µs). The buffer requires exact block-address alignment and aborts on mismatched addresses or incorrect cycle count - DQ1 signals failure.
What status signals indicate completion of program or erase operations in SST38VF6403-90-5I-EKE?
SST38VF6403-90-5I-EKE provides three concurrent status mechanisms: DQ6 toggle bit (toggles during operation, stops when complete), DQ7 data# polling (complement of data during write, valid data when done), and RY/BY# output (active-low busy signal). All are valid after the rising edge of the fourth WE# pulse for program, or sixth for erase. These enable flexible host-side polling or interrupt-driven flow control without fixed timeout delays.
Is SST38VF6403-90-5I-EKE compatible with standard JEDEC x16 flash controllers?
Yes, SST38VF6403-90-5I-EKE conforms fully to JEDEC Standard JESD21-C for x16 flash pinouts and command sets, including CFI compliance. It supports standard commands (e.g., 50H sector erase, 30H block erase, 10H chip erase) and timing protocols. No custom drivers are needed - it integrates seamlessly with existing NOR flash controllers in ARM, MIPS, and PowerPC-based platforms.
SST38VF6403-90-5I-EKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- 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-TSOP
SST38VF6403-90-5I-EKE FAQ
1.How can I place an order for SST38VF6403-90-5I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6403-90-5I-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 SST38VF6403-90-5I-EKE reliable?
The price and inventory of SST38VF6403-90-5I-EKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6403-90-5I-EKE is usually 5 days.
3.What payment methods are accepted for SST38VF6403-90-5I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6403-90-5I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6403-90-5I-EKE?
SST38VF6403-90-5I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6403-90-5I-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 SST38VF6403-90-5I-EKE?
For technical support, including SST38VF6403-90-5I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6403-90-5I-EKE requirements.
6.How does Aetrix verify that SST38VF6403-90-5I-EKE is sourced from the original manufacturer or authorized distributors?
All SST38VF6403-90-5I-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 SST38VF6403-90-5I-EKE meets industry standards.
7.What is the process for return or replacement of SST38VF6403-90-5I-EKE?
All SST38VF6403-90-5I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6403-90-5I-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 SST38VF6403-90-5I-EKE part is unused and in its original packaging.
Return procedure for SST38VF6403-90-5I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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