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Microchip Technology SST38VF6402-90-5C-B3KE
- Part No.:
- SST38VF6402-90-5C-B3KE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6402-90-5C-B3KE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,795
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Product details
Overview
SST38VF6402-90-5C-B3KE 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. It operates from a single 2.7–3.6 V supply, delivers 90 ns read access time and 25 ns page read access, and supports hardware boot block protection with WP# pin. It is used in industrial controllers requiring field-upgradable firmware with high endurance and long data retention.
For engineers reviewing the SST38VF6402-90-5C-B3KE datasheet, SST38VF6402-90-5C-B3KE pinout, SST38VF6402-90-5C-B3KE application, or SST38VF6402-90-5C-B3KE equivalent, key selection criteria include boot block location (B127), uniform 32 KWord block erase capability, TSOP-48 package compatibility, and support for Write-Buffer Programming with 1.75 µs/word throughput.
Technical Context
The SST38VF6402-90-5C-B3KE implements SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count. Its JEDEC-standard x16 interface uses latched address/data with CMOS I/O compatibility and CFI compliance.
It features dual status detection (DQ6 toggle bit and DQ7 data# polling), RY/BY# output for hardware-ready signaling, and Erase-Suspend/-Resume functionality for concurrent read/program during erase operations. Boot block protection is implemented via hardware WP# pin and software-controlled individual block locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), providing 8 MB of nonvolatile storage for firmware or configuration data. |
| Read Access Time | 90 ns (max), enabling direct execution from flash in timing-critical microcontroller applications. |
| Page Read Time | 25 ns per word (4-word page), reducing average instruction fetch latency in burst-read scenarios. |
| Endurance | 100,000 program/erase cycles minimum, supporting frequent firmware updates over product lifetime. |
| Data Retention | Greater than 100 years at +25°C, ensuring long-term reliability without refresh in unpowered storage. |
| Supply Voltage | 2.7–3.6 V single supply, compatible with modern low-voltage embedded power rails and eliminating need for charge pumps. |
| Write Buffer Size | 16-word buffer, enabling 1.75 µs/word effective programming rate and reducing host CPU overhead during bulk writes. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, surface-mountable with standard JEDEC x16 memory footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS1–A0) selecting 4M × 16 locations; A21–A15 selects block, A21–A12 selects sector. |
| DQ0–DQ15 | Data Input/Output | 16-bit bidirectional data bus with tri-state outputs controlled by OE# and CE#; internally latched during write. |
| CE# | Chip Enable | Active-low chip select; device enters standby mode when high, minimizing power consumption during idle periods. |
| OE# | Output Enable | Active-low output gate; controls data bus drive only when CE# is also low, enabling shared bus operation. |
| WE# | Write Enable | Active-low control for write cycles; latches address/data on falling/rising edges per JEDEC command protocol. |
| WP# | Write Protect | Hardware boot block lock: grounded to protect B127 (top 32 KWord boot block) from accidental erase/program. |
| RST# | Reset | Active-low hardware reset that forces device into read mode, recovering from invalid command states. |
| RY/BY# | Ready/Busy Output | Open-drain status signal indicating active program/erase (low); eliminates need for polling in interrupt-driven systems. |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply with dedicated ground pins; decoupling required per JEDEC layout guidelines. |
| NC | No Connection | Unbonded pin (A16 in TSOP); must remain floating-no external connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Configuration | B127 (top 32 KWord block) protected by WP# pin-enables secure bootloader storage with hardware-level write disable. |
| Write-Buffer Programming | 16-word buffer with 1.75 µs/word effective programming time-reduces host wait states and improves firmware update throughput. |
| Erase-Suspend/-Resume | Allows read/program to non-erasing sectors during active erase-enables real-time system responsiveness during background flash maintenance. |
| Auto Low Power Mode | Reduces active read current from 4 mA to 3 µA after valid access-cuts dynamic power in intermittently accessed code storage. |
| Security-ID & OTP | 128-bit unique ID + 256-word user one-time-programmable area-supports device authentication and secure parameter binding. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
|
Use Scenario: Storing updatable ladder logic and I/O mapping tables in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware-protected boot sector ensuring safe recovery after failed updates. Use Value: 100,000-cycle endurance and >100-year data retention guarantee firmware integrity across 15+ year equipment lifecycles without backup power. |
Use Scenario: Holding calibrated sensor offsets, patient safety thresholds, and regulatory audit logs in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration memory with OTP space for cryptographic keys and calibration signatures. Use Value: WP#-enabled boot block protection prevents unauthorized modification of critical safety parameters during field servicing. |
| Automotive Infotainment Bootloader | Networking Equipment Image Storage |
|
Use Scenario: Hosting dual-image bootloader in telematics control units requiring A/B firmware partitioning and fail-safe rollback. IC Role / Device Role / Timing Role: High-speed flash memory supporting 25 ns page reads for fast boot sequence execution from cold start. Use Value: 90 ns read access and uniform 32 KWord block erase enable deterministic boot timing and rapid OTA image validation. |
Use Scenario: Storing multiple firmware images, FPGA bitstreams, and MAC address tables in managed Ethernet switches. IC Role / Device Role / Timing Role: Field-upgradable storage with Erase-Suspend capability allowing concurrent packet processing during flash updates. Use Value: RY/BY# output and Toggle Bit status enable interrupt-driven update management without CPU polling overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST38VF6401-90-5C-B3KE | Boot block located at B0 (bottom 32 KWord); identical timing, endurance, and command set. | Requires inverted boot protection logic-suitable for legacy designs where bootloader resides at lowest address. | Select when bottom-boot architecture matches existing PCB layout and firmware initialization flow. |
| MX29LV640ETTI-90G | 64 Mbit x16, 90 ns access, but uses different command set (AMD/Fujitsu) and lacks Write-Buffer Programming. | No native page-read acceleration or Erase-Suspend; requires longer update windows and tighter timing margins. | Choose only if AMD-compatible ecosystem is mandated and reduced programming throughput is acceptable. |
Compared with SST38VF6401-90-5C-B3KE and MX29LV640ETTI-90G, the SST38VF6402-90-5C-B3KE uniquely combines top-boot block protection with 16-word write buffering and Erase-Suspend-enabling safer, faster, and more responsive firmware updates in resource-constrained embedded systems.
Availability
SST38VF6402-90-5C-B3KE is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics, automotive infotainment, and networking equipment requiring stable component supply and long-term obsolescence management.
Supply support for SST38VF6402-90-5C-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 expertise in embedded control and nonvolatile storage technologies.
The SST38VF6402 belongs to Microchip's Advanced Multi-Purpose Flash Plus (MPF+) product line, engineered for high-reliability, low-power, field-upgradable memory in industrial, automotive, and medical applications.
FAQ
What is the boot block location for SST38VF6402-90-5C-B3KE?
The SST38VF6402-90-5C-B3KE features a top-boot configuration: its 32 KWord boot block occupies Block B127 (addresses A21–A15 = 1111111). This allows hardware write protection via the WP# pin and ensures bootloader integrity during firmware updates. The SST38VF6402-90-5C-B3KE datasheet confirms this mapping in Table 2, distinguishing it from the bottom-boot SST38VF6401 variant.
Does SST38VF6402-90-5C-B3KE support page read operations?
Yes, the SST38VF6402-90-5C-B3KE supports Page Read with a 4-word buffer and 25 ns access time per word. This mode enables faster sequential reads within the same page (A21–A2 constant), reducing average instruction fetch latency. The SST38VF6402-90-5C-B3KE implements this using asynchronous addressing with A1/A0 toggling, as specified in DS20005015D Section "Page Read".
What is the maximum operating voltage for SST38VF6402-90-5C-B3KE?
The SST38VF6402-90-5C-B3KE operates from a single 2.7 V to 3.6 V supply. Operation outside this range may cause data corruption or premature wear. The 90 ns read access time and all timing specifications-including Word-Program (7 µs) and Write-Buffer (1.75 µs/word)-are guaranteed only within this voltage window, as validated in DS20005015D AC Characteristics tables.
How does SST38VF6402-90-5C-B3KE indicate completion of a program operation?
The SST38VF6402-90-5C-B3KE provides three concurrent end-of-write detection methods: DQ7 Data# Polling, DQ6 Toggle Bit, and RY/BY# output. DQ7 returns complemented data until completion; DQ6 toggles during operation and stabilizes upon finish; RY/BY# goes high when ready. All three are valid after the fourth WE# pulse, as defined in DS20005015D Section "Write Operation Status Detection". The SST38VF6402-90-5C-B3KE supports any combination for robust host-side monitoring.
Is SST38VF6402-90-5C-B3KE RoHS compliant?
Yes, the SST38VF6402-90-5C-B3KE is RoHS compliant, as explicitly stated in the DS20005015D datasheet introduction and packaging section. It meets Directive 2011/65/EU requirements for restriction of hazardous substances, including lead-free terminations and halogen-free molding compounds. This compliance applies to both the 48-lead TSOP and 48-ball TFBGA variants of the SST38VF6402-90-5C-B3KE.
SST38VF6402-90-5C-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA
SST38VF6402-90-5C-B3KE FAQ
1.How can I place an order for SST38VF6402-90-5C-B3KE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402-90-5C-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 SST38VF6402-90-5C-B3KE reliable?
The price and inventory of SST38VF6402-90-5C-B3KE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6402-90-5C-B3KE is usually 5 days.
3.What payment methods are accepted for SST38VF6402-90-5C-B3KE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402-90-5C-B3KE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402-90-5C-B3KE?
SST38VF6402-90-5C-B3KE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402-90-5C-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 SST38VF6402-90-5C-B3KE?
For technical support, including SST38VF6402-90-5C-B3KE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402-90-5C-B3KE requirements.
6.How does Aetrix verify that SST38VF6402-90-5C-B3KE is sourced from the original manufacturer or authorized distributors?
All SST38VF6402-90-5C-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 SST38VF6402-90-5C-B3KE meets industry standards.
7.What is the process for return or replacement of SST38VF6402-90-5C-B3KE?
All SST38VF6402-90-5C-B3KE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402-90-5C-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 SST38VF6402-90-5C-B3KE part is unused and in its original packaging.
Return procedure for SST38VF6402-90-5C-B3KE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST38VF6402-90-5C-B3KE Tags
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