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Microchip Technology SST38VF6402B-70-5I-EKE
- Part No.:
- SST38VF6402B-70-5I-EKE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST38VF6402B-70-5I-EKE.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,394
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Product details
Overview
SST38VF6402B-70-5I-EKE from Microchip Technology is a 64 Mbit (4M × 16) CMOS 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 100,000 program/erase cycles, and retains data for >100 years. Its boot-block architecture protects firmware during power-up sequences.
For engineers reviewing the SST38VF6402B-70-5I-EKE datasheet, SST38VF6402B-70-5I-EKE pinout, SST38VF6402B-70-5I-EKE application, or SST38VF6402B-70-5I-EKE equivalent, key selection criteria include boot-block protection orientation (top vs. bottom), TSOP-48 package compatibility, JEDEC x16 interface compliance, and support for Page Read (25 ns), Write Buffer (16-word), and Erase-Suspend functionality.
Technical Context
The SST38VF6402B-70-5I-EKE implements SST's SuperFlash technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of wear level. It uses standard JEDEC x16 command sets and CFI-compliant identification structures for system-level compatibility.
Its memory map allocates the topmost 32 KWord block (B127) as the hardware-protected boot block, activated via WP# pin grounding. Block-erase (18 ms typical) and chip-erase (40 ms typical) are initiated by six-byte command sequences, with status monitored via RY/BY#, DQ6 toggle, or DQ7 polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), directly maps to 8 MB address space with x16 bus width |
| Read Access Time | 70 ns max - defines minimum clock cycle for random reads in legacy parallel bus systems |
| Page Read Speed | 25 ns per word (8-word page) - enables burst-like throughput without external FIFO or controller assistance |
| Endurance | 100,000 program/erase cycles - guarantees field-replaceable firmware update capability over product lifetime |
| Data Retention | >100 years at 25°C - ensures long-term reliability in unpowered storage applications |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic rails and tolerant of brown-out conditions down to 2.7 V |
| Standby Current | 5 µA typical - supports ultra-low-power sleep modes in battery-backed or energy-harvested systems |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, lead-free, standard JEDEC MO-141AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A15 select block 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 device selection signal; deactivation places device in standby (5 µA) |
| OE# | Output Enable | Active-low output gating; controls data bus drive without affecting internal state |
| WE# | Write Enable | Controls latching of address/data during write cycles; initiates command sequences on rising edge |
| WP# | Write Protect | Hardware lock for boot block (B127); grounded to prevent accidental erase/program of firmware region |
| RST# | Reset | Hardware reset input; forces device into Read mode and clears internal command state |
| RY/BY# | Ready/Busy | Open-drain status indicator; low during active program/erase, high when ready for next command |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; no separate VCCIO required |
| VSS | Ground | Common reference for all signals and internal circuitry |
| NC | No Connection | Unbonded pin; must be left floating or tied to VSS per board layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Protection | Top 32 KWord (B127) protected by dedicated WP# pin - prevents corruption of bootloader during power transitions |
| Write Buffer Programming | 16-word buffer reduces effective programming time to 1.75 µs/word - accelerates firmware patching and field updates |
| Erase-Suspend/Resume | Pause block-erase to service real-time reads or writes elsewhere - essential for deterministic response in RTOS environments |
| Page Read Mode | 25 ns access for 8 consecutive words - improves sequential instruction fetch efficiency without external prefetch logic |
| Security-ID & OTP | 248-word user one-time-programmable area - enables secure device binding, license enforcement, or calibration storage |
Applications
| Industrial PLC Firmware Storage | Telecom Baseband Configuration |
|---|---|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating in harsh temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware boot-block protection ensuring safe power-on execution of validated firmware. Use Value: 100,000-cycle endurance and >100-year retention guarantee operational integrity across 15+ year deployments without field replacement. |
Use Scenario: Holding DSP parameter sets, RF calibration data, and protocol stack binaries in 4G/LTE base station radio units. IC Role / Device Role / Timing Role: High-speed parallel interface flash providing sub-70 ns random access for real-time configuration loading during channel handover. Use Value: Page Read (25 ns) and Write Buffer (1.75 µs/word) reduce configuration latency by >60% versus standard parallel NOR flash. |
| Medical Imaging Bootloader | Automotive Infotainment OS Image |
Use Scenario: Securing boot code and safety-critical initialization routines in FDA-cleared diagnostic imaging equipment. IC Role / Device Role / Timing Role: Trusted boot memory with 128-bit unique ID and OTP security features to authenticate firmware origin and integrity. Use Value: Hardware RST# and WP# pins enable fail-safe reset and write-lock behavior compliant with IEC 62304 Class C software requirements. |
Use Scenario: Storing primary OS kernel and UI assets in automotive head units requiring AEC-Q100 Grade 3 qualification. IC Role / Device Role / Timing Role: JEDEC-standard x16 flash interfacing directly with ARM Cortex-A application processors via parallel bus. Use Value: Single 2.7–3.6 V supply simplifies power design; 5 µA standby current extends battery backup runtime during ignition-off states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402B-70-5I-EKE | Same density, timing, and package; differs in command set (SST39 uses enhanced command protocol with faster buffer programming) | Requires updated driver firmware for Write Buffer and Erase-Suspend commands | Select if higher sustained write throughput is needed and firmware can be modified |
| MX29LV640EBTI-70G | 64 Mbit x16, 70 ns, but lacks Erase-Suspend, Write Buffer, and 128-bit UID; uses different JEDEC-compatible command set | Boot block is bottom-aligned (B0), not top-aligned (B127); no OTP security area | Choose for cost-sensitive designs where suspend/resume and security features are unnecessary |
Compared with SST38VF6402B-70-5I-EKE, SST39VF6402B-70-5I-EKE offers marginally faster buffer programming but requires driver changes, while MX29LV640EBTI-70G provides baseline compatibility at lower cost but omits critical reliability and security features required for firmware-critical applications.
Availability
SST38VF6402B-70-5I-EKE is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and medical device manufacturing requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for SST38VF6402B-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 provider of microcontrollers, analog, FPGA, and memory solutions, formed through the acquisition of Silicon Storage Technology (SST) in 2010.
The SST38VF6402B belongs to the Advanced Multi-Purpose Flash Plus (MPF+) product line, engineered specifically for reliable, low-voltage parallel NOR flash storage in firmware-critical embedded systems demanding high endurance and deterministic timing.
FAQ
What is the boot block configuration of the SST38VF6402B-70-5I-EKE?
The SST38VF6402B-70-5I-EKE features a top-aligned boot block: the highest 32 KWord block (B127, address range A21–A15 = 1111111) is hardware-protected via the WP# pin. This differs from the SST38VF6401B, which protects the lowest block (B0). The SST38VF6402B-70-5I-EKE datasheet confirms this mapping in Table 2 and supports boot-code integrity in systems where firmware resides at the upper memory boundary.
Does the SST38VF6402B-70-5I-EKE support Page Read, and what is its performance benefit?
Yes, the SST38VF6402B-70-5I-EKE supports Page Read with a 25 ns access time for eight consecutive words within the same page. This reduces average read latency by ~65% compared to standard 70 ns random reads, improving instruction fetch efficiency in microprocessor-based systems. The SST38VF6402B-70-5I-EKE implements this using an internal 8-word latch, eliminating need for external buffering logic.
How does the SST38VF6402B-70-5I-EKE indicate completion of a Program or Erase operation?
The SST38VF6402B-70-5I-EKE provides three concurrent status mechanisms: RY/BY# pin (open-drain, low-active), Toggle Bit on DQ6 (toggles during operation, stops when complete), and Data# Polling on DQ7 (complement of data during operation, valid data upon completion). All three are valid after the rising edge of the fourth (Program) or sixth (Erase) WE# pulse, as specified in the SST38VF6402B-70-5I-EKE preliminary specification DS25002A.
What package type is used for the SST38VF6402B-70-5I-EKE, and is it RoHS-compliant?
The SST38VF6402B-70-5I-EKE is supplied in a 48-lead TSOP (Thin Small Outline Package) with standard JEDEC MO-141AC footprint. It is fully RoHS-compliant and lead-free, meeting Directive 2011/65/EU requirements. Pin assignments match Figure 2 in the SST38VF6402B-70-5I-EKE datasheet DS25002A, and thermal characteristics support operation up to +85°C ambient.
Can the SST38VF6402B-70-5I-EKE be used in systems requiring AEC-Q100 qualification?
The SST38VF6402B-70-5I-EKE is rated for industrial temperature range (–40°C to +85°C) and carries the "I" suffix indicating industrial grade, but it is not AEC-Q100 qualified. For automotive applications requiring AEC-Q100 Grade 3 compliance, Microchip recommends the pin-compatible SST38VF6402B-70-5C-EKE (commercial grade) paired with external qualification testing, or migration to the automotive-qualified SST39VF6402B-70-5C-EKE variant, both referenced in the same product family documentation.
SST38VF6402B-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
SST38VF6402B-70-5I-EKE FAQ
1.How can I place an order for SST38VF6402B-70-5I-EKE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402B-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 SST38VF6402B-70-5I-EKE reliable?
The price and inventory of SST38VF6402B-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 SST38VF6402B-70-5I-EKE is usually 5 days.
3.What payment methods are accepted for SST38VF6402B-70-5I-EKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402B-70-5I-EKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402B-70-5I-EKE?
SST38VF6402B-70-5I-EKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402B-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 SST38VF6402B-70-5I-EKE?
For technical support, including SST38VF6402B-70-5I-EKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402B-70-5I-EKE requirements.
6.How does Aetrix verify that SST38VF6402B-70-5I-EKE is sourced from the original manufacturer or authorized distributors?
All SST38VF6402B-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 SST38VF6402B-70-5I-EKE meets industry standards.
7.What is the process for return or replacement of SST38VF6402B-70-5I-EKE?
All SST38VF6402B-70-5I-EKE units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402B-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 SST38VF6402B-70-5I-EKE part is unused and in its original packaging.
Return procedure for SST38VF6402B-70-5I-EKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST38VF6402B-70-5I-EKE Tags
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