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Microchip Technology SST39VF040-70-4C-NHE-T
- Part No.:
- SST39VF040-70-4C-NHE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
SST39VF040-70-4C-NHE-T.pdf
- Description:
- IC FLASH 4MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,957
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Product details
Overview
SST39VF040-70-4C-NHE-T from Microchip Technology is a 4-Mbit (512K × 8) CMOS Multi-Purpose Flash memory IC with 2.7V–3.6V single-supply write operation, 70 ns read access time, and uniform 4-Kbyte sector erase architecture. It serves as nonvolatile program/data storage in embedded microcontroller systems requiring field-upgradable firmware and configuration data.
For engineers reviewing the SST39VF040-70-4C-NHE-T datasheet, SST39VF040-70-4C-NHE-T pinout, SST39VF040-70-4C-NHE-T application, or SST39VF040-70-4C-NHE-T equivalent, key selection criteria include voltage range compatibility (2.7V–3.6V), JEDEC-standard x8 interface, SuperFlash® endurance (100,000 cycles), and TSOP-32/PLCC-32 package options for space-constrained PCB layouts.
Technical Context
This device implements Microchip's proprietary SuperFlash® technology with split-gate cell design and thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count-eliminating software derating over lifetime. Its command-set architecture follows JEDEC® standard pinouts and uses three-byte software data protection (SDP) for byte programming and six-byte sequences for sector/chip erase.
Read operations require simultaneous CE# and OE# low; write status is confirmed via Toggle Bit (DQ6) or Data# Polling (DQ7). The device supports both WE#- and CE#-controlled timing modes and features hardware protections including noise/glitch immunity (<5 ns pulse rejection), VDD power-up/down detection, and write-inhibit mode during invalid control states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512K × 8), directly maps to 512 KB of byte-addressable nonvolatile storage |
| Read Access Time | 70 ns maximum - enables direct interfacing with 14 MHz microcontrollers without wait states |
| Supply Voltage Range | 2.7V–3.6V - supports battery-backed and low-voltage industrial systems |
| Endurance | 100,000 program/erase cycles - ensures reliable firmware updates across product lifecycle |
| Data Retention | Greater than 100 years - eliminates need for periodic refresh in long-deployment applications |
| Sector Size | Uniform 4-Kbyte sectors - simplifies partitioning of boot code, application, and configuration data |
| Active Current | 5 mA typical at 14 MHz - reduces system power budget during active read operations |
| Standby Current | 1 µA typical - critical for always-on embedded devices with sleep-mode requirements |
Pinout & Package
The SST39VF040-70-4C-NHE-T is available in 32-lead TSOP (Thin Small Outline Package) and 32-lead PLCC (Plastic Leaded Chip Carrier) packages. Pin functions are JEDEC®-compliant for x8 Flash memories and identical across both packages except for NC pin assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | A0–A17 used for full 512K addressing; A18 is MSB (AMS) and selects sector/block during erase |
| DQ0–DQ7 | Data I/O | Bidirectional 8-bit bus; tri-stated when CE# or OE# high; latched internally during write |
| CE# | Chip Enable | Active-low chip select; required low for all operations except standby |
| OE# | Output Enable | Active-low output gate; controls data bus drive during read only |
| WE# | Write Enable | Active-low control for program/erase; initiates internal timing on rising edge |
| VDD | Power Supply | 2.7V–3.6V supply; powers core logic and I/O buffers |
| VSS | Ground | Reference ground for all signals and internal circuitry |
| NC | No Connection | Pins 6 and 9 unconnected per TSOP; pins 1, 30, and NC/A17/A18 positions vary by package |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Fixed 18 ms sector erase and 70 ms chip erase times - eliminates runtime degradation and simplifies firmware timing logic |
| Software Data Protection | Three-byte sequence for byte program, six-byte for sector/chip erase - prevents accidental writes during power transitions |
| End-of-Write Detection | Toggle Bit (DQ6) and Data# Polling (DQ7) - enables efficient polling without dedicated status registers or interrupts |
| CMOS I/O Compatibility | Full JEDEC® x8 pinout and command set - ensures drop-in replacement for legacy parallel Flash in existing designs |
| Low-Power Standby | 1 µA typical current - meets energy budgets for battery-powered IoT edge nodes and portable instrumentation |
| Hardware Write Inhibit | Automatic disable when OE# low, CE# high, or WE# high - prevents corruption during power-up/down sequencing |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers deployed in factory automation environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into MCU address space; accessed via parallel bus during boot and field update. Use Value: 100-year data retention and -40°C to +85°C industrial temp range ensure reliability across decades of unattended operation. | Use Scenario: Holding patient-specific therapy parameters and device serialization data in portable diagnostic equipment requiring regulatory-compliant data integrity. IC Role / Device Role / Timing Role: Secure configuration storage with hardware/software write protection preventing unauthorized parameter modification. Use Value: 100,000-cycle endurance supports frequent recalibration and firmware patches without wear-out risk. |
| Automotive Infotainment Bootloader | Networking Equipment Image Backup |
Use Scenario: Hosting bootloader code and fail-safe recovery image in automotive head units where AEC-Q100 compliance and robustness against EMI are mandatory. IC Role / Device Role / Timing Role: Primary boot memory accessed at power-on reset; supports fast 70 ns reads to minimize boot latency. Use Value: 2.7V–3.6V operation tolerates automotive battery transients; SuperFlash® fixed timing avoids timing margin erosion over lifetime. | Use Scenario: Maintaining redundant firmware copies in enterprise switches and routers for zero-downtime upgrades and rollback capability. IC Role / Device Role / Timing Role: Secondary nonvolatile storage bank accessed via memory-mapped I/O during upgrade verification and fallback. Use Value: Uniform 4-Kbyte sectors enable atomic sector-level updates without erasing entire image, reducing upgrade window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV400CBTI-70G | 4-Mbit (512K × 8), 3.0V–3.6V supply, 70 ns access, but uses different command set and lacks SuperFlash® fixed timing | Requires modified driver software due to non-JEDEC-compatible erase commands and status polling method | Select when legacy board layout requires same pinout but firmware can be adapted for alternate command protocol |
| SST39VF040-70-4I-NHE | Identical electrical and functional spec except rated for industrial temperature (-40°C to +85°C) vs. commercial (0°C to +70°C) | Same use cases but qualified for extended thermal environments without derating | Select for new designs targeting industrial or automotive under-hood applications where ambient exceeds 70°C |
Compared with MX29LV400CBTI-70G, SST39VF040-70-4C-NHE-T offers JEDEC®-standard command compatibility and guaranteed fixed erase times, reducing firmware complexity; versus SST39VF040-70-4I-NHE, it trades extended temperature rating for lower cost in commercial-grade deployments.
Availability
SST39VF040-70-4C-NHE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and automotive infotainment bootloader applications requiring stable component supply and long-term obsolescence management.
Supply support for SST39VF040-70-4C-NHE-T 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 microcontroller, mixed-signal, analog, and Flash memory solutions, serving industrial, automotive, communications, and consumer markets with high-reliability semiconductor products.
The SST39VF series belongs to Microchip's Multi-Purpose Flash (MPF) product line, designed specifically for embedded systems requiring field-upgradable nonvolatile storage with robust data integrity, low-voltage operation, and JEDEC®-compliant parallel interfaces.
FAQ
What is the memory organization of the SST39VF040-70-4C-NHE-T?
The SST39VF040-70-4C-NHE-T is organized as 512K × 8, delivering 4 Mbit (512 KB) of byte-addressable nonvolatile storage. This structure aligns with standard 8-bit microcontroller buses and supports direct memory mapping without data width conversion. Its address space spans A0–A17, with A18 serving as the most significant address bit (AMS) for sector/block selection during erase operations.
Does the SST39VF040-70-4C-NHE-T support both TSOP and PLCC packages?
Yes, the SST39VF040-70-4C-NHE-T is offered in both 32-lead TSOP and 32-lead PLCC packages. The 'NHE' suffix denotes the TSOP variant, while PLCC versions carry distinct part number suffixes (e.g., 'NH'). Pin functions and JEDEC®-compliant signal assignments are identical between packages, though NC pin locations differ - confirming compatibility for footprint-swappable designs with appropriate layout validation.
How does the SST39VF040-70-4C-NHE-T handle write completion detection?
The SST39VF040-70-4C-NHE-T provides two hardware-supported methods: Toggle Bit (DQ6) toggles between 0 and 1 during internal program/erase and stops when complete; Data# Polling (DQ7) returns complemented data during write and true data upon completion. Both are valid after the fourth (program) or sixth (erase) WE#/CE# pulse, enabling efficient polling without external status registers or interrupts in the SST39VF040-70-4C-NHE-T.
What voltage range is required for write operations on the SST39VF040-70-4C-NHE-T?
The SST39VF040-70-4C-NHE-T requires a single supply voltage of 2.7V to 3.6V for all read and write operations - including byte programming, sector erase, and chip erase. This wider low-voltage range compared to the SST39LF series (3.0V–3.6V) enables compatibility with battery-powered and energy-efficient systems where supply rails may dip below 3.0V, while maintaining full functionality throughout the SST39VF040-70-4C-NHE-T operating range.
Is the SST39VF040-70-4C-NHE-T RoHS compliant?
Yes, the SST39VF040-70-4C-NHE-T is RoHS compliant per the manufacturer's documentation. All devices in the SST39LF/VF family meet JEDEC® standards and are manufactured using lead-free processes. The '-T' suffix in the part number explicitly indicates tape-and-reel packaging compatible with RoHS-compliant surface-mount assembly, ensuring conformance with environmental regulations for commercial and industrial electronics production involving the SST39VF040-70-4C-NHE-T.
SST39VF040-70-4C-NHE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (11.43x13.97)
SST39VF040-70-4C-NHE-T FAQ
1.How can I place an order for SST39VF040-70-4C-NHE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF040-70-4C-NHE-T 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 SST39VF040-70-4C-NHE-T reliable?
The price and inventory of SST39VF040-70-4C-NHE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF040-70-4C-NHE-T is usually 5 days.
3.What payment methods are accepted for SST39VF040-70-4C-NHE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF040-70-4C-NHE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF040-70-4C-NHE-T?
SST39VF040-70-4C-NHE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF040-70-4C-NHE-T 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 SST39VF040-70-4C-NHE-T?
For technical support, including SST39VF040-70-4C-NHE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF040-70-4C-NHE-T requirements.
6.How does Aetrix verify that SST39VF040-70-4C-NHE-T is sourced from the original manufacturer or authorized distributors?
All SST39VF040-70-4C-NHE-T 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 SST39VF040-70-4C-NHE-T meets industry standards.
7.What is the process for return or replacement of SST39VF040-70-4C-NHE-T?
All SST39VF040-70-4C-NHE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF040-70-4C-NHE-T, 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 SST39VF040-70-4C-NHE-T part is unused and in its original packaging.
Return procedure for SST39VF040-70-4C-NHE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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