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Microchip Technology SST39VF010-70-4I-WHE
- Part No.:
- SST39VF010-70-4I-WHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39VF010-70-4I-WHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,809
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Product details
Overview
SST39VF010-70-4I-WHE from Microchip Technology (formerly Silicon Storage Technology) is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with JEDEC-standard x8 parallel interface, 70 ns read access time, 2.7–3.6 V single-supply operation, and industrial temperature range (−40°C to +85°C). It delivers byte-program capability, uniform 4 KB sector erase, and on-chip hardware/software data protection for embedded firmware storage in microcontroller-based systems.
For engineers reviewing the SST39VF010-70-4I-WHE datasheet, SST39VF010-70-4I-WHE pinout, SST39VF010-70-4I-WHE application, or SST39VF010-70-4I-WHE equivalent, this page provides verified technical context, JEDEC-compliant pin mapping, real-world use cases in industrial control and legacy system upgrades, and two validated alternative flash parts with documented functional and parametric differences.
Technical Context
This device implements SST's proprietary SuperFlash technology with split-gate cell architecture and thick-oxide tunneling injector, enabling fixed erase/program timing independent of cycle count-unlike conventional flash where performance degrades over endurance life. It supports standard microprocessor bus interfacing via CE#, OE#, and WE# control lines, with latched address/data inputs and tri-state outputs.
Operation relies on JEDEC-standard command sequences: three-byte software unlock for byte-program, six-byte sequence for sector or chip erase, and dedicated commands for product identification (Manufacturer ID = BFH, Device ID = D5H). End-of-write detection uses Data# Polling (DQ7) and Toggle Bit (DQ6), both valid after the fourth (program) or sixth (erase) WE#/CE# pulse edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - supports full firmware image storage for 8-bit/16-bit MCUs with ≤128 KB code space. |
| Read Access Time | 70 ns - enables direct execution (XIP) from flash at up to ~14 MHz bus frequency without wait states. |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic systems and tolerant of brown-out conditions down to 2.7 V during write operations. |
| Endurance | 100,000 program/erase cycles - sufficient for field firmware updates over 10+ years in industrial equipment. |
| Data Retention | >100 years - ensures long-term reliability in unpowered storage applications such as configuration EEPROM replacement. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade deployment in motor drives, PLCs, and outdoor instrumentation. |
| Package | 32-lead TSOP (8 mm × 14 mm) - surface-mount compatible with automated PCB assembly and space-constrained designs. |
Pinout & Package
32-lead TSOP (8 mm × 14 mm) package with JEDEC-standard x8 parallel interface pinout. Pin functions conform to industry-wide flash memory conventions for seamless integration into existing 8-bit bus architectures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A16 select one of 131,072 bytes; A16 is MSB for 128K×8 addressing (SST39VF010 only). |
| DQ0–DQ7 | Data Input/Output | Bidirectional 8-bit data bus; outputs tri-stated when CE# or OE# is high; latched during write cycles. |
| CE# | Chip Enable | Active-low global enable: device enters standby mode (1 µA) when high; required low for all operations. |
| OE# | Output Enable | Active-low output gate: controls data bus drive during read; high impedance when asserted high. |
| WE# | Write Enable | Active-low write control: initiates byte-program, sector-erase, or chip-erase upon rising edge timing sequences. |
| VDD | Power Supply | 2.7–3.6 V supply; internal charge pump generates VPP for programming/erasing-no external high-voltage source needed. |
| VSS | Ground | Reference ground for all I/O and core logic; decoupling capacitor required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell architecture ensures stable 70 ns read timing and fixed 14 µs byte-program time across full 100k-cycle life. |
| Uniform 4 KB Sectors | 32 independent sectors allow selective firmware patching without erasing entire memory-reducing update latency and wear. |
| Hardware + Software Protection | Glitch immunity (<5 ns pulses rejected), VDD power-up/down detection, and JEDEC-compliant 3-byte unlock prevent accidental writes. |
| End-of-Write Detection | DQ7 (Data# Polling) and DQ6 (Toggle Bit) provide deterministic, software-pollable status-eliminates need for fixed delay timers. |
| Industrial Temperature Range | −40°C to +85°C operation with guaranteed 2.7–3.6 V VDD support enables deployment in harsh environments without derating. |
Applications
| Industrial PLC Firmware Storage | Legacy Embedded System Upgrade |
|---|---|
|
Use Scenario: Storing ladder logic programs and I/O configuration tables in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped to MCU address space; accessed via 8-bit parallel bus with 70 ns read timing for deterministic scan-cycle execution. Use Value: 100,000-cycle endurance supports field firmware updates over 15+ years; industrial temp rating ensures reliability in unconditioned control cabinets. |
Use Scenario: Replacing obsolete EPROMs (e.g., 27C010) in legacy medical devices and test equipment requiring in-system reprogramming. IC Role / Device Role / Timing Role: Drop-in x8 parallel flash with identical pinout and JEDEC command set-enables firmware updates without PCB redesign. Use Value: Single 3.3 V supply eliminates need for 12 V programming voltage; software data protection prevents corruption during power cycling. |
| Motor Drive Parameter Storage | Communications Module Boot Code |
|
Use Scenario: Holding calibration coefficients, PID tuning parameters, and safety thresholds in variable-frequency drives operating in high-noise industrial settings. IC Role / Device Role / Timing Role: Configuration memory accessed during startup and runtime; sector-erase allows parameter updates without disrupting active motor control. Use Value: 4 KB sector granularity enables atomic updates of critical parameters; >100-year data retention ensures settings persist through equipment lifetime. |
Use Scenario: Storing boot loader and communication stack firmware in RS-485/Modbus gateways used in building automation networks. IC Role / Device Role / Timing Role: Primary boot memory mapped to reset vector; read during cold start and warm reset to initialize protocol stack. Use Value: 70 ns access time meets tight boot timing budgets; industrial temp range supports deployment in HVAC duct-mounted enclosures. |
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 |
|---|---|---|---|
| AT29LV010A-12JC | 1 Mbit, 120 ns read access, 3.0–3.6 V supply, PLCC-32 only - slower timing, narrower VDD range, no industrial temp grade. | Not suitable for systems requiring sub-100 ns read or −40°C operation; lacks uniform sector architecture. | Select only if board uses PLCC socket and design tolerates longer read latency and reduced voltage margin. |
| S29AL004D-55TFI | 4 Mbit (512K × 8), 55 ns read, 2.7–3.6 V, TSOP-48 - higher density, faster access, different pin count and command set. | Requires PCB layout change (48-pin vs. 32-pin); incompatible sector map and unlock sequence - not drop-in. | Choose when upgrading capacity and speed is acceptable; verify bootloader compatibility with AMD/Fujitsu command set. |
Compared with AT29LV010A-12JC, SST39VF010-70-4I-WHE offers 30 ns faster read timing and industrial temperature support; versus S29AL004D-55TFI, it provides pin-compatible 32-lead TSOP footprint and simpler JEDEC command flow at lower density-ideal for cost-sensitive, space-constrained retrofits.
Availability
SST39VF010-70-4I-WHE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy embedded system upgrades, motor drive parameter storage, and communications module boot code requiring stable component supply and long-lifecycle support.
Supply support for SST39VF010-70-4I-WHE 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 acquired Silicon Storage Technology (SST) in 2016 and continues to manufacture and support the SST39VF family as part of its broad parallel NOR flash portfolio.
The SST39VF series was designed specifically for cost-sensitive, industrial-grade embedded systems needing reliable, low-voltage, JEDEC-compliant flash memory with robust data retention and field-upgrade capability.
FAQ
What is the exact memory organization of SST39VF010-70-4I-WHE?
The SST39VF010-70-4I-WHE is organized as 128K words × 8 bits (1 Mbit total), with address lines A0–A16 supporting full 131,072-byte addressing. Its uniform 4 KB sector architecture comprises 32 independent erasable blocks, each accessible via AMS–A12 address lines during sector-erase operations.
Does SST39VF010-70-4I-WHE require an external VPP voltage for programming?
No. The SST39VF010-70-4I-WHE integrates an internal charge pump that generates the high voltage required for programming and erasing. Only a single 2.7–3.6 V supply (VDD) is needed-no external VPP source or programming adapter is required for byte-program or sector-erase operations.
How is end-of-write detection implemented in SST39VF010-70-4I-WHE?
The SST39VF010-70-4I-WHE provides two hardware-supported methods: Data# Polling (DQ7 toggles complement/data state until completion) and Toggle Bit (DQ6 alternates 0/1 during operation, then locks). Both are valid after the fourth WE#/CE# pulse edge for programming and sixth edge for erase-enabling deterministic polling without fixed delays.
Is SST39VF010-70-4I-WHE pin-compatible with older 27C010 EPROMs?
Yes-SST39VF010-70-4I-WHE uses the JEDEC-standard 32-pin x8 parallel flash pinout, matching 27C010 EPROMs in signal assignment (A0–A16, DQ0–DQ7, CE#, OE#, WE#). However, it replaces 12 V programming with 3.3 V in-system write capability and adds software data protection, requiring minor firmware adaptation.
What is the maximum byte-program time specification for SST39VF010-70-4I-WHE?
The maximum byte-program time for SST39VF010-70-4I-WHE is 20 µs under all operating conditions (−40°C to +85°C, 2.7–3.6 V). This fixed timing-guaranteed by SuperFlash technology-is independent of program cycle count, eliminating the need for software derating over device lifetime.
SST39VF010-70-4I-WHE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-TFSOP (0.488", 12.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
SST39VF010-70-4I-WHE FAQ
1.How can I place an order for SST39VF010-70-4I-WHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39VF010-70-4I-WHE 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 SST39VF010-70-4I-WHE reliable?
The price and inventory of SST39VF010-70-4I-WHE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39VF010-70-4I-WHE is usually 5 days.
3.What payment methods are accepted for SST39VF010-70-4I-WHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39VF010-70-4I-WHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39VF010-70-4I-WHE?
SST39VF010-70-4I-WHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39VF010-70-4I-WHE 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 SST39VF010-70-4I-WHE?
For technical support, including SST39VF010-70-4I-WHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39VF010-70-4I-WHE requirements.
6.How does Aetrix verify that SST39VF010-70-4I-WHE is sourced from the original manufacturer or authorized distributors?
All SST39VF010-70-4I-WHE 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 SST39VF010-70-4I-WHE meets industry standards.
7.What is the process for return or replacement of SST39VF010-70-4I-WHE?
All SST39VF010-70-4I-WHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39VF010-70-4I-WHE, 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 SST39VF010-70-4I-WHE part is unused and in its original packaging.
Return procedure for SST39VF010-70-4I-WHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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