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Microchip Technology SST39LF010-55-4I-WHE
- Part No.:
- SST39LF010-55-4I-WHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39LF010-55-4I-WHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,910
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Product details
Overview
SST39LF010-55-4I-WHE from Microchip Technology (formerly Silicon Storage Technology) is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with 55 ns read access time, single 3.0–3.6 V supply for both read and write operations, and uniform 4 KB sector-erase architecture. It serves as nonvolatile program/data storage in embedded microcontroller systems requiring field-upgradable firmware or configuration data.
For engineers reviewing the SST39LF010-55-4I-WHE datasheet, SST39LF010-55-4I-WHE pinout, SST39LF010-55-4I-WHE application, or SST39LF010-55-4I-WHE equivalent, key selection criteria include its JEDEC-standard x8 parallel interface, hardware/software data protection, SuperFlash® endurance (100,000 cycles), and industrial-grade temperature range (–40°C to +85°C) confirmed for this specific variant.
Technical Context
The SST39LF010-55-4I-WHE implements SST's proprietary SuperFlash® technology with split-gate cell design and thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count-unlike conventional flash. Its command-set follows JEDEC standard pinouts and software protocols, including three-byte unlock sequences for byte-program and six-byte sequences for sector/chip-erase.
It supports dual write-detection methods: Data# Polling (DQ7) and Toggle Bit (DQ6), both valid after the fourth WE#/CE# pulse during programming. The device uses latched address and data buses, operates with CMOS I/O compatibility, and features noise/glitch protection, VDD power-up/down detection, and write-inhibit mode via OE#, CE#, or WE# control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - provides sufficient space for boot code, calibration tables, or small firmware images in resource-constrained MCU systems. |
| Read Access Time | 55 ns - enables direct execution from flash (XIP) at up to ~14 MHz bus speeds without wait states in compatible controllers. |
| Supply Voltage | 3.0–3.6 V - single-supply operation simplifies power design versus dual-rail flash; compatible with 3.3 V logic domains. |
| Endurance | 100,000 program/erase cycles - supports frequent field updates (e.g., sensor calibration, parameter tuning) over product lifetime. |
| Data Retention | >100 years - ensures long-term reliability for unpowered storage in industrial or infrastructure equipment. |
| Sector Size | Uniform 4 KB sectors - allows granular firmware partitioning (e.g., bootloader, app, config) with minimal erase overhead. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including motor drives, PLCs, and outdoor telemetry units. |
Pinout & Package
Package: 32-lead PLCC (Plastic Leaded Chip Carrier), RoHS-compliant, surface-mountable with standard reflow profile (260°C for 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A16 provide full 128K address decoding; A16 is AMS (most significant address) for sector selection during erase. |
| DQ0–DQ7 | Data Input/Output | Bi-directional 8-bit data bus; outputs tri-state when CE# or OE# high; DQ6/DQ7 used for write-status polling. |
| CE# | Chip Enable | Active-low chip select; must be low for read/write; high-Z output and standby current (1 µA) when asserted high. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; required low with CE# low for valid read access. |
| WE# | Write Enable | Active-low write control; initiates byte-program, sector-erase, or chip-erase upon command sequence completion. |
| VDD | Power Supply | 3.0–3.6 V supply; internal VPP generation eliminates need for external high-voltage programming supply. |
| VSS | Ground | Reference ground for all signals and internal circuitry; decoupling capacitor required per datasheet layout guidelines. |
| NC | No Connection | Pins 12, 17, 24, and 31 are unconnected; must remain floating or tied to ground per PCB design rules. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide tunneling injector delivers fixed 18 ms sector-erase and 70 ms chip-erase times across full lifecycle-no software de-rating needed. |
| Software Data Protection | JEDEC-compliant three-byte unlock (5555H/AAH → 2AAAH/55H → 5555H/A0H) prevents accidental writes during power transitions or noise events. |
| Hardware Write Inhibit | Automatic disable when VDD < 1.5 V, plus glitch immunity for WE#/CE# pulses < 5 ns-ensures robustness in electrically noisy industrial settings. |
| Low Power Operation | 5 mA active current and 1 µA standby current enable battery-backed or energy-sensitive applications like remote sensors. |
| Parallel x8 Interface | Standard JEDEC pinout and timing (TRC = 55 ns, TAA = 55 ns) ensures drop-in compatibility with legacy 8-bit microcontrollers and ASICs. |
Applications
| Industrial PLC Firmware Storage | Medical Device Calibration Data |
|---|---|
|
Use Scenario: Storing firmware updates and configuration parameters in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into MCU address space; accessed via parallel bus during boot and runtime reconfiguration. Use Value: 100,000-cycle endurance supports quarterly firmware patches; 55 ns access enables real-time logic scan without CPU stall; industrial temp rating ensures uptime in unconditioned control cabinets. |
Use Scenario: Retaining calibrated sensor offsets and patient-specific therapy profiles in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, long-retention data storage accessed only during initialization or user-triggered recalibration. Use Value: >100-year data retention meets medical device regulatory requirements; hardware/software protection prevents corruption during battery swaps or ESD events. |
| Automotive Body Control Module | Networking Equipment Bootloader |
|
Use Scenario: Holding lighting control logic and door module configuration in automotive BCMs subjected to thermal cycling and vibration. IC Role / Device Role / Timing Role: Standalone flash memory interfaced to 8-bit or 16-bit automotive MCUs; erased/programmed only during dealer-level updates. Use Value: –40°C to +85°C operation survives under-hood thermal stress; uniform 4 KB sectors allow safe partial updates without erasing critical safety routines. |
Use Scenario: Hosting primary bootloader code in enterprise switches and routers requiring secure, field-upgradable startup firmware. IC Role / Device Role / Timing Role: XIP-capable memory providing deterministic boot latency; accessed directly by ARM or MIPS core on power-up. Use Value: 55 ns read time reduces boot duration; SuperFlash® fixed timing guarantees consistent update windows regardless of device age or usage history. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel-interface flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29LV010A-15JI | 1 Mbit, 150 ns access, 3.0–3.6 V, 100K endurance, but lacks Toggle Bit status detection and uses different command set. | Lower performance limits use in high-speed boot paths; requires custom driver adaptation due to non-JEDEC command protocol. | Select only if legacy AT29LV010A footprint compatibility is mandatory and 150 ns access is acceptable. |
| SST39VF010-70-4C-WHE | Same density and package, but 2.7–3.6 V supply, 70 ns access, commercial temp (0°C to +70°C), and VF-series voltage flexibility. | Not rated for industrial temperature; suitable for cost-sensitive consumer or office equipment where wider VDD range offsets slower speed. | Choose for designs needing lower-voltage operation or where ambient temperature stays within commercial range. |
Compared with SST39LF010-55-4I-WHE, AT29LV010A-15JI trades speed and JEDEC compliance for legacy footprint reuse, while SST39VF010-70-4C-WHE sacrifices industrial temp rating and read speed for broader supply voltage tolerance-neither is pin-compatible nor functionally identical without firmware revision.
Availability
SST39LF010-55-4I-WHE is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics, automotive body electronics, and networking equipment requiring stable component supply, long-lifecycle support, and guaranteed RoHS compliance.
Supply support for SST39LF010-55-4I-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 now manufactures, tests, and supports the SST39LF/VF family as part of its broad serial and parallel flash portfolio.
The SST39LF010-55-4I-WHE belongs to SST's Multi-Purpose Flash (MPF) product line, designed specifically for embedded systems requiring reliable, low-power, field-upgradable nonvolatile memory with JEDEC-standard interfaces and robust data integrity features.
FAQ
What is the operating voltage range for SST39LF010-55-4I-WHE?
The SST39LF010-55-4I-WHE operates from 3.0 V to 3.6 V for both read and write functions. This single-supply requirement eliminates the need for separate programming voltages and simplifies power design in 3.3 V systems. The device incorporates internal VPP generation, so no external high-voltage source is required during byte-program or erase operations. SST39LF010-55-4I-WHE is not rated for operation below 3.0 V or above 3.6 V.
Does SST39LF010-55-4I-WHE support sector-erase functionality?
Yes, SST39LF010-55-4I-WHE supports uniform 4 KB sector-erase with a typical time of 18 ms. Each of the 32 sectors can be erased independently using a six-byte command sequence (5555H/AAH → 2AAAH/55H → 5555H/80H → 5555H/AAH → 2AAAH/55H → SAX/30H), where SAX is the sector address derived from A16–A12. This enables selective firmware updates without disturbing bootloader or configuration data stored in other sectors. SST39LF010-55-4I-WHE does not support block-erase or page-erase modes.
How is write completion detected on SST39LF010-55-4I-WHE?
SST39LF010-55-4I-WHE provides two hardware-supported methods: Data# Polling (DQ7) and Toggle Bit (DQ6). After initiating a byte-program or erase command, software reads DQ7 to detect complement-to-true data transition, or monitors DQ6 for cessation of toggling. Both methods become valid after the fourth (program) or sixth (erase) WE# pulse. SST39LF010-55-4I-WHE requires no external polling timer-status is determined solely through these dedicated output bits.
Is SST39LF010-55-4I-WHE pin-compatible with SST39VF010 variants?
No, SST39LF010-55-4I-WHE is not pin-compatible with SST39VF010 variants despite identical pin count and JEDEC x8 layout. The LF series requires 3.0–3.6 V for write operations, while VF series operates down to 2.7 V; their AC timing specifications differ (55 ns vs. 70 ns), and the industrial temperature rating (–40°C to +85°C) of SST39LF010-55-4I-WHE is not shared by commercial VF variants. Substitution would require validation of voltage margins, timing closure, and thermal derating.
What package type is used for SST39LF010-55-4I-WHE?
SST39LF010-55-4I-WHE is supplied in a 32-lead PLCC (Plastic Leaded Chip Carrier) package, identified by the "WHE" suffix. This surface-mount package measures 11.43 mm × 13.97 mm, features gull-wing leads, and is RoHS-compliant. It is distinct from the 32-lead TSOP variant (e.g., "WH" suffix) and requires specific land patterns and reflow profiles-particularly noting that certain Pb-containing PLCC variants are rated for 240°C, while SST39LF010-55-4I-WHE supports 260°C for 10 seconds.
SST39LF010-55-4I-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:
- 55 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
SST39LF010-55-4I-WHE FAQ
1.How can I place an order for SST39LF010-55-4I-WHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF010-55-4I-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 SST39LF010-55-4I-WHE reliable?
The price and inventory of SST39LF010-55-4I-WHE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF010-55-4I-WHE is usually 5 days.
3.What payment methods are accepted for SST39LF010-55-4I-WHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF010-55-4I-WHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF010-55-4I-WHE?
SST39LF010-55-4I-WHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF010-55-4I-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 SST39LF010-55-4I-WHE?
For technical support, including SST39LF010-55-4I-WHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF010-55-4I-WHE requirements.
6.How does Aetrix verify that SST39LF010-55-4I-WHE is sourced from the original manufacturer or authorized distributors?
All SST39LF010-55-4I-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 SST39LF010-55-4I-WHE meets industry standards.
7.What is the process for return or replacement of SST39LF010-55-4I-WHE?
All SST39LF010-55-4I-WHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF010-55-4I-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 SST39LF010-55-4I-WHE part is unused and in its original packaging.
Return procedure for SST39LF010-55-4I-WHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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