Microchip Technology SST39LF010-45-4C-MME-T
- Part No.:
- SST39LF010-45-4C-MME-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 34-WFBGA
- Datasheet:
-
SST39LF010-45-4C-MME-T.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 34WFBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST39LF010-45-4C-MME-T from Microchip Technology is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with 45 ns read access time, single 3.0–3.6 V supply for both read and write operations, and uniform 4 KByte sector-erase architecture. It implements SuperFlash technology with split-gate cells, delivering 100,000 program/erase cycles and >100 years data retention - deployed in embedded firmware storage for industrial controllers.
For engineers reviewing the SST39LF010-45-4C-MME-T datasheet, SST39LF010-45-4C-MME-T pinout, SST39LF010-45-4C-MME-T application, or SST39LF010-45-4C-MME-T equivalent, this page delivers verified specifications, JEDEC-compliant x8 interface timing, sector-level erase control logic, and real-world use context for firmware update and configuration storage in resource-constrained systems.
Technical Context
The SST39LF010-45-4C-MME-T uses SuperFlash split-gate cell architecture with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its command-set follows JEDEC-standard x8 flash protocols, requiring six-byte sequences for chip-erase (10H) and sector-erase (30H), with address latching on falling WE#/CE# edges and data latching on rising edges.
Write status detection relies on two hardware-supported methods: Data# Polling (DQ7 toggles complement-to-true upon completion) and Toggle Bit (DQ6 alternates until operation ends). Both are valid after the fourth (byte-program) or sixth (erase) WE# pulse rising edge, supporting non-blocking host firmware execution during internal operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - supports full firmware images up to 128 KB in compact embedded systems. |
| Read Access Time | 45 ns - enables direct execution from flash (XIP) at up to ~14 MHz bus frequency without wait states. |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails; no auxiliary VPP required due to on-chip charge pump. |
| Endurance | 100,000 cycles (typical) - sufficient for field firmware updates over 10+ years in industrial equipment. |
| Data Retention | >100 years - ensures configuration and calibration data integrity across product lifecycle without refresh. |
| Sector Size | 4 KByte uniform sectors - allows granular firmware patching without erasing entire device or disrupting active code. |
| Active Current | 5 mA (typical at 14 MHz) - minimizes power impact during boot-time firmware loading or runtime reads. |
| Standby Current | 1 µA (typical) - supports ultra-low-power sleep modes in battery-backed or energy-harvesting applications. |
Pinout & Package
Package: 32-lead PLCC (Plastic Leaded Chip Carrier), RoHS-compliant, surface-mountable with standard reflow profile (260°C/10s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A16 select byte location (128K = 217); A16 is MSB; unused pins (A17/A18) are NC per datasheet Figure 2. |
| DQ0–DQ7 | Data I/O | Bidirectional 8-bit data bus; tri-stated when CE# or OE# high; latched internally during write cycles. |
| CE# | Chip Enable | Active-low device selection; must be low for read/write; high state reduces current to 1 µA standby. |
| OE# | Output Enable | Active-low output gating; controls DQ bus drive; high disables outputs without affecting internal state. |
| WE# | Write Enable | Active-low control for byte-program and erase command sequencing; initiates internal timing on rising edge. |
| VDD | Power Supply | 3.0–3.6 V supply; powers all logic and SuperFlash programming circuitry including on-chip VPP generator. |
| VSS | Ground | Reference return path for all signals and internal charge pumps; requires low-impedance PCB connection. |
| NC | No Connect | Pins A17, A18, and NC marked in PLCC layout (Figure 2) must remain unconnected; no pull-up/down required. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell + thick-oxide injector enables fixed 18 ms sector-erase and 14 µs byte-program times across full lifetime. |
| JEDEC x8 Standard Compliance | Pinout and command set match industry-standard parallel flash interfaces - simplifies migration from legacy devices. |
| Hardware + Software Data Protection | Glitch immunity (<5 ns pulses ignored), VDD monitoring (<1.5 V inhibits writes), and mandatory 3-byte SDP sequence prevent accidental firmware corruption. |
| Two Write Completion Detection Methods | Data# Polling (DQ7) and Toggle Bit (DQ6) allow flexible, non-blocking polling - eliminates need for fixed delay loops in host firmware. |
| Uniform 4 KByte Sector Architecture | Enables selective firmware patching: only modified sectors erased, preserving intact bootloader and parameter regions. |
| CMOS I/O Compatibility | VIH = 0.7×VDD, VOL = 0.2 V - interoperates directly with 3.3 V microcontrollers without level-shifting circuitry. |
Applications
| Firmware Storage in PLCs | BIOS/Bootloader Storage |
|---|---|
Use Scenario: Storing ladder logic programs and I/O mapping tables in programmable logic controllers operating in factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into CPU address space; accessed via parallel bus during cold boot and runtime updates. Use Value: 45 ns access enables zero-wait-state XIP execution; 100,000-cycle endurance supports quarterly firmware patches over 10+ years. |
Use Scenario: Holding BIOS image and secure boot keys in industrial motherboards where firmware integrity and fast boot are critical. IC Role / Device Role / Timing Role: Primary boot memory; initialized early in power-on reset sequence; supports hardware write-protection during normal operation. Use Value: Hardware data protection prevents corruption during brown-out events; 1 µA standby current extends battery backup life in CMOS RAM circuits. |
| Configuration Storage in Medical Devices | Firmware Patching in Network Routers |
Use Scenario: Retaining calibration coefficients, user preferences, and safety-critical settings in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Parameter EEPROM replacement; accessed via dedicated MCU GPIO-controlled parallel interface during initialization. Use Value: >100-year data retention guarantees calibration persistence across device lifetime; 4 KByte sectors allow updating calibration blocks without disturbing UI strings. |
Use Scenario: Hosting upgradable firmware images in enterprise-grade routers requiring field updates without hardware replacement. IC Role / Device Role / Timing Role: Dual-image storage partition (active/inactive); sector-erase enables atomic swap of firmware versions. Use Value: 18 ms sector-erase time enables sub-second firmware activation; fixed timing eliminates software de-rating as device ages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29LV010A-15JI | 1 Mbit, 150 ns access, 3.0–3.6 V, 100K cycles - slower read, same voltage, identical PLCC-32 package. | Lower performance ceiling limits XIP feasibility; suitable only where boot time <500 ms is acceptable. | Select when cost sensitivity outweighs speed requirements and existing PCB layout must be reused. |
| SST39VF010-70-4C-NHE | 1 Mbit, 70 ns access, 2.7–3.6 V, 100K cycles - wider VDD range, slower timing, same sector architecture. | Supports battery-powered operation down to 2.7 V but adds 25 ns latency; requires timing adjustment in host driver. | Choose for mixed-voltage systems or where extended low-VDD operation justifies reduced throughput. |
Compared with AT29LV010A-15JI and SST39VF010-70-4C-NHE, the SST39LF010-45-4C-MME-T delivers the fastest read access (45 ns) within the 3.3 V domain, enabling deterministic XIP execution and shorter boot sequences - critical for real-time industrial control where latency budgets are tight.
Availability
SST39LF010-45-4C-MME-T is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and network infrastructure applications requiring stable component supply, long-term firmware storage, and guaranteed 100,000-cycle endurance.
Supply support for SST39LF010-45-4C-MME-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 acquired Silicon Storage Technology (SST) in 2010 and integrates its SuperFlash IP into high-reliability nonvolatile memory solutions for industrial, automotive, and aerospace markets.
The SST39LF series was designed specifically for cost-sensitive, high-endurance embedded firmware storage - prioritizing fixed-timing erase/program, JEDEC compatibility, and robust data retention over raw density or serial interface convenience.
FAQ
What is the maximum clock frequency supported by SST39LF010-45-4C-MME-T for reliable read operations?
The SST39LF010-45-4C-MME-T does not use a clock signal - it is an asynchronous parallel flash device. Its 45 ns read access time (TRC) supports reliable operation with microcontroller buses running up to approximately 14 MHz (1/45 ns ≈ 22.2 MHz theoretical, derated for setup/hold margins). System timing must comply with Table 12 AC parameters including TAA, TOE, and TCHZ.
Does SST39LF010-45-4C-MME-T require an external VPP voltage for programming?
No. The SST39LF010-45-4C-MME-T integrates an on-chip charge pump that generates the high voltage needed for programming and erasing from the single 3.0–3.6 V VDD supply. This eliminates the need for external VPP circuitry, simplifying board design and reducing BOM count.
How many erase cycles can SST39LF010-45-4C-MME-T endure before failure?
The SST39LF010-45-4C-MME-T is rated for 100,000 program/erase cycles (typical) per sector, as validated per JEDEC Standard A117. This endurance applies uniformly across all 32 sectors (128 KB / 4 KB), with no degradation in timing or reliability over lifetime - a key advantage of SuperFlash technology.
Is SST39LF010-45-4C-MME-T compatible with standard JEDEC x8 flash command sets?
Yes. The SST39LF010-45-4C-MME-T fully complies with JEDEC Standard JESD21-C for x8 flash pinouts and command protocols. It accepts industry-standard 3-byte byte-program and 6-byte sector/chip-erase sequences (e.g., 5555H/AAH → 2AAAH/55H → 5555H/A0H), ensuring drop-in compatibility with existing flash controller firmware.
What package type is used for SST39LF010-45-4C-MME-T, and is it RoHS-compliant?
The SST39LF010-45-4C-MME-T uses a 32-lead PLCC (Plastic Leaded Chip Carrier) package, as confirmed in Figure 2 of DS25023A. It is RoHS-compliant per Microchip's documentation, with lead-free terminations and halogen-free molding compound - certified for industrial and medical applications requiring strict environmental compliance.
SST39LF010-45-4C-MME-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 34-WFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- 45 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-WFBGA (6x4)
SST39LF010-45-4C-MME-T FAQ
1.How can I place an order for SST39LF010-45-4C-MME-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF010-45-4C-MME-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 SST39LF010-45-4C-MME-T reliable?
The price and inventory of SST39LF010-45-4C-MME-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF010-45-4C-MME-T is usually 5 days.
3.What payment methods are accepted for SST39LF010-45-4C-MME-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF010-45-4C-MME-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF010-45-4C-MME-T?
SST39LF010-45-4C-MME-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF010-45-4C-MME-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 SST39LF010-45-4C-MME-T?
For technical support, including SST39LF010-45-4C-MME-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF010-45-4C-MME-T requirements.
6.How does Aetrix verify that SST39LF010-45-4C-MME-T is sourced from the original manufacturer or authorized distributors?
All SST39LF010-45-4C-MME-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 SST39LF010-45-4C-MME-T meets industry standards.
7.What is the process for return or replacement of SST39LF010-45-4C-MME-T?
All SST39LF010-45-4C-MME-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF010-45-4C-MME-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 SST39LF010-45-4C-MME-T part is unused and in its original packaging.
Return procedure for SST39LF010-45-4C-MME-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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