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Microchip Technology SST39LF801C-55-4C-EKE-T
- Part No.:
- SST39LF801C-55-4C-EKE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
SST39LF801C-55-4C-EKE-T.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,868
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Product details
Overview
SST39LF801C-55-4C-EKE-T from Microchip Technology is a 8 Mbit (512K × 16) low-voltage CMOS Multi-Purpose Flash Plus memory IC with 55 ns read access time, 3.0–3.6 V operating voltage, and bottom-boot block architecture protecting the lowest 8 KWord (00000H–01FFFH). It delivers 100,000 program/erase cycles, >100 years data retention, and supports sector/block/chip erase, erase-suspend/resume, and hardware write protection via WP#.
For engineers reviewing the SST39LF801C-55-4C-EKE-T datasheet, SST39LF801C-55-4C-EKE-T pinout, SST39LF801C-55-4C-EKE-T application, or SST39LF801C-55-4C-EKE-T equivalent, key selection considerations include boot-block configuration (bottom), TSOP-48 package compatibility, JEDEC-standard x16 interface timing, and SuperFlash® energy efficiency in embedded firmware storage.
Technical Context
This device implements SST's proprietary SuperFlash® technology with split-gate cells and thick-oxide tunneling injectors, enabling fixed erase/program times independent of cycle count-eliminating software de-rating. Its command-set architecture follows JEDEC-standard x16 flash protocols, supporting three-byte software data protection for word-program and six-byte sequences for sector/block/chip erase.
The SST39LF801C-55-4C-EKE-T integrates hardware block protection on the bottom 8 KWord, RY/BY# open-drain status signaling with external pull-up, latched address/data I/O, and dual status detection (DQ6 toggle bit + DQ7 data# polling) for asynchronous write completion monitoring without CPU polling overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16); supports 16-bit parallel bus interface with full address/data multiplexing not required. |
| Read Access Time | 55 ns (max); enables direct connection to 16-bit microcontrollers running at ≤18 MHz without wait states. |
| Supply Voltage | 3.0–3.6 V; compatible with standard 3.3 V logic systems and eliminates need for separate VPP programming voltage. |
| Endurance | 100,000 program/erase cycles (typical); sufficient for field firmware updates over 10+ years in industrial control applications. |
| Data Retention | >100 years (typical); ensures long-term reliability in unpowered storage of calibration data or boot code. |
| Erase Architecture | Uniform 2 KWord sectors + flexible blocks (fifteen 32 KWord, one 16 KWord, two 4 KWord, one 8 KWord); allows granular firmware partitioning. |
| Write Protection | Hardware bottom-boot block protection (00000H–01FFFH) activated by grounding WP#; prevents accidental overwrite of bootloader. |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, standard JEDEC x16 flash footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus (A0–A18) selects 512K words; AMS = A18 for sector/block addressing per JEDEC command protocol. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; outputs valid data during read, accepts program data during write; tri-stated when CE# or OE# high. |
| CE# | Chip Enable | Active-low chip select; device enters standby (3 µA) when high; required low for all write operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; must be low with CE# for valid read access. |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling/rising edges per JEDEC command sequence timing. |
| WP# | Write Protect | Active-low hardware lock for bottom 8 KWord boot block; floating = internally pulled high = unprotected mode. |
| RST# | Reset | Active-low hardware reset; forces return to read mode and aborts in-progress erase/program; requires TRP pulse width. |
| RY/BY# | Ready/Busy# | Open-drain status indicator; low = active erase/program; requires 10–100 kΩ pull-up to VDD for high-Z detection. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell design enables fixed 18 ms sector/block erase and 7 µs word-program times across full lifecycle-no software timing adjustment needed. |
| Erase-Suspend/Resume | Allows temporary halt of background erase to read/program non-suspended sectors-critical for real-time firmware update without system freeze. |
| Security ID Space | Factory-programmed 128-bit ID + user-programmable 128-word space; locked after programming to prevent tampering of device identity or license keys. |
| Auto Low Power Mode | Reduces active read current from 5 mA to 3 µA after valid read access-cuts power by >99% during idle polling in battery-backed systems. |
| JEDEC Compliance | Fully conforms to JEDEC standard pinouts and command sets (e.g., 555H/AAH/2AAH/55H sequences), ensuring drop-in compatibility with existing x16 flash designs. |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation environments with wide temperature ranges and long service life requirements. IC Role / Device Role / Timing Role: Nonvolatile program memory holding boot code and application firmware; accessed via 16-bit parallel bus during cold start and field upgrade. Use Value: Bottom-boot protection prevents corruption of critical bootloader during remote firmware patching; 100-year retention ensures integrity across 15+ year product lifecycles. | Use Scenario: Hosting certified bootloader and safety-critical initialization routines in FDA-regulated diagnostic imaging equipment requiring traceable, immutable startup code. IC Role / Device Role / Timing Role: Primary boot memory mapped to processor reset vector; provides deterministic 55 ns read access for sub-100 µs system initialization. Use Value: Hardware WP# lock on bottom 8 KWord guarantees bootloader immutability; Security ID enables cryptographic binding of firmware to specific hardware units. |
| Telecom Base Station Configuration | Automotive Infotainment Update Storage |
Use Scenario: Storing radio parameter tables, calibration coefficients, and regulatory compliance profiles in LTE/5G small cell base stations subject to frequent carrier-specific reconfiguration. IC Role / Device Role / Timing Role: Field-updatable configuration memory accessed via microcontroller's memory-mapped I/O; erased/rewritten per sector during OTA updates. Use Value: Uniform 2 KWord sectors allow atomic update of individual radio bands without disturbing adjacent parameters; erase-suspend enables concurrent status reporting during long erase cycles. | Use Scenario: Holding infotainment OS kernel, UI assets, and map data in automotive head units requiring secure, incremental over-the-air (OTA) updates under ASIL-B constraints. IC Role / Device Role / Timing Role: Dual-bank firmware storage where SST39LF801C-55-4C-EKE-T holds active image while secondary bank receives update; switched on reboot. Use Value: 100,000-cycle endurance supports 5+ years of monthly OTA updates; bottom-boot architecture isolates bootloader from update-related corruption risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF801C-70-4C-EKE | Higher 2.7–3.6 V supply range; slower 70 ns read access; same 512K×16 density and bottom-boot layout. | Targeted at mixed-voltage systems (e.g., legacy 2.7 V rails); less suitable for high-speed 3.3 V microcontrollers requiring ≤55 ns timing. | Select when board already uses 2.7 V supply or when timing margin allows relaxed access time. |
| MX29LV800CTTC-70G | Same 8 Mbit x16, bottom-boot, 70 ns access; requires 3.0–3.6 V; lacks erase-suspend and auto low-power mode. | No background erase interruption capability; higher active current (15 mA vs. 5 mA) limits use in power-constrained portable medical devices. | Choose for cost-sensitive designs where erase-suspend and ultra-low standby are non-critical. |
Compared with SST39VF801C-70-4C-EKE and MX29LV800CTTC-70G, the SST39LF801C-55-4C-EKE-T offers superior speed (55 ns), lower active power (5 mA), and unique erase-suspend functionality-making it optimal for real-time embedded systems requiring deterministic firmware updates without system interruption.
Availability
SST39LF801C-55-4C-EKE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader, telecom base station configuration, and automotive infotainment update storage requiring stable component supply across extended production lifecycles.
Supply support for SST39LF801C-55-4C-EKE-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 is a global semiconductor company delivering microcontrollers, analog, FPGA, and memory solutions with emphasis on reliability, longevity, and embedded system integration.
The SST39LF801C-55-4C-EKE-T belongs to Microchip's SST SuperFlash® family, engineered specifically for cost-effective, high-reliability firmware and configuration storage in industrial, medical, and communications equipment where long-term data integrity and field-upgrade capability are mandatory.
FAQ
What is the exact memory organization and boot-block configuration of SST39LF801C-55-4C-EKE-T?
The SST39LF801C-55-4C-EKE-T is organized as 512K × 16 (8 Mbit), with bottom-boot block architecture protecting the lowest 8 KWord (address range 00000H–01FFFH). This matches Table 4 and Table 2 in DS25041A, confirming hardware write protection applies exclusively to that region when WP# is grounded. The device uses A0–A18 for full addressing, and AMS = A18 per JEDEC command protocol.
Does SST39LF801C-55-4C-EKE-T support erase-suspend functionality, and how is it implemented?
Yes, SST39LF801C-55-4C-EKE-T supports erase-suspend/resume via the B0H command (page 8, DS25041A). Issuing B0H temporarily halts an ongoing sector or block erase, allowing reads from non-suspended locations or programming of unprotected sectors. Resume uses 30H command. This enables real-time responsiveness during long erase operations-critical for systems requiring status reporting or partial updates without freezing.
What are the valid supply voltage and power consumption specifications for SST39LF801C-55-4C-EKE-T?
SST39LF801C-55-4C-EKE-T operates at 3.0–3.6 V (DS25041A, page 1). Typical active current is 5 mA at 5 MHz, standby current is 3 µA, and auto low-power mode reduces active read current to 3 µA after access (page 1, Features). These values are measured under specified conditions and reflect actual design impact: 3 µA standby enables multi-year battery operation in maintenance-free edge sensors.
How does hardware write protection work on SST39LF801C-55-4C-EKE-T, and what happens if WP# is left floating?
Hardware write protection on SST39LF801C-55-4C-EKE-T locks the bottom 8 KWord boot block (00000H–01FFFH) when WP# is driven low (page 10, DS25041A). If WP# is floating, an internal pull-up holds it high, disabling protection and permitting full erase/program access. This behavior is explicitly documented in the Hardware Block Protection section and confirmed in Table 4 for SST39LF801C variants.
What command sequences are required to perform word-program and sector-erase on SST39LF801C-55-4C-EKE-T?
Word-program requires the three-byte sequence: 555H/AAH → 2AAH/55H → 555H/A0H, followed by address and data (Table 7, DS25041A). Sector-erase uses six bytes: 555H/AAH → 2AAH/55H → 555H/80H → 555H/AAH → 2AAH/55H → SA/50H, where SA is sector address on AMS–A11. Both sequences rely on WE#/CE# edge timing per JEDEC standard.
SST39LF801C-55-4C-EKE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 8Mbit
- Memory Organization:
- 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- 55 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
SST39LF801C-55-4C-EKE-T FAQ
1.How can I place an order for SST39LF801C-55-4C-EKE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF801C-55-4C-EKE-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 SST39LF801C-55-4C-EKE-T reliable?
The price and inventory of SST39LF801C-55-4C-EKE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF801C-55-4C-EKE-T is usually 5 days.
3.What payment methods are accepted for SST39LF801C-55-4C-EKE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF801C-55-4C-EKE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF801C-55-4C-EKE-T?
SST39LF801C-55-4C-EKE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF801C-55-4C-EKE-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 SST39LF801C-55-4C-EKE-T?
For technical support, including SST39LF801C-55-4C-EKE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF801C-55-4C-EKE-T requirements.
6.How does Aetrix verify that SST39LF801C-55-4C-EKE-T is sourced from the original manufacturer or authorized distributors?
All SST39LF801C-55-4C-EKE-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 SST39LF801C-55-4C-EKE-T meets industry standards.
7.What is the process for return or replacement of SST39LF801C-55-4C-EKE-T?
All SST39LF801C-55-4C-EKE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF801C-55-4C-EKE-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 SST39LF801C-55-4C-EKE-T part is unused and in its original packaging.
Return procedure for SST39LF801C-55-4C-EKE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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