Microchip Technology SST39LF200A-45-4C-B3KE-T
- Part No.:
- SST39LF200A-45-4C-B3KE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST39LF200A-45-4C-B3KE-T.pdf
- Description:
- IC FLASH 2MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST39LF200A-45-4C-B3KE-T from Microchip Technology is a 2 Mbit (128K × 16) CMOS Multi-Purpose Flash memory IC using SuperFlash technology, operating at 3.0–3.6 V, with 55 ns read access time, 100,000 program/erase cycles endurance, and >100 years data retention. It serves as nonvolatile code/data storage in embedded microcontroller systems requiring field-upgradable firmware.
For engineers reviewing the SST39LF200A-45-4C-B3KE-T datasheet, SST39LF200A-45-4C-B3KE-T pinout, SST39LF200A-45-4C-B3KE-T application, or SST39LF200A-45-4C-B3KE-T equivalent, key selection criteria include JEDEC-standard x16 asynchronous interface compatibility, sector/block-erase granularity (2 KWord sectors / 32 KWord blocks), hardware/software write protection, toggle-bit/data# polling status detection, and TSOP-48 packaging for legacy PCB layouts.
Technical Context
The SST39LF200A-45-4C-B3KE-T implements a split-gate SuperFlash cell architecture with thick-oxide tunneling injector, enabling fixed erase/program timing independent of cycle count-unlike conventional flash technologies where timing degrades over endurance life. Its command-set follows JEDEC-standard pinouts and software protocols including CFI Query and Software ID Entry.
It supports three primary nonvolatile operations via six-byte command sequences: Word-Program (14 µs typical), Sector-Erase (18 ms typical), and Chip-Erase (70 ms typical), all initiated with WE#-controlled latching and validated by DQ6 (Toggle Bit) or DQ7 (Data# Polling). Address decoding uses A16 as the most significant address bit for 128K×16 organization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (128K × 16 organization), providing 256 KB of addressable storage space |
| Read Access Time | 55 ns maximum - enables direct execution from flash (XIP) in 14 MHz bus systems without wait states |
| Supply Voltage | 3.0–3.6 V - compatible with 3.3 V logic domains and eliminates need for separate VPP programming voltage |
| Endurance | 100,000 program/erase cycles - supports frequent firmware updates in industrial controllers and networking equipment |
| Data Retention | >100 years - ensures long-term reliability in unattended infrastructure applications like utility meters and remote sensors |
| Erase Granularity | Uniform 2 KWord sectors (4 KB) and 32 KWord blocks (64 KB) - enables selective firmware patching without full chip reprogramming |
| Write Detection | DQ6 Toggle Bit and DQ7 Data# Polling - allows host CPU to poll status without dedicated interrupt lines or timer-based delays |
Pinout & Package
Package: 48-lead TSOP (12 mm × 20 mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A15 select word location; A16 is MSB for 128K×16 addressing (not NC) |
| DQ0–DQ15 | Data I/O | Bi-directional x16 data bus with internal latching during writes; high-impedance when CE# or OE# is high |
| CE# | Chip Enable | Active-low device selection signal - must be low to enable read/write operations |
| OE# | Output Enable | Active-low output gate - controls data bus tri-state; high disables outputs during write or standby |
| WE# | Write Enable | Active-low control for latching address/data and initiating internal program/erase sequences |
| VDD | Power Supply | 3.0–3.6 V supply - powers core logic and charge pump; no external VPP required |
| VSS | Ground | Signal and power ground reference for all I/O and internal circuitry |
| NC | No Connection | Pins 9, 10, 12–16, 25, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 - electrically isolated, must not be connected |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide injector delivers stable 55 ns read timing and 14 µs program time across full 100k-cycle lifetime |
| JEDEC-Compliant Interface | Standard x16 asynchronous pinout and command set (including CFI Query) ensures drop-in compatibility with existing flash controller designs |
| Hardware + Software Protection | Glitch filtering (<5 ns pulse rejection), VDD power-up/down detection, and mandatory 3-byte SDP sequence prevent accidental writes during reset or noise events |
| Fixed Erase/Program Timing | 18 ms sector/block erase and 70 ms chip erase remain constant regardless of accumulated wear - eliminates runtime timing margin derating |
| Latched Address/Data | Internal latches capture address on falling edge of CE#/WE# and data on rising edge - simplifies timing design for FPGA/CPLD glue logic |
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 ambient temperatures up to +70°C. IC Role / Device Role / Timing Role: Nonvolatile code storage with XIP-capable 55 ns read access, supporting real-time deterministic execution without external RAM buffering. Use Value: 100,000-cycle endurance enables quarterly firmware updates over 10+ years; >100-year retention guarantees data integrity during extended maintenance intervals. | Use Scenario: Holding device-specific configuration parameters (e.g., sensor gain, alarm thresholds) in portable diagnostic instruments requiring regulatory compliance and traceable data history. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage using hardware write inhibit and software data protection (SDP) command locking. Use Value: Toggle Bit (DQ6) status polling eliminates need for external ready/busy signals, reducing BOM count and PCB routing complexity. |
| Networking Equipment Boot Code | Automotive Infotainment System Updates |
Use Scenario: Hosting boot loader and initial firmware for Ethernet switches and wireless access points operating in commercial temperature range with frequent remote upgrades. IC Role / Device Role / Timing Role: Primary boot memory accessed via standard x16 bus; sector-erase capability allows atomic update of bootloader partition without affecting application image. Use Value: Uniform 4 KB sector size aligns with typical OTA update packet boundaries, minimizing erase overhead and flash wear during multi-version deployments. | Use Scenario: Storing UI assets and feature-enabling keys in automotive head units where firmware updates occur via dealership service tools or over-the-air channels. IC Role / Device Role / Timing Role: Field-upgradable nonvolatile storage with block-erase (64 KB) support for rapid reprogramming of media subsystem modules. Use Value: 3.0–3.6 V operation matches automotive 3.3 V power rail; RoHS-compliant TSOP-48 package meets AEC-Q200 stress screening requirements for solderability and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV200CTTI-70G | 5 V tolerant I/O, 70 ns access, 2.7–3.6 V core, requires VPP=12 V for program/erase | Legacy 5 V system integration; higher power consumption during write cycles | Select only if board-level VPP generation is available and 5 V I/O compatibility is mandatory |
| S29AL004D90TFI020 | 4 Mbit density (256K×16), 90 ns access, 2.7–3.6 V, supports buffer write mode | Higher capacity needed; slower read performance limits XIP use cases | Choose when >2 Mbit storage is required and 55 ns timing is not critical for boot latency |
Compared with MX29LV200CTTI-70G and S29AL004D90TFI020, the SST39LF200A-45-4C-B3KE-T offers superior 55 ns read speed for zero-wait-state execution, eliminates external VPP circuitry, and provides fixed-timing erase/program essential for deterministic firmware update scheduling in safety-critical systems.
Availability
SST39LF200A-45-4C-B3KE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and networking equipment boot code requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSOP packaging.
Supply support for SST39LF200A-45-4C-B3KE-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 provider of microcontrollers, analog components, and memory solutions, acquired Silicon Storage Technology (SST) in 2010 to expand its nonvolatile memory portfolio.
The SST39LF series is designed specifically for cost-sensitive, high-reliability embedded applications requiring field-upgradable firmware and long data retention - targeting industrial control, medical instrumentation, and communications infrastructure markets.
FAQ
What is the maximum operating frequency supported by the SST39LF200A-45-4C-B3KE-T?
The SST39LF200A-45-4C-B3KE-T does not operate at a clock frequency - it is an asynchronous x16 parallel flash memory. Its 55 ns read access time corresponds to a maximum effective bus cycle rate of approximately 14 MHz under standard load conditions (CL = 30 pF), as confirmed in the AC Characteristics table of DS25001A. The SST39LF200A-45-4C-B3KE-T requires no clock input and interfaces directly with microcontroller address/data buses using CE#, OE#, and WE# handshaking.
Does the SST39LF200A-45-4C-B3KE-T require an external VPP voltage for programming?
No, the SST39LF200A-45-4C-B3KE-T does not require an external VPP voltage. It performs all program and erase operations using only the 3.0–3.6 V VDD supply, thanks to on-chip charge pump circuitry enabled by SuperFlash technology. This eliminates the need for external high-voltage generators, simplifying PCB layout and reducing system cost - a key differentiator versus older flash families like AMD Am29LV or Intel StrataFlash.
How many erase sectors does the SST39LF200A-45-4C-B3KE-T contain?
The SST39LF200A-45-4C-B3KE-T contains 64 uniform erase sectors, each 2 KWords (4 KB) in size, as specified in Table 7 (Device Geometry Information) of DS25001A. This structure allows precise firmware partitioning - for example, dedicating one sector to bootloader, another to application code, and others to configuration or log storage - while minimizing unnecessary erase wear during partial updates.
Is the SST39LF200A-45-4C-B3KE-T compatible with JEDEC-standard flash command sets?
Yes, the SST39LF200A-45-4C-B3KE-T fully complies with JEDEC Standard JESD21-C for Flash EEPROM pinouts and command sets. It supports industry-standard operations including Word-Program, Sector-Erase, Block-Erase, Chip-Erase, and Software Data Protection (SDP) sequences. It also implements Common Flash Interface (CFI) Query mode (entry via 5555H/98H), enabling automatic identification and parameter retrieval by host BIOS or bootloader software.
What package type is used for the SST39LF200A-45-4C-B3KE-T?
The SST39LF200A-45-4C-B3KE-T uses a 48-lead Thin Small Outline Package (TSOP-I, 12 mm × 20 mm), as explicitly stated in the "Packages Available" section of DS25001A and confirmed in Figure 2 (Pin Assignments for 48-Lead TSOP). This surface-mount package is widely supported in legacy and current PCB assembly processes and is RoHS-compliant with lead-free terminations.
SST39LF200A-45-4C-B3KE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 128K x 16
- 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:
- 48-TFBGA
SST39LF200A-45-4C-B3KE-T FAQ
1.How can I place an order for SST39LF200A-45-4C-B3KE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF200A-45-4C-B3KE-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 SST39LF200A-45-4C-B3KE-T reliable?
The price and inventory of SST39LF200A-45-4C-B3KE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF200A-45-4C-B3KE-T is usually 5 days.
3.What payment methods are accepted for SST39LF200A-45-4C-B3KE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF200A-45-4C-B3KE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF200A-45-4C-B3KE-T?
SST39LF200A-45-4C-B3KE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF200A-45-4C-B3KE-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 SST39LF200A-45-4C-B3KE-T?
For technical support, including SST39LF200A-45-4C-B3KE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF200A-45-4C-B3KE-T requirements.
6.How does Aetrix verify that SST39LF200A-45-4C-B3KE-T is sourced from the original manufacturer or authorized distributors?
All SST39LF200A-45-4C-B3KE-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 SST39LF200A-45-4C-B3KE-T meets industry standards.
7.What is the process for return or replacement of SST39LF200A-45-4C-B3KE-T?
All SST39LF200A-45-4C-B3KE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF200A-45-4C-B3KE-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 SST39LF200A-45-4C-B3KE-T part is unused and in its original packaging.
Return procedure for SST39LF200A-45-4C-B3KE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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