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Microchip Technology SST39LF010-55-4C-WHE-T
- Part No.:
- SST39LF010-55-4C-WHE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39LF010-55-4C-WHE-T.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,645
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Product details
Overview
SST39LF010-55-4C-WHE-T 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, operating at 3.0–3.6 V, and packaged in a 32-lead TSOP (8 mm × 14 mm). It delivers byte-program capability, sector-erase functionality, and JEDEC-standard x8 pinout for embedded firmware storage in microcontroller-based systems.
For engineers reviewing the SST39LF010-55-4C-WHE-T datasheet, SST39LF010-55-4C-WHE-T pinout, SST39LF010-55-4C-WHE-T application, or SST39LF010-55-4C-WHE-T equivalent, key selection criteria include its 55 ns read timing, 3.0–3.6 V single-supply operation, 4 KB uniform sector architecture, SuperFlash reliability (100,000 program/erase cycles), and RoHS-compliant TSOP packaging suitable for space-constrained industrial PCBs.
Technical Context
The SST39LF010-55-4C-WHE-T 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. It supports standard microprocessor bus interfacing via CE#, OE#, and WE# control signals with latched address/data inputs.
It uses JEDEC-standard command sets-including three-byte software data protection for byte-program and six-byte sequences for sector/chip-erase-and provides dual end-of-write detection via Data# Polling (DQ7) and Toggle Bit (DQ6), eliminating need for external wait-state logic in host systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8), directly replaces EPROMs and older parallel NOR flash in boot code storage |
| Read Access Time | 55 ns - enables direct execution from flash (XIP) in 14 MHz system buses without wait states |
| Supply Voltage | 3.0–3.6 V - compatible with 3.3 V logic rails; no separate VPP required due to internal charge pump |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over full product lifecycle |
| Data Retention | >100 years - ensures long-term integrity of stored configuration or calibration data |
| Sector Size | Uniform 4 KB sectors - allows granular firmware patching without full chip erase |
| Standby Current | 1 µA typical - critical for low-power battery-backed applications and sleep-mode operation |
Pinout & Package
Package: 32-lead TSOP (8 mm × 14 mm), RoHS-compliant, surface-mountable with standard reflow profile (260°C/10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | A0–A16 select 128K bytes; A16 is MSB for SST39LF010 (no A17/A18 used) |
| DQ0–DQ7 | Data Input/Output | Bi-directional 8-bit data bus; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low device select; disables outputs and reduces current to 1 µA in standby |
| OE# | Output Enable | Active-low output gate; controls data bus visibility without affecting internal state |
| WE# | Write Enable | Active-low control for byte-program and erase command latching |
| VDD | Power Supply | 3.0–3.6 V supply; powers internal charge pump for erase/program operations |
| VSS | Ground | Reference return path for all I/O and core logic |
| NC | No Connection | Pins 12, 13, 28, 29 - unconnected; must be left floating or tied to ground per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cells with thick-oxide injector enable fixed 18 ms sector-erase and 70 ms chip-erase times across full endurance life |
| Hardware + Software Data Protection | Glitch immunity (<5 ns pulses rejected), VDD power-up/down detection, and mandatory 3-byte unlock sequence prevent accidental writes |
| End-of-Write Detection | DQ7 (Data# Polling) and DQ6 (Toggle Bit) provide software-controlled status polling without external hardware |
| JEDEC x8 Standard Compliance | Pinout and command set match industry-standard parallel NOR flash, enabling drop-in replacement in legacy designs |
| Low-Energy Erase/Program | Reduced current draw and shorter timing vs. conventional flash lowers total energy per operation by >40% (per datasheet analysis) |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing boot loader and application firmware in programmable logic controllers requiring field updates via service port. IC Role / Device Role / Timing Role: Nonvolatile parallel NOR flash providing XIP-capable 55 ns read access for deterministic startup and real-time task loading. Use Value: 100,000-cycle endurance supports 10+ years of scheduled firmware revisions; 4 KB sectors allow patch deployment without full reflash downtime. | Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory audit logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-power configuration memory retaining data >100 years with 1 µA standby current during battery backup mode. Use Value: RoHS-compliant TSOP package fits compact PCBs; hardware/software write protection meets IEC 62304 safety requirements for data integrity. |
| Automotive Body Control Module | Networking Equipment Boot Image |
Use Scenario: Storing lighting control logic and CAN node configuration in 12 V automotive subsystems with wide-temperature operation. IC Role / Device Role / Timing Role: 3.0–3.6 V single-supply flash interfacing directly with 3.3 V microcontroller buses under cold-crank (low-VDD) conditions. Use Value: VDD power-up/down detection prevents corruption during ignition cycling; -40°C to +85°C industrial grade rating satisfies AEC-Q100 stress requirements. | Use Scenario: Hosting primary bootloader and fail-safe recovery image in enterprise switches and routers with dual-image update capability. IC Role / Device Role / Timing Role: Parallel interface flash enabling fast boot from reset vector with deterministic 55 ns access to first instruction fetch. Use Value: Sector-erase granularity permits atomic firmware swap between active/inactive banks; JEDEC compatibility simplifies BOM consolidation across platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX29LV160ETTI-70G | 16 Mbit density, 70 ns access, 2.7–3.6 V supply; requires different sector map and command set | Higher density suits larger boot images but lacks 55 ns timing for latency-critical XIP | Select only if board layout accommodates larger 48-pin TSOP and firmware supports MXIC command protocol |
| EN29LV010 | 1 Mbit, 70 ns, 3.0–3.6 V; no SuperFlash reliability enhancements; 10,000-cycle endurance rating | Lower endurance and slower timing limit use in frequently updated systems | Acceptable for cost-sensitive, static firmware deployments where 100,000-cycle lifetime is not required |
Compared with MX29LV160ETTI-70G and EN29LV010, the SST39LF010-55-4C-WHE-T uniquely combines 55 ns speed, 100,000-cycle endurance, and true JEDEC x8 compatibility-making it optimal for legacy-compatible, latency-sensitive, and long-life embedded firmware storage where pinout and timing margins are constrained.
Availability
SST39LF010-55-4C-WHE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, and automotive body control module applications requiring stable component supply and long-term obsolescence management.
Supply support for SST39LF010-55-4C-WHE-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 2016 and maintains the SuperFlash portfolio for high-reliability embedded nonvolatile memory solutions.
The SST39LF series was designed specifically for cost-effective, pin-compatible replacement of EPROMs and early NOR flash in microcontroller boot memory applications-emphasizing robustness, low-voltage operation, and JEDEC interoperability.
FAQ
What is the maximum clock frequency supported by SST39LF010-55-4C-WHE-T?
The SST39LF010-55-4C-WHE-T does not use a clock signal-it operates asynchronously with CE#, OE#, and WE# control lines. Its 55 ns read access time supports reliable operation with microcontrollers running up to 14 MHz bus frequencies without wait states. The device's timing is defined by setup/hold parameters (e.g., TAA = 55 ns, TOE = 30 ns), not a clock domain. SST39LF010-55-4C-WHE-T integrates no internal oscillator or PLL and relies entirely on external bus timing compliance.
Does SST39LF010-55-4C-WHE-T support sector-erase only, or also chip-erase?
SST39LF010-55-4C-WHE-T supports both sector-erase and chip-erase operations. Sector-erase targets uniform 4 KB blocks using a six-byte command sequence with address and 30H command; chip-erase clears the full 128K × 8 array using a six-byte sequence ending with 10H. Typical sector-erase time is 18 ms and chip-erase is 70 ms-both guaranteed and fixed across the full endurance life due to SuperFlash technology. SST39LF010-55-4C-WHE-T does not support block-erase or partial-array erase beyond these two modes.
Is SST39LF010-55-4C-WHE-T compatible with 5 V microcontrollers?
No, SST39LF010-55-4C-WHE-T is strictly a 3.0–3.6 V device and is not 5 V tolerant. Its absolute maximum input voltage is VDD + 0.5 V, and VIH is specified as 0.7×VDD (min 2.1 V at 3.0 V). Direct connection to 5 V logic will damage the device. Level translation (e.g., TXB0108 or discrete MOSFET buffers) is required for interfacing with 5 V microcontrollers. SST39LF010-55-4C-WHE-T shares no pin-level compatibility with 5 V flash families like AT29C010.
How is write protection implemented on SST39LF010-55-4C-WHE-T?
SST39LF010-55-4C-WHE-T implements dual-layer write protection: hardware-level noise/glitch rejection (ignores WE#/CE# pulses <5 ns), VDD power-up/down detection (inhibits writes below 1.5 V), and software-level JEDEC-compliant three-byte unlock sequence (5555H/AAH → 2AAAH/55H → 5555H/A0H) for byte-program. Sector/chip-erase requires a six-byte sequence. SST39LF010-55-4C-WHE-T ships with software data protection permanently enabled-no factory default unprotected state exists.
What package variant does SST39LF010-55-4C-WHE-T use, and is it lead-free?
SST39LF010-55-4C-WHE-T uses the 32-lead TSOP (8 mm × 14 mm) package with "WHE" suffix denoting this variant; it is RoHS-compliant and lead-free per Microchip's DS25023B datasheet. The "-4C" indicates commercial temperature range (0°C to +70°C), and "-55" specifies 55 ns access time. This TSOP variant is distinct from the PLCC option (e.g., SST39LF010-55-4C-PHE-T) and requires dedicated land pattern per Microchip's AN1234 layout guidelines.
SST39LF010-55-4C-WHE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-TFSOP (0.488", 12.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
SST39LF010-55-4C-WHE-T FAQ
1.How can I place an order for SST39LF010-55-4C-WHE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39LF010-55-4C-WHE-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 SST39LF010-55-4C-WHE-T reliable?
The price and inventory of SST39LF010-55-4C-WHE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39LF010-55-4C-WHE-T is usually 5 days.
3.What payment methods are accepted for SST39LF010-55-4C-WHE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39LF010-55-4C-WHE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39LF010-55-4C-WHE-T?
SST39LF010-55-4C-WHE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39LF010-55-4C-WHE-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 SST39LF010-55-4C-WHE-T?
For technical support, including SST39LF010-55-4C-WHE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39LF010-55-4C-WHE-T requirements.
6.How does Aetrix verify that SST39LF010-55-4C-WHE-T is sourced from the original manufacturer or authorized distributors?
All SST39LF010-55-4C-WHE-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 SST39LF010-55-4C-WHE-T meets industry standards.
7.What is the process for return or replacement of SST39LF010-55-4C-WHE-T?
All SST39LF010-55-4C-WHE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST39LF010-55-4C-WHE-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 SST39LF010-55-4C-WHE-T part is unused and in its original packaging.
Return procedure for SST39LF010-55-4C-WHE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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