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Microchip Technology SST39SF010A-70-4I-NHE
- Part No.:
- SST39SF010A-70-4I-NHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
SST39SF010A-70-4I-NHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:505
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Product details
Overview
SST39SF010A-70-4I-NHE from Microchip Technology is a 1-Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with 70 ns read access time, single 4.5V–5.5V supply operation, and uniform 4-Kbyte sector erase architecture. It delivers 100,000 program/erase cycles endurance, >100 years data retention, and supports TTL I/O compatibility for embedded firmware storage in industrial controllers and legacy BIOS systems.
For engineers reviewing the SST39SF010A-70-4I-NHE datasheet, SST39SF010A-70-4I-NHE pinout, SST39SF010A-70-4I-NHE application, or SST39SF010A-70-4I-NHE equivalent, this page provides verified pin functions, JEDEC-standard x8 flash command set compliance, sector-level erase timing (18 ms typical), byte-program timing (14 µs typical), and hardware/software data protection implementation details.
Technical Context
The SST39SF010A-70-4I-NHE implements SuperFlash® split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count-unlike conventional flash where timing degrades with wear. It uses standard microprocessor bus interface with CE#, OE#, and WE# control signals and latched address/data paths.
It supports three software-controlled operations: Byte Program (three-byte unlock + address/data), Sector Erase (six-byte unlock + sector address + 30H), and Chip Erase (six-byte unlock + 10H). End-of-write detection is implemented via Data# Polling (DQ7) and Toggle Bit (DQ6), both valid after the fourth (program) or sixth (erase) WE#/CE# pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8); occupies 128 KB address space in 8-bit parallel bus systems. |
| Read Access Time | 70 ns max; enables direct replacement of 70 ns EPROMs without wait-state insertion on 14 MHz bus systems. |
| Supply Voltage | 4.5 V–5.5 V; operates across full commercial/industrial voltage range without external regulators. |
| Endurance | 10,000 min / 100,000 typ cycles per sector; qualified per JEDEC A117 for long-term field reliability. |
| Data Retention | >100 years at +85°C; validated per JEDEC A103, supporting unattended industrial deployment. |
| Active Current | 25 mA max during read; enables low-power operation in battery-backed or energy-constrained systems. |
| Standby Current | 100 µA max (CMOS input); reduces quiescent power in sleep-mode applications. |
| Sector Size | 4 Kbytes uniform; allows granular firmware updates without erasing entire device. |
Pinout & Package
32-lead TSOP (Thin Small Outline Package) with 0.5 mm pitch; RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus (A0–A15); A16 is NC for SST39SF010A - defines 128K-word addressing limit. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; tri-stated when CE# or OE# high; latched during write cycles. |
| CE# | Chip Enable | Active-low chip select; device enters standby (100 µA) when high; required for all operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; high-Z when asserted high during read. |
| WE# | Write Enable | Active-low write strobe; initiates byte program, sector erase, and chip erase command sequences. |
| VDD | Power Supply | +4.5 V to +5.5 V supply; internal VPP generation eliminates need for external high-voltage programming supply. |
| VSS | Ground | Reference ground for all logic and memory array; decoupling capacitor required near pin. |
| NC (Pins 1, 30) | No Connection | Pin 1 and Pin 30 are unconnected for SST39SF010A; not used for address expansion (A17/A18 reserved for larger variants). |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Fixed 14 µs byte-program and 18 ms sector-erase times regardless of accumulated cycles - eliminates software derating. |
| JEDEC x8 Standard Compliance | Pinout and command set match industry-standard parallel flash devices, enabling drop-in replacement in existing designs. |
| Dual Write Completion Detection | Hardware-supported Data# Polling (DQ7) and Toggle Bit (DQ6) allow host CPU to poll asynchronously without timer overhead. |
| Hardware + Software Protection | Glitch immunity (<5 ns), VDD lockout (<2.5 V), and mandatory 3-byte unlock sequence prevent accidental writes during power transitions. |
| Uniform 4-Kbyte Sectors | 128 independent sectors enable selective firmware patching - critical for field-upgradable industrial firmware. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Memory |
|---|---|
Use Scenario: Storing configuration logic and ladder-code firmware in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped into microcontroller address space; accessed via 8-bit parallel bus with 70 ns timing constraints. Use Value: 100,000-cycle endurance and >100-year data retention ensure firmware integrity over 15+ year equipment lifecycles without recalibration or backup. |
Use Scenario: Replacing obsolete 27C010 EPROMs in AT/ATX motherboard BIOS chips requiring in-system reprogramming. IC Role / Device Role / Timing Role: x8 parallel boot memory with JEDEC-compatible pinout and command set; supports standard BIOS update utilities. Use Value: Single 5 V supply and 70 ns access eliminate need for UV-erasers or external VPP generators - enabling field BIOS upgrades via software. |
| Medical Device Bootloader Storage | Telecom Line Card Configuration |
Use Scenario: Holding bootloader code and calibration tables in Class II medical instruments subject to IEC 60601-1 safety certification. IC Role / Device Role / Timing Role: Secure, write-protected nonvolatile memory storing signed bootloader images; accessed during cold start before RAM initialization. Use Value: Hardware write inhibit (OE#/CE#/WE# gating) and software data protection prevent unauthorized firmware modification - satisfying traceability and audit requirements. |
Use Scenario: Storing line-card-specific configuration parameters (e.g., gain settings, protocol stacks) in carrier-grade DSLAM and ONU modules. IC Role / Device Role / Timing Role: Sector-erasable configuration memory updated remotely via management interface; requires robustness against brown-out events. Use Value: VDD power-up/down detection and noise immunity (<5 ns glitch rejection) prevent corruption during AC power cycling or lightning-induced transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70EC | 1 Mbit (128K × 8), 70 ns access, but requires 3 V or 5 V selectable supply; lacks SuperFlash® fixed-timing guarantee. | Higher standby current (1 µA vs. 100 µA) and lower endurance (100,000 cycles vs. 10,000 min) reduce suitability for high-write industrial logging. | Select only if dual-voltage support is required; verify board-level VIO routing and timing margin for erase variability. |
| MX29LV160CBTI-70G | 16 Mbit (2M × 8), 70 ns access, CFI-compliant; pinout differs (48-pin TSOP), no sector uniformity - 64 Kbyte blocks + 8 Kbyte boot sectors. | Not pin-compatible; requires PCB redesign and firmware adaptation for block-addressed CFI command set. | Choose for higher density needs only; not a drop-in replacement - evaluate migration effort including driver and bootloader changes. |
Compared with AM29LV010B-70EC and MX29LV160CBTI-70G, the SST39SF010A-70-4I-NHE offers guaranteed fixed program/erase timing, lower industrial-grade standby current, and true JEDEC x8 pin/command compatibility - making it optimal for legacy system refreshes where timing predictability and minimal layout change are critical.
Availability
SST39SF010A-70-4I-NHE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS memory, medical device bootloader storage, and telecom line card configuration requiring stable component supply across extended product lifecycles.
Supply support for SST39SF010A-70-4I-NHE 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 Inc. is a global semiconductor company specializing in microcontrollers, analog components, and memory solutions, with design centers and manufacturing facilities across North America, Asia, and Europe.
The SST39SF010A-70-4I-NHE belongs to Microchip's SST39SFx family of Multi-Purpose Flash devices, engineered specifically for cost-sensitive, long-lifecycle embedded systems requiring reliable in-system programmability without external high-voltage circuitry.
FAQ
What is the maximum operating temperature range for the SST39SF010A-70-4I-NHE?
The SST39SF010A-70-4I-NHE is rated for industrial temperature operation from –40°C to +85°C, as confirmed by Microchip's DS20005022F datasheet Table 5-1. This range supports deployment in harsh environments such as factory floors, outdoor telecom cabinets, and medical equipment enclosures without thermal derating.
Does the SST39SF010A-70-4I-NHE require an external VPP programming voltage?
No, the SST39SF010A-70-4I-NHE does not require an external VPP voltage. It features internal VPP generation powered solely by the 4.5V–5.5V VDD supply, eliminating the need for high-voltage charge pumps or external programming supplies - a key advantage over older EPROM and some early flash devices.
How many address lines does the SST39SF010A-70-4I-NHE use, and what is the role of A16–A18?
The SST39SF010A-70-4I-NHE uses A0–A15 for addressing its 128K × 8 memory space. Pins A16, A17, and A18 are marked NC (No Connection) for this variant, as stated in Figure 2-1 and Table 2-1 of the datasheet - confirming that address expansion beyond 128K words is not supported in the SST39SF010A-70-4I-NHE.
What command sequence is required to perform a byte program operation on the SST39SF010A-70-4I-NHE?
The SST39SF010A-70-4I-NHE requires a three-byte software unlock sequence before byte programming: write AAH to address 5555H, then 55H to address 2AAAH, then A0H to address 5555H. Only then can the target byte address and data be written - a JEDEC-standardized protection mechanism preventing accidental writes.
Is the SST39SF010A-70-4I-NHE pin-compatible with the SST39SF020A or SST39SF040?
No, the SST39SF010A-70-4I-NHE is not fully pin-compatible with SST39SF020A or SST39SF040. While all share the same 32-pin TSOP package, pins 1 and 30 are NC on SST39SF010A but serve as A18 and A17 respectively on the larger variants - making direct substitution electrically unsafe without verifying address line connectivity and firmware address mapping.
SST39SF010A-70-4I-NHE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- 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:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (11.43x13.97)
SST39SF010A-70-4I-NHE FAQ
1.How can I place an order for SST39SF010A-70-4I-NHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-70-4I-NHE 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 SST39SF010A-70-4I-NHE reliable?
The price and inventory of SST39SF010A-70-4I-NHE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39SF010A-70-4I-NHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-70-4I-NHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-70-4I-NHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-70-4I-NHE?
SST39SF010A-70-4I-NHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-70-4I-NHE 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 SST39SF010A-70-4I-NHE?
For technical support, including SST39SF010A-70-4I-NHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-70-4I-NHE requirements.
6.How does Aetrix verify that SST39SF010A-70-4I-NHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-70-4I-NHE 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 SST39SF010A-70-4I-NHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-70-4I-NHE?
All SST39SF010A-70-4I-NHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-70-4I-NHE, 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 SST39SF010A-70-4I-NHE part is unused and in its original packaging.
Return procedure for SST39SF010A-70-4I-NHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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