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Microchip Technology SST39SF010A-70-4C-WHE
- Part No.:
- SST39SF010A-70-4C-WHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39SF010A-70-4C-WHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,959
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Product details
Overview
SST39SF010A-70-4C-WHE from Microchip Technology is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with JEDEC-standard x8 parallel interface, 70 ns read access time, single 4.5–5.5 V supply operation, and uniform 4 KB sector-erase architecture. It serves as nonvolatile program/data storage in embedded microcontroller systems requiring field-upgradable firmware.
For engineers reviewing the SST39SF010A-70-4C-WHE datasheet, SST39SF010A-70-4C-WHE pinout, SST39SF010A-70-4C-WHE application, or SST39SF010A-70-4C-WHE equivalent, key selection criteria include its 32-pin PLCC package, TTL I/O compatibility, hardware/software data protection, SuperFlash endurance (100,000 cycles), and guaranteed 100-year data retention under commercial temperature range (0°C to +70°C).
Technical Context
The SST39SF010A-70-4C-WHE 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. Its control logic interprets JEDEC-standard command sequences-including three-byte software unlock for byte-program and six-byte unlock for sector/chip-erase-via CE#, OE#, and WE# signals.
It supports latched address/data bus operation, automatic internal VPP generation during write, and dual end-of-write detection via Toggle Bit (DQ6) and Data# Polling (DQ7). The device operates in Read, Byte-Program, Sector-Erase, Chip-Erase, and Software Product Identification modes, all governed by precise AC timing parameters defined for 70 ns access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8), providing 131,072 bytes of nonvolatile storage for boot code or configuration data. |
| Read Access Time | 70 ns maximum - determines minimum CPU wait-state insertion for reliable parallel bus interfacing at up to ~10 MHz. |
| Supply Voltage | 4.5–5.5 V - compatible with legacy 5 V logic systems without level-shifting; no external high-voltage programming supply required. |
| Endurance | 100,000 program/erase cycles - enables frequent firmware updates in industrial controllers or telecom equipment. |
| Data Retention | Greater than 100 years - ensures long-term reliability in unattended or maintenance-free deployments. |
| Sector Size | Uniform 4 KByte sectors - allows granular firmware patching without erasing full device, reducing update time and risk. |
| Operating Temperature | 0°C to +70°C (Commercial grade) - validated for use in office, consumer, and light-industrial environments. |
Pinout & Package
Package: 32-lead Plastic Leaded Chip Carrier (PLCC), RoHS-compliant, surface-mountable with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K × 8 memory map; A16 is most significant address bit for SST39SF010A. |
| DQ0–DQ7 | Data Input/Output | 8-bit bidirectional data bus; tri-stated when CE# or OE# is high; latched internally during write cycles. |
| CE# | Chip Enable | Active-low chip select; device enters standby (30 µA) when high; required low for all operations except Write Inhibit. |
| OE# | Output Enable | Active-low output gate; controls data bus drive during Read; high-Z state prevents bus contention. |
| WE# | Write Enable | Active-low write strobe; initiates byte-program, sector-erase, and chip-erase command sequences with CE#. |
| VDD | Power Supply | +5 V supply (4.5–5.5 V); powers core logic and I/O buffers; internal charge pump generates programming voltage. |
| VSS | Ground | Reference ground for all signals and power domains; must be low-impedance for noise immunity. |
| NC | No Connection | Pins 12 and 31 are unconnected; must remain floating per datasheet to avoid unintended behavior. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide tunneling injector delivers fixed 18 ms sector-erase and 14 µs byte-program times across full lifetime. |
| JEDEC-Compliant Command Set | Standardized 3-byte unlock (AAH/55H/A0H) for program and 6-byte unlock (AAH/55H/80H/AAH/55H/30H) for sector-erase ensure interoperability with existing flash drivers. |
| Hardware + Software Data Protection | Glitch filtering (<5 ns pulse rejection), VDD power-up/down detection, and mandatory software unlock prevent accidental writes during reset or brownout. |
| End-of-Write Detection | Dual status reporting via Toggle Bit (DQ6 toggles until completion) and Data# Polling (DQ7 complements until valid) enables efficient polling without fixed delays. |
| TTL I/O Compatibility | Input thresholds (VIL = 0.8 V, VIH = 2.0 V) and output drive (VOH ≥ 2.4 V, VOL ≤ 0.4 V) match standard 5 V TTL logic families for direct MCU interface. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Backup |
|---|---|
|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-erase capability enabling field updates without full reflash; 70 ns read speed supports real-time scan cycle execution. Use Value: 100,000-cycle endurance allows weekly firmware patches over 20+ years; 100-year data retention eliminates scheduled memory replacement. |
Use Scenario: Serving as secondary BIOS storage in industrial motherboards where primary flash may be corrupted or undergoing upgrade. IC Role / Device Role / Timing Role: Standalone x8 parallel boot memory mapped into CPU address space; CE#/OE# controlled read access synchronized to ISA/LPC bus timing. Use Value: Pin-compatible JEDEC footprint enables drop-in replacement of obsolete BIOS chips; 4.5–5.5 V operation matches legacy 5 V system rails. |
| Point-of-Sale Terminal Configuration | Medical Device Calibration Data |
|
Use Scenario: Holding localized language packs, tax tables, and peripheral driver settings in retail POS terminals subject to regional regulatory updates. IC Role / Device Role / Timing Role: Field-upgradable parameter storage accessed via microcontroller GPIO-banged parallel interface during idle periods. Use Value: Uniform 4 KB sectors allow updating only changed tax tables without erasing full calibration or UI assets; low 30 µA standby current extends battery backup life. |
Use Scenario: Storing factory-calibrated sensor offsets and linearization coefficients in portable diagnostic devices requiring traceable, tamper-resistant data. IC Role / Device Role / Timing Role: Secure nonvolatile register bank; software data protection (SDP) prevents unauthorized modification of calibration values. Use Value: Hardware write inhibit during power transitions ensures calibration integrity during battery swaps; >100-year retention meets FDA long-term device lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70EC | 1 Mbit (128K × 8), 70 ns access, 3.0 V core + 5 V I/O; requires separate VPP for programming. | Lacks integrated VPP generation; needs external 12 V supply for erase/program; higher system BOM cost. | Select if migrating from AMD-compatible designs; verify voltage translation and timing margins due to different command latency. |
| MX29LV010CTI-70G | 1 Mbit (128K × 8), 70 ns access, single 3.0 V supply; JEDEC-compatible but uses different unlock sequence (60H/05H). | Lower power (15 mA active), but incompatible SDP commands require firmware driver rewrite. | Choose for new 3 V-only designs prioritizing energy efficiency; not suitable for drop-in replacement without software adaptation. |
Compared with AM29LV010B-70EC and MX29LV010CTI-70G, the SST39SF010A-70-4C-WHE offers integrated VPP generation and identical JEDEC unlock sequences, simplifying firmware reuse and eliminating external high-voltage circuitry - critical for cost-sensitive, space-constrained industrial PCBs.
Availability
SST39SF010A-70-4C-WHE is available at Aetrix Electronics and suitable for industrial control systems, legacy computing platforms, point-of-sale terminals, and medical instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for SST39SF010A-70-4C-WHE 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 specializing in microcontrollers, analog devices, and memory solutions, with a focus on robust, long-lifecycle components for industrial and automotive markets.
The SST39SF010A-70-4C-WHE belongs to Microchip's SST SuperFlash family, designed specifically for cost-effective, field-upgradable nonvolatile storage in 5 V embedded systems where reliability, ease of integration, and JEDEC compatibility are essential.
FAQ
What is the memory organization of the SST39SF010A-70-4C-WHE?
The SST39SF010A-70-4C-WHE is organized as 128K × 8, delivering 1 Mbit (131,072 bytes) of nonvolatile storage. Its 17 address lines (A0–A16) fully decode the address space, and it uses an 8-bit bidirectional data bus (DQ0–DQ7) compatible with standard microprocessor parallel interfaces. This structure is confirmed in the device's datasheet block diagram and pin description table.
Does the SST39SF010A-70-4C-WHE require an external high-voltage supply for programming?
No, the SST39SF010A-70-4C-WHE does not require an external high-voltage supply. It features internal VPP generation powered solely by the 4.5–5.5 V VDD rail, enabling full byte-program and sector-erase functionality without auxiliary voltage sources. This is explicitly stated in the "Features" section and "Device Operation" chapter of the official Microchip datasheet DS20005022C.
How is write protection implemented on the SST39SF010A-70-4C-WHE?
The SST39SF010A-70-4C-WHE implements dual-layer write protection: hardware-level inhibition (glitch filtering, VDD monitoring, and signal-level gating) and software-level protection via mandatory JEDEC-standard unlock sequences (three-byte for program, six-byte for erase). These mechanisms are permanently enabled at shipment and prevent accidental writes during power transitions or noise events.
What package type is used for the SST39SF010A-70-4C-WHE?
The SST39SF010A-70-4C-WHE is supplied in a 32-lead Plastic Leaded Chip Carrier (PLCC) package, as specified in the "Packages Available" section of the datasheet and confirmed by Figure 2 (Pin Assignments for 32-lead PLCC). This RoHS-compliant surface-mount package features gull-wing leads and is widely supported by legacy PCB assembly processes.
Can the SST39SF010A-70-4C-WHE be used in place of older SST39SF010A variants?
Yes, the SST39SF010A-70-4C-WHE is functionally and pin-compatible with earlier SST39SF010A versions sharing the same -70 speed grade and PLCC package. Its timing parameters (70 ns read access), command set, and DC characteristics align with the base SST39SF010A specification, making it a direct replacement for systems already designed around this family - provided the -4C (Commercial) temperature grade meets the application's environmental requirements.
SST39SF010A-70-4C-WHE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-TFSOP (0.488", 12.40mm Width)
- Packaging:
- Tray
- 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:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
SST39SF010A-70-4C-WHE FAQ
1.How can I place an order for SST39SF010A-70-4C-WHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-70-4C-WHE 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-70-4C-WHE reliable?
The price and inventory of SST39SF010A-70-4C-WHE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST39SF010A-70-4C-WHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-70-4C-WHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-70-4C-WHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-70-4C-WHE?
SST39SF010A-70-4C-WHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-70-4C-WHE 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-70-4C-WHE?
For technical support, including SST39SF010A-70-4C-WHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-70-4C-WHE requirements.
6.How does Aetrix verify that SST39SF010A-70-4C-WHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-70-4C-WHE 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-70-4C-WHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-70-4C-WHE?
All SST39SF010A-70-4C-WHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-70-4C-WHE, 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-70-4C-WHE part is unused and in its original packaging.
Return procedure for SST39SF010A-70-4C-WHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39SF010A-70-4C-WHE Tags
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