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Microchip Technology SST39SF010A-70-4C-PHE
- Part No.:
- SST39SF010A-70-4C-PHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
SST39SF010A-70-4C-PHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:978
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Product details
Overview
SST39SF010A-70-4C-PHE 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 implements SuperFlash® split-gate technology for high reliability and is used in embedded firmware storage, BIOS/UEFI code storage, and industrial controller configuration memory.
For engineers reviewing the SST39SF010A-70-4C-PHE datasheet, SST39SF010A-70-4C-PHE pinout, SST39SF010A-70-4C-PHE application, or SST39SF010A-70-4C-PHE equivalent, key selection criteria include JEDEC-standard x8 Flash command compatibility, hardware/software data protection, TTL I/O interface, and PDIP/PLCC/TSOP package options supporting legacy board designs.
Technical Context
The SST39SF010A-70-4C-PHE uses SuperFlash® split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its control logic supports standard microprocessor bus interfacing via CE#, OE#, and WE# signals, with latched address/data inputs and tri-state outputs.
It implements JEDEC-standard Flash 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), ensuring deterministic timing for system-level write management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8); supports direct replacement of EPROMs and earlier-generation Flash in 8-bit microcontroller systems. |
| Read Access Time | 70 ns max; enables reliable operation with 14 MHz system clocks without wait states in standard 80Cxx/8051-based designs. |
| Supply Voltage | 4.5V–5.5V; compatible with legacy 5V TTL logic families and eliminates need for level-shifting circuitry. |
| Endurance | 10,000 cycles min (JEDEC A117); sufficient for field firmware updates and configuration rewrites over product lifetime. |
| Data Retention | 100 years min (JEDEC A103); ensures nonvolatile storage integrity across industrial temperature ranges without refresh. |
| Sector Size | Uniform 4-Kbyte sectors; allows granular firmware patching and avoids full-chip erasure during partial updates. |
| Byte Program Time | 10 µs max; enables fast in-system programming with minimal host CPU overhead during field upgrades. |
| Chip Erase Time | 70 ms typical; provides rapid full-memory reset for factory initialization or recovery procedures. |
Pinout & Package
This device is available in 32-pin PDIP, 32-lead PLCC, and 32-lead TSOP packages. The SST39SF010A-70-4C-PHE variant uses the 32-pin PDIP package (PHE suffix), with Pin 1 as NC and Pin 30 as NC per datasheet Figure 2-1 and Table 2-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus (AMS = A16); selects one of 65,536 bytes in 128K × 8 organization. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; latched internally during writes, tri-stated when CE# or OE# is high. |
| CE# | Chip Enable | Active-low chip select; enables memory access only when low-critical for multi-device bus arbitration. |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state-used for read multiplexing. |
| WE# | Write Enable | Active-low write strobe; initiates byte program, sector erase, or chip erase upon valid command sequence. |
| VDD | Power Supply | +4.5V to +5.5V supply; powers all logic and memory cells-must be stable before TPU-WRITE (100 µs). |
| VSS | Ground | Reference ground for all I/O and core logic; requires low-impedance connection to minimize noise coupling. |
| NC (Pin 1, Pin 30) | No Connection | Unbonded pins on SST39SF010A; must remain unconnected-no pull-up/down or routing required. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide injector delivers fixed 70 ns read and 10 µs program times-no derating needed over lifetime. |
| Hardware + Software Protection | Glitch immunity (<5 ns pulses), VDD power-up detection, and JEDEC-compliant 3-/6-byte command lockout prevent accidental writes. |
| TTL I/O Compatibility | Direct interface with 5V microcontrollers (e.g., 8051, Z80) without level shifters-reduces BOM count and layout complexity. |
| Uniform Sector Architecture | 32 × 4-Kbyte sectors enable selective firmware updates-avoids full-chip erase delays during field maintenance. |
| End-of-Write Detection | Dual status methods (DQ7 Data# Polling and DQ6 Toggle Bit) allow host CPU to poll asynchronously-eliminates fixed timeout delays. |
| RoHS Compliance | Lead-free PDIP packaging meets environmental regulations for industrial and commercial deployments. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS/UEFI Code Storage |
|---|---|
Use Scenario: Storing ladder logic firmware and I/O mapping tables in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with 100-year retention and 10,000-cycle endurance-ensures firmware integrity across 15+ year equipment lifecycles. Use Value: Uniform 4-Kbyte sectors allow incremental firmware patches without full reflash, reducing downtime during scheduled maintenance windows. | Use Scenario: Holding boot firmware and hardware initialization routines in desktop motherboards using 8-bit ISA or LPC bus interfaces. IC Role / Device Role / Timing Role: JEDEC-standard x8 Flash replacement for obsolete 27C010 EPROMs-enables in-circuit reprogramming without socket removal. Use Value: 70 ns access time supports zero-wait-state operation with 14 MHz clocked 80286/80386 CPUs, preserving legacy timing budgets. |
| Embedded Network Router Bootloader | Medical Device Configuration Memory |
Use Scenario: Storing bootloader code and network stack parameters in enterprise-grade Ethernet switches with cold-boot recovery requirements. IC Role / Device Role / Timing Role: Primary boot memory accessed at power-on reset-requires guaranteed 100 µs power-up-to-read timing (TPU-READ). Use Value: Single 5V supply simplifies power design versus multi-rail Flash alternatives, reducing bill-of-materials cost by eliminating regulator components. | Use Scenario: Retaining calibration coefficients, user preferences, and safety-critical operational limits in FDA-cleared diagnostic imaging equipment. IC Role / Device Role / Timing Role: Secure configuration store with hardware write-inhibit during power transitions-prevents corruption during brown-out events. Use Value: Software Data Protection (SDP) command lockout ensures only authenticated firmware updates modify stored parameters-meeting IEC 62304 traceability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70JC | 70 ns access, 1-Mbit (128K × 8), but uses AMD's MirrorBit technology with different command set and no SuperFlash® fixed timing. | Requires modified driver firmware due to non-JEDEC command structure; lacks uniform sector erase granularity. | Select only if existing AM29LV010B driver stack is already validated-avoid for new designs requiring JEDEC compliance. |
| MX29LV160CBTI-70G | 16-Mbit (2M × 8), 70 ns, but organized as x16 with byte-select capability-requires bus-width adaptation and different address mapping. | Not drop-in compatible: needs PCB redesign for 48-pin TSOP vs. 32-pin PDIP and revised address decoding logic. | Consider only for capacity-scaling paths where 16-Mbit density justifies layout change and firmware porting effort. |
Compared with AM29LV010B-70JC and MX29LV160CBTI-70G, the SST39SF010A-70-4C-PHE offers JEDEC-standard command compatibility, true 32-pin PDIP pinout, and guaranteed fixed timing-making it the optimal choice for legacy 5V system upgrades requiring zero hardware changes and minimal firmware adaptation.
Availability
SST39SF010A-70-4C-PHE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS/UEFI code storage, and embedded network router bootloader applications requiring stable component supply and long-term obsolescence management.
Supply support for SST39SF010A-70-4C-PHE 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 devices, Flash memory, and security solutions for embedded systems.
The SST39SF010A-70-4C-PHE belongs to Microchip's SST39SFx family of Multi-Purpose Flash devices, designed specifically for cost-sensitive, 5V-based embedded systems requiring reliable in-system programmability and long-term data retention.
FAQ
What is the maximum read access time specified for the SST39SF010A-70-4C-PHE?
The SST39SF010A-70-4C-PHE has a maximum read access time of 70 ns under standard operating conditions (VDD = 4.5V–5.5V, TA = 0°C to +70°C). This value is guaranteed across the commercial temperature range and aligns with the "-70" speed grade designation in the part number. The device also supports a faster 55 ns variant (SST39SF010A-55-4C-PHE), but the SST39SF010A-70-4C-PHE is rated strictly at 70 ns.
Does the SST39SF010A-70-4C-PHE require external VPP voltage for programming?
No, the SST39SF010A-70-4C-PHE does not require external VPP. It performs all byte program and erase operations using only the standard 4.5V–5.5V VDD supply, with internal charge pump generation of high-voltage programming signals. This eliminates the need for dedicated VPP circuitry or additional power rails, simplifying system design and reducing component count compared to older EPROM or early Flash technologies.
How many address lines does the SST39SF010A-70-4C-PHE use, and what is the significance of AMS = A16?
The SST39SF010A-70-4C-PHE uses 16 address lines (A0–A15) for its 128K × 8 organization, with AMS (Most Significant Address) defined as A16. Per datasheet Table 2-1, AMS = A16 applies specifically to the SST39SF010A variant-meaning A16 is not bonded and functions as NC, while A0–A15 fully decode the 65,536-byte address space. This distinguishes it from the SST39SF020A (AMS = A17) and SST39SF040 (AMS = A18).
What software data protection commands are required to perform a byte program on the SST39SF010A-70-4C-PHE?
To initiate a byte program on the SST39SF010A-70-4C-PHE, a mandatory three-byte software data protection (SDP) sequence must be executed: first write AAH to address 5555H, then 55H to address 2AAAH, then A0H to address 5555H. Only after this sequence is completed can the target byte address and data be written. This JEDEC-compliant lockout prevents accidental writes during power transitions or noise events.
Is the SST39SF010A-70-4C-PHE RoHS compliant, and what does the "-PHE" suffix indicate?
Yes, the SST39SF010A-70-4C-PHE is RoHS compliant per Microchip's documentation. The "-PHE" suffix explicitly denotes the 32-pin Plastic Dual In-line Package (PDIP) with lead-free finish, as confirmed in Section 8.1 of the datasheet. This package variant is intended for through-hole mounting in legacy industrial and computing applications where PDIP form factor and hand-solderability are required.
SST39SF010A-70-4C-PHE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-DIP (0.600", 15.24mm)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-PDIP
SST39SF010A-70-4C-PHE FAQ
1.How can I place an order for SST39SF010A-70-4C-PHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-70-4C-PHE 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-PHE reliable?
The price and inventory of SST39SF010A-70-4C-PHE 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-PHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-70-4C-PHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-70-4C-PHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-70-4C-PHE?
SST39SF010A-70-4C-PHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-70-4C-PHE 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-PHE?
For technical support, including SST39SF010A-70-4C-PHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-70-4C-PHE requirements.
6.How does Aetrix verify that SST39SF010A-70-4C-PHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-70-4C-PHE 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-PHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-70-4C-PHE?
All SST39SF010A-70-4C-PHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-70-4C-PHE, 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-PHE part is unused and in its original packaging.
Return procedure for SST39SF010A-70-4C-PHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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