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Microchip Technology SST39SF010A-45-4I-NHE
- Part No.:
- SST39SF010A-45-4I-NHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
SST39SF010A-45-4I-NHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,813
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Product details
Overview
SST39SF010A-45-4I-NHE from Microchip Technology is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with single 4.5–5.5V supply operation, 55 ns read access time, and JEDEC-standard x8 parallel interface. It features sector-erase capability (4 KB uniform sectors), 100,000 program/erase endurance cycles, and >100 years data retention - deployed in embedded firmware storage, BIOS boot code, and industrial controller configuration memory.
For engineers reviewing the SST39SF010A-45-4I-NHE datasheet, SST39SF010A-45-4I-NHE pinout, SST39SF010A-45-4I-NHE application, or SST39SF010A-45-4I-NHE equivalent, this page delivers verified package mapping (32-lead PLCC), JEDEC-compliant command set, SuperFlash technology reliability metrics, and real-world timing behavior for system-level integration and legacy board replacement.
Technical Context
The SST39SF010A-45-4I-NHE implements SST's proprietary SuperFlash split-gate cell architecture with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. Its control logic interprets JEDEC-standard command sequences (e.g., 5555H/AAH → 2AAAH/55H → 5555H/A0H for byte-program) via CE#, OE#, and WE# pins.
It supports three software-based write status detection methods: Data# Polling (DQ7), Toggle Bit (DQ6), and internal timer timeout - all accessible during active programming or erasing. Hardware protection includes VDD power-up/down detection (<2.5V inhibit), noise/glitch immunity (<5 ns pulse rejection), and tri-state output control via CE#/OE#.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - supports full firmware image storage for 8-bit microcontrollers without external address multiplexing. |
| Read Access Time | 55 ns - enables direct connection to 14 MHz bus systems with no wait states in standard read mode. |
| Supply Voltage | 4.5–5.5 V - compatible with legacy 5 V TTL logic families and eliminates need for dedicated charge pumps. |
| Endurance | 100,000 program/erase cycles - validated per JEDEC A117, sufficient for field-upgradable firmware with annual updates over 20+ years. |
| Data Retention | >100 years - rated per JEDEC A103 at 25°C, ensuring long-term reliability in unpowered storage applications. |
| Byte-Program Time | 14 µs typical - reduces firmware update latency; maximum 20 µs guarantees deterministic timing for host CPU polling loops. |
| Sector Size | 4 KB uniform sectors - allows selective reprogramming of bootloader or parameter blocks without erasing entire device. |
Pinout & Package
Package: 32-lead Plastic Leaded Chip Carrier (PLCC), RoHS compliant, 1.27 mm pitch, body size 13.97 mm × 13.97 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A16 = MSB); selects 128K locations; A12–A16 used for sector selection during erase. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; latched internally during write; high-impedance when CE# or OE# is high. |
| CE# | Chip Enable | Active-low chip select; device enters standby (30 µA) when high; required low for all operations except reset. |
| OE# | Output Enable | Active-low output gate; controls DQ bus drive; high-Z state prevents bus contention during reads. |
| WE# | Write Enable | Active-low write strobe; latches address/data on falling edge; initiates internal program/erase after fourth/fifth pulse. |
| VDD | Power Supply | +4.5 to +5.5 V supply; powers core logic and flash array; must stabilize ≥100 µs before first read/write. |
| VSS | Ground | Reference return path for all signals; requires low-inductance connection to minimize switching noise. |
| NC | No Connect | Pins 13, 24, 31 - physically present but unconnected; must remain floating or tied to ground per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide tunneling injector enables fixed 14 µs byte-program and 18 ms sector-erase times across full lifetime. |
| JEDEC Standard Compliance | Fully conforms to JEDEC pinouts and command sets for x8 flash memories - ensures drop-in compatibility with existing 5 V parallel NOR designs. |
| Hardware + Software Protection | VDD monitoring, glitch filtering, and mandatory 3-byte (program) / 6-byte (erase) unlock sequences prevent accidental writes during power transitions. |
| End-of-Write Detection | Dual-status bits (DQ7 = Data# Polling, DQ6 = Toggle Bit) allow host CPU to poll completion without fixed delays or external timers. |
| Latched Address/Data | Internal latching on CE# or WE# edges eliminates need for external address/data registers in microcontroller interfaces. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Boot ROM |
|---|---|
Use Scenario: Storing ladder logic firmware and I/O configuration tables in programmable logic controllers operating in -40°C to +85°C environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with direct 8-bit bus interface; executes in-place (XIP) during cold start; supports field updates via serial port loader. Use Value: 55 ns read access enables zero-wait-state execution from flash; 100,000-cycle endurance accommodates quarterly firmware patches over 25-year product lifecycle. | Use Scenario: Boot code storage in AT/ATX motherboards requiring compatibility with ISA/EISA bus timing and 5 V signaling. IC Role / Device Role / Timing Role: Primary BIOS ROM mapped to 0xF0000–0xFFFFF; accessed via standard 8-bit memory read cycles controlled by chipset address decode. Use Value: JEDEC pinout and command set ensure plug compatibility with legacy BIOS sockets; 4.5–5.5 V operation matches motherboard VCC rails without level shifters. |
| Medical Device Configuration Memory | Telecom Line Card Parameter Storage |
Use Scenario: Storing calibration coefficients, safety thresholds, and user preferences in FDA-cleared diagnostic equipment with strict data integrity requirements. IC Role / Device Role / Timing Role: Secure configuration store accessed only during initialization; protected by hardware write inhibit and software lock sequences. Use Value: >100-year data retention meets IEC 62304 long-term archiving mandates; sector-erase allows updating calibration data without disturbing safety-critical boot code. | Use Scenario: Holding DSP firmware images and line-provisioning parameters in carrier-grade DSLAM and ONU modules deployed in temperature-controlled cabinets. IC Role / Device Role / Timing Role: Dual-image storage (active/backup) with atomic sector swap; updated via out-of-band management interface during maintenance windows. Use Value: 4 KB sector granularity enables fast failover (≤18 ms erase + ≤20 µs program per byte); 32-lead PLCC simplifies rework on high-density backplane PCBs. |
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-55EI | 55 ns access, 1 Mbit, 3.0 V core (3.0–3.6 V I/O), requires VPP = 12 V for write/erase | Requires external high-voltage generator; incompatible with pure 5 V systems | Select only if migrating to 3.3 V platform with voltage translation and VPP support. |
| MX29LV160CBTI-70G | 70 ns access, 16 Mbit (2M × 8), 3.0 V core, 1.8 V I/O compatible, no VPP needed | Higher density, slower access, different command set (AMD-style), 48-pin TSOP | Choose for new 3.3 V designs needing larger capacity; not pin-compatible or drop-in. |
Compared with AM29LV010B-55EI and MX29LV160CBTI-70G, the SST39SF010A-45-4I-NHE offers true 5 V single-supply operation with no VPP, JEDEC command compatibility for legacy design reuse, and faster 55 ns read timing - making it optimal for cost-sensitive industrial upgrades where board space and voltage infrastructure are constrained.
Availability
SST39SF010A-45-4I-NHE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy PC BIOS boot ROM, medical device configuration memory, and telecom line card parameter storage requiring stable component supply and long-term obsolescence management.
Supply support for SST39SF010A-45-4I-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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and industrial-grade qualification.
The SST39SF010A-45-4I-NHE belongs to Microchip's SST SuperFlash family, engineered for high-endurance, low-power, and pin-compatible replacement of legacy EPROM and EEPROM in 5 V embedded systems.
FAQ
What is the maximum operating temperature range for the SST39SF010A-45-4I-NHE?
The SST39SF010A-45-4I-NHE is rated for industrial temperature operation from -40°C to +85°C, as specified in Table 5 of the official Microchip datasheet DS20005022C. This rating applies to all DC and AC electrical characteristics, including 55 ns read access time and 14 µs byte-program timing, under 4.5–5.5 V supply conditions. The "I" suffix in the part number explicitly denotes industrial grade.
Does the SST39SF010A-45-4I-NHE require an external VPP voltage for programming?
No, the SST39SF010A-45-4I-NHE does not require an external VPP voltage. It performs all program and erase operations using only the main VDD supply (4.5–5.5 V), with internal charge pump generation. This eliminates the need for high-voltage circuitry and simplifies system design compared to older EPROM or early flash devices like the AM29LV010B.
How many address lines does the SST39SF010A-45-4I-NHE use, and what is the significance of A16?
The SST39SF010A-45-4I-NHE uses 17 address lines (A0–A16) to access its 128K × 8 organization. A16 is the most significant address bit and is used during sector-erase operations to select one of 32 uniform 4 KB sectors. In read and byte-program modes, all 17 bits define the target memory location.
What command sequence is required to initiate a byte-program operation on the SST39SF010A-45-4I-NHE?
To initiate byte-program, the SST39SF010A-45-4I-NHE requires a three-byte unlock sequence: write 0xAA to address 0x5555, then 0x55 to address 0x2AAA, then 0xA0 to address 0x5555. Only after this sequence can the target address and data byte be written. This JEDEC-standard software data protection prevents accidental writes during power transitions.
Is the SST39SF010A-45-4I-NHE pin-compatible with other devices in the SST39SFxxxA family?
Yes, the SST39SF010A-45-4I-NHE shares identical pinout and command set with SST39SF020A and SST39SF040 in all supported packages (PLCC, TSOP, PDIP). Differences lie solely in density (1 Mbit vs. 2/4 Mbit), address width (A16 vs. A17/A18), and sector count - allowing same PCB footprint for scalable memory configurations.
SST39SF010A-45-4I-NHE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST39 MPF™
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- 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:
- 45 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-45-4I-NHE FAQ
1.How can I place an order for SST39SF010A-45-4I-NHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-45-4I-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-45-4I-NHE reliable?
The price and inventory of SST39SF010A-45-4I-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-45-4I-NHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-45-4I-NHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-45-4I-NHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-45-4I-NHE?
SST39SF010A-45-4I-NHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-45-4I-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-45-4I-NHE?
For technical support, including SST39SF010A-45-4I-NHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-45-4I-NHE requirements.
6.How does Aetrix verify that SST39SF010A-45-4I-NHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-45-4I-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-45-4I-NHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-45-4I-NHE?
All SST39SF010A-45-4I-NHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-45-4I-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-45-4I-NHE part is unused and in its original packaging.
Return procedure for SST39SF010A-45-4I-NHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39SF010A-45-4I-NHE Tags
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AT24C04C-SSHM-T
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