My Inquiry
My Account
Microchip Technology SST39SF010A-70-4I-WHE
- Part No.:
- SST39SF010A-70-4I-WHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39SF010A-70-4I-WHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST39SF010A-70-4I-WHE from Microchip Technology is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with 70 ns read access time, single 4.5–5.5V supply operation, and uniform 4 KB sector-erase architecture. It delivers 100,000 program/erase cycles endurance and >100 years data retention, used in embedded firmware storage for industrial controllers and legacy BIOS modules.
For engineers reviewing the SST39SF010A-70-4I-WHE datasheet, SST39SF010A-70-4I-WHE pinout, SST39SF010A-70-4I-WHE application, or SST39SF010A-70-4I-WHE equivalent, this page provides verified package mapping (32-lead PLCC), JEDEC-compliant x8 interface timing, sector-erase command sequence, and direct alternatives with documented functional alignment.
Technical Context
The SST39SF010A-70-4I-WHE implements SST's proprietary SuperFlash split-gate cell technology, enabling fixed erase/program times independent of cycle count. Its control logic interprets JEDEC-standard command sequences-including three-byte software data protection for byte-program and six-byte sequences for sector/chip-erase-via CE#, OE#, and WE# pins.
It supports TTL-compatible I/O with latched address/data buses, uses Data# Polling (DQ7) and Toggle Bit (DQ6) for end-of-write detection, and features hardware write inhibition during power-up/down via VDD monitoring and noise filtering on WE#/CE# inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8), directly maps to 128 KB firmware image storage without bank switching. |
| Read Access Time | 70 ns maximum - enables direct execution from flash (XIP) in 14 MHz microcontroller systems. |
| Supply Voltage | 4.5–5.5 V - compatible with legacy 5 V logic rails and eliminates need for external voltage regulators. |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over full product lifecycle in industrial equipment. |
| Data Retention | Greater than 100 years - ensures unpowered archival integrity for configuration data in remote deployments. |
| Sector Size | Uniform 4 KB sectors - allows granular firmware patching without erasing entire device, reducing update downtime. |
| Byte-Program Time | 14 µs typical - enables fast runtime parameter logging or calibration storage in real-time control loops. |
Pinout & Package
Package: 32-lead Plastic Leaded Chip Carrier (PLCC), RoHS compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus selects one of 131,072 bytes; A16 is MSB for 1 Mbit addressing. |
| DQ0–DQ7 | Data Input/Output | 8-bit bidirectional data bus; tri-stated when CE# or OE# is high to prevent bus contention. |
| CE# | Chip Enable | Active-low chip select; device enters standby (30 µA) when high, enabling low-power system sleep modes. |
| OE# | Output Enable | Active-low output gate; controls data bus visibility without affecting internal state or power mode. |
| WE# | Write Enable | Active-low write strobe; initiates byte-program, sector-erase, or chip-erase upon recognized command sequence. |
| VDD | Power Supply | 4.5–5.5 V supply; internal charge pump generates VPP for programming, eliminating external high-voltage source. |
| VSS | Ground | Reference return path for all signals and internal circuitry; requires low-impedance PCB connection. |
| NC | No Connection | Pins 24 and 31 are unconnected; must remain floating per datasheet to avoid latch-up risk. |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick oxide tunneling injector enables stable 70 ns read timing across 100k cycles without performance degradation. |
| Software Data Protection | JEDEC-compliant 3-byte (program) and 6-byte (erase) command sequences prevent accidental writes during power transitions. |
| End-of-Write Detection | DQ6 toggle bit and DQ7 data polling provide deterministic host-side completion signaling without timer-based delays. |
| Hardware Write Inhibit | VDD monitor blocks writes below 2.5 V; <5 ns noise pulses on WE#/CE# are ignored, enhancing EMC robustness. |
| JEDEC Pinout Compliance | Standard x8 memory pin assignment enables drop-in replacement for other JEDEC-compliant 1 Mbit flash devices. |
Applications
| Industrial PLC Firmware Storage | Legacy PC BIOS Memory |
|---|---|
Use Scenario: Storing ladder logic programs and I/O configuration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with direct bus interface; 70 ns access supports real-time scan cycle execution at 10 kHz. Use Value: 100-year data retention ensures firmware persistence through extended maintenance intervals without battery backup. | Use Scenario: Holding BIOS initialization routines and hardware configuration data in desktop motherboards from late 1990s to early 2000s. IC Role / Device Role / Timing Role: Boot ROM mapped into CPU address space; 70 ns read time meets Intel 486/Pentium timing requirements for POST execution. Use Value: Sector-erase capability allows selective BIOS updates without replacing the entire chip, reducing service costs. |
| Medical Device Calibration Storage | Telecom Line Card Configuration |
Use Scenario: Retaining sensor calibration coefficients and safety-critical operational parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure parameter archive with hardware/software write protection; operates across -40°C to +85°C industrial temperature range. Use Value: 100,000-cycle endurance supports recalibration every 6 months over 20+ year device lifetime. | Use Scenario: Storing protocol stack configurations and hardware revision data in carrier-grade DSLAM line cards. IC Role / Device Role / Timing Role: Field-upgradable configuration store accessed via microcontroller SPI-to-parallel bridge during card initialization. Use Value: Uniform 4 KB sectors enable atomic firmware patches for DOCSIS compliance updates without service interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV010B-70EC | 70 ns access, 1 Mbit, 3.0 V core (with 5 V I/O), different command set and sector layout (64 KB uniform blocks). | Requires modified driver firmware due to non-JEDEC erase command structure and larger erase granularity. | Select if migrating to lower-voltage system architecture; verify compatibility with existing bootloader erase routines. |
| MX29LV160CBTI-70G | 16 Mbit density, 70 ns access, 3.0 V operation, boot-block architecture (16 KB + 64 KB + 64 KB + 128 KB), different ID codes. | Higher density enables multi-image storage; boot-block layout supports secure recovery partitioning not available in SST39SF010A. | Choose for new designs requiring firmware redundancy or future scalability; not suitable as direct replacement due to pinout and timing differences. |
Compared with AM29LV010B-70EC and MX29LV160CBTI-70G, the SST39SF010A-70-4I-WHE offers JEDEC-standard command compatibility and uniform 4 KB sectors ideal for fine-grained field updates, while the alternatives trade standardization for voltage reduction or density scaling.
Availability
SST39SF010A-70-4I-WHE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy BIOS replacement, medical device calibration archiving, and telecom line card configuration requiring stable component supply across long-lifecycle programs.
Supply support for SST39SF010A-70-4I-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 components, and memory solutions, with emphasis on reliability and long-term product support.
The SST39SF010A-70-4I-WHE belongs to Microchip's legacy SuperFlash MPF family, designed specifically for cost-sensitive, 5 V embedded systems requiring field-upgradable nonvolatile storage with proven JEDEC interoperability.
FAQ
What is the maximum operating temperature range for the SST39SF010A-70-4I-WHE?
The SST39SF010A-70-4I-WHE is rated for industrial temperature operation from -40°C to +85°C, as confirmed in Table 5 of the official datasheet. This specification applies to the -4I suffix variant, making it suitable for deployment in demanding environments such as factory automation and outdoor telecom infrastructure where thermal cycling is expected. The SST39SF010A-70-4I-WHE maintains full DC and AC parameter compliance across this range without derating.
Does the SST39SF010A-70-4I-WHE require an external VPP voltage for programming?
No, the SST39SF010A-70-4I-WHE integrates an internal charge pump that generates the required high voltage for programming and erasing operations. It operates entirely from a single 4.5–5.5 V supply, eliminating the need for external VPP circuitry. This feature is explicitly stated in the datasheet under "Automatic Write Timing – Internal VPP Generation" and simplifies board design by reducing component count and layout complexity for the SST39SF010A-70-4I-WHE.
How many address lines does the SST39SF010A-70-4I-WHE use, and what is the MSB?
The SST39SF010A-70-4I-WHE uses 17 address lines (A0–A16), with A16 serving as the most significant bit for its 128K × 8 organization. This is confirmed in Figure 2 (PLCC pinout), Table 1 (Pin Description footnote), and the Product Identification section, which states "AMS = A16 for SST39SF010A". The SST39SF010A-70-4I-WHE does not utilize A17 or A18, distinguishing it from the higher-density SST39SF020A and SST39SF040 variants.
What is the sector erase time for the SST39SF010A-70-4I-WHE, and how is completion detected?
The typical sector-erase time for the SST39SF010A-70-4I-WHE is 18 ms, as specified in the Features section of the datasheet. Completion is detected using either Data# Polling (monitoring DQ7) or the Toggle Bit method (monitoring DQ6), both enabled after the rising edge of the sixth WE# pulse in the erase command sequence. These mechanisms allow the host microcontroller to poll asynchronously without fixed delay loops, optimizing system responsiveness during SST39SF010A-70-4I-WHE firmware updates.
Is the SST39SF010A-70-4I-WHE pin-compatible with other devices in the SST39SFxxxA family?
Yes, the SST39SF010A-70-4I-WHE shares identical pinout and signal definitions with the SST39SF020A and SST39SF040 in all supported packages (PLCC, TSOP, PDIP), as confirmed by Figures 2–4 and Table 1. However, address line usage differs: A17 and A18 are NC on the SST39SF010A-70-4I-WHE but active on higher-density variants. Thus, while physically pin-compatible, system-level compatibility requires verification of address decoding logic and firmware support for the specific density. The SST39SF010A-70-4I-WHE may be substituted in sockets designed for the family, provided address mapping aligns.
SST39SF010A-70-4I-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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
SST39SF010A-70-4I-WHE FAQ
1.How can I place an order for SST39SF010A-70-4I-WHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-70-4I-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-70-4I-WHE reliable?
The price and inventory of SST39SF010A-70-4I-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-70-4I-WHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-70-4I-WHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-70-4I-WHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-70-4I-WHE?
SST39SF010A-70-4I-WHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-70-4I-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-70-4I-WHE?
For technical support, including SST39SF010A-70-4I-WHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-70-4I-WHE requirements.
6.How does Aetrix verify that SST39SF010A-70-4I-WHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-70-4I-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-70-4I-WHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-70-4I-WHE?
All SST39SF010A-70-4I-WHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-70-4I-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-70-4I-WHE part is unused and in its original packaging.
Return procedure for SST39SF010A-70-4I-WHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39SF010A-70-4I-WHE Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
