My Inquiry
My Account
Microchip Technology SST39SF010A-55-4I-WHE
- Part No.:
- SST39SF010A-55-4I-WHE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
SST39SF010A-55-4I-WHE.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST39SF010A-55-4I-WHE from Microchip Technology is a 1 Mbit (128K × 8) CMOS Multi-Purpose Flash memory IC with 55 ns read access time, single 4.5–5.5V supply operation, and uniform 4 KByte sector-erase architecture. It implements SST's SuperFlash technology with split-gate cells, supports TTL I/O compatibility, and is used for firmware storage in industrial control panels requiring field-upgradable code.
For engineers reviewing the SST39SF010A-55-4I-WHE datasheet, SST39SF010A-55-4I-WHE pinout, SST39SF010A-55-4I-WHE application, or SST39SF010A-55-4I-WHE equivalent, key selection criteria include JEDEC-standard x8 pinout compliance, 100,000-cycle endurance, 100-year data retention, sector-erase timing (18 ms typ), and hardware/software data protection schemes.
Technical Context
The SST39SF010A-55-4I-WHE uses SuperFlash split-gate cell technology with thick-oxide tunneling injector, enabling fixed erase/program times independent of cycle count. It operates in Read, Byte-Program, Sector-Erase, Chip-Erase, and Software Product ID modes via JEDEC-standard command sequences.
Address decoding supports A0–A16 (17 address lines), with AMS = A16 for this 1 Mbit variant. Pin functions include CE# for chip enable, OE# for output gating, WE# for write control, and DQ0–DQ7 for bidirectional data transfer with tri-state outputs when CE# or OE# is high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - supports 128,000 bytes of nonvolatile program/data storage |
| Read Access Time | 55 ns - enables direct execution from flash in 14 MHz microcontroller systems |
| Supply Voltage | 4.5–5.5 V - compatible with legacy 5V logic rails without level-shifting |
| Endurance | 100,000 program/erase cycles - validated per JEDEC A117 for long-term field reliability |
| Data Retention | >100 years - ensures firmware integrity across product lifecycle without refresh |
| Sector Size | 4 KByte uniform sectors - allows granular firmware updates without full-chip erasure |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments |
Pinout & Package
Package: 32-lead PLCC (Plastic Leaded Chip Carrier), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus; A16 is most significant bit (AMS) for 128K-word addressing |
| DQ0–DQ7 | Data Input/Output | 8-bit bidirectional data bus; latched internally during writes; tri-stated when CE# or OE# high |
| CE# | Chip Enable | Active-low device select; disables internal circuitry and reduces standby current to 30 µA when high |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state |
| WE# | Write Enable | Active-low write control; initiates byte-program or erase command latching on rising edge |
| VDD | Power Supply | +4.5V to +5.5V supply; powers all internal logic and charge pumps |
| VSS | Ground | Reference return path for all signals and power |
| NC | No Connection | Pins 12, 24, and 31 are unconnected; must be left 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 18 ms sector-erase time regardless of accumulated cycles |
| End-of-Write Detection | Hardware-supported Toggle Bit (DQ6) and Data# Polling (DQ7) eliminate need for fixed delay loops in host firmware |
| Software Data Protection | JEDEC-compliant 3-byte (program) or 6-byte (erase) command sequence prevents accidental writes during power transitions |
| Hardware Write Inhibit | Automatic lockout when VDD < 2.5V or WE#/CE#/OE# glitch < 5 ns ensures robustness in noisy industrial environments |
| TTL I/O Compatibility | Direct interface with 5V microcontrollers and FPGAs without level shifters or external buffers |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing ladder logic firmware in programmable logic controllers subject to frequent field updates and extended operational life. IC Role / Device Role / Timing Role: Nonvolatile code storage with sector-erase capability enabling partial reprogramming without system downtime. Use Value: 4 KByte uniform sectors allow updating only modified function blocks, reducing update time by >90% vs. full-chip erase. | Use Scenario: Holding calibration coefficients and safety-critical configuration parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, long-retention parameter storage with hardware write-inhibit during power brownouts. Use Value: >100-year data retention and 100,000-cycle endurance ensure parameter integrity over 15+ year device service life. |
| Automotive Body Control Module Bootloader | Networking Equipment Boot Image Storage |
Use Scenario: Hosting bootloader code in automotive BCMs requiring AEC-Q100-compliant nonvolatile memory with fast read access. IC Role / Device Role / Timing Role: Primary boot memory mapped into MCU address space with 55 ns access enabling zero-wait-state execution. Use Value: 55 ns read timing eliminates CPU wait states, improving boot speed by ~22% compared to 70 ns variants. | Use Scenario: Storing factory-default firmware images in Ethernet switches and routers requiring field-recoverable recovery partitions. IC Role / Device Role / Timing Role: Dual-bank image storage where one sector holds active firmware and another holds golden backup. Use Value: Independent 4 KByte sector erase allows atomic firmware rollback without corrupting active runtime code. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT29LV010A-12JC | 1 Mbit, 120 ns access, 3.0V core (with 5V I/O), 10,000-cycle endurance | Lower endurance and slower read limit use in high-update-rate firmware storage | Select only if 3.0V system integration or lower power in standby is prioritized over speed and longevity |
| MX29LV160CBTI-70G | 16 Mbit (2M × 8), 70 ns access, 3.0V supply, CFI-compliant command set | Higher density and different command protocol require firmware driver changes | Choose when scaling to larger firmware footprints and migrating to 3V-only designs; not drop-in compatible |
Compared with AT29LV010A-12JC and MX29LV160CBTI-70G, the SST39SF010A-55-4I-WHE delivers superior 55 ns read performance and 10× higher endurance-critical for industrial firmware that undergoes quarterly updates over 10+ years-while maintaining pin- and command-level compatibility with legacy 5V x8 flash sockets.
Availability
SST39SF010A-55-4I-WHE is available at Aetrix Electronics and suitable for industrial control panels, medical diagnostics equipment, automotive body control modules, and networking infrastructure requiring stable component supply and long-term obsolescence management.
Supply support for SST39SF010A-55-4I-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 leading provider of microcontrollers, analog components, and memory solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and software platforms.
The SST39SF010A-55-4I-WHE belongs to Microchip's legacy SST SuperFlash family, designed specifically for cost-sensitive, high-reliability 5V embedded systems needing field-upgradable firmware with guaranteed 100-year data retention.
FAQ
What is the maximum operating frequency supported by the SST39SF010A-55-4I-WHE?
The SST39SF010A-55-4I-WHE does not operate at a clock frequency-it is an asynchronous parallel flash memory. Its 55 ns read access time corresponds to a maximum effective interface speed of ~18 MHz in systems with zero wait states. System timing depends on CE#, OE#, and address setup/hold requirements per Table 11; no internal clock is required for SST39SF010A-55-4I-WHE operation.
Does the SST39SF010A-55-4I-WHE support both CE#-controlled and WE#-controlled write operations?
Yes, the SST39SF010A-55-4I-WHE supports both CE#- and WE#-controlled programming and erase operations, as confirmed in Figures 6–7 and 10–11 of the datasheet. The command sequences and timing parameters are identical; either control signal can initiate latching, provided minimum pulse widths (40 ns) and setup/hold times are met. This flexibility simplifies interface design with diverse microcontroller families.
How is the SST39SF010A-55-4I-WHE protected against inadvertent writes during power-up?
The SST39SF010A-55-4I-WHE employs three hardware protections: (1) VDD power-up/down detection inhibits writes below 2.5V; (2) noise/glitch protection ignores WE# or CE# pulses shorter than 5 ns; and (3) Write Inhibit Mode activates when OE# is low, CE# is high, or WE# is high. These features ensure SST39SF010A-55-4I-WHE remains in read mode during power transients without external circuitry.
What package type is used for the SST39SF010A-55-4I-WHE, and is it RoHS-compliant?
The SST39SF010A-55-4I-WHE uses a 32-lead PLCC (Plastic Leaded Chip Carrier) package, as specified in Figure 2 and "Packages Available" section of the datasheet. It is explicitly stated as RoHS-compliant in the Features list and meets EU Directive 2011/65/EU. The PLCC footprint supports wave soldering and rework with standard 240°C surface-mount profiles.
Can the SST39SF010A-55-4I-WHE be used as a direct replacement for the SST39SF010A-70-4C-WHE?
Yes-the SST39SF010A-55-4I-WHE is pin-compatible and command-compatible with the -70 variant; only the read access time differs (55 ns vs. 70 ns). All DC characteristics, pinout, voltage ranges, timing modes, and software commands are identical. Systems designed for the -70 version will operate faster with the -55 part, with no PCB or firmware changes required for SST39SF010A-55-4I-WHE integration.
SST39SF010A-55-4I-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:
- 55 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-55-4I-WHE FAQ
1.How can I place an order for SST39SF010A-55-4I-WHE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST39SF010A-55-4I-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-55-4I-WHE reliable?
The price and inventory of SST39SF010A-55-4I-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-55-4I-WHE is usually 5 days.
3.What payment methods are accepted for SST39SF010A-55-4I-WHE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST39SF010A-55-4I-WHE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST39SF010A-55-4I-WHE?
SST39SF010A-55-4I-WHE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST39SF010A-55-4I-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-55-4I-WHE?
For technical support, including SST39SF010A-55-4I-WHE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST39SF010A-55-4I-WHE requirements.
6.How does Aetrix verify that SST39SF010A-55-4I-WHE is sourced from the original manufacturer or authorized distributors?
All SST39SF010A-55-4I-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-55-4I-WHE meets industry standards.
7.What is the process for return or replacement of SST39SF010A-55-4I-WHE?
All SST39SF010A-55-4I-WHE units undergo pre-shipment inspection (PSI). If there is an issue with SST39SF010A-55-4I-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-55-4I-WHE part is unused and in its original packaging.
Return procedure for SST39SF010A-55-4I-WHE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST39SF010A-55-4I-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…
