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Microchip Technology SST25VF032B-80-4I-QAE
- Part No.:
- SST25VF032B-80-4I-QAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25VF032B-80-4I-QAE.pdf
- Description:
- IC FLASH 32MBIT SPI 80MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,911
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Product details
Overview
SST25VF032B-80-4I-QAE from Microchip is a 32 Mbit SPI serial flash memory IC with 2.7–3.6 V single-supply operation, 80 MHz high-speed read capability, and uniform 4 KByte/32 KByte/64 KByte erase granularity-used for firmware storage and boot code in industrial microcontroller systems.
For engineers reviewing the SST25VF032B-80-4I-QAE datasheet, SST25VF032B-80-4I-QAE pinout, SST25VF032B-80-4I-QAE application, or SST25VF032B-80-4I-QAE equivalent, key selection considerations include SPI Mode 0/3 compatibility, industrial temperature range (−40°C to +85°C), AAI word programming support, hardware-ready/busy status via SO pin, and software block protection with BPL lock-down.
Technical Context
The SST25VF032B-80-4I-QAE implements a four-wire SPI interface compliant with Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), supporting command-driven operations including High-Speed Read (0BH), Byte-Program (02H), AAI-Word-Program (ADH), and sector/block/Chip-Erase instructions. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling for enhanced endurance and data retention.
It features dual end-of-write detection: software polling of BUSY bit (bit 0) in the status register and hardware RY/BY# output on SO pin when enabled via EBSY (70H) command. Block protection is managed through BP3–BP0 bits with lock-down control via BPL bit and WP# pin activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte) organized as uniform 4 KByte sectors, 32 KByte and 64 KByte overlay blocks |
| Read Speed | Up to 80 MHz using High-Speed Read (0BH) instruction with dummy cycle; 25 MHz for standard Read (03H) |
| Write Endurance | 100,000 program/erase cycles per sector-supports frequent firmware updates in field-deployed devices |
| Data Retention | Greater than 100 years at +85°C-ensures long-term reliability in unattended industrial applications |
| Supply Voltage | 2.7–3.6 V single supply-compatible with 3.3 V logic systems without level-shifting |
| Operating Temp | Industrial range: −40°C to +85°C-validated for use in motor drives, PLCs, and outdoor edge nodes |
| Active Current | 10 mA typical during 80 MHz read-enables low-power boot loading in battery-backed systems |
| Standby Current | 5 µA typical-minimizes quiescent power in always-on embedded controllers |
Pinout & Package
Package: 8-contact WSON (5 mm × 6 mm, 0.65 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence; high-to-low transition initiates instruction acceptance |
| SO | Serial Data Output / RY/BY# | Primary data output; configurable as hardware ready/busy indicator during AAI programming when EBSY (70H) issued |
| WP# | Write Protect | Enables BPL lock-down of status register; low = BPL bit controls BP3–BP0 writability; high = unrestricted write to BP bits |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without deselecting device; allows host to service higher-priority interrupts mid-sequence |
| SCK | Serial Clock | Timing reference for SPI; rising edge latches SI input; falling edge shifts SO output; supports Mode 0 and Mode 3 polarity/phasing |
| SI | Serial Data Input | Command, address, and data input path; MSB-first; sampled on SCK rising edge |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling capacitor required per layout guidelines |
| VSS | Ground | Reference return for all signals and power; requires low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating repeated address transmission-critical for fast firmware patching |
| Flexible Erase Architecture | Independent 4 KByte sector, 32 KByte block, and 64 KByte block erase options enable granular firmware update without full chip erase |
| Hardware Ready/Busy Signaling | SO pin doubles as RY/BY# during AAI mode-eliminates need for software polling and reduces CPU overhead |
| Software Block Protection with Lock-Down | BP3–BP0 bits protect up to entire array; BPL bit (enabled by WP#) prevents accidental modification of protection settings in field |
| SuperFlash Technology | Split-gate cell design delivers 100K endurance and >100-year data retention-superior to standard NOR flash in harsh environments |
| SPI Mode 0 & Mode 3 Compatibility | Interoperable with diverse host controllers (e.g., ARM Cortex-M, Renesas RX, TI MSP430) without protocol translation logic |
Applications
| Firmware Storage | Boot Code Execution |
|---|---|
Use Scenario: Storing application firmware images updated over CAN or UART in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile storage for field-upgradable firmware binaries accessed via SPI during boot or runtime. Use Value: 80 MHz read speed enables sub-100 ms boot time; 4 KByte sector erase allows delta updates without erasing full image. |
Use Scenario: Hosting XIP-capable boot code for ARM Cortex-M4 microcontrollers in industrial gateways. IC Role / Device Role / Timing Role: Primary boot memory mapped via QSPI or memory-mapped SPI interface at power-on reset. Use Value: 100,000-cycle endurance supports repeated bootloader validation; BPL lock-down prevents corruption of secure boot vectors. |
| Configuration Data Logging | Secure Parameter Storage |
Use Scenario: Recording calibration coefficients and operational logs in HVAC control panels operating at −40°C ambient. IC Role / Device Role / Timing Role: Persistent parameter store written infrequently but read continuously during runtime. Use Value: 5 µA standby current extends battery life in maintenance-free installations; 100-year retention ensures data integrity across product lifetime. |
Use Scenario: Storing cryptographic keys and device identity tokens in medical infusion pumps requiring IEC 62304 compliance. IC Role / Device Role / Timing Role: Tamper-resistant non-volatile memory with software write protection enforced by BP/BPL bits. Use Value: WP#-enabled BPL lock-down prevents unauthorized reprogramming of security-critical parameters post-certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI serial flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q32JVSSIQ | 32 Mbit, 104 MHz max read, Quad SPI support, no AAI mode, different status register layout | Lacks AAI programming and hardware RY/BY# on SO; requires host-side address management for bulk writes | Preferred where quad I/O bandwidth is needed and AAI is unused; not drop-in due to command set and protection register differences |
| Macronix MX25L3233FZBI-10G | 32 Mbit, 104 MHz read, supports DTR mode, different block protection scheme (SRWD bit instead of BPL) | Uses SRWD-based write protection; no HOLD# pin; lacks dedicated hardware busy signaling on SO | Selected for high-throughput read-heavy applications; requires redesign of write-protection logic and timing-critical hold sequences |
Compared with SST25VF032B-80-4I-QAE, W25Q32JVSSIQ offers higher read bandwidth but removes AAI acceleration and hardware RY/BY#, while MX25L3233FZBI-10G provides faster clock rates but eliminates HOLD# and uses incompatible protection semantics-both require firmware and layout changes.
Availability
SST25VF032B-80-4I-QAE is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and automotive body electronics requiring stable component supply and long-term lifecycle support.
Supply support for SST25VF032B-80-4I-QAE 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions for industrial, automotive, and communications markets.
The SST25VF032B-80-4I-QAE belongs to Microchip's SST25 serial flash product line, designed specifically for cost-sensitive, space-constrained embedded systems needing reliable, low-pin-count non-volatile storage with robust write protection and fast read performance.
FAQ
What is the maximum clock frequency supported by SST25VF032B-80-4I-QAE for read operations?
The SST25VF032B-80-4I-QAE supports up to 80 MHz for High-Speed Read (0BH) operations, which includes one dummy cycle after address transmission. Standard Read (03H) is rated to 25 MHz. Both modes operate within the specified 2.7–3.6 V supply range and industrial temperature conditions. The "80" in the part number explicitly denotes this 80 MHz capability.
Does SST25VF032B-80-4I-QAE support SPI Mode 3, and how is it configured?
Yes, SST25VF032B-80-4I-QAE natively supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). No configuration is required-the device automatically adapts to the host's clock polarity and phase. In Mode 3, SCK idles high, and data is sampled on the rising edge (SI) and shifted out on the falling edge (SO), matching standard SPI controller behavior.
How does the Auto Address Increment (AAI) feature work in SST25VF032B-80-4I-QAE?
In SST25VF032B-80-4I-QAE, AAI mode is entered by issuing the ADH command followed by an address and two data bytes. Subsequent ADH commands auto-increment the address by two bytes, eliminating the need to resend addresses for sequential word programming. AAI remains active until WRDI (04H) is issued, and only ADH, WRDI, and RDSR are valid during AAI sequences.
What is the function of the HOLD# pin on SST25VF032B-80-4I-QAE, and when is it used?
The HOLD# pin on SST25VF032B-80-4I-QAE suspends an ongoing SPI transaction without deselecting the device or resetting internal state. It is asserted low while CE# remains active low, placing SO in high-impedance and pausing clock synchronization. This allows the host MCU to service interrupts or manage bus arbitration mid-command, resuming seamlessly upon HOLD# deassertion.
Can SST25VF032B-80-4I-QAE be used in systems requiring data retention beyond 10 years?
Yes-SST25VF032B-80-4I-QAE guarantees greater than 100 years of data retention at +85°C, far exceeding typical 10-year requirements. This specification is validated under worst-case voltage and temperature stress conditions and applies to all memory locations, including those protected by BP bits. Retention is unaffected by erase/write cycling within the 100,000-cycle endurance limit.
SST25VF032B-80-4I-QAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON
SST25VF032B-80-4I-QAE FAQ
1.How can I place an order for SST25VF032B-80-4I-QAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF032B-80-4I-QAE 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 SST25VF032B-80-4I-QAE reliable?
The price and inventory of SST25VF032B-80-4I-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF032B-80-4I-QAE is usually 5 days.
3.What payment methods are accepted for SST25VF032B-80-4I-QAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF032B-80-4I-QAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF032B-80-4I-QAE?
SST25VF032B-80-4I-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF032B-80-4I-QAE 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 SST25VF032B-80-4I-QAE?
For technical support, including SST25VF032B-80-4I-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF032B-80-4I-QAE requirements.
6.How does Aetrix verify that SST25VF032B-80-4I-QAE is sourced from the original manufacturer or authorized distributors?
All SST25VF032B-80-4I-QAE 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 SST25VF032B-80-4I-QAE meets industry standards.
7.What is the process for return or replacement of SST25VF032B-80-4I-QAE?
All SST25VF032B-80-4I-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF032B-80-4I-QAE, 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 SST25VF032B-80-4I-QAE part is unused and in its original packaging.
Return procedure for SST25VF032B-80-4I-QAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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