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Infineon Technologies CY15V108QN-40BFXIT
- Part No.:
- CY15V108QN-40BFXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UFLGA
- Datasheet:
-
CY15V108QN-40BFXIT.pdf
- Description:
- IC FRAM 8MBIT SPI 8UFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,981
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Product details
Overview
CY15V108QN-40BFXIT from Infineon is an 8 Mb serial ferroelectric RAM (F-RAM) organized as 1024K × 8, operating at up to 40 MHz SPI clock, with 1.71–1.89 V supply, industrial temperature range (–40°C to +85°C), and 10¹⁵ read/write endurance. It serves as a non-volatile memory replacement for EEPROM/flash in data-logging systems requiring instant write, zero latency, and high reliability.
For engineers reviewing the CY15V108QN-40BFXIT datasheet, CY15V108QN-40BFXIT pinout, CY15V108QN-40BFXIT application, or CY15V108QN-40BFXIT equivalent, this device delivers bus-speed writes without polling, 151-year data retention, hardware/software write protection, and SPI mode 0/3 compatibility - critical for real-time industrial control and edge sensor nodes.
Technical Context
The CY15V108QN-40BFXIT implements a true SPI slave interface with zero-write-latency F-RAM core, eliminating erase cycles and enabling immediate byte-level writes at full 40 MHz bus speed. Its internal architecture includes a dedicated 256-byte special sector surviving three reflow cycles, plus non-volatile Device ID and writable 8-byte serial number registers.
It supports dual write protection: hardware via active-low WP pin (when WPEN=1) and software via WRDI instruction and block-protection bits (BP0/BP1) for 1/4, 1/2, or full array lock. The status register is non-volatile and retains protection settings across power cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 8 Mb (1024K × 8 bits) - supports large-scale logging buffers without external memory expansion |
| SPI max frequency | 40 MHz - enables 4 MB/s sustained write throughput, matching microcontroller SPI peripheral limits |
| Data retention | 151 years at 85°C - eliminates periodic refresh or backup power requirements in sealed industrial enclosures |
| Endurance | 10¹⁵ read/write cycles - sustains >1000 writes/sec continuously for 31+ years without wear-out |
| Supply voltage | 1.71 V to 1.89 V - compatible with 1.8 V logic domains and low-power SoC interfaces |
| Operating temp | –40°C to +85°C - qualified for deployment in motor drives, PLC I/O modules, and outdoor metering |
| Deep power-down current | 0.90 µA (typ) - enables battery-backed operation for >10 years on a single CR2032 cell |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, surface-mount, standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Active-low chip select input | Enables SPI communication; HIGH places device in standby (3.5 µA), tristates SO |
| SCK | Serial clock input | Synchronizes all I/O; rising edge latches SI, falling edge drives SO; supports 0–40 MHz, interruptible |
| SI | Serial data input | Receives opcodes, addresses, and write data; must be driven to valid logic level to meet IDD specs |
| SO | Serial data output | Drives read data on falling SCK edge; tristated during all non-read operations |
| WP | Write protect input | Hardware lock for status register when WPEN=1; must tie to VDD if unused |
| VSS | Ground reference | System ground connection; required for stable internal bias and noise immunity |
| VDD | Power supply | 1.71–1.89 V input; powers core and I/O; decoupling capacitor mandatory per datasheet layout guidelines |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - not a no-connect for signal routing |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero latency - data committed immediately after byte transfer; no polling or timeout handling needed in firmware |
| Dedicated 256-byte special sector | Retains content through ≥3 reflow cycles - enables permanent board identification or calibration storage in final assembly |
| Multi-layer write protection | Hardware (WP pin) + software (WRDI, BP bits) + non-volatile status register - prevents accidental overwrites in field-deployed units |
| Unique device ID & serial number | Factory-programmed 64-bit ID + user-writable 8-byte serial register - supports secure device authentication and traceability |
| Ultra-low deep power-down | 0.90 µA typical - extends battery life in wireless sensor nodes where wake-up intervals exceed hours |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (voltage, current, temperature) at 100 Hz with power-loss resilience. IC Role / Device Role / Timing Role: Primary non-volatile buffer storing last 72 hours of raw measurements before upload. Use Value: Eliminates flash wear leveling overhead and guarantees write success even during brownout events due to instant write capability. |
Use Scenario: Storing tariff schedules, billing cycles, and tamper-event logs in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Secure, long-retention memory for regulatory-compliant audit trails and firmware configuration. Use Value: Meets IEC 62056-21 151-year data retention requirement without supercapacitor backup circuitry. |
| PLC I/O Module | Medical Diagnostic Sensor Hub |
Use Scenario: Capturing process alarms and state transitions in programmable logic controllers with <10 ms response deadlines. IC Role / Device Role / Timing Role: Real-time event recorder synchronized to deterministic scan cycle timing. Use Value: Enables sub-millisecond write commit time - avoids missed events during rapid fault sequences. |
Use Scenario: Storing calibration coefficients, sensor self-test results, and patient session metadata in portable ultrasound probes. IC Role / Device Role / Timing Role: Trusted non-volatile storage for FDA-required device history and traceability records. Use Value: Survives repeated sterilization cycles and reflow soldering, ensuring lifetime integrity of medical-grade identifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-volatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B108QN-40BFXIT | Wider VDD range (1.8–3.6 V); same density, timing, and F-RAM core | Supports mixed-voltage systems (e.g., 3.3 V MCU with 1.8 V peripherals) | Select when system rail flexibility outweighs strict 1.8 V optimization |
| FM25V05-G | Cypress (Infineon) 512 Kb F-RAM; 1.8–3.6 V; 40 MHz; SOIC-8 | Limited to smaller buffer sizes; lacks special sector and serial number registers | Choose only for cost-sensitive, low-capacity use cases where 8 Mb is unnecessary |
Compared with CY15B108QN-40BFXIT, the CY15V108QN-40BFXIT offers tighter voltage tolerance ideal for 1.8 V-only designs, while FM25V05-G trades capacity and advanced features for lower unit cost in sub-1 Mb applications.
Availability
CY15V108QN-40BFXIT is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, PLC I/O modules, and medical diagnostic sensor hubs requiring stable component supply and guaranteed long-term manufacturability.
Supply support for CY15V108QN-40BFXIT 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
Infineon Technologies is a German semiconductor leader specializing in power management, automotive ICs, and reliable non-volatile memory solutions for mission-critical systems.
This device belongs to the EXCELON™ LP F-RAM product line, engineered specifically for high-endurance, zero-latency non-volatile storage in industrial automation, energy infrastructure, and medical devices where flash/EEPROM limitations cause system-level risk.
FAQ
Is CY15V108QN-40BFXIT pin-compatible with standard SPI EEPROMs or flash devices?
Yes - it uses industry-standard 8-pin SOIC with identical CS/SCK/SI/SO/WP/VSS/VDD pin assignments and SPI mode 0/3 protocol. No PCB redesign is needed when replacing legacy serial EEPROMs like AT25DF041 or flash such as MX25L4005, though firmware must disable polling loops due to instant write behavior.
Does the 256-byte special sector require separate addressing or commands?
Yes - it is accessed using dedicated opcodes (0x77 for read, 0x76 for write) and occupies address range 0xFFFC00–0xFFFCFF. Unlike main array access, special sector reads/writes bypass status register protection and retain data across reflow, making it ideal for immutable board IDs or factory calibration data.
How does write protection behave during power loss or brownout conditions?
Hardware WP pin protection remains active as long as VDD > 1.5 V; software protection (WPEN, BP bits) is stored in non-volatile status register and survives power cycles. During brownout, the device halts writes automatically - no partial writes or corruption occurs due to F-RAM's intrinsic bit-level write atomicity.
Can the unique device ID be overwritten or disabled?
No - the 64-bit Device ID is factory-laser-programmed and read-only. It cannot be altered, erased, or disabled. The separate 8-byte serial number register is user-writable via opcode 0x1B but resides in standard F-RAM array and obeys normal write protection rules - it is not fused or one-time-programmable.
CY15V108QN-40BFXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-UFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 9 ns
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UFLGA (3.28x3.23)
CY15V108QN-40BFXIT FAQ
1.How can I place an order for CY15V108QN-40BFXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V108QN-40BFXIT 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 CY15V108QN-40BFXIT reliable?
The price and inventory of CY15V108QN-40BFXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V108QN-40BFXIT is usually 5 days.
3.What payment methods are accepted for CY15V108QN-40BFXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V108QN-40BFXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V108QN-40BFXIT?
CY15V108QN-40BFXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V108QN-40BFXIT 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 CY15V108QN-40BFXIT?
For technical support, including CY15V108QN-40BFXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V108QN-40BFXIT requirements.
6.How does Aetrix verify that CY15V108QN-40BFXIT is sourced from the original manufacturer or authorized distributors?
All CY15V108QN-40BFXIT 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 CY15V108QN-40BFXIT meets industry standards.
7.What is the process for return or replacement of CY15V108QN-40BFXIT?
All CY15V108QN-40BFXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY15V108QN-40BFXIT, 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 CY15V108QN-40BFXIT part is unused and in its original packaging.
Return procedure for CY15V108QN-40BFXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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