Infineon Technologies CY15V104QSN-108LPXI
- Part No.:
- CY15V104QSN-108LPXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V104QSN-108LPXI.pdf
- Description:
- IC FRAM 4MBIT SPI/QUAD 8GQFN
- Quantity:
- Payment:

- Shipping:

Inventory:375
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Product details
Overview
CY15V104QSN-108LPXI from Infineon is a 4 Mb ferroelectric RAM (F-RAM) organized as 512K × 8, supporting quad SPI (QPI) up to 108 MHz SDR and 54 MHz DDR, with 100 trillion (10¹⁴) read/write endurance, 151-year data retention, and 1.71–1.89 V operation for industrial applications including real-time data logging in PLCs and sensor edge nodes.
For engineers reviewing the CY15V104QSN-108LPXI datasheet, CY15V104QSN-108LPXI pinout, CY15V104QSN-108LPXI application, or CY15V104QSN-108LPXI equivalent, key selection criteria include non-volatile write speed at bus frequency, on-die ECC/CRC integrity features, low-power deep power-down current (0.80 µA), and SOIC-8 package compatibility with legacy PCB layouts.
Technical Context
The device implements a true RAM-like interface over quad SPI with no write latency-data commits immediately upon byte transfer without polling. Its ferroelectric memory array eliminates erase-before-write cycles and supports Execute-in-Place (XIP) for direct code execution from non-volatile memory.
It integrates dual status registers (SR1/SR2), four configuration registers (CR1–CR4, CR5), and dedicated control logic for hardware write protection (WP pin), software block protection, and CRC/ECC error handling per 8-byte unit-enabling deterministic timing in safety-critical data capture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (512K × 8), enabling storage of 64 KB of firmware or telemetry logs without external buffering |
| SPI interface modes | SDR up to 108 MHz / DDR up to 54 MHz; QPI, DPI, and standard SPI supported for flexible host controller compatibility |
| Endurance | 10¹⁴ read/write cycles - sustains continuous 100 Hz logging for >31 years without wear-out |
| Data retention | 151 years at +85°C - eliminates periodic refresh or backup power requirements in unattended systems |
| Power consumption | 10 mA active (108 MHz SDR), 110 µA standby, 0.80 µA deep power-down - enables battery-backed operation for >10 years |
| Voltage range | 1.71 V to 1.89 V - optimized for modern low-voltage microcontrollers and SoCs with 1.8 V I/O rails |
| Operating temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor metering environments |
Pinout & Package
Package: 8-pin SOIC (SOIC-8, 150 mil width), RoHS-compliant, surface-mountable with standard reflow profile support.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command decoding; must be asserted before SCK edge to initiate transaction |
| SCK | Serial Clock | Master-generated clock; supports SDR (108 MHz) and DDR (54 MHz) modes with configurable phase/polarity (Mode 0/3) |
| SI (I/O0) | Serial Input / Quad I/O Line 0 | Input for standard SPI; functions as bidirectional I/O0 in QPI mode for address/data multiplexing |
| SO (I/O1) | Serial Output / Quad I/O Line 1 | Output for standard SPI; functions as bidirectional I/O1 in QPI mode during read bursts |
| WP (I/O2) | Write Protect Input / Quad I/O Line 2 | Hardware-level write lock; when driven low, blocks all write/status register modifications regardless of software state |
| RESET (I/O3) | Reset Input / Quad I/O Line 3 | Asynchronous reset pin; also serves as I/O3 in QPI mode; configurable via CR2[5] (IO3R bit) |
| VDD | Power Supply | 1.71–1.89 V core supply; decoupling capacitor required within 5 mm for stable high-speed operation |
| VSS | Ground | Reference return path for all digital and memory array circuits; must be low-impedance plane connection |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated 256-byte special sector | Retains data through ≥3 standard Pb-free reflow cycles - enables secure boot code or calibration constants storage in system firmware |
| On-die ECC | Detects and corrects 1-bit errors per 8-byte unit; reports uncorrectable 2-bit errors via status register - eliminates need for external error-handling logic |
| CRC integrity check | Configurable CRC engine verifies full memory array contents - supports field-upgrade validation and tamper detection workflows |
| User-programmable serial number | Read-only 64-bit unique ID per device - enables board-level traceability and counterfeit prevention in OEM production |
| Instant non-volatile write | No write delay or polling required - guarantees atomic writes at full bus speed, critical for power-fail-safe data capture |
Applications
| Industrial Data Logger | Smart Meter Firmware Storage |
|---|---|
|
Use Scenario: Continuous voltage/current sampling in DIN-rail mounted energy monitors with 100 ms interval writes. IC Role / Device Role / Timing Role: Non-volatile scratchpad memory holding last 10,000 samples; accepts writes at 10 kHz burst rate without latency. Use Value: Eliminates flash wear leveling overhead and prevents data loss during mains dropout due to zero-write-latency behavior. |
Use Scenario: Storing tariff tables, billing counters, and cryptographic keys in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, long-retention configuration store with ECC-protected reads and hardware WP pin lockdown. Use Value: Meets 20-year field life requirement with guaranteed 151-year data retention and tamper-resilient serial number binding. |
| PLC I/O Module Buffer | Medical Sensor Edge Node |
|
Use Scenario: Local buffering of analog input channel history in modular programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: High-endurance F-RAM acting as cyclic buffer for 16-channel 1 kHz ADC streams with timestamp metadata. Use Value: Withstands 10¹⁴ cycles - supports 100+ years of continuous operation at 1 kHz write rate without degradation. |
Use Scenario: Wearable ECG patch storing raw waveform snippets during intermittent Bluetooth transmission windows. IC Role / Device Role / Timing Role: Ultra-low-power non-volatile memory enabling 0.80 µA deep power-down between 5-second sensing intervals. Use Value: Extends single-CR2032 battery life beyond 36 months while preserving diagnostic-grade signal fidelity via on-die CRC verification. |
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 |
|---|---|---|---|
| CY15B104QSN-108LPXI | Wider VDD range (1.8–3.6 V); identical pinout, timing, and feature set except voltage tolerance | Required for mixed-voltage systems with 3.3 V MCU interfaces; not suitable for 1.8 V-only designs | Select when host MCU operates above 1.89 V or requires backward compatibility with legacy 3.3 V peripherals |
| FM25V04-G | 4 Mb F-RAM, SPI SDR only (max 40 MHz), no DDR/QPI, no on-die ECC/CRC, 1.7–2.2 V | Lacks high-speed QPI and integrity features; suited for cost-sensitive, lower-bandwidth logging | Choose where 108 MHz bandwidth and ECC are non-critical, and BOM cost reduction outweighs reliability trade-offs |
Compared with CY15B104QSN-108LPXI, the CY15V104QSN-108LPXI offers tighter voltage regulation for 1.8 V systems but sacrifices 3.3 V interoperability; versus FM25V04-G, it delivers 2.7× faster write throughput and built-in data integrity - essential for real-time industrial control loops.
Availability
CY15V104QSN-108LPXI is available at Aetrix Electronics and suitable for industrial data loggers, smart meter firmware storage, and PLC I/O module buffers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for CY15V104QSN-108LPXI 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 manufacturer specializing in power management, automotive ICs, and high-reliability memory solutions.
This part belongs to the EXCELON™ Ultra F-RAM product line, engineered specifically for industrial and automotive applications demanding instant-write non-volatility, extreme endurance, and deterministic timing under thermal stress.
FAQ
Does CY15V104QSN-108LPXI support execute-in-place (XIP) operation?
Yes, the device supports XIP for memory reads and writes, allowing microcontrollers to execute code directly from the F-RAM array without copying to SRAM. This reduces boot time and simplifies memory mapping in resource-constrained embedded systems, with verified timing across the full –40°C to +85°C range.
How does the on-die ECC handle multi-bit errors?
The ECC logic detects and corrects exactly one bit error per 8-byte data unit. If two or more bits flip in the same unit, correction is not attempted, but the ECC status register (SR2[1]) flags the uncorrectable condition - enabling host firmware to trigger data recovery or alert protocols before corruption propagates.
What is the purpose of the dedicated 256-byte special sector?
This sector retains its contents through up to three standard Pb-free reflow cycles (JEDEC J-STD-020), making it ideal for storing immutable firmware headers, calibration coefficients, or cryptographic keys that must survive PCB assembly. It is accessed via separate opcodes and protected independently from main array writes.
Can the RESET pin be used as a general-purpose I/O in QPI mode?
Yes, when Configuration Register 2 bit IO3R (CR2[5]) is set to '1', the RESET pin functions as I/O3 in quad SPI mode. However, doing so disables asynchronous hardware reset capability - requiring software-initiated reset sequences or external supervision circuitry for safe recovery scenarios.
CY15V104QSN-108LPXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-Ultra, F-RAM™
- Package/Case:
- 8-UQFN
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 108 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15V104QSN-108LPXI FAQ
1.How can I place an order for CY15V104QSN-108LPXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QSN-108LPXI 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 CY15V104QSN-108LPXI reliable?
The price and inventory of CY15V104QSN-108LPXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QSN-108LPXI is usually 5 days.
3.What payment methods are accepted for CY15V104QSN-108LPXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QSN-108LPXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QSN-108LPXI?
CY15V104QSN-108LPXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QSN-108LPXI 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 CY15V104QSN-108LPXI?
For technical support, including CY15V104QSN-108LPXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QSN-108LPXI requirements.
6.How does Aetrix verify that CY15V104QSN-108LPXI is sourced from the original manufacturer or authorized distributors?
All CY15V104QSN-108LPXI 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 CY15V104QSN-108LPXI meets industry standards.
7.What is the process for return or replacement of CY15V104QSN-108LPXI?
All CY15V104QSN-108LPXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QSN-108LPXI, 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 CY15V104QSN-108LPXI part is unused and in its original packaging.
Return procedure for CY15V104QSN-108LPXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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