Infineon Technologies CY15V104QN20BFXIXQLA1
- Part No.:
- CY15V104QN20BFXIXQLA1
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UFLGA
- Datasheet:
-
CY15V104QN20BFXIXQLA1.pdf
- Description:
- IC FRAM 4MBIT SPI 8UFLGA
- Quantity:
- Payment:

- Shipping:

Inventory:1,139
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Product details
Overview
CY15V104QN20BFXIXQLA1 from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating at 1.71–1.89 V with SPI interface up to 50 MHz, 10¹⁵ write endurance, and 151-year data retention. It serves as nonvolatile memory in industrial data logging systems requiring instant writes without polling.
For engineers reviewing the CY15V104QN20BFXIXQLA1 datasheet, CY15V104QN20BFXIXQLA1 pinout, CY15V104QN20BFXIXQLA1 application, or CY15V104QN20BFXIXQLA1 equivalent, key selection criteria include guaranteed 50 MHz SPI timing, hardware/software write protection, dedicated 256-byte reflow-survivable sector, and industrial −40°C to +85°C operation.
Technical Context
The device implements an SPI slave interface compliant with modes 0 and 3, supporting opcode-driven read/write/erase commands without latency-writes complete within one SPI byte transfer cycle. Its F-RAM core eliminates erase-before-write and polling overhead inherent in flash/EEPROM.
On-chip logic includes a nonvolatile status register with WPEN bit, 8-byte programmable serial number, read-only Device ID (manufacturer + product ID), and dedicated 256-byte special sector retaining data across three reflow cycles. Power management supports deep power-down (0.70 µA) and hibernate (0.1 µA) modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8 bits), enabling compact storage for firmware metadata or sensor logs |
| SPI clock frequency | Up to 50 MHz, allowing 6.25 MB/s peak throughput for high-speed data capture |
| Write endurance | 10¹⁵ cycles, supporting continuous logging at 1 kHz for >31,700 years without wear-out |
| Data retention | 151 years at +85°C, eliminating periodic refresh or backup in sealed industrial enclosures |
| Supply voltage | 1.71–1.89 V, compatible with modern low-voltage SoC I/O domains and battery-backed systems |
| Operating temperature | −40°C to +85°C, qualified for deployment in motor drives, PLCs, and outdoor metering |
| Deep power-down current | 0.70 µA typical, enabling multi-year operation on coin-cell batteries in remote sensors |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), surface-mount, industry-standard footprint with 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby and tristates SO when HIGH; required falling edge before each opcode |
| SCK | Serial clock input | Synchronizes all SPI transfers; inputs latched on rising edge, outputs driven on falling edge; supports 0–50 MHz |
| SI | Serial input | Receives opcodes, addresses, and write data; sampled on SCK rising edge; must be driven to valid logic level |
| SO | Serial output | Drives read data during memory reads; tristated otherwise; transitions occur on SCK falling edge |
| WP | Write protect input | Hardware lock for status register writes when WPEN = 1; must tie to VDD if unused |
| VSS | Ground | Reference return path for all internal circuitry; requires low-impedance connection to system ground |
| VDD | Power supply | 1.71–1.89 V supply; powers core logic, F-RAM array, and I/O buffers |
| DNU | Do not use | No internal connection; must float or tie to VDD; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero write latency-data committed immediately after final SPI byte; no polling or timeout handling required |
| Dedicated 256-byte special sector | Retains calibration data or security keys through ≥3 standard reflow soldering cycles (JEDEC J-STD-020) |
| Multi-layer write protection | Hardware (WP pin) + software (WRDI instruction) + block-level (1/4, 1/2, full array) prevents accidental overwrites |
| Unique identification | Factory-programmed 64-bit Device ID + user-writable 8-byte serial number for board-level traceability |
| Ultra-low deep power-down | 0.70 µA typical current enables >10-year battery life in energy-harvesting sensor nodes |
Applications
| Industrial Data Logger | Smart Electricity Meter |
|---|---|
Use Scenario: Continuous timestamped recording of voltage/current waveforms at 10 kHz sampling rate. IC Role / Device Role / Timing Role: Nonvolatile buffer storing raw samples between host reads; operates as SPI slave with deterministic 50 MHz write bursts. Use Value: Eliminates flash wear leveling overhead and guarantees 10¹⁵-cycle durability for lifetime field deployment without replacement. | Use Scenario: Storing tamper-evident billing records and tariff tables in utility-grade meters with 15+ year service life. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile memory holding encrypted usage logs; accessed via SPI during meter wake-up cycles. Use Value: 151-year data retention ensures integrity across entire product lifecycle without backup power or refresh circuits. |
| PLC I/O Module | Medical Diagnostic Sensor Hub |
Use Scenario: Capturing real-time process alarms and diagnostic flags in factory automation controllers with <100 µs response deadlines. IC Role / Device Role / Timing Role: Instant-write F-RAM backing configuration registers and event history; interfaces directly to ARM Cortex-M7 SPI peripheral. Use Value: Zero-latency writes prevent data loss during brownouts or rapid state transitions where flash/EEPROM would stall. | Use Scenario: Storing calibrated sensor offsets and patient session metadata in portable ultrasound probes requiring FDA-compliant traceability. IC Role / Device Role / Timing Role: Trusted nonvolatile storage for 8-byte serial number and device-specific calibration coefficients; survives sterilization reflow cycles. Use Value: Dedicated 256-byte reflow-hardened sector preserves critical calibration data across manufacturing and field servicing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QN-SD20XIT | Wider VDD range (1.8–3.6 V); identical 4-Mb density, 50 MHz SPI, and F-RAM architecture | Supports mixed-voltage systems (e.g., 3.3 V host with 1.8 V peripherals); not suitable for 1.71–1.89 V only rails | Select when system VDD exceeds 1.89 V or shares supply with 3.3 V logic |
| FM25V04-G | Cypress (now Infineon) 4-Mb F-RAM; same 512K × 8 organization but 40 MHz max SPI speed and 1.7–2.2 V operation | Limited to lower clock rates; lacks dedicated reflow-hardened sector and unique ID registers | Choose only if 40 MHz bandwidth suffices and reflow survivability is not required |
Compared with CY15B104QN-SD20XIT and FM25V04-G, CY15V104QN20BFXIXQLA1 delivers optimal performance in 1.8 V systems demanding maximum SPI bandwidth, guaranteed reflow resilience, and full traceability-making it the preferred choice for next-generation industrial edge nodes.
Availability
CY15V104QN20BFXIXQLA1 is available at Aetrix Electronics and suitable for industrial data loggers, smart electricity meters, PLC I/O modules, and medical diagnostic sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for CY15V104QN20BFXIXQLA1 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.
CY15V104QN belongs to the EXCELON™ LP F-RAM product line, engineered for industrial and medical applications demanding instant-write nonvolatility, extreme endurance, and long-term data integrity without backup capacitors or complex firmware.
FAQ
Is CY15V104QN20BFXIXQLA1 pin-compatible with standard SPI EEPROMs or flash devices?
No-it is not a drop-in replacement for legacy SPI EEPROM or flash. While it uses the same 8-pin SOIC package and SPI command set (e.g., Read, Write, WREN), its instant-write behavior, absence of write-cycle delays, and dedicated F-RAM-specific registers (e.g., special sector access, Device ID) require firmware adaptation. Pin mapping matches standard SPI conventions (CS, SCK, SI, SO, WP, VDD, VSS), but DNU must be handled per datasheet guidance.
What is the purpose of the DNU pin, and how should it be connected?
The DNU (Do Not Use) pin has no internal connection and must either be left floating or tied to VDD. It is not electrically active and serves no functional role. Leaving it unconnected meets Infineon's recommended layout practice; tying to VDD provides noise immunity in high-EMI environments but is not required for operation.
Does the 256-byte special sector retain data during solder reflow, and what is the qualification standard?
Yes-the dedicated 256-byte special sector is qualified to survive three standard JEDEC J-STD-020 reflow cycles (peak 260°C). This capability is verified during wafer fabrication and allows storage of calibration data, security keys, or serial numbers that persist through PCB assembly and field repair without external backup.
How does the WP pin interact with the WPEN bit in the status register?
When WPEN = 1 in the status register, the WP pin becomes active-low hardware protection for status register writes only. It does not block memory array writes. If WP is LOW while WPEN = 1, status register modifications (e.g., changing block protection bits) are disabled. WP must be HIGH or WPEN = 0 to modify the status register; memory writes remain fully enabled regardless of WP state.
CY15V104QN20BFXIXQLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-UFLGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 20 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)
CY15V104QN20BFXIXQLA1 FAQ
1.How can I place an order for CY15V104QN20BFXIXQLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QN20BFXIXQLA1 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 CY15V104QN20BFXIXQLA1 reliable?
The price and inventory of CY15V104QN20BFXIXQLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QN20BFXIXQLA1 is usually 5 days.
3.What payment methods are accepted for CY15V104QN20BFXIXQLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QN20BFXIXQLA1 transactions.
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CY15V104QN20BFXIXQLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QN20BFXIXQLA1 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 CY15V104QN20BFXIXQLA1?
For technical support, including CY15V104QN20BFXIXQLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QN20BFXIXQLA1 requirements.
6.How does Aetrix verify that CY15V104QN20BFXIXQLA1 is sourced from the original manufacturer or authorized distributors?
All CY15V104QN20BFXIXQLA1 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 CY15V104QN20BFXIXQLA1 meets industry standards.
7.What is the process for return or replacement of CY15V104QN20BFXIXQLA1?
All CY15V104QN20BFXIXQLA1 units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QN20BFXIXQLA1, 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 CY15V104QN20BFXIXQLA1 part is unused and in its original packaging.
Return procedure for CY15V104QN20BFXIXQLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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