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Infineon Technologies CY15V104QN-20LPXCT
- Part No.:
- CY15V104QN-20LPXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V104QN-20LPXCT.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,730
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Product details
Overview
CY15V104QN-20LPXCT from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating on SPI interface at up to 50 MHz with 1.71–1.89 V supply, 10¹⁵ write endurance, and 151-year data retention. It serves as nonvolatile memory in real-time data logging systems where instant write, low power, and industrial temperature (–40°C to +85°C) are critical.
For engineers reviewing the CY15V104QN-20LPXCT datasheet, CY15V104QN-20LPXCT pinout, CY15V104QN-20LPXCT application, or CY15V104QN-20LPXCT equivalent, this device delivers bus-speed writes without polling, hardware/software write protection, Device ID/serial number registers, and a dedicated 256-byte reflow-survivable special sector - key for firmware-critical embedded recorders and sensor nodes.
Technical Context
The CY15V104QN-20LPXCT implements an SPI slave interface supporting modes 0 and 3, with zero-latency write execution: each byte written immediately commits to nonvolatile memory without delay or status polling. Its internal architecture integrates a 512K × 8 main F-RAM array, a separate 256-byte special sector, nonvolatile status register, Device ID, and 8-byte writable serial number registers.
Write protection is enforced via dual-layer control: hardware-level WP pin (active-low) combined with software-configurable status register bits (WPEN, BP0–BP2), enabling selective block protection of 1/4, 1/2, or full memory. Power management includes deep power-down (0.70 µA typ) and hibernate (0.1 µA typ) modes, optimized for battery-backed industrial telemetry endpoints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8), directly replaceable for 4-Mb SPI flash/EEPROM in same footprint |
| Interface speed | Up to 50 MHz SPI clock - enables 5 MB/s sustained write throughput without wait states |
| Endurance | 10¹⁵ read/write cycles - supports >100 years of continuous 100-Hz logging at full array depth |
| Data retention | 151 years at +85°C - eliminates periodic refresh or backup power requirements |
| Supply voltage | 1.71 V to 1.89 V - compatible with 1.8 V logic domains and ultra-low-power SoC interfaces |
| Operating temp | –40°C to +85°C industrial grade - qualified for unheated outdoor metering and factory-floor controllers |
| Deep power-down | 0.70 µA typical - extends coin-cell life beyond 10 years in maintenance-free sensor tags |
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 | Chip Select input | Active-low enable: drives device into standby when HIGH; falling edge initiates every SPI transaction |
| SCK | Serial clock input | Synchronizes all I/O; rising edge samples SI, falling edge outputs SO; supports 0–50 MHz with interruptible clock |
| SI | Serial data input | Accepts opcodes, addresses, and write data; must be driven to valid logic level to meet IDD specs |
| SO | Serial data output | Drives read data during read cycles only; tristated otherwise; transitions on SCK falling edge |
| WP | Write protect input | Hardware lock: prevents 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 plane |
| VDD | Power supply | 1.71–1.89 V input; powers core logic, F-RAM array, and I/O buffers; bypass capacitor required |
| DNU | Do-not-use terminal | No internal connection; must remain floating or tied to VDD - not a test pad or thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| Instant nonvolatile write | Zero write latency: data committed on final SCK edge - no polling, no timeout handling in firmware |
| Dedicated special sector | 256-byte F-RAM region survives ≥3 reflow cycles - stores calibration constants or secure boot keys pre-solder |
| Multi-layer write protection | Hardware (WP pin) + software (WRDI instruction + BP bits) - prevents accidental overwrites in field-deployed units |
| Unique identification | Read-only Device ID + writable 8-byte serial number - enables per-unit traceability and anti-cloning in IIoT gateways |
| Ultra-low deep power-down | 0.70 µA typical current - allows >10-year operation on CR2032 in wireless sensor nodes with infrequent wake-ups |
Applications
| Smart Energy Metering | Industrial PLC Data Logging |
|---|---|
Use Scenario: Continuous timestamped energy consumption recording with 1-second resolution and tamper-proof audit trail. IC Role / Device Role / Timing Role: Nonvolatile storage for rolling 7-day kWh history, storing values instantly on each pulse without risking loss during power interruption. Use Value: 10¹⁵ endurance ensures >300 years of daily 10,000-write cycles; 151-year retention guarantees compliance with utility archival mandates. | Use Scenario: Capturing machine vibration, temperature, and pressure snapshots during unscheduled maintenance windows in factory automation. IC Role / Device Role / Timing Role: High-speed buffer between analog front-end and Ethernet upload - writes sensor bursts at bus speed while host prepares transmission. Use Value: 50 MHz SPI enables 5 MB/s capture rate; zero-write-latency prevents data gaps during rapid transients or brownouts. |
| Medical Wearable Telemetry | Automotive ADAS Event Recorder |
Use Scenario: Storing ECG waveform snippets triggered by arrhythmia detection in battery-powered patch monitors. IC Role / Device Role / Timing Role: Low-voltage (1.8 V) nonvolatile scratchpad holding 30 seconds of raw 250 Hz data before BLE upload. Use Value: 0.1 µA hibernate current extends single-charge runtime to >14 days; reflow-survivable special sector holds device calibration. | Use Scenario: Recording pre-crash CAN bus state, IMU data, and camera metadata in automotive black boxes. IC Role / Device Role / Timing Role: Crash-triggered instant-write memory capturing last 500 ms of vehicle dynamics without flash erase overhead. Use Value: Bus-speed writes eliminate 10–100 ms flash erase delays - preserves critical milliseconds before impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QN-20LPXCT | Wider VDD range (1.8–3.6 V); identical pinout, timing, and feature set | Supports mixed-voltage systems (e.g., 3.3 V MCU with 1.8 V peripherals); less suitable for strict 1.8 V-only designs | Select when board already uses 3.3 V supply or requires voltage flexibility; CY15V104QN remains optimal for pure 1.8 V low-power systems |
| AT45DB041E-SSHN-B | 4-Mb DataFlash with 64-byte page writes; 100k endurance; 20-year retention; requires erase-before-write | Lacks instant write and high endurance; needs firmware overhead for erase management and wear leveling | Only consider for cost-sensitive legacy designs where write frequency < 100x/day and firmware can accommodate erase latency |
Compared with CY15B104QN-20LPXCT, the CY15V104QN offers tighter voltage tolerance ideal for 1.8 V rail stability, while AT45DB041E introduces erase latency and endurance limitations that compromise reliability in high-write-rate logging - making CY15V104QN the sole choice for mission-critical, zero-delay nonvolatile buffering.
Availability
CY15V104QN-20LPXCT is available at Aetrix Electronics and suitable for smart energy metering, industrial PLC data logging, medical wearable telemetry, and automotive ADAS event recorders requiring stable component supply across extended product lifecycles.
Supply support for CY15V104QN-20LPXCT 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, sensing, and nonvolatile memory solutions for industrial, automotive, and IoT applications.
The EXCELON™ LP F-RAM product line targets high-reliability, low-power embedded systems demanding instant-write nonvolatility - specifically engineered to replace serial flash and EEPROM in data-intensive, write-critical applications.
FAQ
Is CY15V104QN-20LPXCT pin-compatible with standard 8-pin SPI flash devices?
Yes - it uses industry-standard SOIC-8 pinout (CS, SCK, SI, SO, WP, VSS, VDD, DNU) matching common 4-Mb SPI flash footprints. No PCB redesign is needed for drop-in replacement, though firmware must disable flash-specific commands (e.g., erase opcodes) and leverage F-RAM's instant-write behavior instead of polling.
What is the function of the DNU pin, and how should it be handled on the PCB?
The DNU (Do Not Use) pin has no internal connection and must not be soldered to any net. Per Infineon's datasheet, it should either remain floating (unconnected) or be tied to VDD. Connecting it to ground or signal lines may cause undefined behavior or increased leakage current; leaving it unconnected is electrically safe and recommended for new designs.
How does the 256-byte special sector differ from main memory in terms of reflow survivability?
The special sector is fabricated with enhanced ferroelectric layer robustness and undergoes additional process qualification to withstand up to three standard lead-free reflow cycles (peak 260°C). Main array F-RAM retains data through reflow but is not characterized for repeated thermal stress - the special sector is explicitly designed to preserve calibration data or security keys pre-assembly without degradation.
Can the WP pin be left unconnected, or is external pull-up mandatory?
The WP pin must not be left floating. Infineon specifies it must be tied to VDD if unused, as an open WP input may float low and unintentionally enable hardware write protection - blocking all status register updates and potentially bricking configuration. A 10-kΩ pull-up to VDD is recommended for noise immunity in noisy industrial environments.
CY15V104QN-20LPXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-Auto, F-RAM™
- Package/Case:
- 8-UQFN
- Packaging:
- Tape & Reel (TR)
- 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
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 20 ns
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15V104QN-20LPXCT FAQ
1.How can I place an order for CY15V104QN-20LPXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QN-20LPXCT 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 CY15V104QN-20LPXCT reliable?
The price and inventory of CY15V104QN-20LPXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QN-20LPXCT is usually 5 days.
3.What payment methods are accepted for CY15V104QN-20LPXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QN-20LPXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QN-20LPXCT?
CY15V104QN-20LPXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QN-20LPXCT 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 CY15V104QN-20LPXCT?
For technical support, including CY15V104QN-20LPXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QN-20LPXCT requirements.
6.How does Aetrix verify that CY15V104QN-20LPXCT is sourced from the original manufacturer or authorized distributors?
All CY15V104QN-20LPXCT 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 CY15V104QN-20LPXCT meets industry standards.
7.What is the process for return or replacement of CY15V104QN-20LPXCT?
All CY15V104QN-20LPXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QN-20LPXCT, 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 CY15V104QN-20LPXCT part is unused and in its original packaging.
Return procedure for CY15V104QN-20LPXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V104QN-20LPXCT Tags
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