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Infineon Technologies CY15B104QN-20LPXIT
- Part No.:
- CY15B104QN-20LPXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15B104QN-20LPXIT.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,626
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Product details
Overview
CY15B104QN-20LPXIT from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating over SPI at up to 50 MHz with 1.8 V–3.6 V supply, 10¹⁵ write endurance, and 151-year data retention. It serves as a nonvolatile memory replacement for EEPROM/flash in real-time data logging systems requiring instant writes and industrial temperature support (–40°C to +85°C).
For engineers reviewing the CY15B104QN-20LPXIT datasheet, CY15B104QN-20LPXIT pinout, CY15B104QN-20LPXIT application, or CY15B104QN-20LPXIT equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware/software write protection (WP pin + WRDI), dedicated 256-byte special sector surviving three reflow cycles, and ultra-low deep power-down current (0.70 µA).
Technical Context
The CY15B104QN-20LPXIT implements a true SPI slave interface with zero-write-latency architecture: data commits immediately after byte transfer without polling, enabled by ferroelectric memory cell physics. Its status register controls WPEN, block protection (1/4, 1/2, full array), and write enable state.
It integrates on-die Device ID (manufacturer + product ID), unique ID, and 8-byte user-writable serial number registers. The 256-byte special sector is physically isolated and qualified for ≥3× JEDEC J-STD-020 reflow, enabling board-level traceability without compromising main array reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mb (512K × 8 bits); supports byte-addressable sequential reads/writes via SPI opcode + 3-byte address. |
| Max SPI Clock | 50 MHz; enables ≤20 ns per bit transfer - full 256-byte page write completes in <128 µs without wait states. |
| Data Retention | 151 years at +85°C; validated per JEDEC JESD22-A117, eliminating periodic refresh or wear-leveling firmware. |
| Write Endurance | 10¹⁵ cycles; supports continuous logging at 1 kHz write rate for >31,700 years before wear-out. |
| Supply Voltage | 1.8 V to 3.6 V; compatible with 1.8 V, 2.5 V, 3.3 V I/O domains without level shifters. |
| Operating Temp | –40°C to +85°C industrial grade; specified across full voltage range with guaranteed timing margins. |
| Deep Power-Down | 0.70 µA typical; reduces system standby power when memory is inactive but must retain data. |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, standard surface-mount footprint with 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Active-Low Chip Select | Enables SPI communication; device enters tristate and standby when HIGH - critical for multi-device bus arbitration. |
| SCK | Serial Clock Input | Synchronizes all I/O; rising edge latches SI, falling edge drives SO; supports interrupted clock and variable frequency (0–50 MHz). |
| SI | Serial Data Input | Receives opcodes, addresses, and write data; must be driven to valid logic level even during idle to meet IDD specs. |
| SO | Serial Data Output | Drives read data only during active read cycles; tristated otherwise - allows shared bus with other SPI slaves. |
| WP | Hardware Write Protect | Blocks status register writes when WPEN=1; must be tied to VDD if unused to prevent accidental lockout. |
| VSS | Ground Reference | Primary return path for all internal circuits; requires low-impedance connection to system ground plane. |
| VDD | Power Supply | Supplies core and I/O circuitry; bypass capacitor (≥100 nF) required within 10 mm of pin per datasheet layout guidelines. |
| DNU | Do Not Use | No internal connection; must remain floating or tied to VDD - not a test pad or reserved function. |
Key Features
| Feature | Design Value |
|---|---|
| Instant Non-Volatile Write | Zero latency write commit - no polling, no erase-before-write, no timeout handling in host firmware. |
| Dedicated Special Sector | 256-byte isolated F-RAM region qualified for ≥3× reflow; stores board serial numbers without risking main array integrity. |
| Multi-Layer Write Protection | Hardware (WP pin) + software (WRDI) + configurable block lock (1/4, 1/2, full array) - prevents accidental overwrites in field-deployed systems. |
| Unique Device Identification | Factory-programmed 64-bit unique ID + 8-byte writable serial number - enables secure device authentication and lifecycle tracking. |
| Ultra-Low Deep Power-Down | 0.70 µA typical current draw - extends battery life in energy-constrained IoT endpoints while preserving data. |
Applications
| Industrial Data Logger | Smart Metering |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (e.g., temperature, pressure) at 100 Hz with power-loss resilience. IC Role / Device Role / Timing Role: Primary nonvolatile storage for raw measurement buffers, replacing EEPROM due to write-speed bottleneck. Use Value: Eliminates 5–20 ms flash/EEPROM write delays, preventing data loss during brownouts and enabling sub-millisecond logging intervals. | Use Scenario: Storing tariff schedules, consumption history, and firmware update metadata in electricity/gas meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration and event log storage with cryptographic key backup capability. Use Value: 10¹⁵ endurance ensures >20 years of daily firmware updates and hourly billing records without wear degradation. |
| Medical Diagnostic Device | PLC I/O Module |
Use Scenario: Capturing ECG waveforms or diagnostic calibration parameters during intermittent power operation. IC Role / Device Role / Timing Role: High-reliability parameter storage with guaranteed retention across sterilization cycles and shelf life. Use Value: 151-year data retention at +85°C meets IEC 60601-1 long-term stability requirements without periodic data refresh. | Use Scenario: Storing I/O mapping tables, calibration coefficients, and fault history in modular automation controllers. IC Role / Device Role / Timing Role: Configuration memory accessed during cold start and updated dynamically during runtime diagnostics. Use Value: Hardware WP pin + status register lock prevents corruption during hot-swap events or EMI transients on factory floors. |
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-20LFXIT | Same die, 8-pin GQFN package (3 mm × 3 mm, 0.5 mm pitch); NRND status per Infineon documentation. | Smaller footprint but requires tighter assembly control; not recommended for new designs per datasheet Note 1. | Select only for legacy board redesign where SOIC footprint is unavailable and GQFN rework capability exists. |
| FM25V20A-G | Cypress (now Infineon) 2-Mb F-RAM; 40 MHz max SPI, 2.0–3.6 V, same 10¹⁵ endurance but lower density and no special sector. | Lacks 256-byte reflow-hardened sector and unique ID; suitable for cost-sensitive, lower-capacity use cases. | Choose when 2 Mb suffices and board-level serialization is handled externally or omitted. |
Compared with CY15B104QN-20LFXIT, the -20LPXIT offers mature SOIC manufacturability and full design support; versus FM25V20A-G, it delivers double density, enhanced security features (unique ID), and robustness-critical special sector - making it optimal for next-gen industrial edge nodes.
Availability
CY15B104QN-20LPXIT is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, and medical diagnostic devices requiring stable component supply, long-lifecycle assurance, and RoHS-compliant sourcing.
Supply support for CY15B104QN-20LPXIT 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, with global R&D and manufacturing infrastructure.
The EXCELON™ LP F-RAM product line targets mission-critical nonvolatile storage where write speed, endurance, and data retention outweigh cost-per-bit - specifically designed for industrial, medical, and energy infrastructure applications.
FAQ
Is CY15B104QN-20LPXIT pin-compatible with standard SPI EEPROMs like AT25DF041?
No. While both use 8-pin SOIC and SPI protocol, CY15B104QN-20LPXIT has a DNU pin (pin 2) and different pin assignments: SI/SO are separate (not shared), and WP is functional. AT25DF041 uses pin 7 as HOLD#, not DNU. Direct replacement requires PCB layout revision and firmware SPI command mapping updates.
Does the 256-byte special sector support individual byte writes?
Yes. The special sector is fully byte-addressable and supports single-byte writes identical to the main array - no page or sector erase required. Its reflow qualification applies to soldering thermal profiles, not write operation constraints.
What SPI modes does CY15B104QN-20LPXIT support, and how are they selected?
It supports SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), selected automatically by the host's clock polarity and phase configuration. No internal register setting is needed - the device detects mode on first SCK edge after CS assertion.
Can the unique ID be overwritten or disabled?
No. The 64-bit unique ID is factory-programmed into one-time-programmable (OTP) memory and is read-only. It cannot be altered, erased, or disabled. Only the 8-byte serial number register is user-writable via SPI command 0x1B.
CY15B104QN-20LPXIT 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:
- 1.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15B104QN-20LPXIT FAQ
1.How can I place an order for CY15B104QN-20LPXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B104QN-20LPXIT 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 CY15B104QN-20LPXIT reliable?
The price and inventory of CY15B104QN-20LPXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B104QN-20LPXIT is usually 5 days.
3.What payment methods are accepted for CY15B104QN-20LPXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B104QN-20LPXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B104QN-20LPXIT?
CY15B104QN-20LPXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B104QN-20LPXIT 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 CY15B104QN-20LPXIT?
For technical support, including CY15B104QN-20LPXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B104QN-20LPXIT requirements.
6.How does Aetrix verify that CY15B104QN-20LPXIT is sourced from the original manufacturer or authorized distributors?
All CY15B104QN-20LPXIT 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 CY15B104QN-20LPXIT meets industry standards.
7.What is the process for return or replacement of CY15B104QN-20LPXIT?
All CY15B104QN-20LPXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY15B104QN-20LPXIT, 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 CY15B104QN-20LPXIT part is unused and in its original packaging.
Return procedure for CY15B104QN-20LPXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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