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Infineon Technologies CY15B104QN-50BFXI
- Part No.:
- CY15B104QN-50BFXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UFLGA
- Datasheet:
-
CY15B104QN-50BFXI.pdf
- Description:
- IC FRAM 4MBIT SPI 8UFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,100
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Product details
Overview
CY15B104QN-50BFXI 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 high-write-frequency industrial data logging and real-time control systems.
For engineers reviewing the CY15B104QN-50BFXI datasheet, CY15B104QN-50BFXI pinout, CY15B104QN-50BFXI application, or CY15B104QN-50BFXI equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware/software write protection, dedicated 256-byte reflow-survivable sector, and ultra-low deep power-down current (0.70 µA).
Technical Context
The CY15B104QN-50BFXI implements an SPI slave interface with zero-latency writes-no polling required-and supports both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). Its internal architecture includes a 512K × 8 main F-RAM array plus a dedicated 256-byte special sector that withstands three standard reflow cycles.
Write protection is implemented via dual-layer control: hardware-level WP pin assertion (active-low) and software-configurable status register bits (WPEN, BP0–BP2), enabling selective block protection of 1/4, 1/2, or full memory. Device identification includes read-only Manufacturer ID, Product ID, Unique ID, and user-writable 8-byte serial number registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8), directly addressable byte-wise via 19-bit SPI address |
| SPI clock frequency | Up to 50 MHz - enables sub-μs per-byte write latency without wait states |
| Endurance | 10¹⁵ read/write cycles - supports continuous logging for >27 years at 1 kHz write rate |
| Data retention | 151 years at +85°C - eliminates periodic refresh or backup power requirements |
| Supply voltage | 1.8 V to 3.6 V - interoperable with 1.8 V, 2.5 V, and 3.3 V logic domains |
| Deep power-down current | 0.70 µA (typ) - extends battery life in always-on sensor nodes |
| Operating temperature | –40°C to +85°C - qualified for industrial control and automotive under-hood environments |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, industrial-grade plastic body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (tri-state I/O, 2.3 µA) when HIGH |
| SCK | Serial clock input | Synchronizes all SPI transfers; rising edge latches SI, falling edge drives SO |
| SI | Serial input | Accepts opcodes, addresses, and write data; must be driven to valid logic level for IDD compliance |
| SO | Serial output | Drives read data only during active read cycles; tri-stated otherwise |
| WP | Write protect input | Hardware lock for status register writes when WPEN = 1; tie to VDD if unused |
| VSS | Ground | Reference return path for all internal circuitry and I/O |
| VDD | Power supply | Single 1.8–3.6 V rail powers core, I/O, and F-RAM array |
| DNU | Do-not-use terminal | No internal connection; leave floating or tie to VDD per design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Writes complete at bus speed - no delay, no polling, no wear leveling overhead |
| Dedicated reflow-survivable sector | 256-byte F-RAM area retains data through three 260°C reflow cycles - ideal for board-level serialization |
| Multi-layer write protection | Combines hardware (WP pin) and software (status register + block protection bits) for robust field update security |
| Unique device identification | Factory-programmed read-only Unique ID + user-writable 8-byte serial number for traceability and anti-cloning |
| Ultra-low deep power-down | 0.70 µA typical current draw - enables multi-year operation on coin-cell batteries |
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: Nonvolatile scratchpad memory storing last-known state and buffered logs prior to safe shutdown. Use Value: 10¹⁵ endurance ensures >30 years of daily 1M-write cycles; zero-write-latency prevents data loss during brownouts. | Use Scenario: Tamper-proof energy consumption records updated every second across decades of service life. IC Role / Device Role / Timing Role: Secure, long-retention storage for billing-critical kWh counters and firmware revision logs. Use Value: 151-year data retention at +85°C eliminates need for battery-backed SRAM or complex flash wear management. |
| PLC I/O Module | Automotive Telematics ECU |
Use Scenario: Storing configuration parameters, calibration offsets, and fault history in programmable logic controllers. IC Role / Device Role / Timing Role: Configuration memory accessed at boot and updated only on commissioning or recalibration events. Use Value: Hardware WP pin + software block protection prevents accidental overwrites during field firmware updates. | Use Scenario: Recording vehicle event data (crash, hard braking, GPS coordinates) with guaranteed persistence after power interruption. IC Role / Device Role / Timing Role: Crash-data buffer that captures final 5 seconds pre-impact using deterministic write timing. Use Value: Sub-microsecond write commit enables reliable capture even during sudden 12 V dropout - no capacitor hold-up required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QSN-50BFXI | Same die, identical electrical specs, but in 8-pin UFLGA package (0.5 mm pitch, 4.0 × 3.0 mm) | Better suited for space-constrained PCBs; requires fine-pitch assembly capability | Select for miniaturized designs where SOIC footprint is prohibitive |
| FM25V04-G | Cypress (now Infineon) 4-Mb F-RAM, 50 MHz SPI, but rated only to +70°C commercial temp range | Lacks industrial –40°C to +85°C qualification; no dedicated reflow-survivable sector | Acceptable for cost-sensitive commercial applications without extended temperature or reflow traceability needs |
Compared with CY15B104QSN-50BFXI and FM25V04-G, the CY15B104QN-50BFXI uniquely combines industrial temperature rating, SOIC manufacturability, and the 256-byte reflow-hardened sector - making it optimal for certified industrial and automotive-qualified assemblies.
Availability
CY15B104QN-50BFXI is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for CY15B104QN-50BFXI 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 nonvolatile memory solutions with global manufacturing and quality certification.
The EXCELON™ LP F-RAM product line targets high-reliability, high-endurance nonvolatile memory applications where flash and EEPROM fail due to write latency, limited endurance, or data retention constraints.
FAQ
Is CY15B104QN-50BFXI pin-compatible with standard SPI EEPROMs like AT25DF041?
No. While both use 8-pin SOIC and SPI interface, CY15B104QN-50BFXI has a DNU pin (pin 2) not present in AT25DF041, and its WP pin behavior differs: it protects status register writes only when WPEN=1, whereas AT25DF041 uses WP for full-array protection. Layout adaptation is required.
Does the 256-byte special sector require separate addressing or commands?
Yes. The special sector resides at fixed addresses 0x7F000–0x7F0FF and is accessed using dedicated opcodes: 0x77 (read special sector) and 0x78 (write special sector). Standard read/write opcodes (0x03/0x02) cannot access this region - preventing accidental overwrite during main array operations.
Can CY15B104QN-50BFXI operate reliably at 1.8 V while running at 50 MHz?
Yes. Per Infineon's DC characteristics table (Section 7), the device guarantees full 50 MHz SPI operation down to VDD = 1.8 V, with tSU,SI ≥ 5 ns and tHZ,SO ≤ 10 ns met across –40°C to +85°C. No derating is required at minimum supply.
What happens to the serial number register during power cycling or reset?
The 8-byte serial number register is stored in standard F-RAM cells and retains its value across unlimited power cycles, resets, and temperature extremes. Unlike volatile registers, it requires no initialization after power-up and survives deep power-down mode without data loss.
CY15B104QN-50BFXI 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:
- 50 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UFLGA (3.28x3.23)
CY15B104QN-50BFXI FAQ
1.How can I place an order for CY15B104QN-50BFXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B104QN-50BFXI 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-50BFXI reliable?
The price and inventory of CY15B104QN-50BFXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B104QN-50BFXI is usually 5 days.
3.What payment methods are accepted for CY15B104QN-50BFXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B104QN-50BFXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B104QN-50BFXI?
CY15B104QN-50BFXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B104QN-50BFXI 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-50BFXI?
For technical support, including CY15B104QN-50BFXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B104QN-50BFXI requirements.
6.How does Aetrix verify that CY15B104QN-50BFXI is sourced from the original manufacturer or authorized distributors?
All CY15B104QN-50BFXI 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-50BFXI meets industry standards.
7.What is the process for return or replacement of CY15B104QN-50BFXI?
All CY15B104QN-50BFXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15B104QN-50BFXI, 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-50BFXI part is unused and in its original packaging.
Return procedure for CY15B104QN-50BFXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15B104QN-50BFXI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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