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Infineon Technologies CY15V104QI-20BFXI
- Part No.:
- CY15V104QI-20BFXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UFLGA
- Datasheet:
-
CY15V104QI-20BFXI.pdf
- Description:
- IC FRAM 4MBIT SPI 8UFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,337
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Product details
Overview
CY15V104QI-20BFXI from Infineon is a 4-Mbit serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating at 1.71–1.89 V with 20 MHz SPI interface, 10¹⁵ write endurance, and 151-year data retention. It serves as a nonvolatile memory replacement for EEPROM/flash in high-write-cycle industrial data logging systems.
For engineers reviewing the CY15V104QI-20BFXI datasheet, CY15V104QI-20BFXI pinout, CY15V104QI-20BFXI application, or CY15V104QI-20BFXI equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware/software write protection, deep power-down current (0.1 µA), dedicated 256-byte reflow-survivable sector, and industrial temperature range (–40°C to +85°C).
Technical Context
The CY15V104QI-20BFXI implements an SPI slave architecture with zero-latency writes-no polling required-and supports full-duplex communication via SI/SO pins synchronized to SCK rising/falling edges. Its internal logic includes nonvolatile status register, device ID/serial number registers, and dedicated 256-byte special sector with guaranteed survival through three reflow cycles.
Write protection is enforced via dual-layer control: hardware-level WP pin (active-low, requires WPEN bit set) and software-level WRDI instruction plus block protection (1/4, 1/2, or full array). Inrush current is actively controlled during power-up, limiting peak surge to 1.5 mA (typ), critical for low-power rail stability in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (512K × 8), enabling compact storage of firmware metadata or sensor logs without external buffering |
| SPI clock frequency | Up to 20 MHz, supporting 2.5 MB/s sustained write throughput-100× faster than typical EEPROM |
| Data retention | 151 years at +85°C, eliminating periodic refresh or backup power requirements in sealed industrial enclosures |
| Write endurance | 10¹⁵ read/write cycles, permitting continuous logging at 1 kHz for >31,700 years without wear-out |
| Supply voltage | 1.71 V to 1.89 V, compatible with modern ultra-low-voltage SoC I/O domains and LPDDR3/LPDDR4 supply rails |
| Deep power-down current | 0.1 µA (typ), enabling multi-year operation on coin-cell batteries in remote monitoring nodes |
| Operating temperature | –40°C to +85°C, qualified for deployment in motor drives, PLC backplanes, and outdoor metering hardware |
Pinout & Package
Package: 8-pin ultra-thin fine-pitch land grid array (UFLGA), 2.0 mm × 2.5 mm × 0.5 mm, RoHS-compliant, NRND status noted for new designs but fully supported for industrial continuity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Active-low chip select | Enables SPI transaction; device enters standby (2.3 µA) when HIGH, tristates SO, ignores SCK/SI |
| SCK | Serial clock input | Drives all timing; inputs latched on rising edge, SO driven on falling edge; supports 0–20 MHz with interrupt tolerance |
| SI | Serial data input | Receives opcodes, addresses, and write data; must be held valid to meet IDD specs; may share trace with SO in single-wire mode |
| SO | Serial data output | Drives read data only; tristated during writes/inactive periods; synchronous to SCK falling edge |
| WP | Hardware write protect | Blocks status register writes when WPEN=1; must tie to VDD if unused to prevent spurious protection activation |
| VSS | Ground reference | Primary 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; decoupling capacitor mandatory per datasheet layout guidelines |
| DNU | No-connect terminal | Not internally bonded; must float or tie to VDD-never driven or grounded to avoid leakage or latch-up risk |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Writes complete at bus speed-no delay between byte transfer and data persistence, eliminating timeout handling in host firmware |
| Dedicated 256-byte special sector | Retains calibration data or security keys across ≥3 standard Pb-free reflow cycles (260°C peak), enabling pre-programmed module integration |
| Inrush current control | Limits peak startup surge to 1.5 mA (typ), preventing brownout in shared 1.8 V rails powering multiple low-voltage peripherals |
| Unique device ID + serial number | Enables board-level traceability and secure boot binding via factory-programmed 64-bit ID and user-writable 8-byte serial register |
| Multi-layer write protection | Combines hardware (WP pin), software disable (WRDI), and configurable block lock-prevents accidental overwrites in field-upgrade scenarios |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
Use Scenario: Continuous timestamped recording of voltage/current harmonics at 10 kHz sampling rate in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Nonvolatile buffer storing raw samples between host reads; operates as SPI slave with deterministic 20 MHz write latency. Use Value: 10¹⁵ endurance ensures >30 years of daily 10-hour logging without degradation; 0.1 µA hibernate current extends battery life during grid outages. | Use Scenario: Storing tamper-evident event logs (power loss, cover removal, magnetic interference) in utility-grade electricity meters. IC Role / Device Role / Timing Role: Secure, fast-write memory for time-critical fault records; leverages WP pin for hardware-enforced log immutability. Use Value: 151-year retention guarantees audit trail validity over meter lifetime; dedicated special sector stores cryptographic keys surviving reflow during PCB rework. |
| PLC I/O Module | Medical Diagnostic Sensor Hub |
Use Scenario: Capturing transient analog input bursts (e.g., motor phase current spikes) in programmable logic controller expansion modules. IC Role / Device Role / Timing Role: High-speed shadow memory buffering ADC streams before DMA transfer to main processor; zero-write-delay eliminates sample loss. Use Value: 20 MHz SPI enables real-time capture at 2.5 MB/s; industrial temp rating (–40°C to +85°C) ensures reliability inside metal control cabinets. | Use Scenario: Logging calibrated transducer offsets and gain coefficients in portable ultrasound probe assemblies undergoing sterilization cycles. IC Role / Device Role / Timing Role: Calibration data vault retaining factory-trimmed parameters across repeated autoclave exposure (134°C, 3 bar steam). Use Value: Special sector's triple-reflow survivability preserves accuracy without post-sterilization recalibration; 1.71–1.89 V operation matches low-noise analog front-end supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QI-20BFXI | Wider VDD range (1.8–3.6 V); identical pinout, timing, and feature set except voltage tolerance | Suitable for mixed-voltage systems where 3.3 V peripherals coexist; not compliant with strict 1.8 V-only I/O domains | Select when board uses 3.3 V SPI master or shares VDD rail with higher-voltage components |
| MB85RS4MT-FPNSE | Fujitsu 4-Mbit FRAM; same 20 MHz SPI, but lacks dedicated special sector and reflow-survivable memory | Acceptable for general logging where calibration persistence across reflow is not required; no unique ID register | Choose for cost-sensitive designs without need for traceable serial numbers or post-manufacture calibration storage |
Compared with CY15B104QI-20BFXI, the CY15V104QI-20BFXI offers tighter voltage control for noise-sensitive 1.8 V systems, while MB85RS4MT-FPNSE trades specialized features (reflow-survivable sector, unique ID) for broader vendor availability-making CY15V104QI optimal for sealed, long-lifecycle industrial deployments requiring guaranteed data integrity.
Availability
CY15V104QI-20BFXI is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, PLC I/O modules, and medical sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for CY15V104QI-20BFXI 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, automotive ICs, and high-reliability memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
The EXCELON™ LP F-RAM product line targets industrial and automotive applications demanding extreme write endurance, zero-write-latency, and long-term data retention-specifically replacing legacy EEPROM and serial flash in mission-critical logging and configuration storage.
FAQ
Is CY15V104QI-20BFXI pin-compatible with CY15B104QI-20BFXI?
Yes-both share identical 8-pin UFLGA package, pin mapping, SPI command set, and timing specifications. The sole electrical difference is VDD range: CY15V104QI requires 1.71–1.89 V, while CY15B104QI supports 1.8–3.6 V. Swapping requires verifying host I/O voltage compliance to avoid overvoltage stress on the VDD pin.
Does the 256-byte special sector support individual byte writes?
Yes-the special sector is fully byte-addressable and supports standard SPI write commands (WRITE, WRITE ENABLE). Its distinguishing feature is guaranteed survival through three Pb-free reflow cycles (260°C peak), not altered write granularity. All 256 bytes retain this qualification, making it ideal for factory-programmed calibration or security keys.
What SPI modes does CY15V104QI-20BFXI 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 controller's clock polarity and phase settings. No internal register configuration is needed-the device detects mode via SCK idle state and sampling edge behavior during the first opcode transfer.
Can the unique device ID be modified after manufacturing?
No-the 64-bit unique device ID is factory-laser-programmed into nonvolatile memory and is read-only. Only the 8-byte serial number register is user-writable via the WRITE SERIAL NUMBER command. This separation ensures traceability remains immutable while allowing field-programmable identifiers like MAC address or board serial tags.
CY15V104QI-20BFXI 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)
CY15V104QI-20BFXI FAQ
1.How can I place an order for CY15V104QI-20BFXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QI-20BFXI 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 CY15V104QI-20BFXI reliable?
The price and inventory of CY15V104QI-20BFXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QI-20BFXI is usually 5 days.
3.What payment methods are accepted for CY15V104QI-20BFXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QI-20BFXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QI-20BFXI?
CY15V104QI-20BFXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QI-20BFXI 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 CY15V104QI-20BFXI?
For technical support, including CY15V104QI-20BFXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QI-20BFXI requirements.
6.How does Aetrix verify that CY15V104QI-20BFXI is sourced from the original manufacturer or authorized distributors?
All CY15V104QI-20BFXI 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 CY15V104QI-20BFXI meets industry standards.
7.What is the process for return or replacement of CY15V104QI-20BFXI?
All CY15V104QI-20BFXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QI-20BFXI, 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 CY15V104QI-20BFXI part is unused and in its original packaging.
Return procedure for CY15V104QI-20BFXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V104QI-20BFXI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
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AT21CS01-STUM10-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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