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Infineon Technologies CY15V108QI-20BFXI
- Part No.:
- CY15V108QI-20BFXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UFLGA
- Datasheet:
-
CY15V108QI-20BFXI.pdf
- Description:
- IC FRAM 8MBIT SPI 8UFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,482
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Product details
Overview
CY15V108QI-20BFXI from Infineon is an 8-Mbit serial ferroelectric RAM (F-RAM) organized as 1024K × 8, operating on SPI interface at up to 20 MHz, with 1.71–1.89 V supply, industrial temperature range (–40°C to +85°C), and 10¹⁵ read/write endurance - deployed in real-time data logging systems requiring instant nonvolatile writes without write delays.
For engineers reviewing the CY15V108QI-20BFXI datasheet, CY15V108QI-20BFXI pinout, CY15V108QI-20BFXI application, or CY15V108QI-20BFXI equivalent, key selection considerations include SPI mode 0/3 compatibility, hardware/software write protection (WP pin + WRDI instruction), 256-byte dedicated special sector survivability across three reflow cycles, and ultra-low deep power-down current (0.90 µA).
Technical Context
The CY15V108QI-20BFXI implements a true SPI slave architecture with zero-latency write execution: data commits immediately upon byte transfer completion, eliminating polling and enabling deterministic bus timing. Its ferroelectric memory core delivers intrinsic nonvolatility without charge-pump circuitry or erase cycles.
It integrates dual-layer write protection - hardware-level via active-low WP pin (when WPEN=1) and software-level via Status Register configuration - plus device identification features including Manufacturer ID, Product ID, Unique Device ID, and user-writable 8-byte serial number registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 8 Mbit (1024K × 8), enabling compact storage of firmware metadata or sensor history without external address latching |
| SPI clock frequency | Up to 20 MHz, supporting 2.5 MB/s peak serial throughput for high-frequency telemetry capture |
| Write endurance | 10¹⁵ cycles, permitting continuous logging at 1 kHz for >31,700 years without wear-out failure |
| Data retention | 151 years at +85°C, ensuring archival integrity in unpowered industrial edge nodes |
| Supply voltage | 1.71 V to 1.89 V, matching LPDDR2/LPDDR3 I/O domains and enabling direct interfacing with 1.8 V microcontrollers |
| Deep power-down current | 0.90 µA (typ), reducing annual battery drain to <8 nAh in always-on monitoring applications |
| Special sector size | 256-byte dedicated F-RAM region, retaining calibration data through ≥3 standard Pb-free reflow soldering cycles |
Pinout & Package
Package: 8-pin ultra-thin fine-pitch land grid array (UFLGA), 2.0 mm × 2.5 mm × 0.5 mm, RoHS-compliant, suitable for space-constrained industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable: drives device into standby (3.5 µA) when HIGH; initiates SPI transaction on falling edge |
| SCK | Serial clock input | Synchronizes all I/O; rising edge samples SI, falling edge drives SO; supports 0–20 MHz with pause tolerance |
| SI | Serial input | Receives opcodes, addresses, and write data; must be held valid during operation to meet IDD specs |
| SO | Serial output | Drives read data on falling SCK edge; tristated when not reading or during write cycles |
| WP | Write protect input | Hardware lock for Status Register when WPEN=1; must tie to VDD if unused to prevent accidental protection |
| VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance connection to system ground plane |
| VDD | Power supply | 1.71–1.89 V input; powers internal logic, ferroelectric array, and I/O buffers; bypass capacitor required |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - not grounded or driven externally |
Key Features
| Feature | Design Value |
|---|---|
| Instant nonvolatile write | Zero write latency: data stored immediately after SPI byte transfer completes - no polling, no timeout handling required |
| Inrush current control | 1.6 mA (typ) at power-up, preventing brownout in shared 1.8 V rails with sensitive analog or RF subsystems |
| Dedicated special sector | 256-byte isolated F-RAM block retains factory calibration or security keys across full thermal reflow profiles (J-STD-020) |
| Multi-level write protection | Hardware (WP pin) + software (WRDI + block-protection bits) enables hierarchical access control for secure firmware updates |
| Device identification | Read-only Manufacturer ID + Product ID + Unique Device ID + writable 8-byte serial number support traceability and anti-counterfeiting |
Applications
| Industrial Data Logger | Smart Metering Endpoint |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (e.g., vibration, temperature) at 100 Hz in oil-field RTUs with intermittent cellular upload. IC Role / Device Role / Timing Role: Nonvolatile scratchpad storing last 72 hours of raw samples; acts as write-through buffer with guaranteed atomic commit per sample. Use Value: Eliminates flash wear leveling overhead and prevents data loss during unexpected power loss - every write succeeds instantly at bus speed. | Use Scenario: Utility-grade electricity meter recording kWh integrals, tamper events, and firmware update logs under strict regulatory audit requirements. IC Role / Device Role / Timing Role: Secure, long-retention event journal; stores time-stamped tamper flags and cryptographic signatures with hardware write-lock capability. Use Value: Meets ANSI C12.1 and IEC 62056-21 requirements for 151-year data retention and 10¹⁵-cycle endurance without periodic backup refresh. |
| Medical Diagnostic Sensor Hub | Automotive ADAS Calibration Module |
Use Scenario: Portable ECG monitor capturing waveform snippets during arrhythmia detection, requiring immediate nonvolatile save before Bluetooth transmission. IC Role / Device Role / Timing Role: Low-power, instant-write buffer holding up to 8 seconds of 12-bit waveform data (1024K × 8 capacity); powered from coin cell. Use Value: Achieves 0.90 µA deep power-down current and sub-millisecond write commit - extends battery life while guaranteeing diagnostic data persistence. | Use Scenario: Camera module calibration data storage in rear-view ADAS systems exposed to automotive thermal cycling (–40°C to +105°C ambient). IC Role / Device Role / Timing Role: Stores lens distortion coefficients and sensor offset maps in the 256-byte special sector, surviving three reflow cycles and extended high-temp operation. Use Value: Ensures factory calibration remains intact post-assembly and throughout vehicle lifetime - no field recalibration needed due to thermal-induced data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B108QI-20BFXI | Wider VDD range (1.8–3.6 V); lacks 1.8 V optimization - higher active current (1.8 mA vs. 1.3 mA) at 20 MHz | Preferred where mixed-voltage systems exist (e.g., 3.3 V MCU with 1.8 V peripherals); unsuitable for strict 1.8 V-only designs | Select only if board already uses 3.3 V rail and 1.8 V regulation is unavailable |
| FM25V05-G | Cypress (now Infineon) 512 Kbit F-RAM; same 1.8 V operation but half density and 16 MHz max SPI clock | Valid for lower-capacity use cases (e.g., parameter storage only); insufficient for full waveform buffering or firmware metadata | Choose only when memory footprint and cost constraints outweigh need for 8 Mbit and 20 MHz performance |
Compared with CY15B108QI-20BFXI and FM25V05-G, the CY15V108QI-20BFXI uniquely delivers 8 Mbit density, 20 MHz SPI, and 1.71–1.89 V operation in one UFLGA package - making it the sole option for space- and power-constrained 1.8 V systems requiring high-speed, high-endurance nonvolatile logging.
Availability
CY15V108QI-20BFXI is available at Aetrix Electronics and suitable for industrial data loggers, smart metering endpoints, medical diagnostic sensor hubs, and automotive ADAS calibration modules requiring stable component supply across extended product lifecycles.
Supply support for CY15V108QI-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 manufacturer specializing in power management, sensing, and connectivity solutions for industrial, automotive, and IoT markets.
The EXCELON™ LP F-RAM product line targets high-reliability, low-power nonvolatile memory applications where traditional EEPROM or flash fails due to write latency, endurance limits, or power sensitivity - especially in edge-sensing and energy-harvesting systems.
FAQ
Is CY15V108QI-20BFXI pin-compatible with CY15B108QI-20BFXI?
Yes - both share identical 8-pin UFLGA pinout, SPI command set, and register map. The only electrical difference is VDD range: CY15V108QI requires 1.71–1.89 V, while CY15B108QI operates from 1.8–3.6 V. Swapping requires verifying supply rail compliance and adjusting decoupling.
Does the 256-byte special sector support individual byte writes?
Yes - the dedicated special sector functions identically to main array F-RAM: byte-level addressing, instant nonvolatile writes, and full 10¹⁵ endurance. It is physically isolated and thermally hardened to survive three Pb-free reflow cycles without data loss.
Can WP pin be left unconnected?
No - the WP pin must be tied to VDD if not actively used. Leaving it floating risks unintended write protection activation due to noise coupling, which would block Status Register modifications and disable software-based block protection settings.
What SPI modes does CY15V108QI-20BFXI support?
It supports SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). In both modes, data is sampled on the rising edge of SCK and output on the falling edge. Mode selection is determined by host controller configuration - no device-side setting required.
CY15V108QI-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:
- 8Mbit
- Memory Organization:
- 1M 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)
CY15V108QI-20BFXI FAQ
1.How can I place an order for CY15V108QI-20BFXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V108QI-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 CY15V108QI-20BFXI reliable?
The price and inventory of CY15V108QI-20BFXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V108QI-20BFXI is usually 5 days.
3.What payment methods are accepted for CY15V108QI-20BFXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V108QI-20BFXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V108QI-20BFXI?
CY15V108QI-20BFXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V108QI-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 CY15V108QI-20BFXI?
For technical support, including CY15V108QI-20BFXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V108QI-20BFXI requirements.
6.How does Aetrix verify that CY15V108QI-20BFXI is sourced from the original manufacturer or authorized distributors?
All CY15V108QI-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 CY15V108QI-20BFXI meets industry standards.
7.What is the process for return or replacement of CY15V108QI-20BFXI?
All CY15V108QI-20BFXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V108QI-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 CY15V108QI-20BFXI part is unused and in its original packaging.
Return procedure for CY15V108QI-20BFXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V108QI-20BFXI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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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
Microchip Technology
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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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