Infineon Technologies CY15V108QN-50BKXI
- Part No.:
- CY15V108QN-50BKXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
CY15V108QN-50BKXI.pdf
- Description:
- IC FRAM 8MBIT SPI 50MHZ 24FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:3,952
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Product details
Overview
CY15V108QN-50BKXI from Infineon is an 8-Mbit serial ferroelectric RAM (F-RAM) organized as 1024K × 8, operating at up to 50 MHz SPI clock, with 1.71–1.89 V supply and industrial temperature range (−40°C to +85°C). It delivers instant non-volatile writes, 10¹⁵ read/write endurance, and 151-year data retention-enabling reliable logging in battery-constrained IoT sensor nodes.
For engineers reviewing the CY15V108QN-50BKXI datasheet, CY15V108QN-50BKXI pinout, CY15V108QN-50BKXI application, or CY15V108QN-50BKXI equivalent, this F-RAM serves as a hardware-compatible replacement for serial EEPROM/flash in high-write-cycle systems requiring zero write latency, ultra-low active/standby current, and reflow-survivable special-sector storage.
Technical Context
The CY15V108QN-50BKXI implements a true SPI slave interface compliant with Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), supporting continuous read/write without polling or erase cycles. Its internal architecture integrates a 1024K × 8 main F-RAM array plus a dedicated 256-byte special sector that retains data across three standard reflow soldering cycles.
Write protection is enforced via dual-layer control: hardware-level WP pin assertion (active-low) combined with software-configurable Status Register bits (WPEN, BP0–BP2) enabling 1/4-, 1/2-, or full-array block locking. Device identification includes fixed Manufacturer ID (0x01), Product ID (0x5B), unique 64-bit Device ID, and user-writable 8-byte serial number registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1024K × 8), directly addressable byte-wise over SPI without page/sector management |
| Max SPI Clock | 50 MHz - enables 5 MB/s sustained write throughput with no wait states |
| Data Retention | 151 years at +85°C - eliminates periodic refresh or backup power requirements |
| Endurance | 10¹⁵ read/write cycles - supports continuous logging at 1 kHz for >31,700 years |
| Supply Voltage | 1.71 V to 1.89 V - optimized for single-cell LiFePO₄ or regulated low-voltage rails |
| Deep Power Down Current | 0.9 µA typical - extends battery life in always-on edge sensors |
| Special Sector Size | 256 bytes - stores calibration data, MAC addresses, or firmware metadata surviving reflow |
Pinout & Package
Package: 24-ball fine-pitch ball grid array (FBGA), 6 mm × 8 mm, 0.8 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (tri-state I/O, 7.5 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 when WPEN = 1; must tie to VDD if unused |
| VDD | Power supply | 1.71–1.89 V core supply; decoupling required per datasheet layout guidelines |
| VSS | Ground | System ground reference; separate analog/digital grounding not required |
| DNU | Do Not Use | Ball E2 - must float or connect to VDD; no internal connection |
| NC | No Connect | 12 balls (A1–A5, B1, B5, C1, C5, D1, D5, E1, E5) - no die bonding |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero write latency - data committed immediately after SPI byte transfer; no polling or timeout handling needed |
| Dedicated reflow-survivable sector | 256-byte special F-RAM retains calibration or identity data through three 260°C reflow cycles |
| Multi-layer write protection | Hardware (WP pin) + software (Status Register BP bits) enables granular, field-updatable memory locking |
| Unique device identification | Factory-programmed 64-bit Device ID + user-writable 8-byte serial number for traceability and anti-cloning |
| Ultra-low deep power-down | 0.9 µA typical current enables >10-year battery operation in maintenance-free remote sensors |
Applications
| Industrial Data Logger | Smart Metering |
|---|---|
Use Scenario: Continuous voltage/current sampling at 10 kHz with timestamped event capture in utility-grade meters. IC Role / Device Role / Timing Role: Non-volatile scratchpad storing last 72 hours of waveform snapshots and tamper logs. Use Value: Eliminates flash wear leveling overhead and guarantees sub-millisecond write commit for every sample - preventing data loss during brownouts. | Use Scenario: Firmware update staging and secure parameter storage in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Dual-role storage: boot-time config (special sector) and runtime billing counters (main array). Use Value: Withstands 10¹⁵ writes, enabling daily firmware delta updates and hourly tariff adjustments without endurance exhaustion. |
| Medical Wearable Sensor Hub | Automotive Telematics Control Unit |
Use Scenario: ECG waveform buffering and patient ID persistence in disposable patch monitors powered by coin cells. IC Role / Device Role / Timing Role: Primary non-volatile buffer interfacing directly to ARM Cortex-M0+ SPI peripheral. Use Value: 0.9 µA deep power-down current extends 3V CR2032 battery life beyond 18 months while retaining full 8 Mbit capacity. | Use Scenario: Storing CAN bus diagnostic trouble codes (DTCs) and vehicle configuration profiles in ADAS gateway modules. IC Role / Device Role / Timing Role: Fail-safe NVRAM co-located with S32K144 MCU, accessed during reset recovery sequences. Use Value: 151-year data retention ensures DTC history remains intact across 15-year vehicle lifecycles without refresh circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial non-volatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B108QN-50BKXI | Wider VDD range (1.8–3.6 V); same density, timing, and F-RAM architecture | Required where system rail exceeds 1.89 V or shares supply with 3.3 V peripherals | Select when board-level VDD tolerance exceeds CY15V108QN's 1.89 V max - no firmware or layout changes needed |
| AT45DB081E-SSHN-B | 8 Mbit DataFlash; requires 10–100 ms page erase/write; 100k endurance; 20-year retention | Acceptable only in low-write-frequency applications with software timeout handling | Use only if legacy SPI flash footprint must be retained and write frequency < 100×/hour |
Compared with CY15B108QN-50BKXI, the CY15V108QN offers tighter voltage control for ultra-low-power designs, while AT45DB081E demands significant firmware adaptation for erase management and endurance monitoring - making it unsuitable for high-write-rate deployments.
Availability
CY15V108QN-50BKXI is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, medical wearable sensor hubs, and automotive telematics control units requiring stable component supply across extended product lifecycles.
Supply support for CY15V108QN-50BKXI 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 security solutions for industrial, automotive, and IoT markets.
The EXCELON™ LP F-RAM product line targets high-reliability, high-endurance non-volatile storage in space-constrained, low-power embedded systems where flash/EEPROM limitations impede performance or longevity.
FAQ
Is CY15V108QN-50BKXI pin-compatible with CY15B108QN-50BKXI?
Yes - both share identical 24-ball FBGA package, pinout, and SPI command set. The only difference is supply voltage range: CY15V108QN supports 1.71–1.89 V, while CY15B108QN supports 1.8–3.6 V. No PCB or firmware changes are required when substituting within the overlapping 1.8–1.89 V range.
Does the special 256-byte sector require separate addressing or commands?
No - the special sector uses standard SPI read/write opcodes (0x03/0x02) with addresses 0xFFFC00–0xFFFCFF. It behaves identically to main array memory but is fabricated with enhanced thermal stability to survive reflow. No driver modifications are needed to access it.
Can WP pin be left unconnected in a design?
No - the WP pin must be tied to VDD if not actively used for hardware write protection. Leaving it floating violates the datasheet's absolute maximum ratings and may cause unpredictable Status Register locking behavior due to noise coupling.
What is the minimum SCK frequency supported for reliable operation?
The device supports DC-coupled SCK - meaning 0 Hz (static CS assertion) is valid. However, for guaranteed timing compliance, Infineon specifies tCH and tCL ≥ 10 ns (i.e., ≤ 100 MHz max), with no lower bound. Systems may pause SCK indefinitely between bytes without affecting functionality or data integrity.
CY15V108QN-50BKXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-LP,F-RAM™
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 50 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 9 ns
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-FBGA (6x8)
CY15V108QN-50BKXI FAQ
1.How can I place an order for CY15V108QN-50BKXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V108QN-50BKXI 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 CY15V108QN-50BKXI reliable?
The price and inventory of CY15V108QN-50BKXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V108QN-50BKXI is usually 5 days.
3.What payment methods are accepted for CY15V108QN-50BKXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V108QN-50BKXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V108QN-50BKXI?
CY15V108QN-50BKXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V108QN-50BKXI 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 CY15V108QN-50BKXI?
For technical support, including CY15V108QN-50BKXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V108QN-50BKXI requirements.
6.How does Aetrix verify that CY15V108QN-50BKXI is sourced from the original manufacturer or authorized distributors?
All CY15V108QN-50BKXI 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 CY15V108QN-50BKXI meets industry standards.
7.What is the process for return or replacement of CY15V108QN-50BKXI?
All CY15V108QN-50BKXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V108QN-50BKXI, 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 CY15V108QN-50BKXI part is unused and in its original packaging.
Return procedure for CY15V108QN-50BKXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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