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Infineon Technologies CY15V104QI-20LPXI
- Part No.:
- CY15V104QI-20LPXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V104QI-20LPXI.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,804
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Product details
Overview
CY15V104QI-20LPXI from Infineon is a 4-Mbit serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating at 1.71–1.89 V with SPI interface up to 20 MHz, 10¹⁵ write endurance, and 151-year data retention - deployed in industrial data loggers for real-time sensor parameter storage without wear-out or write latency.
For engineers reviewing the CY15V104QI-20LPXI datasheet, CY15V104QI-20LPXI pinout, CY15V104QI-20LPXI application, or CY15V104QI-20LPXI equivalent, this device delivers instant non-volatile writes, ultra-low deep power-down current (0.70 µA), hardware/software write protection, and dedicated 256-byte reflow-survivable sector - critical for high-cycle telemetry and edge-control firmware state capture.
Technical Context
The CY15V104QI-20LPXI implements an SPI slave interface compliant with modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), supporting opcode-driven memory access with zero write latency and no polling requirement. Its internal F-RAM array enables byte-level writes at bus speed, eliminating erase-before-write overhead inherent in flash/EEPROM.
It integrates a nonvolatile status register, manufacturer/product ID registers, 8-byte user-writable serial number, and a dedicated 256-byte special sector qualified for three standard reflow cycles. Inrush current control ensures stable power-up behavior in constrained industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (512K × 8), enabling compact storage of 512 KB of configuration or event logs without external address latching |
| SPI clock frequency | Up to 20 MHz - supports 2.5 MB/s sustained write throughput with no wait states |
| Data retention | 151 years at +85°C - eliminates periodic refresh or backup battery dependency in sealed industrial enclosures |
| Write endurance | 10¹⁵ read/write cycles - withstands continuous 100 Hz logging for >317 years without degradation |
| Supply voltage | 1.71 V to 1.89 V - compatible with 1.8 V core logic domains and low-power microcontroller I/O |
| Deep power-down current | 0.70 µA (typ) - extends battery life in always-on remote monitoring nodes beyond 10 years |
| 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 × 0.55 mm, RoHS-compliant, NRND status noted for new designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip select input | Active-low enable; places device in standby (2.3 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 interruptible clock |
| SI | Serial input | Accepts opcodes, addresses, and write data; must be driven to valid logic level to meet IDD specs |
| SO | Serial output | Drives read data only during active read cycles; tristated otherwise; transitions on SCK falling edge |
| WP | Write protect input | Hardware lock for status register when WPEN=1; must tie to VDD if unused to prevent accidental protection |
| VSS | Ground | System reference return path; requires low-impedance connection to minimize noise coupling into F-RAM array |
| VDD | Power supply | 1.71–1.89 V input; includes internal inrush current limiting to avoid rail collapse during cold start |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - not a test pad or reserved function |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero write latency: data committed immediately after SPI byte transfer - no timeout or polling required |
| Dedicated reflow-survivable sector | 256-byte special F-RAM sector retains content through three JEDEC J-STD-020C reflow cycles - ideal for factory-programmed calibration data |
| Hierarchical write protection | Combines hardware (WP pin), software disable (WRDI), and block protection (1/4, 1/2, full array) - prevents accidental overwrites in field-deployed units |
| Unique device identification | Factory-programmed 64-bit unique ID + 8-byte writable serial number - enables secure device binding and traceability in IIoT gateways |
| Ultra-low deep power-down mode | 0.70 µA typical current draw - allows indefinite retention during system sleep without compromising data integrity |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
Use Scenario: Continuous timestamped recording of voltage, current, and temperature at 100 Hz sampling rate in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory storing last-known state and cyclic event buffers between MCU wake cycles. Use Value: Eliminates flash wear leveling overhead and guarantees sub-millisecond write commit - preventing gap in 15-minute demand data archives. |
Use Scenario: Storing tariff schedules, tamper-event timestamps, and cryptographic keys in Class 0.5S revenue-grade meters. IC Role / Device Role / Timing Role: Secure, long-retention configuration store interfaced directly to metrology SoC's SPI port. Use Value: Withstands 10¹⁵ writes and 151-year retention - meets IEC 62056-21 and DLMS/COSEM lifetime requirements without backup capacitors. |
| PLC I/O Module | Medical Diagnostic Sensor Hub |
Use Scenario: Capturing transient fault codes, analog input calibration offsets, and firmware update staging in modular automation I/O bases. IC Role / Device Role / Timing Role: High-reliability parameter store accessible via same SPI bus as ADC/DAC peripherals. Use Value: Hardware WP pin enables lock-down of calibration data post-manufacturing - meeting IEC 61131-2 functional safety constraints. |
Use Scenario: Logging ECG waveform metadata, sensor self-test results, and FDA audit trails in portable diagnostic devices. IC Role / Device Role / Timing Role: Tamper-evident, battery-free nonvolatile memory for HIPAA-compliant patient session records. Use Value: Dedicated 256-byte reflow-survivable sector stores factory calibration coefficients - surviving PCB rework without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QI-20LPXI | Wider VDD range (1.8–3.6 V); identical timing, endurance, and architecture | Supports mixed-voltage systems (e.g., 3.3 V host with 1.8 V peripherals); not suitable for strict 1.8 V-only rails | Select when board uses ≥3.0 V logic or requires backward compatibility with legacy 3.3 V SPI masters |
| MB85RS4MT-FPN-GE1 | Fujitsu 4-Mbit FRAM; 1.8 V operation; 15 MHz max SPI; 10¹⁴ endurance; no dedicated reflow sector | Lacks 256-byte reflow-hardened sector and inrush current control; lower endurance margin | Consider only if cost sensitivity outweighs need for 151-year retention or triple-reflow qualification |
Compared with CY15B104QI-20LPXI, the CY15V104QI-20LPXI offers tighter voltage tolerance for 1.8 V systems and superior inrush control, while MB85RS4MT-FPN-GE1 trades endurance and reflow robustness for lower unit cost - making CY15V104QI-20LPXI optimal for mission-critical industrial firmware state capture.
Availability
CY15V104QI-20LPXI 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-20LPXI 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 memory solutions for industrial, automotive, and IoT markets.
CY15V104QI belongs to the EXCELON™ LP F-RAM product line, engineered specifically for high-endurance, low-latency nonvolatile storage in resource-constrained industrial edge nodes where flash wear-out and EEPROM write delays are unacceptable.
FAQ
Is CY15V104QI-20LPXI pin-compatible with standard SPI EEPROMs or flash devices?
Yes - it uses an industry-standard 8-pin SPI pinout (CS, SCK, SI, SO, WP, VSS, VDD, DNU) matching common 4-Mbit serial EEPROMs and flash. No PCB redesign is needed for drop-in replacement, though firmware must disable polling loops since writes complete instantly.
Does the 256-byte special sector require separate addressing or commands?
No - the special sector resides at fixed addresses 0x7F000–0x7F0FF and is accessed using standard READ/WRITE opcodes (0x03/0x02). It behaves identically to main array but is fabricated with enhanced metallization to survive three reflow cycles.
How does inrush current control function during power-up?
The device limits peak inrush to ≤1.5 mA (typ) by internally gating VDD ramp-up to the F-RAM array and logic blocks. This prevents brownout in systems with weak LDOs or shared power rails, eliminating need for external soft-start circuitry.
Can the WP pin be left unconnected in designs without hardware write protection?
No - per datasheet Section 2, WP must be tied to VDD if unused. Leaving it floating risks unintended activation of status register protection, which could permanently lock write access until VDD cycle reset - a known failure mode in field units.
CY15V104QI-20LPXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-LP,F-RAM™
- Package/Case:
- 8-UQFN
- Packaging:
- Tray
- 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:
- -
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15V104QI-20LPXI FAQ
1.How can I place an order for CY15V104QI-20LPXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QI-20LPXI 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-20LPXI reliable?
The price and inventory of CY15V104QI-20LPXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QI-20LPXI is usually 5 days.
3.What payment methods are accepted for CY15V104QI-20LPXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QI-20LPXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QI-20LPXI?
CY15V104QI-20LPXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QI-20LPXI 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-20LPXI?
For technical support, including CY15V104QI-20LPXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QI-20LPXI requirements.
6.How does Aetrix verify that CY15V104QI-20LPXI is sourced from the original manufacturer or authorized distributors?
All CY15V104QI-20LPXI 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-20LPXI meets industry standards.
7.What is the process for return or replacement of CY15V104QI-20LPXI?
All CY15V104QI-20LPXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QI-20LPXI, 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-20LPXI part is unused and in its original packaging.
Return procedure for CY15V104QI-20LPXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V104QI-20LPXI Tags
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M24C02-WMN6TP
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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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