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Infineon Technologies CY15V104QI-20LPXC
- Part No.:
- CY15V104QI-20LPXC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V104QI-20LPXC.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:430
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Product details
Overview
CY15V104QI-20LPXC 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. It delivers instant nonvolatile writes without polling, supports hardware/software write protection, and includes a dedicated 256-byte special sector surviving three reflow cycles - ideal for industrial data logging in programmable logic controllers.
For engineers reviewing the CY15V104QI-20LPXC datasheet, CY15V104QI-20LPXC pinout, CY15V104QI-20LPXC application, or CY15V104QI-20LPXC equivalent, key selection criteria include guaranteed 20 MHz SPI timing, sub-1 µA hibernate current, industrial −40°C to +85°C operation, inrush current control, and compatibility with legacy SPI EEPROM/flash footprints requiring no firmware rewrite.
Technical Context
The CY15V104QI-20LPXC implements a true SPI slave architecture supporting modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), with zero-latency write execution - data commits immediately after byte transfer without status polling. Its internal F-RAM array eliminates erase-before-write overhead and enables deterministic 20 MHz bus-speed writes across full temperature range.
It integrates dual-layer write protection: hardware-level WP pin control (active-low, tied to VDD if unused) and software-configurable status register bits enabling 1/4, 1/2, or full-array block protection. The device also embeds nonvolatile registers for manufacturer ID, product ID, unique device ID, and user-writable 8-byte serial number.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512K × 8), directly addressable via 20-bit SPI address field |
| Interface Speed | Up to 20 MHz SPI clock - enables 2.5 MB/s sustained write throughput with no wait states |
| Write Endurance | 10¹⁵ read/write cycles - supports >27,000 writes/sec continuously for 10 years without wear-out |
| Data Retention | 151 years at +85°C - validated per JEDEC JESD22-A117, eliminating periodic refresh or backup power |
| Supply Voltage | 1.71 V to 1.89 V - optimized for 1.8 V systems with ±5% tolerance, reducing LDO overhead |
| Deep Power-Down Current | 0.70 µA typical - enables multi-year battery operation in energy-harvesting sensor nodes |
| Inrush Current Control | 1.5 mA typical at power-up - prevents voltage droop in shared 1.8 V rails during cold start |
Pinout & Package
Package: 8-pin ultra-thin fine-pitch land grid array (UFLGA), 2.0 mm × 2.5 mm × 0.5 mm, RoHS-compliant, industrial-grade moisture sensitivity level (MSL 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (2.3 µA) when HIGH, enables SCK synchronization when LOW |
| SCK | Serial clock input | Edge-triggered SPI clock (0–20 MHz); rising edge latches SI, falling edge drives SO |
| SI | Serial data input | Accepts opcodes, addresses, and write data; must be driven to valid logic level to meet IDD specs |
| SO | Serial data output | Drives read data only during active read cycles; tristated otherwise to prevent bus contention |
| WP | Write protect input | Hardware lock for status register when WPEN=1; must tie to VDD if unused to avoid accidental protection |
| VSS | Ground | Primary return path for all internal circuits; 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 |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - not a test pad or thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| Instant nonvolatile write | Zero write latency - data committed on final SCK falling edge; no polling or timeout handling required in host firmware |
| Dedicated 256-byte special sector | Retains data through ≥3 lead-free reflow cycles (260°C peak) - enables permanent board identification or calibration storage |
| Multi-level write protection | Hardware (WP pin) + software (WRDI instruction + block-protection bits) - prevents unintended writes during brown-out or firmware faults |
| Unique device identification | Factory-programmed 64-bit unique ID + 8-byte user-writable serial number - supports secure device onboarding and traceability |
| Low-voltage inrush control | 1.5 mA max inrush current - avoids triggering undervoltage lockout in 1.8 V power domains during power sequencing |
Applications
| Industrial Data Logger | Smart Metering |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (e.g., temperature, pressure) in remote RTUs with infrequent telemetry uploads. IC Role / Device Role / Timing Role: Nonvolatile buffer storing raw measurements between transmissions; operates as SPI slave with deterministic 20 MHz write bursts. Use Value: 10¹⁵ endurance ensures >100 years of daily 10,000-sample logging without wear-out; 151-year retention guarantees data integrity during decades-long deployments. | Use Scenario: Storing tariff schedules, billing history, and tamper-event logs in electricity/water meters with sealed battery backup. IC Role / Device Role / Timing Role: Primary event memory holding time-critical metering records; accessed via SPI under MCU control during power-fail interrupt. Use Value: Sub-1 µA hibernate current extends 10-year battery life; instant writes capture last-valid state before main power loss - no capacitor hold-up needed. |
| Programmable Logic Controller (PLC) | Medical Diagnostic Equipment |
Use Scenario: Storing configuration parameters, runtime diagnostics, and fault history in DIN-rail mounted PLCs exposed to vibration and wide temperature swings. IC Role / Device Role / Timing Role: Configuration and event log storage; interfaces via SPI to ARM Cortex-M7 host with real-time OS. Use Value: −40°C to +85°C operation ensures reliability in unconditioned cabinets; 1.71–1.89 V supply matches PLC's 1.8 V rail, eliminating level-shifting. | Use Scenario: Capturing calibration coefficients, usage counters, and safety-critical fault logs in portable ultrasound or ECG devices with strict IEC 62304 compliance. IC Role / Device Role / Timing Role: Secure, traceable memory for regulatory audit trails; stores unique serial numbers and calibration timestamps. Use Value: Factory-unique 64-bit ID + writable 8-byte serial number satisfies UDI requirements; RoHS/UFLGA package meets medical PCB thickness constraints. |
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-20LPXC | Wider VDD range (1.8–3.6 V); identical pinout, timing, and feature set | Supports mixed-voltage systems (e.g., 3.3 V MCU with 1.8 V peripherals); lacks 1.71 V low-end margin | Select when system VDD exceeds 1.89 V or requires backward compatibility with 3.3 V designs |
| AT45DB041E-SSHN-B | 4-Mbit DataFlash; requires erase-before-write, 100k endurance, 20-year retention, 66 MHz max SPI | Higher write latency (ms-scale), lower endurance limits field upgrade frequency and logging density | Select only if cost sensitivity outweighs write performance and longevity requirements |
Compared with CY15B104QI-20LPXC, the CY15V104QI-20LPXC offers tighter 1.71–1.89 V operation critical for ultra-low-power 1.8 V systems, while AT45DB041E introduces erase latency and endurance limitations that constrain high-frequency data capture - making CY15V104QI-20LPXC optimal for industrial logging where write determinism and longevity are non-negotiable.
Availability
CY15V104QI-20LPXC is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, programmable logic controllers, and medical diagnostic equipment requiring stable component supply across extended product lifecycles.
Supply support for CY15V104QI-20LPXC 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, connectivity, and memory solutions for industrial, automotive, and IoT applications.
The EXCELON™ LP F-RAM product line targets high-reliability, low-power nonvolatile memory applications demanding extreme endurance and instant writes - specifically engineered to replace serial flash and EEPROM in mission-critical data logging and control systems.
FAQ
Is CY15V104QI-20LPXC pin-compatible with standard SPI EEPROMs like the AT25DF041?
Yes - it uses the same 8-pin UFLGA footprint and SPI command set (Read, Write, WREN, WRDI, RDSR, WRSR), enabling drop-in replacement without PCB redesign. However, unlike EEPROMs, it requires no erase cycle or status polling, and its WP pin behavior differs: WP must be tied high if unused, whereas EEPROMs often allow floating WP.
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 and Write opcodes (0x03 and 0x02). No dedicated instructions are needed; it behaves identically to main array memory but retains data through reflow soldering due to enhanced ferroelectric layer stability.
How does inrush current control function during power-up?
The device internally limits inrush to 1.5 mA typical by sequencing internal power domains and pre-charging critical nodes. This prevents voltage sag on shared 1.8 V rails, eliminating need for external inrush limiters or oversized bulk capacitors - verified across −40°C to +85°C with 100 nF local decoupling.
Can the unique device ID be read without issuing a Write Enable command?
Yes - the 64-bit unique ID is stored in read-only registers and accessible via the RDID (0xAB) command without prior WREN. This allows secure device identification during boot or provisioning without altering memory state or requiring write-enable sequences.
CY15V104QI-20LPXC 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15V104QI-20LPXC FAQ
1.How can I place an order for CY15V104QI-20LPXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QI-20LPXC 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-20LPXC reliable?
The price and inventory of CY15V104QI-20LPXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QI-20LPXC is usually 5 days.
3.What payment methods are accepted for CY15V104QI-20LPXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QI-20LPXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QI-20LPXC?
CY15V104QI-20LPXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QI-20LPXC 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-20LPXC?
For technical support, including CY15V104QI-20LPXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QI-20LPXC requirements.
6.How does Aetrix verify that CY15V104QI-20LPXC is sourced from the original manufacturer or authorized distributors?
All CY15V104QI-20LPXC 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-20LPXC meets industry standards.
7.What is the process for return or replacement of CY15V104QI-20LPXC?
All CY15V104QI-20LPXC units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QI-20LPXC, 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-20LPXC part is unused and in its original packaging.
Return procedure for CY15V104QI-20LPXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V104QI-20LPXC Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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M24C02-FMC6TG
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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