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Infineon Technologies CY15B104QN-20LPXI
- Part No.:
- CY15B104QN-20LPXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15B104QN-20LPXI.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,371
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Product details
Overview
CY15B104QN-20LPXI from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating over SPI at up to 50 MHz with 1.8 V–3.6 V supply, 10¹⁵ write endurance, and 151-year data retention - deployed in industrial data loggers requiring frequent nonvolatile writes without wear-out.
For engineers reviewing the CY15B104QN-20LPXI datasheet, CY15B104QN-20LPXI pinout, CY15B104QN-20LPXI application, or CY15B104QN-20LPXI equivalent, key selection criteria include instant write capability (no polling), industrial temperature range (–40°C to +85°C), hardware/software write protection, and SOIC-8 package compatibility with legacy EEPROM/flash footprints.
Technical Context
The CY15B104QN-20LPXI implements a true SPI slave interface supporting modes 0 and 3, with zero-latency writes enabled by ferroelectric memory cells that switch polarization states without charge-pump programming delays. Its internal architecture includes a dedicated 256-byte special sector surviving three reflow cycles and separate Device ID/Serial Number registers for traceability.
It features dual-layer write protection: hardware-level via active-low WP pin (when WPEN=1) and software-level via WRDI instruction and block-protection bits controlling 1/4, 1/2, or full array lock. The status register is nonvolatile and retains protection settings across power cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8 bits) - supports byte-level random access without page erase overhead |
| SPI speed | Up to 50 MHz - enables sub-200 ns per byte write time, eliminating bus idle waiting |
| Write endurance | 10¹⁵ cycles - sustains continuous logging at 1 kHz for >31 years without degradation |
| Data retention | 151 years at +85°C - guarantees archival integrity in unpowered industrial edge nodes |
| Supply voltage | 1.8 V to 3.6 V - interoperable with 1.8 V, 2.5 V, and 3.3 V microcontroller I/O domains |
| Operating temp | –40°C to +85°C - qualified for deployment in motor drives, PLCs, and outdoor metering |
| Deep power-down current | 0.70 µA (typ) - extends battery life in energy-harvesting sensor nodes |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), 150 mil width, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (2.3 µA) when HIGH, synchronizes all SPI opcodes on falling edge |
| SCK | Serial clock input | Drives all timing; inputs sampled on rising edge, outputs driven on falling edge; supports 0–50 MHz with interrupt tolerance |
| SI | Serial data input | Receives opcodes, addresses, and write data; must be held valid during operation to meet IDD specs |
| SO | Serial data output | Drives read data and status bits; tristated except during read cycles; compatible with SI for single-wire mode |
| 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 PCB connection |
| VDD | Power supply | Core and I/O supply; decoupling capacitor (0.1 µF) required within 5 mm of pin |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - not grounded or driven |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Writes complete at bus speed - no delay, no polling, no timeout handling required in firmware |
| Dedicated 256-byte special sector | Retains calibration data or firmware signatures through ≥3 lead-free reflow cycles (260°C peak) |
| Multi-layer write protection | Combines hardware (WP pin), software disable (WRDI), and configurable block locks (1/4, 1/2, full array) |
| Unique ID + serial number | Factory-programmed 64-bit Unique ID and user-writable 8-byte serial number for board-level traceability |
| Low-power deep sleep mode | 0.70 µA typical current draw - enables multi-year operation on coin-cell batteries in remote sensors |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (voltage, current, temperature) at 100 Hz in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Nonvolatile scratchpad storing last 10,000 readings with guaranteed write integrity during mains dropout. Use Value: Eliminates flash wear leveling firmware and avoids data loss during brownout - all writes succeed instantly at full SPI rate. | Use Scenario: Storing tariff schedules, billing counters, and tamper-event logs in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Secure, long-life storage for regulatory-critical parameters requiring 20+ year field reliability. Use Value: Meets ANSI C12.19 retention requirements (151 years @ +85°C) without periodic refresh or backup capacitors. |
| Programmable Logic Controller (PLC) | Medical Diagnostic Device |
Use Scenario: Capturing motion-control trajectory points and fault history in real-time servo loops. IC Role / Device Role / Timing Role: High-speed configuration store updated every 5 ms during runtime reconfiguration. Use Value: Enables deterministic <10 µs write latency - critical for maintaining control loop jitter below 1 µs. | Use Scenario: Recording ECG waveform snapshots and calibration coefficients in portable ultrasound units. IC Role / Device Role / Timing Role: Radiation-tolerant, low-power nonvolatile buffer for patient session data before SD card transfer. Use Value: Survives sterilization cycles and maintains data integrity without volatile SRAM + battery backup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15V104QN-20LPXI | Narrower 1.71–1.89 V supply range; identical timing, endurance, and pinout | Targeted for 1.8 V-only systems (e.g., ultra-low-power IoT SoCs); not suitable for mixed-voltage 3.3 V designs | Select only if system VDD is strictly regulated within 1.71–1.89 V; otherwise CY15B104QN offers broader compatibility. |
| AT45DB041E-SSHN-B | 4 Mb DataFlash with 512-byte pages; requires page erase before write; 100k endurance; 20-year retention | Requires firmware wear leveling and polling; higher latency; lower reliability in high-write scenarios | Use only where cost is primary constraint and write frequency <100×/day; avoid for real-time logging or control. |
Compared with CY15V104QN-20LPXI and AT45DB041E-SSHN-B, the CY15B104QN-20LPXI uniquely delivers industrial-voltage flexibility, instant writes, and 10¹³× higher endurance - making it the sole choice for deterministic, high-cycle nonvolatile storage.
Availability
CY15B104QN-20LPXI is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, programmable logic controllers, and medical diagnostic devices requiring stable component supply across extended product lifecycles.
Supply support for CY15B104QN-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 manufacturer specializing in power management, automotive ICs, and high-reliability memory solutions.
The EXCELON™ LP F-RAM product line targets mission-critical industrial and medical applications demanding zero-write-latency, extreme endurance, and guaranteed 151-year data retention without backup power.
FAQ
Is CY15B104QN-20LPXI pin-compatible with standard SPI EEPROMs like AT25DF041?
Yes - it uses identical SOIC-8 pinout (CS, SCK, SI, SO, WP, VSS, VDD, DNU) and supports same SPI command set for basic read/write operations. However, F-RAM-specific commands (e.g., special sector access, unique ID read) require minor firmware updates. No hardware change is needed for drop-in replacement in most legacy designs.
Does the 256-byte special sector require separate addressing or command syntax?
Yes - it uses dedicated opcodes (0x77 for read, 0x76 for write) and fixed 16-bit address range (0x0000–0x00FF). Unlike main array, this sector bypasses block protection bits and retains data through reflow soldering due to hardened ferroelectric cell design - intended for factory-programmed calibration or security keys.
What happens if the WP pin is left floating during operation?
Leaving WP floating violates the datasheet requirement and may cause unpredictable status register locking. When WPEN=1, an undefined WP voltage can intermittently assert protection, blocking writes to the status register and preventing configuration changes. Always tie WP to VDD (via 10 kΩ pull-up) if unused to ensure deterministic behavior.
Can CY15B104QN-20LPXI operate reliably at 50 MHz across its full temperature range?
Yes - AC switching characteristics in the datasheet (Rev. *O, Table 12) specify tCH/tCL ≥20 ns and tSU/tH ≥8 ns at –40°C to +85°C, fully supporting 50 MHz (20 ns period) with margin. Layout best practices (matched trace lengths, ground plane, local decoupling) are required to maintain signal integrity at maximum speed.
CY15B104QN-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:
- 1.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-GQFN (3.23x3.28)
CY15B104QN-20LPXI FAQ
1.How can I place an order for CY15B104QN-20LPXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B104QN-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 CY15B104QN-20LPXI reliable?
The price and inventory of CY15B104QN-20LPXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B104QN-20LPXI is usually 5 days.
3.What payment methods are accepted for CY15B104QN-20LPXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B104QN-20LPXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B104QN-20LPXI?
CY15B104QN-20LPXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B104QN-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 CY15B104QN-20LPXI?
For technical support, including CY15B104QN-20LPXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B104QN-20LPXI requirements.
6.How does Aetrix verify that CY15B104QN-20LPXI is sourced from the original manufacturer or authorized distributors?
All CY15B104QN-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 CY15B104QN-20LPXI meets industry standards.
7.What is the process for return or replacement of CY15B104QN-20LPXI?
All CY15B104QN-20LPXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15B104QN-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 CY15B104QN-20LPXI part is unused and in its original packaging.
Return procedure for CY15B104QN-20LPXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15B104QN-20LPXI Tags
-
M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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