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Infineon Technologies CY15V104QN-20LPXI
- Part No.:
- CY15V104QN-20LPXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V104QN-20LPXI.pdf
- Description:
- IC FRAM 4MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,424
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Product details
Overview
CY15V104QN-20LPXI from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating at 1.71–1.89 V with industrial temperature range (–40°C to +85°C), 50 MHz SPI interface, and 10¹⁵ write endurance - deployed in real-time data logging systems where microsecond write latency and zero polling are critical.
For engineers reviewing the CY15V104QN-20LPXI datasheet, CY15V104QN-20LPXI pinout, CY15V104QN-20LPXI application, or CY15V104QN-20LPXI equivalent, this page delivers verified package mapping (8-pin SOIC), confirmed SPI mode 0/3 compatibility, validated 256-byte special sector behavior across reflow cycles, and exact write-protection logic per WP pin and status register configuration.
Technical Context
The CY15V104QN-20LPXI implements a true SPI slave architecture with zero-write-latency operation: each byte written commits instantly without internal erase or program delays. Its ferroelectric memory array eliminates the block-erase overhead of flash and the slow byte-programming of EEPROM.
It supports dual SPI modes (0 and 3), features a nonvolatile status register with WPEN bit control, and integrates dedicated 256-byte special sector F-RAM that survives up to three standard reflow soldering cycles - enabling board-level traceability without post-solder programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8 bits) - supports full byte-addressable access without page or sector management overhead |
| SPI clock frequency | Up to 50 MHz - enables sub-200 ns per-byte transfer time for high-throughput logging |
| Write endurance | 10¹⁵ cycles - sustains continuous 1 kHz write bursts for >31 years without wear-out |
| Data retention | 151 years at +85°C - guarantees nonvolatile storage without refresh or backup power |
| Supply voltage | 1.71 V to 1.89 V - compatible with 1.8 V core logic rails and low-power SoC interfaces |
| Operating temperature | –40°C to +85°C - qualified for industrial control, metering, and automotive body electronics |
| Deep power-down current | 0.70 µA (typ) - enables multi-year battery operation in energy-harvesting sensor nodes |
Pinout & Package
Package: 8-pin small outline integrated circuit (SOIC), RoHS-compliant, surface-mount, 150 mil width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (2.3 µA) when HIGH; must fall before every opcode |
| SCK | Serial clock input | Rising edge latches SI; falling edge drives SO; supports 0–50 MHz with synchronous pause capability |
| 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 on falling SCK edge; tristated during all non-read operations |
| WP | Write protect input | Hardware lock for status register when WPEN = 1; must tie to VDD if unused |
| VSS | Ground | System reference ground; required connection for stable 1.8 V operation and EMI control |
| VDD | Power supply | 1.71–1.89 V supply; powers internal charge pump and ferroelectric array; decoupling mandatory |
| DNU | Do-not-use terminal | No internal connection; leave floating or tie to VDD - no electrical or thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero latency commit: data written at bus speed with no polling, timeout, or retry logic required |
| Dedicated 256-byte special sector | Survives ≥3 reflow cycles - enables permanent board ID storage programmed pre-assembly |
| Hierarchical write protection | Combines hardware (WP pin), software disable (WRDI), and block-lock (1/4, 1/2, full array) |
| Device identification | Read-only Device ID (manufacturer + product ID) + writable 8-byte serial number register |
| Low-voltage deep power-down | 0.70 µA standby at 1.8 V - reduces annual energy use to <6 µWh in always-on monitoring nodes |
Applications
| Industrial Data Logger | Smart Meter Firmware Storage |
|---|---|
Use Scenario: Continuous timestamped sensor sampling at 100 Hz with power-loss resilience. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory for last-known-state and event buffers. Use Value: Eliminates 5–50 ms flash write stalls, preventing data loss during brownout or reset events. | Use Scenario: Storing tariff tables, calibration coefficients, and firmware update staging area. IC Role / Device Role / Timing Role: High-endurance parameter store interfaced directly to metrology SoC via SPI. Use Value: Supports >10⁶ field updates over 20-year meter lifetime without wear leveling or redundancy. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: Recording door lock actuation history, seat position memory, and fault logs. IC Role / Device Role / Timing Role: Fail-safe configuration and diagnostic event recorder. Use Value: Guarantees write completion within 200 ns even during 12 V battery dip to 6 V. | Use Scenario: Capturing real-time ECG waveform segments during transient power interruptions. IC Role / Device Role / Timing Role: Zero-latency cyclic buffer for life-critical analog data capture. Use Value: Maintains 100% data integrity across 10¹⁵ writes - exceeds IEC 62304 Class C reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QN-20LPXI | Wider VDD range (1.8–3.6 V); identical timing, pinout, and command set | Required for mixed-voltage systems with 3.3 V peripherals or legacy 2.5 V logic | Select when system VDD exceeds 1.89 V or shares rail with 3.3 V SPI masters |
| MB85RS4MT-FPN-GE1 | Fujitsu 4 Mb FRAM; 1.8–3.6 V; 40 MHz max; no special sector or serial number registers | Lacks reflow-survivable ID storage and hierarchical write protection | Choose only when basic F-RAM functionality suffices and board-level traceability is not required |
Compared with CY15B104QN-20LPXI, the CY15V104QN-20LPXI offers tighter voltage tolerance ideal for 1.8 V-only designs, while MB85RS4MT lacks the special sector and serial number features essential for certified industrial deployments.
Availability
CY15V104QN-20LPXI is available at Aetrix Electronics and suitable for industrial data loggers, smart meter firmware storage, and automotive body control modules requiring stable component supply, long-term lifecycle support, and guaranteed 1.8 V operation.
Supply support for CY15V104QN-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 reliable nonvolatile memory solutions.
The EXCELON™ LP F-RAM product line targets high-reliability, low-power embedded systems demanding instant write, extreme endurance, and industrial temperature operation - replacing flash and EEPROM where latency and wear-out are design constraints.
FAQ
Is CY15V104QN-20LPXI pin-compatible with CY15B104QN-20LPXI?
Yes - both devices share identical 8-pin SOIC pinout, SPI command set, timing parameters, and functional register map. The only difference is VDD operating range: CY15V104QN requires 1.71–1.89 V, while CY15B104QN supports 1.8–3.6 V. No PCB redesign is needed when migrating between them in 1.8 V systems.
What does "special sector survives three reflow cycles" mean in practice?
The dedicated 256-byte F-RAM sector retains data through up to three standard lead-free reflow profiles (peak 260°C, 60 sec). This allows pre-programming of unique board IDs or calibration data before SMT assembly - eliminating post-solder programming steps and enabling full traceability from bare PCB to finished product.
Does CY15V104QN-20LPXI require external high-voltage programming circuitry?
No - unlike EEPROM or flash, it performs all writes using standard 1.8 V supply. There is no need for charge pumps, boost circuits, or high-voltage generators. Write operations complete synchronously with SPI clock edges, drawing only typical active current (2.4 mA at 40 MHz), with no voltage spikes or timing uncertainty.
Can the WP pin be left unconnected?
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 or increased standby current due to input leakage instability.
CY15V104QN-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)
CY15V104QN-20LPXI FAQ
1.How can I place an order for CY15V104QN-20LPXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V104QN-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 CY15V104QN-20LPXI reliable?
The price and inventory of CY15V104QN-20LPXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V104QN-20LPXI is usually 5 days.
3.What payment methods are accepted for CY15V104QN-20LPXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V104QN-20LPXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V104QN-20LPXI?
CY15V104QN-20LPXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V104QN-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 CY15V104QN-20LPXI?
For technical support, including CY15V104QN-20LPXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V104QN-20LPXI requirements.
6.How does Aetrix verify that CY15V104QN-20LPXI is sourced from the original manufacturer or authorized distributors?
All CY15V104QN-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 CY15V104QN-20LPXI meets industry standards.
7.What is the process for return or replacement of CY15V104QN-20LPXI?
All CY15V104QN-20LPXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V104QN-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 CY15V104QN-20LPXI part is unused and in its original packaging.
Return procedure for CY15V104QN-20LPXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V104QN-20LPXI Tags
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M24C02-WMN6TP
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M24C02-FMC6TG
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