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Infineon Technologies CY15V108QI-20LPXI
- Part No.:
- CY15V108QI-20LPXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15V108QI-20LPXI.pdf
- Description:
- IC FRAM 8MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:173
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Product details
Overview
CY15V108QI-20LPXI from Infineon is an 8-Mbit serial ferroelectric RAM (F-RAM) organized as 1024K × 8, operating on SPI interface at up to 20 MHz, with 1.71–1.89 V supply, industrial temperature range (–40°C to +85°C), and 10¹⁵ read/write endurance - deployed in real-time data logging systems requiring deterministic nonvolatile writes without write latency.
For engineers reviewing the CY15V108QI-20LPXI datasheet, CY15V108QI-20LPXI pinout, CY15V108QI-20LPXI application, or CY15V108QI-20LPXI equivalent, this device delivers instant-write capability, ultra-low standby current (3.5 µA), hardware/software write protection, dedicated 256-byte reflow-survivable sector, and Device ID/serial number support for traceability-critical embedded deployments.
Technical Context
The CY15V108QI-20LPXI implements a true SPI slave interface supporting modes 0 and 3, with zero-latency write execution - data commits immediately upon byte transfer completion, eliminating polling and timeout handling. Its ferroelectric memory array enables byte-level random access without page programming or erase cycles.
It integrates dual write protection: hardware-based via active-low WP pin (when WPEN=1) and software-controlled via WRDI instruction and configurable block protection (1/4, 1/2, or full array). A dedicated 256-byte special sector retains data across up to three standard reflow soldering cycles, enabling board-level serialization pre-deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 8 Mbit (1024K × 8) - supports 1 MB of byte-addressable nonvolatile storage with no erase overhead |
| SPI clock max | 20 MHz - enables 2.5 MB/s sustained write throughput without wait states |
| Endurance | 10¹⁵ read/write cycles - supports >27,000 writes/sec continuously for 15+ years in high-frequency logging |
| Data retention | 151 years at +85°C - ensures unpowered data integrity over full product lifecycle in industrial environments |
| Supply voltage | 1.71 V to 1.89 V - compatible with 1.8 V logic domains and low-power SoC interfaces |
| Standby current | 3.5 µA (typ) - minimizes quiescent power in battery-backed or energy-harvested nodes |
| Inrush current | 1.6 mA (typ) - controlled ramp prevents supply rail droop during cold start in dense PCB layouts |
Pinout & Package
Package: 8-pin ultra-thin fine-pitch land grid array (UFLGA), 2.0 mm × 2.5 mm, 0.4 mm pitch, RoHS-compliant, industrial-grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Active-low chip select input | Enables SPI communication; HIGH places device in 3.5 µA standby with tristated SO |
| SCK | Serial clock input | Synchronizes all I/O; rising edge latches SI, falling edge drives SO; supports 0–20 MHz with interruptible clock |
| 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 except during read operations |
| WP | Active-low write protect input | Blocks Status Register writes when WPEN=1; must tie to VDD if unused |
| DNU | No-connect terminal | Not internally connected; may float or tie to VDD per layout constraints |
| VSS | Ground reference | System ground return path; required for stable internal bias and ESD performance |
| VDD | Power supply input | 1.71–1.89 V supply; powers core logic, memory array, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| Instant nonvolatile write | Zero write latency - data written at bus speed; no polling, no erase, no page management required |
| Dedicated reflow-survivable sector | 256-byte F-RAM sector retains content through three 260°C reflow cycles - enables permanent board ID embedding |
| Multi-layer write protection | Hardware (WP pin) + software (WRDI, BP bits) - prevents accidental writes across full, half, or quarter memory array |
| Unique identification | Factory-programmed 64-bit Unique ID + 8-byte user-writable serial number - supports secure device authentication and BOM traceability |
| Ultra-low deep power-down | 0.90 µA typical current - extends battery life in always-on sensor nodes with infrequent wake-up intervals |
Applications
| Industrial Data Logger | Smart Metering Endpoint |
|---|---|
Use Scenario: Continuous timestamped sensor sampling (e.g., temperature, pressure) with power-loss resilience. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory storing last-known state and buffered readings prior to host upload. Use Value: Eliminates risk of data loss during brownouts - writes complete in <1 µs per byte, enabling sub-millisecond logging intervals. | Use Scenario: Tamper-evident energy usage recording with cryptographic signature storage. IC Role / Device Role / Timing Role: Secure, high-endurance storage for meter firmware logs, calibration constants, and digital signatures. Use Value: 10¹⁵ write cycles enable daily full-log archiving for >2700 years; Unique ID binds log entries to physical hardware. |
| Medical Diagnostic Sensor Hub | PLC I/O Module |
Use Scenario: Real-time acquisition of ECG/EEG waveforms in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-speed cyclic buffer capturing raw analog-to-digital samples before compression/transmission. Use Value: 20 MHz SPI interface sustains 2.5 MB/s write rate; 151-year retention guarantees audit-trail integrity for FDA-regulated devices. | Use Scenario: Storing configuration parameters, fault history, and firmware update staging in modular control units. IC Role / Device Role / Timing Role: Configuration EEPROM replacement with deterministic write timing and immunity to power interruption. Use Value: Hardware WP pin prevents corruption during hot-swap events; DNU pin simplifies UFLGA routing in space-constrained DIN-rail modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B108QI-20LPXI | Wider VDD range (1.8–3.6 V); same density, timing, and endurance | Supports mixed-voltage systems (e.g., 3.3 V MCU with 1.8 V peripherals) | Select when system lacks tight 1.71–1.89 V regulation or requires backward compatibility with legacy 3.3 V designs |
| FM25V05-G | 512 Kbit density (64K × 8); 1.7–2.2 V; 10¹⁴ endurance; 10 MHz max SPI | Limited capacity and bandwidth; lower cost for simpler logging tasks | Choose only when 512 Kbit suffices and 20 MHz throughput is unnecessary - not a drop-in replacement |
Compared with CY15B108QI-20LPXI, the CY15V108QI-20LPXI trades voltage flexibility for tighter 1.8 V domain optimization and lower inrush; versus FM25V05-G, it doubles density, doubles SPI speed, and increases endurance tenfold - making it suitable for next-generation industrial edge nodes demanding scalability and determinism.
Availability
CY15V108QI-20LPXI is available at Aetrix Electronics and suitable for industrial data loggers, smart metering endpoints, medical diagnostic sensor hubs, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and guaranteed RoHS-compliant sourcing.
Supply support for CY15V108QI-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, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
The EXCELON™ LP F-RAM product line targets deterministic, low-power, high-endurance nonvolatile storage for industrial, medical, and energy infrastructure applications where flash/EEPROM latency and wear-out are unacceptable.
FAQ
Is CY15V108QI-20LPXI pin-compatible with CY15B108QI-20LPXI?
Yes - both share identical 8-pin UFLGA package, pinout, and SPI command set. The only electrical difference is VDD range: CY15V108QI requires 1.71–1.89 V, while CY15B108QI supports 1.8–3.6 V. No PCB redesign is needed when migrating between them in 1.8 V systems.
Does the dedicated special sector require special initialization?
No - the 256-byte special sector is functionally identical to main memory but factory-characterized for reflow survivability. It is accessed using standard READ/WRITE opcodes with address range 0xFFFC00–0xFFFDFF; no configuration or unlock sequence is required.
Can SI and SO be wired to a single microcontroller pin?
Yes - the datasheet explicitly permits single-pin SPI (3-wire mode) by connecting SI and SO together. The device automatically tri-states SO during write operations and drives it during reads; microcontroller firmware must manage direction control or use open-drain with pull-up.
What happens during power-up if WP is left floating?
Leaving WP floating violates the datasheet requirement. WP must be tied to VDD if unused; otherwise, indeterminate logic levels may cause unintended write protection activation or latch-up risk. Floating WP can result in unpredictable Status Register writes or failure to enter protected mode reliably.
CY15V108QI-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:
- 8Mbit
- Memory Organization:
- 1M 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)
CY15V108QI-20LPXI FAQ
1.How can I place an order for CY15V108QI-20LPXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15V108QI-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 CY15V108QI-20LPXI reliable?
The price and inventory of CY15V108QI-20LPXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15V108QI-20LPXI is usually 5 days.
3.What payment methods are accepted for CY15V108QI-20LPXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15V108QI-20LPXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15V108QI-20LPXI?
CY15V108QI-20LPXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15V108QI-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 CY15V108QI-20LPXI?
For technical support, including CY15V108QI-20LPXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15V108QI-20LPXI requirements.
6.How does Aetrix verify that CY15V108QI-20LPXI is sourced from the original manufacturer or authorized distributors?
All CY15V108QI-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 CY15V108QI-20LPXI meets industry standards.
7.What is the process for return or replacement of CY15V108QI-20LPXI?
All CY15V108QI-20LPXI units undergo pre-shipment inspection (PSI). If there is an issue with CY15V108QI-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 CY15V108QI-20LPXI part is unused and in its original packaging.
Return procedure for CY15V108QI-20LPXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15V108QI-20LPXI Tags
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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
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24LC01BT-I/OT
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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
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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