My Inquiry
My Account
Infineon Technologies CY15B108QN-20LPXIT
- Part No.:
- CY15B108QN-20LPXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-UQFN
- Datasheet:
-
CY15B108QN-20LPXIT.pdf
- Description:
- IC FRAM 8MBIT SPI 20MHZ 8GQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,593
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY15B108QN-20LPXIT from Infineon is an 8 Mb serial ferroelectric RAM (F-RAM) organized as 1024K × 8, operating at up to 40 MHz SPI clock, with 1.8 V–3.6 V supply, 1015 write endurance, and 151-year data retention. It serves as a non-volatile memory replacement for EEPROM/flash in high-write-cycle industrial data loggers.
For engineers reviewing the CY15B108QN-20LPXIT datasheet, CY15B108QN-20LPXIT pinout, CY15B108QN-20LPXIT application, or CY15B108QN-20LPXIT equivalent, this device delivers instant non-volatile writes, zero write latency, hardware/software write protection, and SPI mode 0/3 compatibility - critical for deterministic real-time logging and power-fail-safe storage.
Technical Context
The CY15B108QN-20LPXIT implements a true SPI slave interface with no internal write buffers or erase cycles; every byte written commits instantly to non-volatile ferroelectric storage. Its status register supports WPEN-controlled hardware write protection and software block lock for 1/4, 1/2, or full array.
It integrates a dedicated 256-byte special sector F-RAM that survives up to three reflow soldering cycles, plus factory-programmed Device ID (0x01), product ID (0x15), and user-writable 8-byte serial number registers - enabling board-level traceability and secure identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 8 Mb (1024K × 8 bits); enables compact storage of >1 million sensor samples without external compression. |
| SPI max frequency | 40 MHz; supports 5 MB/s sustained write throughput - 100× faster than typical SPI EEPROM. |
| Write endurance | 1015 cycles; eliminates wear leveling firmware and extends field life beyond 30 years in 100-Hz logging. |
| Data retention | 151 years at +85°C; guarantees archival integrity without refresh or backup power. |
| Supply voltage | 1.8 V–3.6 V; interoperable with 1.8 V, 2.5 V, and 3.3 V microcontrollers without level shifters. |
| Operating temperature | –40°C to +85°C industrial grade; qualified for deployment in motor drives and PLC I/O modules. |
| Deep power-down current | 0.90 µA typical; enables multi-year battery operation in wireless sensor nodes. |
Pinout & Package
Package: 8-pin SOIC (3.9 mm × 4.9 mm, 1.27 mm pitch), RoHS-compliant, industrial-grade plastic body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Active-low chip select input | Enables SPI communication; HIGH places device in standby (3.5 µA), eliminating need for software sleep commands. |
| SCK | Serial clock input | Accepts 0–40 MHz synchronous clock; rising edge latches SI, falling edge drives SO - supports glitch-free bus arbitration. |
| SI | Serial data input | Receives opcodes, addresses, and write data; may be shared with SO in single-wire mode per Infineon note 2. |
| SO | Serial data output | Drives read data on falling SCK edge; tristated when CS HIGH or during write - prevents bus contention. |
| WP | Hardware write protect input | Blocks status register writes when WPEN = 1 and WP = LOW; must tie to VDD if unused to prevent accidental lockout. |
| VSS | Ground reference | System ground return path; requires low-impedance connection to minimize noise coupling into F-RAM array. |
| VDD | Power supply input | 1.8–3.6 V supply; powers internal charge pump for ferroelectric polarization switching - no external VPP required. |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD - leaving unconnected avoids parasitic leakage paths. |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero write latency: data committed on final SCK edge - no polling, no timeout handling, no failed-write recovery logic. |
| Dedicated 256-byte special sector | Survives ≥3 reflow cycles; stores calibration coefficients or MAC addresses directly in solder-reflow-stable non-volatile memory. |
| Multi-layer write protection | Combines hardware (WP pin), software (WRDI), and block-lock (1/4/1/2/full) - prevents accidental overwrites in safety-critical firmware updates. |
| Factory-unique identifiers | Read-only Device ID (0x01/0x15) + writable 8-byte serial number - enables secure device onboarding and counterfeit detection. |
| Ultra-low deep power-down | 0.90 µA typical current draw; allows integration into energy-harvesting systems with <10 µW average power budgets. |
Applications
| Industrial Data Logger | Smart Meter Firmware Storage |
|---|---|
Use Scenario: Continuous 100 Hz timestamped sensor sampling in DIN-rail mounted controllers with frequent power interruptions. IC Role / Device Role / Timing Role: Non-volatile scratchpad memory holding last valid sample set and runtime configuration across brownouts. Use Value: Eliminates supercapacitor backup and flash wear leveling; guarantees write success on every power cycle due to instant commit. |
Use Scenario: Storing tariff tables, billing counters, and cryptographic keys in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store updated daily via HAN interface with guaranteed atomic writes. Use Value: Prevents partial writes during grid transients; 1015 endurance supports >100 years of daily key rotation without degradation. |
| PLC I/O Module Configuration | Medical Diagnostic Device Calibration |
Use Scenario: Field-configurable digital I/O mapping and analog scaling parameters in modular programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration register bank retaining settings across firmware upgrades and hot-swap events. Use Value: Enables zero-downtime reconfiguration; 40 MHz SPI allows full 8 Mb reload in <200 ms - faster than boot ROM initialization. |
Use Scenario: Storing sensor-specific gain/offset coefficients and self-test results in portable ultrasound transducers. IC Role / Device Role / Timing Role: Reflow-stable calibration memory surviving sterilization and repeated device reassembly. Use Value: Special sector retains coefficients through ≥3 reflow cycles - eliminates post-assembly recalibration labor and test costs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-volatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B108QSN-20LPXI | Same die, 8-pin UFLGA package (2.5 mm × 3.0 mm); 0.4 mm pitch; lower profile but requires reflow-optimized layout. | Better suited for space-constrained portable medical devices where PCB footprint is critical. | Select for ultra-thin designs; verify stencil design and solder paste volume for fine-pitch assembly. |
| FM25V08-G | Cypress (now Infineon) 8 Mb F-RAM, 2.7–3.6 V only; no 1.8 V support; identical SPI timing and command set. | Limited to 3.3 V systems; lacks dual-voltage flexibility for mixed-supply MCUs. | Choose only if existing 3.3 V design uses FM25V08-G footprint and no 1.8 V operation is needed. |
Compared with CY15B108QSN-20LPXI and FM25V08-G, the CY15B108QN-20LPXIT uniquely supports 1.8 V operation and SOIC packaging - simplifying legacy board upgrades and enabling direct drop-in replacement in industrial 1.8/3.3 V systems without layout changes.
Availability
CY15B108QN-20LPXIT is available at Aetrix Electronics and suitable for industrial data loggers, smart meter firmware storage, and PLC I/O module configuration requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for CY15B108QN-20LPXIT 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 non-volatile memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
The EXCELON™ LP F-RAM product line targets high-reliability, high-endurance non-volatile storage in industrial automation, energy metering, and medical instrumentation - replacing legacy EEPROM/flash where write speed and longevity are critical.
FAQ
Is CY15B108QN-20LPXIT pin-compatible with standard SPI EEPROMs like AT25DF081?
No. While it shares the same 8-pin SOIC footprint and SPI interface, CY15B108QN-20LPXIT uses different opcodes, lacks sector erase commands, and has no write-enable polling requirement. Hardware pinout matches, but firmware must be adapted to F-RAM's instant-write protocol and status register structure.
Does the 256-byte special sector require separate addressing or commands?
Yes. The special sector is accessed using dedicated opcodes (0x77 for read, 0x76 for write) and a fixed 16-bit address range (0xFF00–0xFFFF). It resides outside the main 1024K × 8 array and is protected by its own lock bit in the status register - independent of main array block protection.
Can WP pin be left unconnected in a design?
No. Per Infineon datasheet Table 1, WP must be tied to VDD if not actively used. Leaving it floating risks unintended write protection activation due to noise coupling, potentially locking the status register and preventing future configuration changes.
What is the maximum junction temperature during reflow for the SOIC package?
The CY15B108QN-20LPXIT SOIC package is qualified for standard lead-free reflow per JEDEC J-STD-020 Rev E: peak temperature 260°C for ≤40 seconds, with ramp rate ≤3°C/s. The 256-byte special sector is specifically characterized to retain data after three such cycles.
CY15B108QN-20LPXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-LP,F-RAM™
- Package/Case:
- 8-UQFN
- Packaging:
- Tape & Reel (TR)
- 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:
- 20 ns
- 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)
CY15B108QN-20LPXIT FAQ
1.How can I place an order for CY15B108QN-20LPXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B108QN-20LPXIT 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 CY15B108QN-20LPXIT reliable?
The price and inventory of CY15B108QN-20LPXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B108QN-20LPXIT is usually 5 days.
3.What payment methods are accepted for CY15B108QN-20LPXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B108QN-20LPXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B108QN-20LPXIT?
CY15B108QN-20LPXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B108QN-20LPXIT 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 CY15B108QN-20LPXIT?
For technical support, including CY15B108QN-20LPXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B108QN-20LPXIT requirements.
6.How does Aetrix verify that CY15B108QN-20LPXIT is sourced from the original manufacturer or authorized distributors?
All CY15B108QN-20LPXIT 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 CY15B108QN-20LPXIT meets industry standards.
7.What is the process for return or replacement of CY15B108QN-20LPXIT?
All CY15B108QN-20LPXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY15B108QN-20LPXIT, 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 CY15B108QN-20LPXIT part is unused and in its original packaging.
Return procedure for CY15B108QN-20LPXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15B108QN-20LPXIT Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
