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Infineon Technologies CY15B102Q-SXET
- Part No.:
- CY15B102Q-SXET
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
CY15B102Q-SXET.pdf
- Description:
- IC FRAM 2MBIT SPI 25MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:948
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Product details
Overview
CY15B102Q-SXET from Cypress Semiconductor is a 2-Mbit (256 K × 8) serial SPI automotive-grade ferroelectric RAM (F-RAM), functioning as nonvolatile memory with RAM-like read/write behavior, 25 MHz max SPI clock, –40 °C to +125 °C operation, and AEC-Q100 Grade 1 compliance-used in engine control units for real-time logging of sensor data without write latency.
For engineers reviewing the CY15B102Q-SXET datasheet, CY15B102Q-SXET pinout, CY15B102Q-SXET application, or CY15B102Q-SXET equivalent, key selection criteria include NoDelay™ write performance, 10¹³ endurance cycles, hardware/software write protection, SPI mode 0/3 compatibility, and SOIC-8 packaging for automotive ECU and ADAS black-box recorders.
Technical Context
The CY15B102Q-SXET implements a synchronous SPI slave interface with dual-mode support (CPOL/CPHA = 0/0 and 1/1), enabling direct drop-in replacement for serial flash and EEPROM. Its internal logic includes an 18-bit address counter, 3-bit opcode decoder, and nonvolatile status register controlling block protection and WPEN.
Write operations complete at bus speed with zero polling delay due to ferroelectric memory cell architecture-data is committed immediately after each byte transfer. The device uses dedicated SI/SO pins (not shared bidirectional) and supports HOLD suspension of ongoing transfers while SCK is low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 K × 8), directly addressing 262,144 bytes via 18-bit address space |
| SPI Clock Frequency | Up to 25 MHz-enables 3.125 MB/s theoretical throughput with no wait states |
| Endurance | 10¹³ read/write cycles-supports >27,000 writes/sec continuously for 10+ years in data logger applications |
| Data Retention | 121 years at +85 °C-guaranteed nonvolatile storage without refresh or backup power |
| Operating Voltage | 2.0 V to 3.6 V-compatible with automotive 3.3 V supply rails and brown-out tolerant |
| Temperature Range | –40 °C to +125 °C (Automotive-E)-qualified per AEC-Q100 Grade 1 for under-hood deployment |
| Active Current | 5 mA at 25 MHz-reduces thermal load in space-constrained ECUs compared to flash |
Pinout & Package
8-pin Small Outline Integrated Circuit (SOIC) package, surface-mount, 150 mil body width, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HOLD | Input control signal | Suspends active SPI transaction when pulled LOW; requires SCK to be LOW during transition-enables CPU task preemption without data corruption |
| SCK | Input clock | Rising-edge sampled input; defines timing for SI latching and SO output-supports variable-frequency clocking from 0 to 25 MHz |
| CS | Active-low chip select | Activates device and enables SCK detection; forces standby mode and tri-states SO when HIGH-allows multi-device SPI bus sharing |
| SI | Serial input | Receives opcodes, addresses, and write data on rising SCK edge-must be driven to valid logic level to meet IDD specs |
| SO | Serial output | Drives read data and status bits on falling SCK edge-tri-stated when CS HIGH or HOLD LOW |
| WP | Hardware write protect | Blocks Status Register writes when LOW and WPEN=1-prevents accidental configuration changes in harsh ECU environments |
| VSS | Ground reference | System ground connection required for stable logic thresholds and EMI control |
| VDD | Power supply | 2.0–3.6 V supply input; powers internal logic, F-RAM array, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| NoDelay™ Write Architecture | Eliminates write polling and timeout handling-enables deterministic sub-microsecond write completion per byte |
| Ferroelectric Memory Cell | Delivers 10¹³ endurance and 121-year retention without wear leveling or ECC overhead |
| Dual SPI Mode Support | Interoperates with microcontrollers using either Mode 0 (CPOL=0, CPHA=0) or Mode 3 (CPOL=1, CPHA=1) |
| Three-Tier Write Protection | Combines hardware (WP pin), software (WREN/WRDI), and block-level (BP0/BP1 bits) control for secure firmware and calibration data |
| Device ID Read Capability | Provides Manufacturer ID (0x01) and Product ID (0x52) via RDID command-enables runtime part validation in production diagnostics |
Applications
| Engine Control Unit (ECU) Data Logging | Advanced Driver Assistance Systems (ADAS) Event Recorder |
|---|---|
Use Scenario: Continuous recording of crankshaft position, throttle angle, and O2 sensor values during vehicle operation. IC Role / Device Role / Timing Role: Nonvolatile buffer storing time-stamped telemetry at ≥1 kHz sampling rate without data loss during power interruption. Use Value: Eliminates flash write latency bottlenecks-ensures every sample is committed before next interrupt, preserving diagnostic integrity across 10+ million ignition cycles. | Use Scenario: Capturing pre-crash video metadata, radar timestamps, and camera trigger signals during collision events. IC Role / Device Role / Timing Role: High-reliability circular buffer retaining last 30 seconds of sensor fusion data with instant write commit on trigger. Use Value: Guarantees zero-byte loss during sudden power drop-critical for regulatory incident reconstruction where flash-based loggers may truncate final frames. |
| Electric Power Steering (EPS) Calibration Storage | Body Control Module (BCM) Configuration Backup |
Use Scenario: Storing torque-sensor offset compensation tables updated during factory calibration and field service. IC Role / Device Role / Timing Role: Secure, infrequently written nonvolatile storage holding safety-critical alignment parameters with tamper-resistant write lock. Use Value: Prevents unauthorized or erroneous rewrites via hardware WP pin and BP bits-meets ISO 26262 ASIL-B data integrity requirements. | Use Scenario: Preserving user preferences (window positions, mirror angles, lighting profiles) across battery disconnects. IC Role / Device Role / Timing Role: Low-power, high-endurance memory retaining settings through 15+ year vehicle lifetime with daily updates. Use Value: Achieves >100,000 lifetime writes per setting-exceeds EEPROM endurance by 10 million×, eliminating wear-out failure modes in consumer-facing 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 |
|---|---|---|---|
| AT25DF021A-SSH-T | 2-Mbit SPI flash with 100k write cycles, 8 ms page program time, no built-in write protection bits | Requires external polling and wear leveling; unsuitable for >100 Hz write rates or mission-critical logging | Select only if cost sensitivity outweighs write latency and endurance requirements |
| BR25H256FJ-WE2 | 256-Kbit SPI EEPROM with 1M write cycles, 5 ms byte-write time, integrated write protect register | Limited density restricts log depth; slower writes increase risk of data loss during power fail | Acceptable for low-frequency configuration storage but not real-time sensor buffering |
Compared with AT25DF021A-SSH-T and BR25H256FJ-WE2, the CY15B102Q-SXET uniquely delivers simultaneous high density, bus-speed writes, and automotive-grade reliability-making it the only viable choice for applications demanding both rapid update frequency and long-term data integrity without firmware complexity.
Availability
CY15B102Q-SXET is available at Aetrix Electronics and suitable for engine control units, ADAS event recorders, electric power steering calibration systems, and body control module configuration backup requiring stable component supply across extended automotive production lifecycles.
Supply support for CY15B102Q-SXET 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability semiconductor solutions for automotive, industrial, and IoT applications, with expertise in nonvolatile memory and programmable systems.
The CY15B102Q belongs to Cypress's automotive F-RAM product line, engineered specifically to replace serial flash and EEPROM in safety-critical, high-write-frequency automotive subsystems where latency, endurance, and temperature resilience are mandatory.
FAQ
Is CY15B102Q-SXET pin-compatible with standard 8-pin SOIC serial flash devices?
Yes-CY15B102Q-SXET uses identical SOIC-8 pinout (CS, SO, WP, VSS, VDD, SI, SCK, HOLD) and supports same SPI opcodes as common 2-Mbit serial flash, enabling hardware drop-in replacement without PCB redesign. However, its NoDelay™ write behavior eliminates need for status polling code previously required for flash.
Does CY15B102Q-SXET require special initialization or firmware changes when replacing EEPROM?
Minimal changes are needed: remove EEPROM-specific write-delay loops and status-read polling. The device responds to standard SPI opcodes (0x02 write, 0x03 read, 0x05 RDSR), but supports faster continuous reads and immediate write commits. WP and HOLD pins behave identically, preserving existing hardware protection schemes.
What is the significance of AEC-Q100 Grade 1 qualification for CY15B102Q-SXET?
AEC-Q100 Grade 1 certification confirms operation from –40 °C to +125 °C ambient, including full functionality during thermal cycling, vibration, and humidity stress tests. This validates suitability for under-hood locations such as transmission control modules and brake-by-wire ECUs-not just cabin-mounted infotainment systems.
Can CY15B102Q-SXET be used in SPI multi-drop configurations with other slaves?
Yes-CY15B102Q-SXET operates as a standard SPI slave with independent CS pin. Multiple units can share SI, SO, and SCK lines when each has dedicated CS routing. No arbitration or address decoding is required, and HOLD/WP pins remain locally controlled per device to prevent cross-talk during suspend or protect operations.
CY15B102Q-SXET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- F-RAM™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 25 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY15B102Q-SXET FAQ
1.How can I place an order for CY15B102Q-SXET through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B102Q-SXET 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 CY15B102Q-SXET reliable?
The price and inventory of CY15B102Q-SXET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B102Q-SXET is usually 5 days.
3.What payment methods are accepted for CY15B102Q-SXET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B102Q-SXET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B102Q-SXET?
CY15B102Q-SXET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B102Q-SXET 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 CY15B102Q-SXET?
For technical support, including CY15B102Q-SXET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B102Q-SXET requirements.
6.How does Aetrix verify that CY15B102Q-SXET is sourced from the original manufacturer or authorized distributors?
All CY15B102Q-SXET 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 CY15B102Q-SXET meets industry standards.
7.What is the process for return or replacement of CY15B102Q-SXET?
All CY15B102Q-SXET units undergo pre-shipment inspection (PSI). If there is an issue with CY15B102Q-SXET, 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 CY15B102Q-SXET part is unused and in its original packaging.
Return procedure for CY15B102Q-SXET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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