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Infineon Technologies CY15B004J-SXE
- Part No.:
- CY15B004J-SXE
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY15B004J-SXE.pdf
- Description:
- IC FRAM 4KBIT I2C 3.4MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:339
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Product details
Overview
CY15B004J-SXE from Infineon Technologies (formerly Cypress) is a 4-Kbit (512 × 8) serial I²C automotive-grade ferroelectric RAM (F-RAM) with NoDelay™ write capability, 10¹³ read/write endurance, and guaranteed operation from –40 °C to +125 °C. It serves as a hardware-compatible drop-in replacement for I²C EEPROM in nonvolatile data logging and control systems requiring rapid, low-power writes.
For engineers reviewing the CY15B004J-SXE datasheet, CY15B004J-SXE pinout, CY15B004J-SXE application, or CY15B004J-SXE equivalent, key selection criteria include its zero-write-delay behavior, AEC-Q100 Grade 1 qualification, 1-MHz I²C interface, 3.0–3.6 V supply range, and SOIC-8 packaging - all critical for automotive sensor nodes and industrial controllers demanding high-reliability, frequent nonvolatile writes.
Technical Context
The CY15B004J-SXE implements a true nonvolatile memory architecture using ferroelectric capacitor-based cells, enabling RAM-like random access with EEPROM-equivalent data retention. Its I²C slave interface supports standard 100 kHz, 400 kHz, and 1 MHz modes, with full compatibility to legacy timing requirements and no internal write cycle delays.
It features a 9-bit address space (8-bit word + 1-bit page select), device-select pins A2/A1 for multi-device bus configuration, and hardware write protection via the WP pin. The absence of charge-pump circuitry eliminates elevated voltage generation during writes, reducing power consumption and improving reliability over EEPROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (512 × 8) - provides 512 bytes of byte-addressable nonvolatile storage |
| Interface | I²C (2-wire serial) - enables simple, low-pin-count integration with microcontrollers and SoCs |
| Max Clock Frequency | 1 MHz - supports high-throughput data logging without protocol bottlenecks |
| Write Endurance | 10¹³ cycles - allows continuous logging at 100 Hz for >3,000 years without wear-out |
| Data Retention | 121 years at +85 °C - ensures long-term integrity in automotive under-hood environments |
| Operating Voltage | 3.0 V to 3.6 V - matches common automotive MCU I/O rail voltages |
| Temperature Range | –40 °C to +125 °C (Automotive-E) - qualified per AEC-Q100 Grade 1 for engine control units |
Pinout & Package
Package: 8-pin Small Outline Integrated Circuit (SOIC), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A2 | Device Address Input | Selects one of up to four identical devices on same I²C bus; internally pulled down |
| SDA | I²C Bidirectional Data Line | Open-drain, Schmitt-triggered input; requires external pull-up; supports wire-AND topology |
| SCL | I²C Clock Input | Master-generated clock; rising edge samples data, falling edge outputs data; Schmitt-triggered |
| WP | Hardware Write Protect | Active-high; ties entire memory map to read-only when connected to VDD |
| VSS | Ground Reference | System ground connection; required for stable logic and memory operation |
| VDD | Power Supply | 3.0–3.6 V supply; powers core logic and F-RAM array; no internal regulation |
| NC | No Connect | Internally unconnected die pad; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| NoDelay™ Writes | Immediate byte-level write completion at I²C bus speed - eliminates polling and reduces firmware overhead |
| Ferroelectric Memory Cell | Nonvolatile storage without charge pumps - enables ultra-low write power (120 µA active @100 kHz) |
| AEC-Q100 Grade 1 Compliance | Validated for automotive applications requiring operation up to +125 °C ambient |
| I²C Timing Compatibility | Supports legacy 100 kHz and 400 kHz timings - enables seamless EEPROM replacement without firmware changes |
| Hardware Write Protection | Pin-controlled global lock - prevents accidental overwrites during system startup or fault conditions |
Applications
| Automotive Sensor Data Logging | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Continuous recording of wheel speed, temperature, and pressure sensor values in ADAS ECUs. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory capturing time-stamped telemetry at ≥100 Hz without data loss. Use Value: 10¹³ endurance ensures >30 years of logging at 100 Hz; 121-year retention preserves crash data across vehicle lifetime. | Use Scenario: Storing runtime-calibrated PID parameters and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Parameter backup memory updated dynamically during commissioning and field adjustment. Use Value: NoDelay™ writes enable real-time parameter persistence without interrupting control loop execution. |
| Telematics Event Buffering | Medical Diagnostic Device Settings |
Use Scenario: Capturing GPS position, acceleration, and CAN bus event timestamps during vehicle collision events. IC Role / Device Role / Timing Role: Crash-data buffer that survives power loss within 10 ms of impact detection. Use Value: Sub-millisecond write latency and zero delay guarantee complete pre-crash data capture even during brownout. | Use Scenario: Preserving user-selected calibration offsets, language preferences, and safety limits in portable diagnostic analyzers. IC Role / Device Role / Timing Role: Patient-safe configuration store retaining settings through battery swaps and sterilization cycles. Use Value: AEC-Q100 Grade 1 thermal rating ensures reliability during autoclave exposure and extended shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C04C-SSHM-T (Microchip) | 4-Kbit I²C EEPROM; 1 million write cycles; 100-year retention at +25 °C only | Lacks AEC-Q100 Grade 1 qualification; not rated beyond +85 °C | Lower cost where extended temperature and endurance are not required |
| MB85RC04V | 4-Kbit I²C F-RAM; same endurance and retention; operates at 2.7–3.6 V | Wider VDD range but lacks AEC-Q100 certification; industrial temp only (–40 °C to +85 °C) | Drop-in electrical replacement where automotive qualification is not mandated |
Compared with AT24C04C-SSHM-T and MB85RC04V, the CY15B004J-SXE uniquely combines AEC-Q100 Grade 1 qualification, 121-year retention at +85 °C, and 10¹³ endurance - making it the only option validated for mission-critical automotive black-box logging and engine control parameter storage.
Availability
CY15B004J-SXE is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC configuration storage, and medical diagnostic device settings retention requiring stable component supply across extended product lifecycles.
Supply support for CY15B004J-SXE 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control solutions.
The CY15B004J-SXE belongs to Infineon's automotive-qualified F-RAM portfolio, engineered specifically for high-endurance, zero-delay nonvolatile data capture in harsh-temperature embedded systems.
FAQ
Is CY15B004J-SXE pin-compatible with standard I²C EEPROMs like the 24C04?
Yes - CY15B004J-SXE uses an 8-pin SOIC package with identical pinout and I²C protocol framing as industry-standard 4-Kbit EEPROMs. A2/A1 address pins, SDA, SCL, WP, VDD, and VSS align functionally and physically, enabling direct PCB-level replacement without layout changes.
Does CY15B004J-SXE require special firmware changes when replacing an EEPROM?
No - it supports standard I²C START/STOP, ACK/NACK, and addressing sequences including legacy 100 kHz and 400 kHz timings. Firmware retains existing EEPROM drivers; only write polling loops can be removed due to NoDelay™ operation.
What is the significance of "Automotive-E" temperature grading?
Automotive-E denotes operation from –40 °C to +125 °C ambient, validated per AEC-Q100 Grade 1 stress testing. This ensures reliable performance in under-hood ECUs, transmission control modules, and ADAS sensors where junction temperatures exceed +105 °C.
How does the WP pin function during power-up sequences?
The WP pin is internally pulled down, so memory is write-enabled by default at power-on. To prevent unintended writes during voltage ramp-up, tie WP to VDD only after VDD stabilizes above 2.7 V - or use a reset supervisor to assert WP until system initialization completes.
CY15B004J-SXE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- F-RAM™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 4Kbit
- Memory Organization:
- 512 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 3.4 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY15B004J-SXE FAQ
1.How can I place an order for CY15B004J-SXE through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B004J-SXE 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 CY15B004J-SXE reliable?
The price and inventory of CY15B004J-SXE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B004J-SXE is usually 5 days.
3.What payment methods are accepted for CY15B004J-SXE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B004J-SXE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B004J-SXE?
CY15B004J-SXE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B004J-SXE 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 CY15B004J-SXE?
For technical support, including CY15B004J-SXE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B004J-SXE requirements.
6.How does Aetrix verify that CY15B004J-SXE is sourced from the original manufacturer or authorized distributors?
All CY15B004J-SXE 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 CY15B004J-SXE meets industry standards.
7.What is the process for return or replacement of CY15B004J-SXE?
All CY15B004J-SXE units undergo pre-shipment inspection (PSI). If there is an issue with CY15B004J-SXE, 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 CY15B004J-SXE part is unused and in its original packaging.
Return procedure for CY15B004J-SXE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15B004J-SXE Tags
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