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Infineon Technologies CY15B016J-SXA
- Part No.:
- CY15B016J-SXA
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY15B016J-SXA.pdf
- Description:
- IC FRAM 16KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,535
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Product details
Overview
CY15B016J-SXA from Cypress Semiconductor is a 16-Kbit (2K × 8) automotive-grade serial F-RAM with I²C interface, operating from 2.7 V to 3.65 V over –40 °C to +85 °C. It delivers NoDelay™ writes, 10¹⁴ read/write endurance, and 151-year data retention-enabling real-time nonvolatile logging in safety-critical automotive control units.
For engineers reviewing the CY15B016J-SXA datasheet, CY15B016J-SXA pinout, CY15B016J-SXA application, or CY15B016J-SXA equivalent, key selection criteria include I²C bus-speed write capability, zero-write-polling latency, automotive-A temperature compliance, and hardware-compatible replacement for legacy serial EEPROM in ECU firmware storage and sensor calibration memory.
Technical Context
The CY15B016J-SXA implements a ferroelectric memory array organized as 2,048 × 8 bits, accessed via standard two-wire I²C protocol with slave address 0xA0/0xA1 (R/W bit dependent). It uses no internal charge pump-eliminating write delay and reducing power versus EEPROM.
Its 11-bit addressing combines 3-bit page select (bits 10:8) and 8-bit word address (bits 7:0), supporting sequential and random access without address retransmission during multi-byte reads. The device operates as a pure slave with no master arbitration or clock stretching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2,048 × 8), enabling compact firmware parameter storage without external address latches |
| I²C Speed | Up to 1 MHz-supports high-throughput configuration updates in <16 ms for full memory write |
| Write Endurance | 10¹⁴ cycles-supports >100 million times more writes than EEPROM, critical for cyclic telemetry logging |
| Data Retention | 151 years at +85 °C-guarantees calibration data integrity across full vehicle lifecycle without refresh |
| Supply Voltage | 2.7 V to 3.65 V-matches automotive 3.3 V rail with margin for cold-crank brownout |
| Operating Temp | –40 °C to +85 °C (Automotive-A)-qualified for engine bay and body control module mounting |
| Standby Current | 3 µA typical-minimizes battery drain in always-on vehicle networks (e.g., CAN wake-up circuits) |
Pinout & Package
8-pin SOIC (Small Outline Integrated Circuit) package with gull-wing leads, RoHS-compliant, JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: WP | Write Protect input | Hardware-level lock: tied to VDD disables all writes; tied to GND enables full memory access |
| 2: SCL | I²C clock input | Master-generated synchronous timing signal; no internal clock generation or stretching |
| 3: SDA | I²C bidirectional data line | Open-drain with Schmitt trigger input and slope-controlled output-ensures noise immunity on shared bus |
| 4: NC | No connect | Die pad unconnected; must remain floating or grounded per layout guidelines |
| 5: VSS | Ground reference | System ground return path; requires low-inductance connection to minimize I²C noise coupling |
| 6: NC | No connect | Die pad unconnected; electrically isolated from internal circuitry |
| 7: VDD | Power supply input | Primary 2.7–3.65 V supply; decoupling capacitor required within 5 mm of pin |
| 8: NC | No connect | Die pad unconnected; no routing or thermal pad connection recommended |
Key Features
| Feature | Design Value |
|---|---|
| NoDelay™ Write | Byte writes complete within one I²C clock cycle-no polling, no timeout handling, deterministic latency ≤10 µs |
| Ferroelectric Core | Nonvolatile storage without charge pump or high-voltage programming-enables true RAM-like write behavior |
| I²C Drop-in Compatibility | Pin- and protocol-matched to 2K×8 EEPROMs (e.g., AT24C16), requiring zero firmware or schematic changes |
| Low-Power Operation | 100 µA active current at 100 kHz-reduces MCU subsystem power budget by >90% vs. EEPROM write bursts |
| Automotive Qualification | AEC-Q100 Grade 2 qualified-tested for thermal cycling, humidity, and vibration per automotive reliability standards |
Applications
| Engine Control Unit (ECU) Calibration Storage | Advanced Driver Assistance Systems (ADAS) Event Logging |
|---|---|
Use Scenario: Storing real-time fuel trim, ignition timing, and OBD-II fault codes during engine operation. IC Role / Device Role / Timing Role: Nonvolatile parameter register-updated every 100 ms during closed-loop control without interrupting CPU execution. Use Value: Eliminates EEPROM write stalls that cause missed sensor samples; supports 100+ concurrent log entries per second. | Use Scenario: Capturing pre-crash sensor fusion data (radar, camera, IMU) triggered by collision detection logic. IC Role / Device Role / Timing Role: Crash-event buffer-writes timestamped frames at 200 Hz until trigger, then holds data through power loss. Use Value: Guarantees capture of ≥2 seconds of pre-event data with zero risk of write failure during voltage sag. |
| Body Control Module (BCM) User Preference Memory | Electric Power Steering (EPS) Motor Calibration |
Use Scenario: Saving seat position, mirror angle, and climate settings across ignition cycles. IC Role / Device Role / Timing Role: Persistent configuration store-written on user button press, read at power-up. Use Value: Enables instant recall (<50 ms) with 10¹⁴-cycle durability-survives 100+ setting changes daily for 27 years. | Use Scenario: Storing torque offset compensation values derived during EPS motor learning routines. IC Role / Device Role / Timing Role: Safety-critical calibration vault-written once per vehicle lifetime during dealer service. Use Value: Ensures ASIL-B compliant data integrity with 151-year retention, eliminating periodic recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T (Microchip) | EEPROM with 1M write cycles, 10 ms write time, 400 kHz max I²C speed | Lacks automotive-A temp rating; not AEC-Q100 qualified | Select only for cost-sensitive non-automotive designs where write frequency <100/day |
| FM24V10-G (Cypress) | 1-Mbit F-RAM, 2.7–5.5 V, 1 MHz I²C, but 8-lead TSSOP only-not SOIC pinout compatible | Higher density but incompatible footprint; requires PCB redesign | Choose when memory expansion needed and board revision is feasible |
Compared with AT24C16D-SSHM-T, CY15B016J-SXA eliminates write latency and extends endurance by 100 million×; versus FM24V10-G, it retains identical SOIC-8 footprint and automotive qualification but trades capacity for drop-in compatibility in space-constrained ECUs.
Availability
CY15B016J-SXA is available at Aetrix Electronics and suitable for engine control units, ADAS event recorders, and body control modules requiring stable component supply under automotive production schedules.
Supply support for CY15B016J-SXA 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 systems, with focus on embedded memory and microcontrollers.
The CY15B016J-SXA belongs to Cypress's automotive F-RAM product line, engineered specifically to replace EEPROM in safety-critical, high-write-frequency automotive subsystems while maintaining pin and protocol compatibility.
FAQ
Is CY15B016J-SXA pin-compatible with standard 2K×8 I²C EEPROMs?
Yes. It uses identical 8-pin SOIC packaging and matches the pinout (WP, SCL, SDA, VSS, VDD) and I²C slave address (0xA0/0xA1) of devices like AT24C16. No PCB or firmware changes are required for drop-in replacement-only ensure WP logic matches existing EEPROM usage.
Does CY15B016J-SXA require external pull-up resistors on SDA/SCL lines?
Yes. SDA and SCL are open-drain interfaces requiring external pull-up resistors to VDD. Recommended values are 2.2 kΩ for 100 kHz and 1 kΩ for 1 MHz operation, sized per bus capacitance and rise-time requirements defined in the I²C specification.
How does the WP pin function during power-up sequences?
The WP pin has an internal pull-down resistor. If left unconnected, it defaults to write-enable mode. To protect memory during power ramp-up, tie WP to VDD only after VDD stabilizes above 2.5 V-or use a reset supervisor to assert WP until system initialization completes.
Can CY15B016J-SXA operate reliably during automotive cold-crank conditions?
Yes. It functions down to 2.7 V and –40 °C, meeting ISO 16750-2 cold-crank profile requirements. Its zero-delay write architecture avoids data corruption during voltage dips where EEPROM would stall or fail-critical for logging during engine start.
CY15B016J-SXA 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:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.65V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY15B016J-SXA FAQ
1.How can I place an order for CY15B016J-SXA through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B016J-SXA 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 CY15B016J-SXA reliable?
The price and inventory of CY15B016J-SXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B016J-SXA is usually 5 days.
3.What payment methods are accepted for CY15B016J-SXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B016J-SXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B016J-SXA?
CY15B016J-SXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B016J-SXA 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 CY15B016J-SXA?
For technical support, including CY15B016J-SXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B016J-SXA requirements.
6.How does Aetrix verify that CY15B016J-SXA is sourced from the original manufacturer or authorized distributors?
All CY15B016J-SXA 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 CY15B016J-SXA meets industry standards.
7.What is the process for return or replacement of CY15B016J-SXA?
All CY15B016J-SXA units undergo pre-shipment inspection (PSI). If there is an issue with CY15B016J-SXA, 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 CY15B016J-SXA part is unused and in its original packaging.
Return procedure for CY15B016J-SXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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