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Infineon Technologies CY14ME064J2-SXQT
- Part No.:
- CY14ME064J2-SXQT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY14ME064J2-SXQT.pdf
- Description:
- IC NVSRAM 64KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,335
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Product details
Overview
CY14ME064J2-SXQT from Infineon Technologies (formerly Cypress) is a 64-Kbit serial I²C nonvolatile SRAM with QuantumTrap technology, organized as 8 K × 8, operating from 4.5 V to 5.5 V over –40 °C to +105 °C, featuring AutoStore on power-down, Power-Up RECALL, and 3.4 MHz Fast-mode Plus I²C interface - deployed in industrial control data logging where deterministic nonvolatile write-back during brownout is critical.
For engineers reviewing the CY14ME064J2-SXQT datasheet, CY14ME064J2-SXQT pinout, CY14ME064J2-SXQT application, or CY14ME064J2-SXQT equivalent, key selection criteria include guaranteed STORE/RECALL reliability at 105 °C, hardware write protection via WP pin, I²C slave address flexibility (A1/A2), VCAP capacitor support for autonomous power-loss handling, and RoHS-compliant 8-pin SOIC packaging.
Technical Context
This nvSRAM integrates volatile SRAM and nonvolatile QuantumTrap storage per cell, enabling seamless bi-directional data transfer: STORE copies SRAM contents to nonvolatile elements on power loss (via VCAP-supplied energy) or via Software STORE command; RECALL restores data to SRAM on power-up or via Software RECALL. No external backup battery is required.
The device implements full I²C protocol compliance including START/STOP, ACK/NACK, 7-bit addressing, and multi-master support, with selectable speeds up to 3.4 MHz (Hs-mode), plus dedicated control registers for serial number, device ID, sleep mode, and block-level software write protection (1/4, 1/2, or full array).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 64 Kbit (8 K × 8) - supports byte- or burst-accessed data buffers without external address latching |
| I²C speed modes | 100 kHz / 400 kHz / 1 MHz / 3.4 MHz - enables real-time logging in high-throughput sensor hubs |
| Data retention | 10 years at 105 °C - validated for extended-life deployment in sealed industrial enclosures |
| STORE endurance | 200 K cycles at 105 °C - ensures reliability across frequent power-cycle environments like smart meters |
| Operating voltage | 4.5 V to 5.5 V - compatible with legacy 5 V microcontroller I/O domains and level-shift-free interfacing |
| Supply current | 20 µA in sleep mode - reduces quiescent power in always-on monitoring nodes |
| Temperature range | –40 °C to +105 °C - qualified for under-hood automotive ECUs and factory-floor PLC modules |
Pinout & Package
8-pin Small Outline Integrated Circuit (SOIC) package with standard JEDEC MS-012AC footprint, surface-mount compatible, RoHS-compliant, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Primary 4.5–5.5 V rail; powers SRAM core, I²C logic, and QuantumTrap control circuitry |
| VSS | Ground reference | System return path; must be low-impedance to ensure STORE timing integrity during power collapse |
| SDA | I²C bidirectional data | Open-drain I/O requiring external pull-up; handles all memory reads/writes, register access, and commands |
| SCL | I²C clock input | Master-generated clock up to 3.4 MHz; synchronizes all data transfers and command execution |
| WP | Hardware write protect | Active-low enable; disables all STORE, write, and configuration operations when asserted |
| A1, A2 | I²C slave address inputs | Set 7-bit slave address bits A1/A0 (with fixed prefix); allow up to four devices on same bus |
| VCAP | AutoStore capacitor connection | Connects external capacitor (typically 0.47–4.7 µF) to sustain STORE operation during VCC dropout |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap nonvolatile storage | Per-cell embedded nonvolatile element enabling infinite SRAM read/write cycles with 200 K STORE cycles at 105 °C |
| AutoStore on power loss | Automatic STORE triggered by VCC decay below threshold, using energy from VCAP capacitor - no firmware intervention required |
| Software-controlled STORE/RECALL | I²C-command-initiated STORE/RECALL allows precise control over data persistence timing in deterministic real-time systems |
| Block-level write protection | Configurable 1/4, 1/2, or full-array lock via I²C registers - prevents accidental overwrite of calibration or firmware tables |
| Integrated serial number | 8-byte factory-programmed unique identifier accessible via I²C - supports device traceability and secure boot binding |
Applications
| Industrial Data Logger | Automotive ECU Event Recorder |
|---|---|
Use Scenario: Continuous capture of sensor readings (temperature, pressure, vibration) during machine runtime, with guaranteed preservation on unexpected shutdown. IC Role / Device Role / Timing Role: Nonvolatile buffer storing last 8 KB of operational history; performs autonomous STORE within 10 ms of VCC drop below 4.25 V. Use Value: Eliminates need for supercapacitor-based backup or external FRAM, reducing BOM count and board area by 30%. | Use Scenario: Recording fault codes and vehicle state snapshots before ignition-off in engine control units exposed to under-hood thermal stress. IC Role / Device Role / Timing Role: High-reliability event memory retaining data for ≥10 years at 105 °C; RECALL restores context on next power-up for diagnostic analysis. Use Value: Meets ISO 16750-4 thermal endurance requirements without derating or thermal shielding. |
| Smart Energy Meter | Programmable Logic Controller (PLC) |
Use Scenario: Storing tariff schedules, consumption counters, and tamper logs in utility-grade electricity meters subject to frequent grid interruptions. IC Role / Device Role / Timing Role: Dual-role memory: volatile SRAM for active metering calculations; nonvolatile QuantumTrap for secure, uncorrupted billing data archiving. Use Value: Achieves ANSI C12.1 compliance for data integrity during >100,000 annual power cycles. | Use Scenario: Holding ladder logic state, I/O mapping, and configuration parameters in DIN-rail mounted PLCs operating in factory automation environments. IC Role / Device Role / Timing Role: Configuration nonvolatile store with hardware WP pin enabling field-service-safe firmware updates without memory corruption risk. Use Value: Enables zero-downtime parameter reload after power restoration, meeting IEC 61131-3 runtime continuity expectations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FM24V06-G | 64 Kbit F-RAM; 3.3 V only; no VCAP requirement; 10¹⁴ read/write endurance | Lacks AutoStore on power loss; requires system-level power-fail detection and controlled write sequence | Select when ultra-high endurance and low-power writes dominate over autonomous power-loss resilience |
| AT24C512N-10PU-2.7 | 512 Kbit I²C EEPROM; 2.7–5.5 V; 100 K write cycles; 40 µs write time per byte | No SRAM-like random access; byte-write latency limits real-time buffering; no simultaneous read/write | Select when cost-per-bit is primary and write frequency is low (e.g., infrequent configuration storage) |
Compared with FM24V06-G and AT24C512N-10PU-2.7, CY14ME064J2-SXQT uniquely delivers true SRAM-speed random access with guaranteed atomic STORE/RECALL on power transition - essential where deterministic data capture during brownout cannot be delegated to host firmware.
Availability
CY14ME064J2-SXQT is available at Aetrix Electronics and suitable for industrial data loggers, automotive ECU event recorders, and smart energy meters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for CY14ME064J2-SXQT 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, delivering power management, sensing, connectivity, and security solutions for industrial, automotive, and IoT applications.
CY14ME064J2-SXQT belongs to Infineon's nvSRAM product line, engineered specifically for systems demanding instantaneous, battery-free nonvolatile data retention during power interruption - targeting mission-critical edge nodes where firmware-driven backup is unsafe or impractical.
FAQ
What is the role of the VCAP pin, and what capacitor value is recommended?
The VCAP pin supplies hold-up energy to complete the AutoStore operation when VCC drops below threshold. A 0.47 µF to 4.7 µF tantalum or ceramic capacitor is recommended; 1 µF achieves ~10 ms STORE window at 5 V. VCAP must never connect to ground and must be decoupled close to the pin to minimize ESL.
How does hardware write protection via the WP pin interact with software block protection?
WP pin assertion (low) overrides all software write protection settings and disables all STORE, RECALL, memory writes, and register modifications. When WP is high, software-configured block protection (1/4, 1/2, or full array) remains active and enforceable via I²C commands.
Can CY14ME064J2-SXQT operate on a 3.3 V I²C bus?
No - CY14ME064J2-SXQT requires VCC = 4.5 V to 5.5 V and is not 3.3 V tolerant. Its I²C pins are designed for 5 V logic levels; direct connection to 3.3 V masters requires bidirectional level translation, and VCC must remain within specified range for QuantumTrap operation and data retention guarantees.
Is the 8-byte serial number one-time programmable or reprogrammable?
The 8-byte serial number is factory-programmed and permanently locked; it cannot be modified after shipment. It is readable via I²C at fixed address offset 0x00 in the control register space and provides immutable device identification for traceability and anti-counterfeiting.
CY14ME064J2-SXQT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 3.4 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY14ME064J2-SXQT FAQ
1.How can I place an order for CY14ME064J2-SXQT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14ME064J2-SXQT 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 CY14ME064J2-SXQT reliable?
The price and inventory of CY14ME064J2-SXQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14ME064J2-SXQT is usually 5 days.
3.What payment methods are accepted for CY14ME064J2-SXQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14ME064J2-SXQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14ME064J2-SXQT?
CY14ME064J2-SXQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14ME064J2-SXQT 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 CY14ME064J2-SXQT?
For technical support, including CY14ME064J2-SXQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14ME064J2-SXQT requirements.
6.How does Aetrix verify that CY14ME064J2-SXQT is sourced from the original manufacturer or authorized distributors?
All CY14ME064J2-SXQT 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 CY14ME064J2-SXQT meets industry standards.
7.What is the process for return or replacement of CY14ME064J2-SXQT?
All CY14ME064J2-SXQT units undergo pre-shipment inspection (PSI). If there is an issue with CY14ME064J2-SXQT, 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 CY14ME064J2-SXQT part is unused and in its original packaging.
Return procedure for CY14ME064J2-SXQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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