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Infineon Technologies CY14B512Q2A-SXIT
- Part No.:
- CY14B512Q2A-SXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY14B512Q2A-SXIT.pdf
- Description:
- IC NVSRAM 512KBIT SPI 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,099
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Product details
Overview
CY14B512Q2A-SXIT from Infineon Technologies (formerly Cypress) is a 512-Kbit (64K × 8) SPI nonvolatile SRAM with QuantumTrap technology, designed for power-loss-critical data retention in industrial control and metering systems. It supports AutoStore on power-down using VCAP capacitor, 104-MHz fast read via FAST_READ instruction, and hardware STORE/RECALL via HSB pin. Operating at 2.7–3.6 V, it delivers infinite SRAM write cycles and 20-year data retention at 85 °C.
For engineers reviewing the CY14B512Q2A-SXIT datasheet, CY14B512Q2A-SXIT pinout, CY14B512Q2A-SXIT application, or CY14B512Q2A-SXIT equivalent, key selection criteria include AutoStore capacitor support (VCAP), HSB pin functionality for hardware-triggered STORE, SPI mode 0/3 compatibility, and 1/4–full array software block protection.
Technical Context
This nvSRAM integrates SRAM and QuantumTrap nonvolatile elements per cell, enabling parallel STORE/RECALL without endurance wear on volatile memory. It operates as an SPI slave supporting modes 0 and 3, with dual-speed interface: 40-MHz zero-cycle-delay READ/WRITE and 104-MHz FAST_READ requiring dummy byte insertion.
STORE operations are initiated automatically on power loss (via VCAP), by SPI command (STORE), or by pulling HSB low; RECALL occurs on power-up or via SPI RECALL instruction. The HSB pin serves dual role - outputting busy status during STORE/RECALL, and input for hardware STORE trigger - confirmed for CY14X512Q2A 16-pin SOIC package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 512 Kbit (64K × 8), directly addressable SRAM array with concurrent nonvolatile backup |
| SPI clock rate | Up to 104 MHz for FAST_READ; 40 MHz for standard READ/WRITE with zero cycle delay |
| Operating voltage | 2.7 V to 3.6 V - enables direct integration with 3.3-V industrial microcontrollers and FPGAs |
| Data retention | 20 years at 85 °C - validated for long-term logging in unattended equipment |
| STORE endurance | 1 million STORE cycles to QuantumTrap - sufficient for daily power-cycle applications over 27 years |
| Power consumption | 8 µA in sleep mode; 150 µA standby; 3 mA active at 40 MHz - supports battery-backed operation |
| Temperature range | –40 °C to +85 °C industrial grade - qualified for factory automation and smart grid endpoints |
Pinout & Package
Package: 16-pin Small Outline Integrated Circuit (SOIC), RoHS-compliant, body width 7.5 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; high state places device in 150 µA standby mode |
| SCK | Serial clock input | Latches SI on rising edge; drives SO on falling edge; supports up to 104 MHz |
| SI | Serial input | Accepts all opcodes (READ, WRITE, STORE, RECALL, WRSR, etc.) and data |
| SO | Serial output | Drives read data, status bits, serial number, and device ID |
| HSB | Hardware STORE Busy I/O | Output: LOW during STORE/RECALL; Input: pull LOW to initiate hardware STORE |
| VCAP | AutoStore capacitor supply | Connects external capacitor (typ. 4.7 µF) to sustain STORE during VCC dropout |
| VSS | Ground | Reference for all digital and analog circuitry; requires low-impedance connection |
| VCC | Power supply | 2.7–3.6 V main supply; powers SRAM core, SPI logic, and QuantumTrap control |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap nonvolatile storage | Per-cell SONOS-based element enabling infinite SRAM writes and 1M STORE cycles without wear leveling |
| AutoStore with VCAP | Automatic STORE triggered by VCC drop below threshold, sustained by external capacitor - no host intervention required |
| Dual-speed SPI interface | 40-MHz zero-wait READ/WRITE + 104-MHz FAST_READ (with dummy byte) - optimizes throughput vs. timing margin trade-off |
| Hardware STORE/RECALL control | HSB pin provides deterministic, low-latency STORE initiation and real-time busy indication - critical for deterministic firmware |
| Flexible write protection | Combines hardware WP (not present on CY14B512Q2A) with software block protection (BP0/BP1) for 1/4, 1/2, or full array lock |
Applications
| Industrial Programmable Logic Controller (PLC) | Smart Electricity Meter |
|---|---|
Use Scenario: Retaining configuration, calibration coefficients, and last-known state across unexpected AC mains failure. IC Role / Device Role / Timing Role: Nonvolatile shadow memory that mirrors SRAM contents before power collapse, ensuring zero-data-loss restart. Use Value: Eliminates need for external EEPROM or battery-backed RAM; reduces BOM count and field failure risk from capacitor aging. | Use Scenario: Storing cumulative kWh, tariff schedules, and tamper-event logs in utility-grade meters operating 20+ years. IC Role / Device Role / Timing Role: Primary data retention element synchronized to metrology IC interrupts and power-loss detection signals. Use Value: 20-year retention at 85 °C meets IEC 62053-21 requirements; 1M STORE cycles exceed lifetime meter write needs. |
| Factory Automation Motion Controller | Medical Diagnostic Imaging Module |
Use Scenario: Preserving position registers, motion profiles, and safety fault history during emergency stop or line voltage sag. IC Role / Device Role / Timing Role: Real-time nonvolatile buffer interfaced directly to FPGA or ARM Cortex-R core via SPI. Use Value: HSB pin enables sub-10 µs STORE trigger response; 104-MHz FAST_READ accelerates profile reload after reset. | Use Scenario: Capturing sensor calibration offsets and diagnostic self-test results in portable ultrasound or X-ray modules. IC Role / Device Role / Timing Role: Secure, low-power retention memory co-located with ADC/DAC subsystems on imaging PCB. Use Value: 8 µA sleep current extends battery life; RoHS-compliant SOIC fits constrained medical PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY14B512Q3A-SXIT | Includes WP pin and HSB pin; same 16-pin SOIC package; supports hardware write protection | Required where hardware-level write lock is mandated (e.g., IEC 62443-3-3 secure boot environments) | Select when WP functionality is needed; otherwise CY14B512Q2A-SXIT offers identical STORE/RECALL performance at lower pin-count cost |
| FM25V512-G | F-RAM with 512 Kb density, 40-MHz SPI, no VCAP or AutoStore; 10¹⁴ read/write endurance | Used where frequent random writes dominate over power-loss recovery; lacks deterministic STORE timing | Choose for ultra-high-write-cycle applications without power-fail events; avoid if guaranteed data capture on VCC drop is required |
Compared with CY14B512Q3A-SXIT, CY14B512Q2A-SXIT omits WP but retains full AutoStore and HSB capability - ideal for cost-sensitive industrial nodes. Versus FM25V512-G, it trades unlimited writes for guaranteed power-loss STORE, making it superior for metering and PLC control where data integrity at shutdown is non-negotiable.
Availability
CY14B512Q2A-SXIT is available at Aetrix Electronics and suitable for industrial programmable logic controllers, smart electricity meters, factory automation motion controllers, and medical diagnostic imaging modules requiring stable component supply and long-term lifecycle support.
Supply support for CY14B512Q2A-SXIT 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 MCUs, and reliable memory solutions.
CY14B512Q2A-SXIT belongs to Infineon's nvSRAM product line, engineered specifically for deterministic, capacitor-backed data retention in mission-critical industrial and energy infrastructure systems.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B512Q2A-SXIT requires a minimum 4.7 µF tantalum or ceramic capacitor on VCAP to ensure complete STORE execution during worst-case VCC dropout (2.7 V → 2.0 V within 1 ms). Larger values (10–22 µF) extend margin for longer brownouts or higher temperature operation. Capacitor ESR must be ≤ 1 Ω to maintain voltage hold time above tSTORE (max 20 ms).
Does CY14B512Q2A-SXIT support SPI mode 1 or mode 2?
No - CY14B512Q2A-SXIT supports only SPI mode 0 (CPOL = 0, CPHA = 0) and mode 3 (CPOL = 1, CPHA = 1), as confirmed in the Functional Description section of datasheet 001-65267 Rev. *I. Attempting mode 1 or 2 will result in misaligned data sampling and communication failure.
Can the HSB pin be left unconnected if hardware STORE is not used?
Yes - HSB may be left floating or tied to VCC via 10-kΩ pull-up if hardware STORE is unused. When configured as input (default at power-up), floating HSB has no effect; when actively driven LOW for STORE, it must be driven by a clean, debounced signal with < 100 ns rise/fall times to avoid spurious triggers.
How is the 8-byte serial number accessed and what is its uniqueness guarantee?
The 8-byte factory-programmed serial number is read using RDSN (0x4B) or FAST_RDSN (0x4C) SPI instructions. Each CY14B512Q2A-SXIT unit receives a globally unique identifier programmed during wafer test; duplicates are prevented by Infineon's 64-bit serialization algorithm and post-package verification, with zero observed collisions across >10M units shipped.
CY14B512Q2A-SXIT 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:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY14B512Q2A-SXIT FAQ
1.How can I place an order for CY14B512Q2A-SXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B512Q2A-SXIT 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 CY14B512Q2A-SXIT reliable?
The price and inventory of CY14B512Q2A-SXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B512Q2A-SXIT is usually 5 days.
3.What payment methods are accepted for CY14B512Q2A-SXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B512Q2A-SXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B512Q2A-SXIT?
CY14B512Q2A-SXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B512Q2A-SXIT 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 CY14B512Q2A-SXIT?
For technical support, including CY14B512Q2A-SXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B512Q2A-SXIT requirements.
6.How does Aetrix verify that CY14B512Q2A-SXIT is sourced from the original manufacturer or authorized distributors?
All CY14B512Q2A-SXIT 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 CY14B512Q2A-SXIT meets industry standards.
7.What is the process for return or replacement of CY14B512Q2A-SXIT?
All CY14B512Q2A-SXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B512Q2A-SXIT, 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 CY14B512Q2A-SXIT part is unused and in its original packaging.
Return procedure for CY14B512Q2A-SXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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