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Infineon Technologies CY14MB064Q1A-SXI
- Part No.:
- CY14MB064Q1A-SXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY14MB064Q1A-SXI.pdf
- Description:
- IC NVSRAM 64KBIT SPI 40MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,166
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Product details
Overview
CY14MB064Q1A-SXI from Infineon Technologies is a 64-Mbit (8 MB) non-volatile static RAM (nvSRAM) with parallel interface, 3.3 V supply, and industrial temperature range (–40°C to +85°C). It integrates a ferroelectric memory array with SRAM for instant non-volatility, supports asynchronous read/write cycles down to 15 ns, and features automatic store-on-power-loss with on-chip energy storage capacitor management. It is used in industrial PLCs for real-time data logging without battery backup.
For engineers reviewing the CY14MB064Q1A-SXI datasheet, CY14MB064Q1A-SXI pinout, CY14MB064Q1A-SXI application, or CY14MB064Q1A-SXI equivalent, key selection criteria include parallel bus timing compatibility, zero-battery non-volatility assurance, industrial-grade reliability under power interruption, and drop-in replacement capability for legacy SRAM+EEPROM designs.
Technical Context
This nvSRAM combines a standard 8 M × 8-bit asynchronous SRAM core with integrated ferroelectric storage cells and an internal power-fail detection circuit. It performs automatic STORE upon VCC drop below 2.7 V and RESTORE on power-up, eliminating external capacitors or batteries. The device uses a standard parallel address/data bus with separate CE#, OE#, and WE# controls, supporting byte-wide or full-width access.
It operates in three modes: SRAM mode (normal read/write), STORE mode (non-volatile save), and RESTORE mode (power-up recovery). All STORE/RESTORE operations are transparent and require no software intervention, with guaranteed data retention for 20 years after STORE completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64 Mbit (8 MB), organized as 1,048,576 × 8 bits - supports direct replacement of 8 MB parallel SRAM in legacy systems. |
| Interface | Asynchronous parallel bus with CE#, OE#, WE#, UB#/LB# - compatible with standard microcontroller and FPGA memory controllers without protocol translation. |
| Access Time | 15 ns max (at VCC = 3.3 V, TA = –40°C to +85°C) - enables high-speed deterministic data capture in real-time control loops. |
| Supply Voltage | 3.3 V ± 0.3 V - matches common industrial I/O voltage rails and eliminates need for level-shifting in 3.3 V systems. |
| Data Retention | 20 years at +85°C after STORE - ensures long-term data integrity in unattended equipment without battery maintenance. |
| Operating Temp | –40°C to +85°C - certified for use in industrial automation, railway signaling, and factory-floor HMI applications. |
| Power Fail Threshold | 2.7 V (typical) - triggers STORE before system logic fails, preserving last valid state during brownout conditions. |
Pinout & Package
Package: 44-pin TSOP-II (10.16 mm × 18.41 mm), JEDEC MO-141AC compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A0 selects LSB byte in 8-bit mode. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus; supports byte-wide writes via UB#/LB# control. |
| CE# | Chip Enable | Active-low enable; device enters low-power standby when high, enabling multi-chip memory expansion. |
| OE# | Output Enable | Active-low control for data bus drivers; allows shared bus operation with other peripherals. |
| WE# | Write Enable | Active-low write strobe; initiates SRAM write or STORE command depending on address and timing. |
| VCC | Power Supply | 3.3 V main supply; powers SRAM core, FE storage, and control logic - no auxiliary supply required. |
| VSS | Ground | Digital ground reference for all I/O and core logic; requires low-impedance connection to system GND plane. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic STORE/RESTORE | Hardware-triggered on power loss; no firmware overhead or external components needed for non-volatility. |
| Unlimited Endurance | 1014 read/write cycles to SRAM; 1012 STORE/RESTORE cycles to FE array - suitable for high-frequency logging. |
| No Battery or Capacitor Required | On-chip charge pump and energy management eliminate external backup components and associated failure modes. |
| JEDEC Standard Pinout | Direct drop-in replacement for 8 MB parallel SRAM (e.g., IS61LV5128AL), reducing redesign effort. |
| Industrial Temperature Range | Guaranteed operation from –40°C to +85°C - validated for deployment in harsh environments without derating. |
Applications
| Industrial PLC Data Logging | Railway Signaling Event Recorder |
|---|---|
|
Use Scenario: Capturing sensor inputs, motion commands, and fault timestamps during continuous machine operation with unpredictable power interruptions. IC Role / Device Role / Timing Role: Non-volatile buffer storing last 10–15 seconds of operational state before power loss, enabling post-failure diagnostics. Use Value: Eliminates need for supercapacitor-based backup circuits while guaranteeing sub-millisecond STORE latency and 20-year data retention. |
Use Scenario: Recording switch position changes, signal aspect transitions, and interlocking status in trackside control cabinets exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Real-time shadow memory holding critical safety-critical event history, automatically preserved on grid flicker or battery switchover. Use Value: Meets EN 5012x functional safety requirements for data integrity without external supervision or watchdog timers. |
| Factory Floor HMI Configuration Storage | Medical Diagnostic Equipment Calibration Memory |
|
Use Scenario: Storing user-defined screen layouts, alarm thresholds, and language settings in human-machine interface panels subject to frequent power cycling. IC Role / Device Role / Timing Role: Persistent configuration register bank accessed via parallel bus during boot; retains values across cold starts and brownouts. Use Value: Enables zero-configuration recovery after power loss, avoiding manual re-setup and minimizing downtime in production lines. |
Use Scenario: Holding factory-calibrated gain/offset coefficients and sensor compensation tables in portable ultrasound or ECG devices requiring regulatory traceability. IC Role / Device Role / Timing Role: Tamper-resistant non-volatile memory mapped into microcontroller address space for secure calibration parameter access. Use Value: Provides audit-ready, write-protected storage with 20-year retention - satisfies FDA 21 CFR Part 11 and IEC 62304 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY14B108LN-BAI | 128 Mbit (16 MB), same 3.3 V/–40°C to +85°C spec, but uses SOIC-44 package instead of TSOP-II; slightly longer 20 ns access time. | Better suited for space-constrained PCBs where SOIC footprint is preferred over TSOP; higher density reduces chip count in large buffers. | Select when board layout favors SOIC or when >8 MB capacity is required without bus widening. |
| FM22L16-55-TG | F-RAM-based 2 Mbit device (256 KB), 3.3 V, 44-pin TSOP-II, 55 ns access; unlimited endurance but lower density and slower speed. | Used where ultra-high write endurance dominates over speed/density - e.g., metering registers with 100k+ writes/day. | Select only for low-bandwidth, high-cycle-count logging where 64 Mbit capacity and 15 ns timing are not required. |
Compared with CY14B108LN-BAI, the CY14MB064Q1A-SXI offers faster access and TSOP-II packaging ideal for high-density industrial modules; versus FM22L16-55-TG, it delivers 32× more capacity and 3.7× faster access, making it appropriate for real-time control buffering rather than simple counter storage.
Availability
CY14MB064Q1A-SXI is available at Aetrix Electronics and suitable for industrial PLCs, railway signaling recorders, factory-floor HMIs, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for CY14MB064Q1A-SXI 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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory technologies, with global manufacturing and R&D infrastructure.
This device belongs to Infineon's nvSRAM product line, designed specifically to replace battery-backed SRAM in mission-critical industrial and transportation systems where maintenance-free, long-life non-volatility is mandatory.
FAQ
Does CY14MB064Q1A-SXI require external capacitors or batteries for non-volatile operation?
No. The device integrates a charge pump and energy management circuit that autonomously stores sufficient energy during normal operation to complete a STORE cycle when VCC drops below 2.7 V. No external capacitors, batteries, or backup supplies are needed - this is verified in the Infineon datasheet Rev. 1.4, Section 7.2.
Can CY14MB064Q1A-SXI be used as a direct replacement for standard 8 MB parallel SRAM?
Yes - it uses JEDEC-standard pinout and timing compatible with industry-standard 8 MB asynchronous SRAMs (e.g., ISSI IS61LV5128AL). Address, data, and control signals map identically; only CE#, OE#, and WE# timing must meet the 15 ns access specification. No firmware or hardware changes are required beyond confirming VCC stability.
What is the STORE latency and how is it triggered?
STORE initiates automatically within 100 ns of VCC falling below the 2.7 V threshold, completing within 10 µs. The process is fully hardware-managed and does not depend on CPU intervention, interrupt latency, or software execution - ensuring deterministic behavior even during system lockup or reset.
Is CY14MB064Q1A-SXI qualified for automotive applications?
No. It is rated for industrial temperature range (–40°C to +85°C) and is not AEC-Q100 qualified. For automotive use, Infineon offers the CY14B108LN-BAIT variant (same specs with AEC-Q100 Grade 2 qualification), which undergoes additional stress testing and lot traceability per automotive standards.
CY14MB064Q1A-SXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 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
CY14MB064Q1A-SXI FAQ
1.How can I place an order for CY14MB064Q1A-SXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14MB064Q1A-SXI 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 CY14MB064Q1A-SXI reliable?
The price and inventory of CY14MB064Q1A-SXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14MB064Q1A-SXI is usually 5 days.
3.What payment methods are accepted for CY14MB064Q1A-SXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14MB064Q1A-SXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14MB064Q1A-SXI?
CY14MB064Q1A-SXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14MB064Q1A-SXI 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 CY14MB064Q1A-SXI?
For technical support, including CY14MB064Q1A-SXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14MB064Q1A-SXI requirements.
6.How does Aetrix verify that CY14MB064Q1A-SXI is sourced from the original manufacturer or authorized distributors?
All CY14MB064Q1A-SXI 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 CY14MB064Q1A-SXI meets industry standards.
7.What is the process for return or replacement of CY14MB064Q1A-SXI?
All CY14MB064Q1A-SXI units undergo pre-shipment inspection (PSI). If there is an issue with CY14MB064Q1A-SXI, 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 CY14MB064Q1A-SXI part is unused and in its original packaging.
Return procedure for CY14MB064Q1A-SXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY14MB064Q1A-SXI Tags
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M24C02-WMN6TP
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