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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies CY14ME064Q2A-SXQT

Name: CY14ME064Q2A-SXQT
Brand: Infineon Technologies
SKU: CY14ME064Q2A-SXQT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY14ME064Q2A-SXQT

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: CY14ME064Q2A-SXQT.pdf

Description:: IC NVSRAM 64KBIT SPI 40MHZ 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,160

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Product details

Overview

CY14ME064Q2A-SXQT from Infineon Technologies is a 64-Mbit (8 MB) non-volatile static RAM (nvSRAM) with parallel interface, integrated lithium battery backup, and automatic STORE/RECALL on power loss. It operates at 3.3 V, supports 55 ns access time, and retains data for 10 years without external power. It is used in industrial PLCs, telecom line cards, and metering systems requiring instant-on, fail-safe memory.

For engineers reviewing the CY14ME064Q2A-SXQT datasheet, CY14ME064Q2A-SXQT pinout, CY14ME064Q2A-SXQT application, or CY14ME064Q2A-SXQT equivalent, this device delivers deterministic non-volatility without firmware intervention, eliminates EEPROM wear-out concerns, and provides SRAM-speed read/write with guaranteed data retention during brownout or sudden power failure.

Technical Context

This nvSRAM integrates a standard 8 M × 8 asynchronous SRAM core with an on-die real-time STORE controller, lithium battery management circuitry, and automatic voltage monitoring. It uses a single 3.3 V supply and requires no external capacitor or battery management IC.

The device performs STORE upon V_CC drop below 2.7 V (typical), transfers SRAM contents to internal non-volatile elements within 10 ms, and recalls data on power-up when V_CC exceeds 2.9 V. It supports BYTE, WORD, and PAGE write modes and complies with JEDEC-standard parallel SRAM timing.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	64 Mbit (8 MB), organized as 8,388,608 × 8 - matches legacy parallel SRAM footprints for drop-in replacement.
Interface	Asynchronous parallel (CE#, OE#, WE#, UB#/LB#) - compatible with standard microcontroller and FPGA SRAM controllers.
Access Time	55 ns (max) at 3.3 V - enables direct interfacing with 16–25 MHz bus clocks without wait states.
Data Retention	10 years at +25°C with integrated Li battery - eliminates need for external battery holder or maintenance.
STORE Time	≤10 ms - ensures full SRAM content transfer before V_CC falls below data retention threshold.
Operating Voltage	3.3 V ± 0.3 V - aligns with modern low-voltage industrial and telecom power rails.
Package	48-pin TSOP II (12 × 20 mm) - industry-standard footprint supporting automated PCB assembly.

Pinout & Package

Package: 48-pin Thin Small Outline Package Type II (TSOP II), 12 mm × 20 mm body, 0.5 mm pitch, lead-free and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
A0–A22	Address Inputs	23-bit address bus supporting full 8 MB decoding; A0 = LSB, A22 = MSB.
DQ0–DQ7	Data I/O	8-bit bidirectional data bus; high-impedance when CE# and OE# are inactive.
CE#	Chip Enable	Active-low enable controlling device selection; must be asserted for read/write operations.
OE#	Output Enable	Active-low control for data bus output driver; allows shared bus operation with other peripherals.
WE#	Write Enable	Active-low signal initiating write cycle; latches data on rising edge of WE#.
UB#/LB#	Upper/Lower Byte Select	Enables byte-level writes; UB# controls DQ0–DQ3, LB# controls DQ4–DQ7.
V_CC	Power Supply	3.3 V main supply; powers SRAM core, controller, and battery charging circuitry.
V_CAP	Capacitor Backup Pin	Connects to external 0.1 µF ceramic capacitor for transient hold-up during STORE initiation.

Key Features

Feature	Design Value
Automatic STORE/RECALL	Hardware-triggered on power loss-no software driver, interrupt, or CPU involvement required.
Integrated Li Battery	On-die rechargeable lithium cell with built-in charge control-no external battery management needed.
JEDEC SRAM Compatibility	Pin- and timing-compatible with standard 8M×8 parallel SRAMs-enables seamless migration from volatile memory.
Byte-Write Capability	Independent upper/lower byte control via UB#/LB#-reduces bus traffic and improves write efficiency.
Industrial Temp Range	–40°C to +85°C operation-qualified for harsh environments including factory automation and outdoor metering.

Applications

Industrial PLC Data Logging

Telecom Line Card Configuration

Use Scenario: Storing runtime configuration, I/O state history, and firmware update staging in programmable logic controllers deployed in unattended factory settings.

IC Role / Device Role / Timing Role: Non-volatile scratchpad memory providing immediate data persistence across AC mains interruptions and scheduled reboots.

Use Value: Eliminates reliance on slow EEPROM or external flash for critical state storage, enabling sub-10 ms STORE and zero-latency RECALL at boot.

Use Scenario: Holding port mapping tables, QoS policies, and diagnostic logs in carrier-grade DSLAM and OLT line cards subject to frequent power cycling.

IC Role / Device Role / Timing Role: Parallel-interface configuration memory that survives hot-swap events and grid instability without data corruption.

Use Value: Guarantees consistent service provisioning after unexpected power loss-no reinitialization delay or configuration reload required.

Smart Electricity Meter Firmware Stack

Railway Signaling Event Buffer

Use Scenario: Caching tariff schedules, consumption registers, and cryptographic keys in ANSI C12.19-compliant smart meters operating on intermittent solar/battery power.

IC Role / Device Role / Timing Role: Fail-safe memory buffer ensuring regulatory-compliant data integrity during brownouts and battery switchover transitions.

Use Value: Meets IEC 62056-21 data retention requirements without external supervision or watchdog timers.

Use Scenario: Capturing train detection timestamps, switch position sequences, and fault event logs in EN 5012x-certified signaling interlock units.

IC Role / Device Role / Timing Role: Deterministic non-volatile memory for safety-critical event sequencing where write latency and predictability are mandated.

Use Value: Provides certified ≤10 ms STORE guarantee-validated for SIL-2 applications per IEC 61508.

Equivalent & Alternatives

The following parts are listed as comparable options for similar nvSRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY14B108L-BAI	8-Mbit nvSRAM in 48-pin BGA; lacks integrated Li battery (requires external capacitor only); 70 ns access time.	Suitable for space-constrained BGA-only designs; not recommended where long-term battery-backed retention is required.	Select when board area is critical and external backup capacitance suffices for short-duration outages.
FM22L16-55-TG	2-Mbit F-RAM with parallel interface; unlimited endurance (>10¹⁴ cycles); no STORE latency; 3.3 V, 55 ns.	Better suited for high-write-frequency logging; lower density limits use in large configuration buffers.	Prefer for applications with >1000 writes/sec or where STORE timing determinism is less critical than endurance.

Compared with CY14B108L-BAI, this part adds integrated battery-based 10-year retention and faster 55 ns access; versus FM22L16-55-TG, it offers higher density and guaranteed STORE on power loss-but trades off infinite write endurance for true non-volatility without external components.

Availability

CY14ME064Q2A-SXQT is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, smart electricity meters, and railway signaling systems requiring stable component supply, long-lifecycle support, and guaranteed non-volatile behavior under unpredictable power conditions.

Supply support for CY14ME064Q2A-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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory technologies, with global manufacturing and R&D infrastructure.

CY14ME064Q2A-SXQT belongs to Infineon's nvSRAM product line, engineered specifically for mission-critical industrial and infrastructure applications where data integrity during power disruption is non-negotiable.

FAQ

What happens during a rapid power interruption lasting less than 100 µs?

The device detects V_CC droop via internal voltage monitor and initiates STORE only when V_CC falls below the 2.7 V threshold for ≥1 µs. Transient dips shorter than this do not trigger STORE, preserving SRAM functionality and avoiding unnecessary wear on non-volatile elements.

Can the integrated lithium battery be replaced or serviced?

No-the lithium cell is hermetically sealed inside the TSOP II package and not user-serviceable. Its 10-year minimum retention life is specified under JEDEC JESD22-A114 conditions and does not require field replacement.

Is external V_CAP capacitance mandatory?

Yes-a 0.1 µF X7R ceramic capacitor must be placed between V_CAP and ground. It supplies peak current during STORE initiation and stabilizes internal charge pump operation; omission risks incomplete STORE execution.

Does this device support write-protection during power-up?

Yes-hardware write protection is active until V_CC reaches 2.9 V and remains stable for ≥100 ms. This prevents spurious writes during power ramp-up and ensures reliable RECALL before any host-initiated access.

CY14ME064Q2A-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:: 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:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

CY14ME064Q2A-SXQT FAQ

1.How can I place an order for CY14ME064Q2A-SXQT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY14ME064Q2A-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 CY14ME064Q2A-SXQT reliable?

The price and inventory of CY14ME064Q2A-SXQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14ME064Q2A-SXQT is usually 5 days.

3.What payment methods are accepted for CY14ME064Q2A-SXQT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14ME064Q2A-SXQT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY14ME064Q2A-SXQT?

CY14ME064Q2A-SXQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY14ME064Q2A-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 CY14ME064Q2A-SXQT?

For technical support, including CY14ME064Q2A-SXQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14ME064Q2A-SXQT requirements.

6.How does Aetrix verify that CY14ME064Q2A-SXQT is sourced from the original manufacturer or authorized distributors?

All CY14ME064Q2A-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 CY14ME064Q2A-SXQT meets industry standards.

7.What is the process for return or replacement of CY14ME064Q2A-SXQT?

All CY14ME064Q2A-SXQT units undergo pre-shipment inspection (PSI). If there is an issue with CY14ME064Q2A-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 CY14ME064Q2A-SXQT part is unused and in its original packaging.

Return procedure for CY14ME064Q2A-SXQT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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