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HomeProductsIntegrated Circuits (ICs)Specialized ICsCY7C144E-15AXI
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CY7C144E-15AXI - Cypress Semiconductor

Manufacturer Part Number
CY7C144E-15AXI
Manufacturer
Cypress Semiconductor
Allelco Part Number
41D-CY7C144E-15AXI
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
14,230 pcs available, New & Original
Parts Description
64-LQFP
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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Our certification
In stock: 14230
  • Unit Price: $2.28
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.28 $2.28
200+ $0.882 $176.40
500+ $0.852 $426.00
1000+ $0.837 $837.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

CY7C144E-15AXI Tech Specifications
Cypress Semiconductor - CY7C144E-15AXI technical specifications, attributes, parameters and parts with similar specifications to Cypress Semiconductor - CY7C144E-15AXI

Product Attribute Attribute Value
Part Number CY7C144E-15AXI
Package 64-LQFP
Description 64-LQFP
Stock Condition Get 14230 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Cypress Semiconductor
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

CY7C144E-15AXI

Manufacturer

Infineon Technologies

Introduction

The CY7C144E-15AXI is a high-performance, dual-port, asynchronous SRAM. It offers a memory size of 64Kbit with a memory organization of 8K x 8. This SRAM device is designed for a wide range of applications that require fast access times and efficient data storage.

Product Features and Performance

64Kbit memory size

8K x 8 memory organization

Dual-port, asynchronous SRAM architecture

15ns write cycle time (word, page)

15ns access time

5V to 5.5V operating voltage

-40°C to 85°C operating temperature range

Surface mount package (64-LQFP)

Product Advantages

High-speed performance for efficient data processing

Dual-port design for concurrent read and write operations

Wide voltage and temperature operating range for versatile applications

Compact surface mount package for space-saving PCB designs

Key Reasons to Choose This Product

Reliable and proven SRAM technology from a reputable manufacturer

Excellent performance characteristics for time-critical applications

Flexibility in integration with various system architectures

Cost-effective solution for memory-intensive embedded systems

Quality and Safety Features

Rigorous quality control and testing processes

RoHS compliance for environmental responsibility

Industrial-grade components for reliable operation

Compatibility

This SRAM device is compatible with a wide range of microcontrollers, processors, and other digital systems that require fast, high-density memory.

Application Areas

Embedded systems

Industrial automation and control

Telecommunications equipment

Military and aerospace applications

Medical devices

Consumer electronics

Product Lifecycle

The CY7C144E-15AXI is an obsolete product. Customers should contact our website's sales team for information on equivalent or alternative models that may be available.

Frequently Asked Questions(FAQ)

How does the CY7C144E-15AXI SRAM’s access time compare to other dual-port asynchronous SRAMs when handling simultaneous read and write operations at 5V supply?
The CY7C144E-15AXI offers a 15 ns access time, which is typical for mid-speed dual-port asynchronous SRAMs targeting embedded systems requiring concurrent data flow. In comparison with similar devices like the CY7C146 or IS61WV06416DBLL, the 15 ns timing reflects a balance between throughput and power consumption. At 5V operation, this allows roughly 66 million access cycles per second per port, enabling reliable real-time processing in industrial control applications where one port manages memory updates while the other serves external logic without significant arbitration overhead.
What are the thermal implications of using the CY7C144E-15AXI in a compact PCB layout with limited airflow, given its 64-TQFP package and -40°C to 85°C operating range?
The 64-TQFP (14x14 mm) package has moderate thermal mass but generates heat proportional to dynamic switching current during parallel bus activity. While the device is rated from -40°C to 85°C, sustained full-speed bidirectional transfers can elevate junction temperatures above ambient, especially in dense layouts with adjacent high-power components. Designers should allocate adequate copper pour under the IC for heat spreading and avoid routing critical signals near power pins to minimize crosstalk-induced retries. Thermal derating may be necessary in sealed enclosures or extended high-temperature environments.
Can the CY7C144E-15AXI safely interface directly with a 3.3V microcontroller without level shifting, considering its 4.5V to 5.5V supply requirement?
No, direct interfacing is not recommended. The CY7C144E-15AXI requires 4.5V–5.5V on VCC, while most modern microcontrollers operate at 3.3V or lower. Connecting 3.3V logic directly to input pins risks undefined states due to insufficient noise margin and potential damage over time from undershoot or latch-up conditions. A bidirectional voltage-level translator or dedicated buffer circuit must be used to ensure signal integrity and long-term reliability, particularly for address and data lines toggling at up to 66 MHz equivalent frequency.
How does the 8K x 8 organization of the CY7C144E-15AXI affect block addressing efficiency compared to larger SRAMs like 16K x 8 in industrial sensor data logging applications?
The 8K x 8 structure limits each port to addressing only 8,192 unique locations, which may necessitate segmentation of data buffers or use of bank-switching logic in continuous logging tasks. Compared to a 16K x 8 variant, this halves available memory per port, potentially increasing fragmentation in multi-source streaming scenarios. However, it simplifies address decoding and reduces pin count, benefiting cost-sensitive designs. Engineers must account for this constraint by optimizing data structures or combining multiple smaller buffers rather than relying on a single large contiguous block.
What design trade-offs exist between using the CY7C144E-15AXI versus an SPI-based FRAM for non-volatile caching in battery-backed systems?
The CY7C144E-15AXI provides fast parallel access ideal for real-time data buffering but loses content on power loss unless backed by a supercapacitor or battery. In contrast, FRAM retains data indefinitely and consumes far less static power, making it superior for energy-constrained caching. The SRAM trades endurance (infinite writes) against volatility, while FRAM offers low-power non-volatility at the cost of slower write speeds (~20–30 ns vs. 15 ns read, though still faster than EEPROM). For transient buffering with frequent writes, CY7C144E-15AXI excels; for persistent state preservation, FRAM is preferable despite higher per-byte cost.
Is it acceptable to cascade multiple CY7C144E-14AXI (14ns version) and CY7C144E-15AXI units on the same parallel bus for expanded memory depth?
Yes, but only if careful attention is paid to propagation delays and setup/hold margins. Both variants share identical pinout and protocol, allowing physical stacking via chip select lines. However, the 14ns device has tighter timing specs, meaning the 15ns unit becomes the limiting factor in worst-case cycle time. Simultaneous access across banks remains possible, but synchronous timing analysis must confirm that all signals meet minimum pulse widths and skew budgets across temperature extremes. Signal integrity measures—such as controlled impedance routing and termination—are essential to prevent metastability during cross-chip handoffs.
What precautions should be taken when implementing error detection in systems using the CY7C144E-15AXI due to its lack of built-in ECC or parity support?
Since the CY7C144E-15AXI lacks hardware parity or ECC, software-based checksumming or watchdog timers become necessary for mission-critical applications. Given its 15 ns access window, even single-bit flips caused by cosmic rays or EMI could corrupt data before detection. Implement periodic CRC validation on stored blocks or use Hamming codes in firmware, especially in aerospace or medical environments. Additionally, monitor VCC stability within ±2% tolerance to avoid soft errors from voltage droop during high-frequency bursts.
How does the dual-port architecture of the CY7C144E-15AXI improve system responsiveness in motor control units compared to single-port alternatives?
By allowing independent read/write paths, the CY7C144E-15AXI enables one processor core to fetch instruction sets while another writes PWM duty cycles or ADC results simultaneously. This concurrency reduces latency in real-time control loops—critical for maintaining precise timing in servo drives. Single-port SRAM would force serialization, introducing stalls during context switches. With 15 ns access, both ports can sustain nearly full bandwidth (up to 66 MB/s theoretical), minimizing bottlenecks in multi-threaded control architectures common in robotics and automation.
Are there known compatibility issues between the CY7C144E-15AXI and FPGA soft-core memory controllers operating at 125 MHz clock rates?
Potential mismatches arise if the FPGA controller assumes zero wait states for all memory accesses. At 125 MHz, the FPGA’s internal logic might issue commands faster than the CY7C144E-15AXI can respond (requiring ~7.5 ns setup plus 15 ns active time), leading to data corruption. Proper synchronization via ready/busy handshake or adaptive wait-state insertion is required. Always verify timing closure using IBIS models and perform functional testing under worst-case process-voltage-temperature corners to ensure reliable operation beyond nominal conditions.
What impact does the 64-LQFP footprint have on automated assembly yields when substituting the CY7C144E-15AXI into legacy designs originally populated with SOIC-based SRAMs?
The 64-TQFP (14x14x1.4mm) occupies more board area than standard SOIC-68 packages, potentially reducing solder joint inspection coverage and increasing risk of popcorning during reflow. Automated optical inspection (AOI) systems may flag the dense pin array as a challenge zone, lowering yield if pad geometry doesn’t match legacy footprints exactly. Migration requires new stencil designs and possibly manual rework capability. That said, the TQFP’s improved thermal performance offsets some reliability concerns in high-stress environments.
In what scenarios would the CY7C144E-15AXI outperform pipelined DRAM despite its volatile nature?
The CY7C144E-15AXI excels when deterministic latency is paramount—such as interrupt service routines or DMA burst transfers where DRAM refresh cycles introduce jitter. Its asynchronous interface eliminates row/column activation delays inherent in SDRAM. For temporary frame buffering in video capture or rapid sensor averaging, the SRAM delivers consistent 15 ns response regardless of memory location. DRAM’s higher density comes at the expense of variable access patterns, making CY7C144E-15AXI preferable in hard real-time subsystems where predictability trumps capacity.
How should ESD protection be integrated around the CY7C144E-15AXI in harsh industrial environments prone to electrostatic discharge?
Place transient voltage suppressors (TVS diodes) with <5 pF capacitance on every I/O line near the TQFP socket or connector. Choose devices rated for ±15 kV contact discharge per IEC 61000-4-2. Series resistors (22–100 Ω) limit current into sensitive inputs while preserving signal rise/fall times (<15 ns implies need for clean edges). Ground planes under the IC enhance dissipation, but avoid stitching vias directly under signal traces to prevent ground loops. Validate protection networks through HBM and CDM testing to ensure no degradation after repeated surges.
Does the RoHS3 compliance of the CY7C144E-15AXI guarantee suitability for lead-free soldering processes used in automotive production lines?
RoHS3 compliance confirms absence of restricted substances, but automotive qualification requires additional validation. The CY7C144E-14AXI (and thus E-15AXI) uses lead-free termination plating compatible with SAC305 solder, but thermal cycling from -40°C to 125°C (beyond the IC’s TA rating) demands careful reflow profiling. Sn whisker mitigation and conformal coating selection also influence long-term reliability. While chemically safe, mechanical stress from CTE mismatches between FR4 and TQFP substrate can induce cracks—especially after multiple thermal excursions common in under-hood deployments.
What role does the base product number CY7C144 play in lifecycle management when sourcing the CY7C144E-15AXI?
The CY7C144 family includes multiple speed grades (e.g., -10, -15, -18), voltage options, and packaging variants. Using the full CY7C144E-15AXI designation ensures alignment with specific timing and environmental requirements. Mismatching speed grades (e.g., deploying a -15AXI in a -10AXI footprint without verifying timing) risks violating setup constraints. Distributors and manufacturers maintain separate BOM records per suffix, simplifying obsolescence tracking. Always reference the complete part number during procurement to avoid substituting incompatible derivatives during design revisions.
How does power consumption scale during burst-mode operations involving the CY7C144E-15AXI at 5.0V supply?
Static current is typically <1 mA at room temperature, but active current rises linearly with data rate. During sustained 15 ns cycles (≈66 MHz effective), quiescent current can reach 10–15 mA depending on toggle activity. Dynamic power scales with CL × V² × f, where CL represents output load capacitance. For 100 pF total load, this yields ~16 mW per active pin. In burst reads/writes, average power doubles compared to idle states. Designers should budget for peak currents during initialization phases and consider sleep modes if periods of inactivity exceed 1 ms intervals.

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Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Cypress Semiconductor

CY7C144E-15AXI

Cypress Semiconductor
41D-CY7C144E-15AXI

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