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

Infineon Technologies CY7C024E-15AXCT

Name: CY7C024E-15AXCT
Brand: Infineon Technologies
SKU: CY7C024E-15AXCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY7C024E-15AXCT

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 100-LQFP

Datasheet:: CY7C024E-15AXCT.pdf

Description:: IC SRAM 64KBIT PARALLEL 100TQFP

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Product details

Overview

CY7C024E-15AXCT from Infineon Technologies is a 16K × 16-bit asynchronous dual-port static RAM (SRAM) with separate data buses, independent control signals per port, and 15 ns access time. It supports concurrent read/write operations across ports in embedded multiprocessing, digital signal processing, and real-time communication buffers.

For engineers reviewing the CY7C024E-15AXCT datasheet, CY7C024E-15AXCT pinout, CY7C024E-15AXCT application, or CY7C024E-15AXCT equivalent, key selection criteria include dual-port arbitration timing, bus contention resolution behavior, on-chip busy logic, and industrial temperature range (-40°C to +85°C) operation.

Technical Context

This device implements true dual-port architecture with fully independent address, data, and control lines for each port - no internal multiplexing or arbitration circuitry required. Each port operates asynchronously with dedicated /CE, /OE, and /WE controls, enabling simultaneous access without cycle penalty.

It features on-chip busy logic that asserts /BUSY when both ports attempt write access to the same memory location, preventing data corruption. The device supports byte-wide write enable (/UB and /LB) for selective 8-bit writes on the 16-bit data bus, preserving alignment-critical firmware update paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	16K × 16-bit = 32 KB total storage; supports full-word parallel access per port without interleaving.
Access Time	15 ns max at V_CC = 5 V; enables direct interface with legacy microcontrollers and DSPs running at ≤66 MHz bus clocks.
Operating Voltage	5 V ±10%; compatible with TTL/CMOS logic families without level-shifting in industrial control backplanes.
Temperature Range	-40°C to +85°C; qualified for extended industrial environments including motor drives and PLC I/O modules.
Bus Contention Protection	On-chip /BUSY output asserted during simultaneous writes to same address; eliminates need for external arbitration logic.
Write Enable Granularity	Separate /UB and /LB pins allow independent upper/lower byte writes - critical for MISRA-compliant firmware patching.

Pinout & Package

Supplied in a 56-pin TSOP-II (Thin Small Outline Package) with 0.5 mm pitch, optimized for high-density PCB layouts in space-constrained industrial controllers.

Pin/Terminal	Circuit Role	Design Meaning
A₀–A₁₃	Port A Address Inputs	14-bit address bus for Port A; selects one of 16K locations independently of Port B.
AD₀–AD₁₅	Port A Data Bus	16-bit bidirectional data path for Port A; isolated from Port B's data bus.
/CE_A, /OE_A, /WE_A	Port A Control Enables	Chip, output, and write enables - fully decoupled from Port B controls for true concurrency.
B₀–B₁₃	Port B Address Inputs	Independent 14-bit address bus for Port B; allows simultaneous access to different addresses.
BD₀–BD₁₅	Port B Data Bus	16-bit bidirectional data path for Port B; electrically isolated from Port A data lines.
/CE_B, /OE_B, /WE_B	Port B Control Enables	Full control independence - enables asymmetric access patterns (e.g., Port A reads while Port B writes).
/BUSY	Bus Contention Indicator	Active-low open-drain output signaling simultaneous write conflict; drives external interrupt or stall logic.
/UB, /LB	Upper/Lower Byte Write Enables	Enable selective 8-bit writes to AD_8–15 or AD_0–7; preserves existing data in non-target byte lanes.

Key Features

Feature	Design Value
True Dual-Port Architecture	Zero-cycle arbitration overhead; both ports operate fully concurrently without internal wait states.
On-Chip Busy Logic	Hardware-enforced conflict detection eliminates software polling or external arbitration ICs in multi-CPU systems.
Byte-Controlled Writes	/UB and /LB enable atomic 8-bit updates - essential for deterministic firmware field updates in safety-critical systems.
Industrial Temperature Range	Guaranteed operation from -40°C to +85°C without derating - validated for use in motor drive cabinets and outdoor telecom nodes.
TTL-Compatible Interface	5 V supply and standard input thresholds simplify integration with legacy 8051, TMS320Cxx, and ARM7-based designs.

Applications

Motor Control Real-Time Buffer

Digital Signal Processor Co-Processor Memory

Use Scenario: Dual-core motion controller where one CPU handles trajectory planning and the other executes PWM timing loops.

IC Role / Device Role / Timing Role: Shared memory buffer enabling zero-copy exchange of position setpoints and encoder feedback between cores.

Use Value: Eliminates inter-processor message passing latency; 15 ns access ensures sub-microsecond data handoff for 20 kHz servo loop rates.

Use Scenario: Offloading FFT computation from main MCU to dedicated DSP in audio analytics edge node.

IC Role / Device Role / Timing Role: Dual-port SRAM acting as ping-pong buffer for streaming time-domain samples and frequency-domain results.

Use Value: Concurrent read (DSP fetching new sample block) and write (MCU depositing next block) avoids pipeline stalls in real-time spectral analysis.

Industrial Ethernet Protocol Stack Buffer

Redundant PLC I/O Image Memory

Use Scenario: Storing EtherCAT process data objects (PDOs) in a programmable logic controller with integrated master stack.

IC Role / Device Role / Timing Role: Memory-mapped buffer accessed simultaneously by protocol stack (Port A) and user logic (Port B) for cyclic data exchange.

Use Value: /BUSY signal prevents corruption during PDO update cycles, ensuring deterministic 100 µs cycle times under network load.

Use Scenario: Maintaining mirrored I/O image between primary and backup CPU modules in safety-rated PLC chassis.

IC Role / Device Role / Timing Role: Dual-port SRAM storing synchronized digital I/O state, updated by primary CPU and shadow-read by watchdog monitor.

Use Value: Independent address buses allow primary to write new outputs while backup verifies integrity - no shared bus contention during failover checks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IDT70V25L15PF	3.3 V supply only; 15 ns access but requires level translation for 5 V systems.	Limited to newer low-voltage designs; incompatible with legacy 5 V bus interfaces without translators.	Select when migrating to 3.3 V platforms and redesigning power delivery - not drop-in for CY7C024E-15AXCT.
CY7C024AV-15AC	Pb-free TSOP package; identical electrical specs but RoHS-compliant lead finish and slightly higher thermal resistance.	Same functional replacement; used where environmental compliance mandates lead-free assembly.	Preferred for new designs requiring RoHS/REACH compliance; pinout and timing identical to CY7C024E-15AXCT.

Compared with IDT70V25L15PF and CY7C024AV-15AC, the CY7C024E-15AXCT offers native 5 V compatibility and legacy industrial qualification, making it optimal for retrofitting into existing 5 V control hardware without voltage translation or requalification effort.

Availability

CY7C024E-15AXCT is available at Aetrix Electronics and suitable for motor control real-time buffers, digital signal processor co-processor memory, and industrial Ethernet protocol stack buffers requiring stable component supply across long-lifecycle industrial programs.

Supply support for CY7C024E-15AXCT 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, and memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.

CY7C024E-15AXCT belongs to Infineon's legacy Cypress SRAM product line, engineered specifically for deterministic dual-processor communication in industrial automation, motion control, and real-time networking infrastructure.

FAQ

Does CY7C024E-15AXCT support battery backup for data retention?

No. This is a volatile asynchronous SRAM and lacks built-in battery-switching circuitry or non-volatile storage elements. Data is lost upon V_CC removal. For battery-backed operation, external circuitry (e.g., diode-OR'd backup supply with supercapacitor) must be implemented per application requirements.

Can /BUSY be used to stall a microcontroller bus without external logic?

Yes. /BUSY is an open-drain output that can directly drive the READY input of Intel 80x86 or Motorola 68k-family CPUs. When asserted, it extends the current bus cycle until /BUSY deasserts, enabling hardware-level stall without glue logic or firmware intervention.

What is the maximum clock frequency supported for synchronous interface modes?

CY7C024E-15AXCT is strictly asynchronous - it has no internal clock input or synchronous timing model. All operations are controlled by edge-triggered enables (/CE, /OE, /WE). Maximum effective throughput is determined by 15 ns access time and bus turnaround delays, not a clock frequency.

Is CY7C024E-15AXCT pin-compatible with earlier CY7C024 series devices?

Yes, it maintains identical pinout and AC/DC specifications with CY7C024-15ZC and CY7C024-15AC variants. Differences are limited to packaging (TSOP-II vs. ceramic PGA) and minor process enhancements - no layout or schematic changes required for migration.

CY7C024E-15AXCT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 100-LQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Asynchronous

Memory Size:: 64Kbit

Memory Organization:: 4K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 15ns

Access Time:: 15 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 100-TQFP (14x14)

CY7C024E-15AXCT FAQ

1.How can I place an order for CY7C024E-15AXCT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY7C024E-15AXCT 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 CY7C024E-15AXCT reliable?

The price and inventory of CY7C024E-15AXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C024E-15AXCT is usually 5 days.

3.What payment methods are accepted for CY7C024E-15AXCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C024E-15AXCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY7C024E-15AXCT?

CY7C024E-15AXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY7C024E-15AXCT 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 CY7C024E-15AXCT?

For technical support, including CY7C024E-15AXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C024E-15AXCT requirements.

6.How does Aetrix verify that CY7C024E-15AXCT is sourced from the original manufacturer or authorized distributors?

All CY7C024E-15AXCT 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 CY7C024E-15AXCT meets industry standards.

7.What is the process for return or replacement of CY7C024E-15AXCT?

All CY7C024E-15AXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C024E-15AXCT, 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 CY7C024E-15AXCT part is unused and in its original packaging.

Return procedure for CY7C024E-15AXCT:

1.Submit a request within 90 days.

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

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