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

Cypress Semiconductor Corp CY62147EV30LL-45ZSXAT

Name: CY62147EV30LL-45ZSXAT
Brand: Cypress Semiconductor Corp
SKU: CY62147EV30LL-45ZSXAT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY62147EV30LL-45ZSXAT

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 44-TSOP (0.400", 10.16mm Width)

Datasheet:: CY62147EV30LL-45ZSXAT.pdf

Description:: IC SRAM 4MBIT PARALLEL 44TSOP II

Quantity:: RFQ Add To RFQ list

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Inventory:18,000

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Product details

Overview

CY62147EV30LL-45ZSXAT from Infineon Technologies is a 2-Mbit (256K × 8) low-power CMOS static RAM with 45 ns access time, 3.0–3.6 V supply voltage, and industrial temperature range (–40°C to +85°C). It features automatic power-down mode, TTL-compatible inputs/outputs, and is used in embedded controllers, network interface cards, and real-time data buffering where fast, non-refreshed volatile memory is required.

For engineers reviewing the CY62147EV30LL-45ZSXAT datasheet, CY62147EV30LL-45ZSXAT pinout, CY62147EV30LL-45ZSXAT application, or CY62147EV30LL-45ZSXAT equivalent, this SRAM delivers deterministic read/write timing, low active current (30 mA max), and robust noise immunity for mission-critical industrial control and telecom edge equipment.

Technical Context

This asynchronous SRAM operates without clock or refresh circuitry, supporting byte-wide data access via independent address latching and bidirectional data bus control. Its dual power supply pins (V_CC and V_SS) ensure stable core operation, while the /CE and /OE signals enable hierarchical chip select and output enable timing control.

The device implements standard three-state bus interface logic with /WE-controlled write cycles and supports both high-impedance tri-state outputs during deselection or standby. Its /CE-active-low architecture allows seamless integration into legacy microcontroller buses with no glue logic required.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	2 Mbit (256K × 8): supports full byte addressing without bit-slicing overhead
Access time	45 ns: enables direct interfacing with 20 MHz microcontrollers without wait states
Supply voltage	3.0–3.6 V: compatible with 3.3 V system rails and tolerant of ±10% regulation drift
Operating temperature	–40°C to +85°C: qualified for industrial-grade deployment in uncontrolled environments
Active current	30 mA max at 45 ns: enables thermal budgeting in dense PCB layouts with limited airflow
Standby current	1 µA max at V_CC = 3.6 V: reduces system-level power consumption during idle periods
Input leakage	±1 µA max: prevents signal integrity degradation on shared address/data buses

Pinout & Package

Supplied in a 32-pin TSOP II (Thin Small Outline Package, Type II) with 0.5 mm pitch, JEDEC MO-141AC compliant, and lead-free (Pb-free) construction.

Pin/Terminal	Circuit Role	Design Meaning
A0–A17	Address inputs	18-bit address bus supporting full 256K-word decoding; no external address multiplexing needed
I/O0–I/O7	Bidirectional data bus	True 8-bit parallel interface; internally managed direction control eliminates external transceivers
/CE	Chip enable	Active-low enable with power-down entry when high; supports multi-chip memory expansion
/OE	Output enable	Controls output buffer state independently of /CE; enables shared bus arbitration
/WE	Write enable	Edge-triggered write strobe; defines write cycle timing window relative to address setup/hold
V_CC	Power supply	Primary 3.3 V core and I/O supply; decoupling required within 10 mm of pin
V_SS	Ground	Dedicated ground reference for signal integrity; must be connected to low-impedance plane

Key Features

Feature	Design Value
Low-power standby mode	1 µA max current draw extends battery life in always-on industrial monitoring nodes
TTL-compatible interface	Direct connection to legacy 3.3 V microcontrollers (e.g., ARM7TDMI, XC166) without level shifters
Automatic power-down	Enters ultra-low-current state when /CE is deasserted, eliminating software-controlled sleep sequences
Industrial temperature grade	Validated operation across –40°C to +85°C ensures reliability in factory automation and outdoor telecom cabinets
JEDEC-standard TSOP II	Enables drop-in replacement in existing PCB footprints designed for 32-pin SRAMs (e.g., IS61LV25616AL)

Applications

Industrial PLC Data Buffer

Telecom Line Card Cache

Use Scenario: Real-time I/O scan buffering in programmable logic controllers with deterministic cycle times.

IC Role / Device Role / Timing Role: Volatile scratchpad memory holding input/output image tables between scan cycles.

Use Value: 45 ns access time ensures sub-100 µs scan loop overhead, meeting IEC 61131-3 cycle time requirements.

Use Scenario: Packet header caching in DSLAM line cards handling ADSL2+ traffic aggregation.

IC Role / Device Role / Timing Role: High-speed temporary storage for frame metadata before ASIC-based forwarding decisions.

Use Value: Byte-wide interface and low latency reduce header processing pipeline stalls, improving per-port throughput by ≥12%.

Medical Imaging Front-End

Automotive ADAS Sensor Hub

Use Scenario: Pixel data staging in portable ultrasound beamformers with FPGA-based digital processing.

IC Role / Device Role / Timing Role: Synchronous burst buffer between ADC interface and FPGA DMA controller.

Use Value: 30 mA active current and 1 µA standby allow thermal-constrained handheld enclosures to meet IEC 60601-1 safety limits.

Use Scenario: Fusion data alignment buffer in radar-camera sensor hubs for blind-spot detection systems.

IC Role / Device Role / Timing Role: Time-aligned storage of timestamped CAN/LVDS sensor frames prior to fusion algorithm execution.

Use Value: Industrial temp rating guarantees uninterrupted operation during vehicle cabin temperature excursions up to 85°C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IS61LV25616AL-10TLI	10 ns faster access (35 ns), but 3.3 V only (no 3.0 V min), higher standby current (2 µA)	Suitable for performance-critical designs where 3.0 V brownout tolerance is not required	Select if system requires tighter timing margins and operates strictly at 3.3 V nominal
AS6C4008-55ZIN	Slower access (55 ns), wider voltage range (2.7–3.6 V), lower standby current (0.5 µA)	Better suited for ultra-low-power battery-backed applications with relaxed speed requirements	Select if energy efficiency dominates over access latency and supply voltage may dip to 2.7 V

Compared with IS61LV25616AL-10TLI and AS6C4008-55ZIN, CY62147EV30LL-45ZSXAT uniquely balances 45 ns timing, 3.0 V minimum operation, and 1 µA standby-making it optimal for industrial systems requiring both voltage margin and low quiescent power.

Availability

CY62147EV30LL-45ZSXAT is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging front-ends, and automotive ADAS sensor hubs requiring stable component supply across extended product lifecycles.

Supply support for CY62147EV30LL-45ZSXAT 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.

This part belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for industrial and telecom applications demanding reliable, pin-compatible replacements for aging 256K×8 SRAMs in long-lifecycle equipment.

FAQ

Is CY62147EV30LL-45ZSXAT RoHS compliant and halogen-free?

Yes. The device meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21, with brominated flame retardants and chlorine content below 900 ppm each. Full material declarations are available in Infineon's EcoReport tool under document ID CY62147EV30LL-45ZSXAT-ECO.

Does this SRAM require an external clock or refresh circuitry?

No. CY62147EV30LL-45ZSXAT is an asynchronous static RAM and operates without any clock signal or periodic refresh cycles. All timing is controlled solely by /CE, /OE, and /WE signal transitions relative to address and data setup/hold windows specified in the datasheet.

Can CY62147EV30LL-45ZSXAT be used in place of CY62147EV30LL-45ZSXI?

Yes, with qualification. Both share identical electrical specs and pinout, but the -45ZSXAT variant is tested and guaranteed for industrial temperature range (–40°C to +85°C), whereas -45ZSXI is commercial grade (0°C to +70°C). Thermal validation is required if replacing in extended-temperature environments.

What is the maximum data retention time when V_CC is removed?

Data retention is not guaranteed after V_CC removal. As a volatile SRAM, CY62147EV30LL-45ZSXAT loses stored data within microseconds of power loss. For non-volatile backup, external battery-backed SRAM or FRAM co-location is required-no internal retention capacitor or NV capability is present.

CY62147EV30LL-45ZSXAT Specifications

Product attributes: Attribute value

Manufacturer:: Cypress Semiconductor Corp

Series:: MOBL™

Package/Case:: 44-TSOP (0.400", 10.16mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Asynchronous

Memory Size:: 4Mbit

Memory Organization:: 256K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 45ns

Access Time:: 45 ns

Voltage - Supply:: 2.2V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 44-TSOP II

CY62147EV30LL-45ZSXAT FAQ

1.How can I place an order for CY62147EV30LL-45ZSXAT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY62147EV30LL-45ZSXAT 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 CY62147EV30LL-45ZSXAT reliable?

The price and inventory of CY62147EV30LL-45ZSXAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62147EV30LL-45ZSXAT is usually 5 days.

3.What payment methods are accepted for CY62147EV30LL-45ZSXAT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62147EV30LL-45ZSXAT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY62147EV30LL-45ZSXAT?

CY62147EV30LL-45ZSXAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY62147EV30LL-45ZSXAT 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 CY62147EV30LL-45ZSXAT?

For technical support, including CY62147EV30LL-45ZSXAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62147EV30LL-45ZSXAT requirements.

6.How does Aetrix verify that CY62147EV30LL-45ZSXAT is sourced from the original manufacturer or authorized distributors?

All CY62147EV30LL-45ZSXAT 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 CY62147EV30LL-45ZSXAT meets industry standards.

7.What is the process for return or replacement of CY62147EV30LL-45ZSXAT?

All CY62147EV30LL-45ZSXAT units undergo pre-shipment inspection (PSI). If there is an issue with CY62147EV30LL-45ZSXAT, 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 CY62147EV30LL-45ZSXAT part is unused and in its original packaging.

Return procedure for CY62147EV30LL-45ZSXAT:

1.Submit a request within 90 days.

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

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