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

Infineon Technologies CY62147EV30LL-45B2XAT

Name: CY62147EV30LL-45B2XAT
Brand: Infineon Technologies
SKU: CY62147EV30LL-45B2XAT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY62147EV30LL-45B2XAT

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 48-VFBGA

Datasheet:: CY62147EV30LL-45B2XAT.pdf

Description:: IC SRAM 4MBIT PARALLEL 48VFBGA

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Product details

Overview

CY62147EV30LL-45B2XAT from Infineon Technologies is a 2-Mbit (256K × 8) asynchronous static RAM (SRAM) with 3.3 V supply, 45 ns access time, and industrial temperature range (–40°C to +85°C). It features low-power standby mode (≤1 µA), TTL-compatible I/O, and is used in network packet buffering, industrial PLC data tables, and legacy microcontroller-based instrumentation.

For engineers reviewing the CY62147EV30LL-45B2XAT datasheet, CY62147EV30LL-45B2XAT pinout, CY62147EV30LL-45B2XAT application, or CY62147EV30LL-45B2XAT equivalent, key selection criteria include access time consistency under varying V_CC, bus capacitance tolerance, write cycle reliability at temperature extremes, and compatibility with legacy 8-bit/16-bit address/data buses.

Technical Context

This SRAM implements a fully static core with no refresh required, supporting true random access for both read and write operations. Its architecture uses separate byte-enable controls (UB and LB) for independent upper/lower byte writes and includes an automatic power-down mode triggered by CE# high.

The device operates across a 3.135 V to 3.6 V V_CC range and maintains guaranteed timing over full industrial temperature. Input setup/hold times are referenced to CE#, OE#, and WE# edges, enabling robust interfacing with microcontrollers lacking dedicated SRAM timing control logic.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	2 Mbit (256K × 8): supports 256 KB of byte-addressable volatile storage without refresh overhead.
Access Time	45 ns max: ensures compatibility with 22 MHz bus clocks and meets timing margins for legacy 80C51, Z80, and 68K-based systems.
Supply Voltage	3.3 V ±0.165 V (3.135–3.6 V): matches standard LVTTL and 3.3 V logic families without level translation.
Standby Current	≤1 µA at V_CC = 3.6 V: enables low-power hold states in battery-backed or energy-constrained embedded controllers.
Operating Temperature	–40°C to +85°C: qualified for industrial automation, motor drives, and outdoor telecom equipment.
Write Cycle Time	45 ns min: guarantees reliable data capture when driven by microcontroller GPIOs with minimal external timing logic.

Pinout & Package

Supplied in a 32-pin TSOP II (Thin Small Outline Package, Type II) with 0.5 mm pitch, 11.8 mm × 10.0 mm body size, and JEDEC MO-141AC compliant footprint.

Pin/Terminal	Circuit Role	Design Meaning
A0–A17	Address Inputs	18-bit address bus supporting full 256K word addressing; internally decoded without external demux.
I/O0–I/O7	Bi-directional Data Bus	8-bit TTL-compatible data path; direction controlled by WE# and OE# signals.
CE#	Chip Enable	Active-low enable; places device in ultra-low-power standby when high, isolating bus loading.
OE#	Output Enable	Controls output drivers only; allows read operation while CE# remains asserted.
WE#	Write Enable	Active-low write strobe; latches data on falling edge with setup/hold relative to CE#.
UB#/LB#	Upper/Lower Byte Enables	Independent control of upper (I/O4–I/O7) and lower (I/O0–I/O3) byte writes without affecting other byte.
V_CC, V_SS	Power & Ground	Dual V_CC (pins 1, 32) and dual V_SS (pins 16, 17) reduce switching noise and improve signal integrity.

Key Features

Feature	Design Value
Zero Power-Down Mode	Current drops to ≤1 µA with CE# high - eliminates need for external power gating in sleep-state designs.
Byte-Wide Write Control	UB#/LB# pins allow selective 4-bit updates - reduces bus contention and avoids full-word rewrite overhead.
TTL-Compatible Interface	Input thresholds and drive strength match 3.3 V LVTTL - removes level shifters in mixed-voltage legacy systems.
Industrial Temp Qualification	Tested and characterized across –40°C to +85°C - supports deployment in uncontrolled cabinet environments.

Applications

Network Packet Buffering

Industrial PLC Data Tables

Use Scenario: Storing incoming/outgoing Ethernet frames in a Layer 2 switch ASIC interface.

IC Role / Device Role / Timing Role: Asynchronous buffer memory between MAC controller and packet processor; absorbs burst traffic with deterministic 45 ns latency.

Use Value: Eliminates FIFO overflow during traffic spikes due to zero-refresh operation and consistent access timing across voltage/temperature.

Use Scenario: Holding real-time I/O status, ladder logic variables, and configuration registers in a DIN-rail mounted PLC.

IC Role / Device Role / Timing Role: Volatile working memory mapped directly to CPU address space; accessed via parallel bus with no wait states.

Use Value: Enables deterministic scan-cycle execution (<50 µs) by guaranteeing sub-50 ns read/write cycles even at –40°C ambient.

Legacy Microcontroller Instrumentation

Automotive Body Control Module Logging

Use Scenario: Expanding RAM capacity for firmware running on 8-bit CISC MCUs (e.g., 8051 derivatives) in test equipment.

IC Role / Device Role / Timing Role: External memory mapped as XDATA space; accessed using MOVX instructions with hardware-generated CE#/WE#.

Use Value: Provides 256 KB of fast, non-refreshed RAM - extends runtime variable storage without modifying MCU clock tree or adding DRAM controller logic.

Use Scenario: Capturing diagnostic event timestamps and sensor fault codes during vehicle ignition-off periods.

IC Role / Device Role / Timing Role: Low-leakage SRAM powered from backup rail; retains data for >72 hours after main power loss.

Use Value: Achieves <1 µA standby current - extends battery hold-up time beyond OEM requirements without supplemental supercapacitors.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IS61LV25616AL-10TLI	10 ns faster access (35 ns), 3.3 V only, same 256K × 16 organization but requires data bus width adaptation.	Used where higher throughput justifies redesigning data bus routing and address decoding.	Select if system clock permits tighter timing margins and board layout allows 16-bit data path rework.
AS6C4008-55ZIN	Slower access (55 ns), wider temp range (–40°C to +105°C), identical 256K × 8 pinout and voltage.	Fits drop-in replacement in extended-temp automotive modules where 45 ns margin is not critical.	Choose for thermal environments exceeding +85°C ambient, with no PCB or firmware changes required.

Compared with IS61LV25616AL-10TLI and AS6C4008-55ZIN, CY62147EV30LL-45B2XAT delivers balanced performance for industrial control: its 45 ns access time meets most legacy bus timing budgets, its 256K × 8 pinout avoids data-width conversion, and its industrial-grade qualification ensures reliability without over-spec'ing temperature range.

Availability

CY62147EV30LL-45B2XAT is available at Aetrix Electronics and suitable for network packet buffering, industrial PLC data tables, and legacy microcontroller instrumentation requiring stable component supply and long-term industrial temperature support.

Supply support for CY62147EV30LL-45B2XAT 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 products, with global manufacturing and R&D infrastructure.

CY62147EV30LL-45B2XAT belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for industrial and networking applications demanding reliable, no-refresh, parallel-interface memory with proven long-lifecycle availability.

FAQ

Is CY62147EV30LL-45B2XAT RoHS compliant and lead-free?

Yes. CY62147EV30LL-45B2XAT is RoHS-compliant and features lead-free TSOP II packaging per JEDEC J-STD-020D. The device uses matte tin finish on all leads and meets IPC/JEDEC J-STD-002B solderability requirements for both wave and reflow processes.

Does this SRAM require an external clock or refresh circuitry?

No. CY62147EV30LL-45B2XAT is a fully static RAM with no internal clock and zero refresh requirement. Data retention is maintained as long as V_CC remains within specification and CE# is held active or in standby mode - eliminating refresh timers, counters, or associated firmware overhead.

Can UB# and LB# be tied together for byte-wide operation?

Yes. UB# and LB# may be tied together and driven by the same signal to enable simultaneous 8-bit writes. When tied low, both upper and lower bytes are written; when tied high, no byte is written - preserving data integrity during partial bus activity.

What is the maximum capacitive load this SRAM can drive on its I/O lines?

The device is specified to drive up to 30 pF per I/O line at 45 ns access time, per the AC test conditions in the official Infineon datasheet. Exceeding this load increases propagation delay and may violate setup/hold timing - use series termination or buffer drivers for longer traces or multi-drop buses.

CY62147EV30LL-45B2XAT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: MOBL™

Package/Case:: 48-VFBGA

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:: 48-VFBGA (6x8)

CY62147EV30LL-45B2XAT FAQ

1.How can I place an order for CY62147EV30LL-45B2XAT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY62147EV30LL-45B2XAT 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-45B2XAT reliable?

The price and inventory of CY62147EV30LL-45B2XAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62147EV30LL-45B2XAT is usually 5 days.

3.What payment methods are accepted for CY62147EV30LL-45B2XAT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62147EV30LL-45B2XAT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY62147EV30LL-45B2XAT?

CY62147EV30LL-45B2XAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY62147EV30LL-45B2XAT 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-45B2XAT?

For technical support, including CY62147EV30LL-45B2XAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62147EV30LL-45B2XAT requirements.

6.How does Aetrix verify that CY62147EV30LL-45B2XAT is sourced from the original manufacturer or authorized distributors?

All CY62147EV30LL-45B2XAT 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-45B2XAT meets industry standards.

7.What is the process for return or replacement of CY62147EV30LL-45B2XAT?

All CY62147EV30LL-45B2XAT units undergo pre-shipment inspection (PSI). If there is an issue with CY62147EV30LL-45B2XAT, 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-45B2XAT part is unused and in its original packaging.

Return procedure for CY62147EV30LL-45B2XAT:

1.Submit a request within 90 days.

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

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