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

Infineon Technologies CY62148BLL-70SC

Name: CY62148BLL-70SC
Brand: Infineon Technologies
SKU: CY62148BLL-70SC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY62148BLL-70SC

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 32-SOIC (0.445", 11.30mm Width)

Datasheet:: CY62148BLL-70SC.pdf

Description:: IC SRAM 4MBIT PARALLEL 32SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,333

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Product details

Overview

CY62148BLL-70SC from Cypress Semiconductor is a 4-Mbit (512K × 8) CMOS static RAM with 70 ns access time, 4.5–5.5 V supply operation, and automatic CE-controlled power-down reducing standby current to 4 µA. It features TTL-compatible I/O, three-state drivers, and supports memory expansion via active-low CE and OE. Used in industrial control panels requiring fast, low-power volatile storage with deterministic timing.

For engineers reviewing the CY62148BLL-70SC datasheet, CY62148BLL-70SC pinout, CY62148BLL-70SC application, or CY62148BLL-70SC equivalent, key selection criteria include access time consistency at 70 ns, CE-driven power-down behavior, SOIC-32 package compatibility, and 512K × 8 data width for embedded buffer memory design.

Technical Context

The CY62148BLL-70SC implements a full CMOS SRAM core with dual-decode architecture (row/column), integrated sense amplifiers, and input/output buffers with controlled slew rates. Its automatic power-down activates when CE is HIGH, reducing ICC to ≤4 µA under CMOS input conditions.

Read operations require CE and OE LOW with WE HIGH; write operations require CE and WE LOW while OE may be HIGH or LOW. All eight I/O pins enter high-impedance state during deselection, output disable, or write cycles-ensuring clean bus sharing without external isolation.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	4 Mbit (512K × 8) - provides byte-wide addressing for microcontroller data buffers without bit-width conversion logic
Access Time	70 ns - guarantees deterministic read latency for real-time firmware execution on 8/16-bit MCUs
VCC Range	4.5 V to 5.5 V - compatible with standard 5 V logic rails and tolerant of ±10% supply variation
Active Current	12.5 mA typical at f_max - enables low-power operation in battery-backed or thermally constrained systems
Standby Current	4 µA typical (CMOS inputs) - supports >1-year retention in energy-harvesting or maintenance-free field devices
Input/Output Voltage	TTL-compatible (V_IL ≤ 0.8 V, V_IH ≥ 2.2 V) - interoperable with legacy 5 V microcontrollers and FPGAs without level shifters
Package	32-lead SOIC (450-mil) - surface-mount compatible with standard reflow profiles and automated optical inspection

Pinout & Package

Package: 32-pin SOIC (450-mil body width), JEDEC MS-012AC compliant, RoHS-compliant lead finish.

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	19-bit address bus supporting full 512K-word decoding; A18 is MSB for linear memory mapping
I/O0–I/O7	Bidirectional Data Bus	True three-state I/Os; high-impedance during CE HIGH, OE HIGH, or WE LOW - eliminates bus contention
CE	Chip Enable	Active-LOW global select; triggers automatic power-down when deasserted - primary power gating signal
OE	Output Enable	Active-LOW read control; decouples output drivers independently of CE - enables shared-bus multiplexing
WE	Write Enable	Active-LOW write strobe; latches data on falling edge synchronized with CE - defines write cycle boundary
VCC	Power Supply	+4.5 V to +5.5 V supply; bypass capacitor required within 10 mm of pin for stable 70 ns timing
GND	Ground Reference	Dual ground pins (pins 16 and 32) reduce switching noise coupling into analog-sensitive applications

Key Features

Feature	Design Value
70 ns Access Time	Guaranteed read latency enables direct interface with 14 MHz Z80 or 20 MHz 8051 derivatives without wait states
Automatic CE Power-Down	Reduces ICC to ≤4 µA without external control logic - simplifies power sequencing in multi-chip modules
TTL-Compatible I/O	Eliminates need for level translators when interfacing with legacy 5 V microcontrollers or CPLDs
Three-State Outputs	Enables direct connection to 8-bit data buses shared with peripherals or other memory devices
SOIC-32 Footprint	Standardized land pattern allows drop-in replacement with other 32-pin 450-mil SRAMs in existing PCB layouts

Applications

Industrial PLC Data Buffer

Medical Device Parameter Storage

Use Scenario: Storing real-time sensor calibration tables and runtime configuration in programmable logic controllers operating at 0°C to +70°C.

IC Role / Device Role / Timing Role: Volatile data buffer providing sub-100 ns read/write access for deterministic scan-cycle execution.

Use Value: 70 ns access time ensures no CPU wait states; 4 µA standby current extends backup battery life beyond 18 months.

Use Scenario: Holding patient-specific therapy parameters in portable infusion pumps with battery backup during AC power loss.

IC Role / Device Role / Timing Role: Non-blocking memory interface for ARM Cortex-M0+ MCU executing safety-critical control loops.

Use Value: Automatic CE power-down cuts leakage by >99% during idle periods, preserving charge in coin-cell backup circuits.

Test Equipment Firmware Cache

Avionics Display Controller Buffer

Use Scenario: Caching waveform generation instructions and measurement lookup tables in handheld oscilloscopes with FPGA-based front ends.

IC Role / Device Role / Timing Role: High-speed instruction/data scratchpad accessible synchronously with FPGA clock domains.

Use Value: 512K × 8 organization matches common 16-bit instruction word alignment; SOIC-32 eases manual rework during prototype validation.

Use Scenario: Frame buffer for monochrome LCD displays in certified cockpit display units requiring DO-254 compliance.

IC Role / Device Role / Timing Role: Deterministic-access pixel data store synchronized to display controller's pixel clock.

Use Value: TTL-compatible I/O eliminates level-shifter BOM cost; 70 ns timing margin supports 12.5 MHz pixel clock with setup/hold safety.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ISSI IS62WV5128BLL-70NLI	Same 512K × 8 organization, 70 ns speed, but uses 3.3 V core with 5 V tolerant I/O; standby current 2 µA	Requires level translation if interfacing with pure 5 V systems; lower standby suits ultra-low-power designs	Select when migrating to mixed-voltage architectures or extending battery life beyond 2 years
ON Semiconductor NVSRAM NVTFS256K8PLFTBG	Nonvolatile SRAM with integrated EEPROM backup; 70 ns access, but higher active current (25 mA) and larger SOIC-32 footprint	Eliminates external battery and backup circuitry; suited for data logging where power loss must not corrupt settings	Select when data retention during uncontrolled power loss is mandatory, accepting higher cost and active power

Compared with IS62WV5128BLL-70NLI and NVTFS256K8PLFTBG, the CY62148BLL-70SC offers lowest system-level BOM count for pure 5 V designs, guaranteed 70 ns timing across commercial temperature range, and seamless integration with legacy microcontrollers lacking 3.3 V I/O support.

Availability

CY62148BLL-70SC is available at Aetrix Electronics and suitable for industrial PLC data buffering, medical device parameter storage, and test equipment firmware caching requiring stable component supply and long-term obsolescence management.

Supply support for CY62148BLL-70SC 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability memory and programmable solutions for industrial, automotive, and consumer applications.

The MoBL™ (Mobile Bit-Like) SRAM product line targets low-power, high-speed volatile memory needs in space-constrained embedded systems where deterministic timing and minimal standby leakage are critical.

FAQ

What is the maximum clock frequency supported for read/write cycles?

The CY62148BLL-70SC does not use a clock signal; it is an asynchronous SRAM. Its 70 ns access time corresponds to a maximum effective cycle rate of ~14.3 MHz for consecutive random accesses. Timing is governed by tRC (70 ns), tWC (70 ns), and related setup/hold parameters-not a system clock.

Can this SRAM retain data during brief power interruptions?

No. The CY62148BLL-70SC is volatile memory and requires continuous VCC ≥ 2.0 V for data retention. For power-loss resilience, external backup circuitry (e.g., supercapacitor + diode) or nonvolatile alternatives like nvSRAM must be used.

Is the SOIC-32 package lead-free and RoHS-compliant?

Yes. The CY62148BLL-70SC in SOIC-32 packaging (ordering code suffix -SC) uses matte tin lead finish and meets RoHS Directive 2011/65/EU requirements, including exemption 7a for lead in high-melting-temperature solder alloys.

How does the automatic power-down feature interact with OE and WE during standby?

Power-down is triggered solely by CE HIGH, regardless of OE or WE state. When CE is HIGH, ICC drops to ≤4 µA (CMOS inputs) even if OE or WE are actively driven. OE and WE only affect I/O state - not power consumption - during CE HIGH.

CY62148BLL-70SC Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: MOBL™

Package/Case:: 32-SOIC (0.445", 11.30mm Width)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Asynchronous

Memory Size:: 4Mbit

Memory Organization:: 512K x 8

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 70ns

Access Time:: 70 ns

Voltage - Supply:: 4.5V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 32-SOIC

CY62148BLL-70SC FAQ

1.How can I place an order for CY62148BLL-70SC through Aetrix?

Please submit a Request for Quotation (RFQ) for CY62148BLL-70SC 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 CY62148BLL-70SC reliable?

The price and inventory of CY62148BLL-70SC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62148BLL-70SC is usually 5 days.

3.What payment methods are accepted for CY62148BLL-70SC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62148BLL-70SC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY62148BLL-70SC?

CY62148BLL-70SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY62148BLL-70SC 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 CY62148BLL-70SC?

For technical support, including CY62148BLL-70SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62148BLL-70SC requirements.

6.How does Aetrix verify that CY62148BLL-70SC is sourced from the original manufacturer or authorized distributors?

All CY62148BLL-70SC 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 CY62148BLL-70SC meets industry standards.

7.What is the process for return or replacement of CY62148BLL-70SC?

All CY62148BLL-70SC units undergo pre-shipment inspection (PSI). If there is an issue with CY62148BLL-70SC, 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 CY62148BLL-70SC part is unused and in its original packaging.

Return procedure for CY62148BLL-70SC:

1.Submit a request within 90 days.

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

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