Infineon Technologies CY62148G-45SXI

Overview

CY62148G-45SXI from Infineon is a 4-MB MoBL™ ultra-low-power SRAM with embedded single-bit error correction (ECC), organized as 512K words × 8 bits, operating at 45 ns access time across 2.2 V–3.6 V supply, and packaged in a 32-pin SOIC. It serves as a high-reliability data buffer in battery-powered industrial controllers requiring continuous data integrity under voltage fluctuations.

For engineers reviewing the CY62148G-45SXI datasheet, CY62148G-45SXI pinout, CY62148G-45SXI application, or CY62148G-45SXI equivalent, key selection criteria include ECC-enabled data retention at 1.0 V, standby current as low as 3.5 µA (typ), and multi-voltage compatibility spanning 2.2–3.6 V for mixed-supply system integration.

Technical Context

The CY62148G-45SXI implements a synchronous CMOS SRAM core with dedicated ECC encoder/decoder logic that detects and corrects single-bit errors on-the-fly during read operations-without automatic write-back. Its address decoding supports full 19-bit addressing (A0–A18) for 512K-word access.

Control logic uses three active-low enables: /CE for chip select, /OE for output gating, and /WE for write strobing. All I/Os (I/O0–I/O7) enter high-impedance state when /CE is HIGH or /OE is deasserted, ensuring clean bus sharing in multi-device systems.

Key Specifications

Pinout & Package

Package: 32-pin SOIC (Small Outline Integrated Circuit), JEDEC MS-012AC, body width 7.5 mm, lead pitch 1.27 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-power ECC SRAM applications.

Compared with CY62148EV-45SXI, the CY62148G-45SXI offers identical timing and ECC functionality but lacks automotive qualification-making it optimal for industrial and medical use cases within –40°C to +85°C. Versus IS61WV5128EDBLL-45NLI, it delivers hardware ECC with no firmware overhead, at slightly higher unit cost but significantly reduced validation effort.

Availability

CY62148G-45SXI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical wearable data loggers, smart meter firmware caches, and railway signaling controller RAM requiring stable component supply across extended product lifecycles.

Supply support for CY62148G-45SXI 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 leader specializing in power management, sensing, and security solutions for industrial, automotive, and IoT applications.

The CY62148G belongs to Infineon's MoBL™ (Mobile Bitline) ultra-low-power SRAM product line, engineered specifically for battery-operated and energy-constrained systems demanding high data integrity without sacrificing speed or voltage flexibility.

FAQ

Does CY62148G-45SXI support automatic error correction write-back?

No. The device performs single-bit error correction during read operations only, and corrected data is presented on the I/O lines-but no automatic write-back to memory occurs. System firmware must handle any persistent error logging or recovery actions independently.

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

The CY62148G-45SXI does not require a clock signal-it is an asynchronous SRAM. Maximum sustained operation is governed by its 45 ns access time, enabling reliable read/write cycles up to 22.22 MHz when interfaced with appropriate address setup/hold timing.

Can CY62148G-45SXI operate at 1.8 V?

No. This variant (CY62148G-45SXI) is specified for 2.2 V–3.6 V operation only. For 1.65 V–2.2 V operation, the CY62148G18-55SXI variant must be used-its speed grade and voltage range differ and are not interchangeable.

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

Yes. The CY62148G-45SXI uses a Pb-free 32-pin SOIC package compliant with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3), with peak reflow temperature of 260°C.