Infineon Technologies CY62146GE30-45BVXI

Overview

CY62146GE30-45BVXI from Cypress Semiconductor is a 4-Mbit (256K × 16) MoBL® Static RAM with embedded single-bit error-correcting code (ECC), 45 ns access time, 2.2–3.6 V supply range, and ERR output pin for real-time error detection/correction - deployed in industrial-grade memory subsystems for FPGA configuration storage and safety-critical microcontroller data buffers.

For engineers reviewing the CY62146GE30-45BVXI datasheet, CY62146GE30-45BVXI pinout, CY62146GE30-45BVXI application, or CY62146GE30-45BVXI equivalent, key selection criteria include ECC-enabled reliability, dual-voltage operation (2.2–3.6 V), 45 ns timing at full speed, VFBGA-48 package compatibility, and ERR pin behavior during read-cycle correction events.

Technical Context

This SRAM implements a synchronous, byte-selectable memory architecture with dedicated BHE/ BLE controls for independent upper/lower byte writes, and an active-HIGH ERR output that asserts only during successful single-bit error correction - not detection alone. The ECC logic operates transparently within the read path without requiring external logic or software intervention.

It supports both single CE (CE pin only) and dual CE (CE1/CE2) addressing modes, with all I/Os entering high-impedance state when deselected. Data retention is guaranteed down to 1.0 V, enabling low-power suspend modes while preserving memory contents across brown-out conditions.

Key Specifications

Pinout & Package

Package: 48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA), 6 mm × 8 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV25616BLL-45NLI and MT45W8MW16BGX-45IT:D, CY62146GE30-45BVXI uniquely delivers transparent, zero-overhead ECC correction in a simple parallel SRAM interface - making it optimal for safety-aware embedded systems where deterministic latency and minimal software footprint are mandatory.

Availability

CY62146GE30-45BVXI is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, automotive ADAS sensor hubs, and FPGA configuration storage requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY62146GE30-45BVXI 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 IoT applications, with emphasis on low-power, robust interface IP, and functional safety compliance.

CY62146GE belongs to the MoBL® (Mobile Bit-Like) SRAM product line - engineered specifically for battery-sensitive and mission-critical embedded systems needing ECC-enhanced data integrity without performance penalty or design complexity.

FAQ

Does CY62146GE30-45BVXI support automatic write-back after error correction?

No. The device performs single-bit error correction transparently during read cycles but does not automatically rewrite the corrected data back to the memory array. The corrected value appears on I/O lines, and ERR asserts, but the original corrupted bit remains unmodified in the array unless explicitly rewritten by the host system.

What is the function of the ERR pin, and when does it assert?

The ERR pin is an open-drain output that goes HIGH only when a single-bit error is both detected and successfully corrected during a read operation. It does not assert for multi-bit errors or uncorrectable events, and remains inactive during normal (error-free) reads or writes.

Can CY62146GE30-45BVXI operate at 1.8 V?

No. This variant (CY62146GE30-45BVXI) is specified for 2.2 V to 3.6 V operation only. The 1.65–2.2 V range applies only to the "18" speed grade (e.g., CY62146GE18), not the "30" grade. Operating below 2.2 V violates datasheet specifications and risks timing violations or ECC failure.

Is the VFBGA-48 package lead-free and RoHS-compliant?

Yes. The "X" suffix in CY62146GE30-45BVXI denotes lead-free (Pb-free), RoHS-compliant packaging per JEDEC J-STD-020 moisture sensitivity level 3, with peak reflow temperature of 260 °C and compatible with standard SnAgCu solder profiles.