Infineon Technologies CY62146G-45ZSXI

Overview

CY62146G-45ZSXI from Cypress Semiconductor is a 4-Mbit (256K × 16) MoBL® Static RAM with embedded single-bit error-correcting code (ECC), operating at 45 ns access time across 2.2–3.6 V or 4.5–5.5 V supply ranges, featuring ultra-low standby current (max 8.7 µA), TTL-compatible I/Os, and ERR output for real-time ECC event indication. It serves as main memory in industrial controllers requiring data integrity under radiation-prone or long-term operation conditions.

For engineers reviewing the CY62146G-45ZSXI datasheet, CY62146G-45ZSXI pinout, CY62146G-45ZSXI application, or CY62146G-45ZSXI equivalent, key selection criteria include ECC-enabled reliability, dual-voltage support (2.2–3.6 V / 4.5–5.5 V), 45 ns timing, 48-ball VFBGA package, and ERR pin functionality for fault-aware system design.

Technical Context

This SRAM implements on-die ECC encoding/decoding logic that detects and corrects single-bit errors during every read cycle without external intervention. The ERR pin asserts HIGH only when correction occurs, enabling host-level logging or recovery actions.

It supports both single and dual chip enable configurations, byte-level write control via BHE/ BLE, and operates across three distinct V_CC ranges - with guaranteed specs only at 2.2–3.6 V and 4.5–5.5 V. Data retention is maintained down to 1.0 V, independent of full V_CC operation.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV25616EDBLL-10MLI and MT45W8MW16BGX-107 IT:D, CY62146G-45ZSXI delivers integrated, zero-overhead ECC in a simple asynchronous interface - reducing BOM count, firmware complexity, and qualification effort for safety-critical embedded designs.

Availability

CY62146G-45ZSXI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, railway signaling controllers, and avionics data loggers requiring stable component supply across extended product lifecycles.

Supply support for CY62146G-45ZSXI 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 aerospace applications.

CY62146G belongs to the MoBL® (Mobile Bitline) SRAM product line, engineered specifically for low-power, ECC-enhanced memory in mission-critical embedded systems where data integrity cannot be compromised.

FAQ

Does CY62146G-45ZSXI support automatic error correction without host intervention?

Yes. The device performs single-bit error detection and correction autonomously during every read cycle using on-die ECC logic. No external controller action is required - corrected data appears on I/O lines, and the ERR pin signals the event. This is hardware-level, cycle-accurate correction with no latency penalty beyond standard access time.

What is the function of the ERR pin, and how should it be interfaced?

The ERR pin is an open-drain output that asserts HIGH whenever a single-bit error is detected and corrected during a read. It requires an external pull-up resistor (typically 4.7 kΩ to V_CC) and can be monitored by a GPIO or interrupt input. It does not indicate uncorrectable multi-bit errors - those result in undefined data and require system-level handling.

Can CY62146G-45ZSXI operate at 3.3 V, and are specifications guaranteed in that range?

Yes - the 2.2 V–3.6 V V_CC range includes 3.3 V operation, and all AC/DC specifications (including 45 ns access time and 8.7 µA max ISB2) are fully guaranteed at 3.3 V. Datasheet notes explicitly confirm guaranteed performance across this entire band, excluding only the 3.6–4.5 V gap.

Is the 48-ball VFBGA package of CY62146G-45ZSXI compatible with standard reflow profiles?

Yes. The package complies with IPC/JEDEC J-STD-020D moisture sensitivity level 3 and supports standard lead-free reflow profiles (peak 260 °C). Its 0.5 mm pitch and 6 mm × 8 mm footprint are supported by mainstream PCB assembly equipment, and thermal resistance (θ_JA = 120 °C/W) ensures reliable operation up to +85 °C ambient.