Infineon Technologies CY7C1061G18-15ZXI

Overview

CY7C1061G18-15ZXI from Infineon Technologies (formerly Cypress) is a 16-Mbit (1M × 16-bit) CMOS static RAM with embedded single-bit error-correcting code (ECC), designed for high-reliability industrial memory subsystems. It operates at 15 ns access time, supports 1.65–2.2 V supply, delivers 90 mA typical active current at 100 MHz, and features TTL-compatible I/O with dedicated ERR output for real-time ECC event indication - deployed in programmable logic controllers and safety-critical data buffers.

For engineers reviewing the CY7C1061G18-15ZXI datasheet, CY7C1061G18-15ZXI pinout, CY7C1061G18-15ZXI application, or CY7C1061G18-15ZXI equivalent, key selection criteria include ECC-enabled data integrity, dual-voltage operation (1.65–2.2 V), TSOP I package compatibility, and ERR pin behavior during single-bit correction cycles.

Technical Context

This SRAM implements on-die Hamming-code ECC logic that detects and corrects single-bit errors during read operations without requiring external circuitry. The ERR pin asserts high only when a correctable error is found and corrected - no automatic write-back occurs, preserving deterministic timing.

It supports both single CE (CE pin only) and dual CE (CE1/CE2) configurations, with byte-level control via BHE/ BLE enabling independent upper/lower 8-bit writes. Address space spans A0–A19 (1 M words), and data retention is guaranteed down to 1.0 V with no refresh required.

Key Specifications

Pinout & Package

Package: 48-pin TSOP I (12 × 18.4 × 1 mm), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AS7C31026B-15TIN and IS61WV102416BLL-15KLI, CY7C1061G18-15ZXI uniquely integrates hardware ECC with deterministic ERR signaling - eliminating external logic, reducing BOM count, and providing traceable error mitigation essential for IEC 61508 and ISO 26262 implementations.

Availability

CY7C1061G18-15ZXI is available at Aetrix Electronics and suitable for industrial PLCs, avionics display subsystems, medical imaging controllers, and safety-rated sensor interfaces requiring stable component supply across extended product lifecycles.

Supply support for CY7C1061G18-15ZXI 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and high-reliability memory solutions.

CY7C1061G18-15ZXI belongs to Infineon's legacy Cypress SRAM portfolio, engineered specifically for mission-critical industrial and aerospace applications demanding hardware-level data integrity and long-term obsolescence support.

FAQ

Does CY7C1061G18-15ZXI support automatic error correction write-back?

No. The device performs single-bit error correction during read cycles and asserts the ERR pin, but does not automatically rewrite the corrected data back to the memory cell. Correction is transparent to the read data path only; any persistent fix requires external firmware action.

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

The ERR pin is an open-drain output that drives LOW when no error is detected and HIGH when a single-bit error is corrected. It must be externally pulled up to VCC via a 4.7 kΩ resistor to ensure proper logic levels and noise margin in industrial environments.

Can CY7C1061G18-15ZXI operate with mixed 1.8 V and 3.3 V I/O interfaces?

No. The device uses a single VCC supply (1.65–2.2 V for this variant) for both core logic and I/O buffers. Its TTL-compatible inputs accept 0–VCC logic thresholds, but all signals must reference the same VCC rail - level shifters are required for true mixed-voltage bus interfacing.

Is the 48-pin TSOP I package (ZXI) lead-free and RoHS compliant?

Yes. The ZXI suffix denotes a lead-free, RoHS-compliant 48-pin TSOP I package with matte tin finish, qualified for industrial temperature range (–40 °C to +85 °C) and compatible with standard reflow profiles per J-STD-020.