Infineon Technologies CY7C1041G18-15BVXIT

Overview

CY7C1041G18-15BVXIT from Infineon Technologies (formerly Cypress) is a 4-Mbit (256K × 16-bit) CMOS static RAM with embedded single-bit error-correcting code (ECC), operating at 15 ns access time over 1.65–2.2 V supply, featuring ERR output pin, TTL-compatible I/Os, and 48-ball VFBGA (6 × 8 × 1.0 mm) package. It serves as fault-tolerant data buffer in industrial control modules requiring ECC-enabled memory integrity.

For engineers reviewing the CY7C1041G18-15BVXIT datasheet, CY7C1041G18-15BVXIT pinout, CY7C1041G18-15BVXIT application, or CY7C1041G18-15BVXIT equivalent, this page delivers verified electrical specs, validated pin functions, real-world use cases for ECC SRAM, and confirmed drop-in alternatives with documented voltage and timing differences.

Technical Context

This SRAM integrates dedicated ECC encoder/decoder logic within the memory array path, enabling real-time single-bit error detection and correction during read cycles without external logic. The ERR pin asserts HIGH only upon successful correction-no automatic write-back occurs, preserving deterministic latency.

It supports byte-level writes via independent BHE (I/O8–I/O15) and BLE (I/O0–I/O7) controls, operates across three V_CC ranges (1.65–2.2 V, 2.2–3.6 V, 4.5–5.5 V), and maintains 1.0-V data retention during standby-critical for low-power industrial systems with intermittent power.

Key Specifications

Pinout & Package

48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA), 6 mm × 8 mm × 1.0 mm body, JEDEC-compliant BVXI package grade. Pin pitch: 0.5 mm. RoHS-compliant, Pb-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV25616EDBLL-10MLI and MT48LC16M16A2P-6A:G, CY7C1041G18-15BVXIT uniquely delivers autonomous single-bit correction with zero software overhead, guaranteed 15 ns latency at 1.8 V, and industrial-grade reliability-making it optimal for fail-operational embedded systems where memory integrity is non-negotiable.

Availability

CY7C1041G18-15BVXIT is available at Aetrix Electronics and suitable for industrial PLC data buffers, railway signaling controllers, medical imaging frame buffers, and avionics flight data recorders requiring stable component supply across extended product lifecycles.

Supply support for CY7C1041G18-15BVXIT 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 MCUs, and reliable memory solutions for mission-critical applications.

CY7C1041G18-15BVXIT belongs to Infineon's legacy Cypress SRAM portfolio, engineered specifically for industrial and transportation systems demanding ECC-enabled data integrity, low-voltage operation, and long-term supply stability.

FAQ

Does CY7C1041G18-15BVXIT support automatic error write-back after correction?

No. The device detects and corrects single-bit errors during read cycles and asserts the ERR pin, but does not perform automatic write-back to the memory array. Host firmware must initiate a separate write cycle if persistent correction is required. This design preserves deterministic access timing and avoids unintended memory modifications.

What is the function of the NC pins in the 48-ball VFBGA package?

NC (No Connect) pins-such as those at locations A1, D1, G1, H1, and H6-are physically present but not bonded to the silicon die. They serve mechanical reinforcement and thermal dissipation roles in the VFBGA structure and must remain unconnected in PCB layout to prevent signal coupling or solder bridging.

Can CY7C1041G18-15BVXIT operate at 3.3 V?

No. This specific variant (suffix "18") is rated only for 1.65–2.2 V operation. For 3.3 V compatibility, select CY7C1041G30-10BVXIT (10 ns, 2.2–3.6 V range). Attempting 3.3 V operation on the "18" version exceeds absolute maximum ratings and risks permanent damage or erratic ECC behavior.

How does the ERR pin behave during uncorrectable multi-bit errors?

The ERR pin remains inactive (LOW) during multi-bit errors. The device lacks multi-bit detection capability; such errors result in corrupted read data without notification. System-level redundancy or external CRC checking is required to detect or mitigate multi-bit failures beyond the ECC coverage scope.