Infineon Technologies CY7C1041GN-10ZSXIT

Overview

CY7C1041GN-10ZSXIT from Infineon Technologies (formerly Cypress) is a 4-Mbit (256K × 16) asynchronous CMOS static RAM with 10 ns access time, TTL-compatible I/Os, 1.65–2.2 V / 2.2–3.6 V / 4.5–5.5 V multi-voltage operation, and 1.0-V data retention capability. It serves as high-speed on-board memory in industrial control modules, legacy embedded systems, and FPGA co-processor buffers requiring deterministic read/write timing without refresh.

For engineers reviewing the CY7C1041GN-10ZSXIT datasheet, CY7C1041GN-10ZSXIT pinout, CY7C1041GN-10ZSXIT application, or CY7C1041GN-10ZSXIT equivalent, key selection criteria include its triple-voltage support, byte-enable-controlled 16-bit parallel interface, 6 mA typical standby current at 5 V, and VFBGA-48 package compatibility with space-constrained PCB layouts.

Technical Context

This SRAM implements a fully decoded 18-bit address bus (A0–A17) for 256K-word addressing and dual byte-enable logic (BHE/BLE) to independently control upper (I/O8–I/O15) and lower (I/O0–I/O7) 8-bit lanes during write operations. Read access requires CE and OE asserted low, while write requires CE and WE low - all control inputs are active-low and TTL-compatible.

It supports three distinct VCC operating ranges with corresponding speed grades: 10 ns at 2.2–3.6 V and 4.5–5.5 V, and 15 ns at 1.65–2.2 V. Data retention operates down to 1.0 V with automatic CE-driven power-down mode (ISB2 = 6 mA typ), and all I/Os enter high-impedance state when CE is high or OE/BHE/BLE are deasserted.

Key Specifications

Pinout & Package

The CY7C1041GN-10ZSXIT is packaged in a 48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) measuring 6 mm × 8 mm × 1.0 mm, JEDEC-compliant with package ID BVXI (or BVJXI, differing only in I/O ball swap between upper/lower bytes).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar static RAM applications.

Compared with AS6C4008-10TIN and IS61LV25616AL-10TLI, CY7C1041GN-10ZSXIT uniquely delivers triple-voltage flexibility, byte-selectable writes, and superior thermal performance in VFBGA - making it optimal for multi-generation industrial hardware consolidation.

Availability

CY7C1041GN-10ZSXIT is available at Aetrix Electronics and suitable for industrial PLC I/O modules, FPGA configuration buffers, legacy medical data loggers, and automotive body control units requiring stable component supply across long-lifecycle programs.

Supply support for CY7C1041GN-10ZSXIT 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, automotive ICs, and memory solutions, with global R&D and manufacturing infrastructure.

CY7C1041GN belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for high-reliability, multi-voltage embedded systems where deterministic timing, low-power standby, and long-term supply continuity are critical.

FAQ

What voltage ranges does CY7C1041GN-10ZSXIT support, and how does that affect system design?

CY7C1041GN-10ZSXIT supports three non-overlapping VCC ranges: 1.65–2.2 V, 2.2–3.6 V, and 4.5–5.5 V. This allows one BOM item to serve 1.8 V, 3.3 V, and 5 V system generations without redesign. Each range has guaranteed 10 ns or 15 ns access time, and input thresholds scale automatically - eliminating external level shifters in mixed-rail boards.

How does the byte-enable functionality (BHE/BLE) improve system-level reliability?

BHE and BLE enable independent 8-bit writes to upper and lower data bytes without reading-modify-write cycles. In firmware update or register-mapped peripheral scenarios, this prevents unintended corruption of adjacent byte fields - especially critical in safety-critical industrial and automotive applications where atomicity of partial writes is mandated.

Is CY7C1041GN-10ZSXIT pin-compatible with earlier CY7C1041 series variants?

Yes - CY7C1041GN-10ZSXIT shares identical pinout and function mapping with CY7C1041GN-10ZSXI and CY7C1041GN-10VXI in the same 48-ball VFBGA package. The -10ZSXIT suffix denotes tape-and-reel packaging and extended temperature grade (–40 °C to +85 °C), with no electrical or mechanical differences affecting PCB layout or firmware.

What thermal derating guidance applies when operating at 10 ns speed in industrial environments?

At 10 ns access time and 5 V VCC, junction temperature must remain ≤125 °C. With θJA = 31.35 °C/W on a 4-layer board, maximum allowable ambient is ~95 °C assuming 38 mA ICC. For sealed enclosures above 85 °C ambient, reduce VCC to 3.3 V (where tAA remains 10 ns) to cut power dissipation by ~45%, extending thermal margin without sacrificing performance.