Infineon Technologies CY7C1041GE-10ZSXI

Overview

CY7C1041GE-10ZSXI from Infineon Technologies (formerly Cypress) is a 4-Mbit (256K × 16-bit) CMOS static RAM with embedded single-bit error-correcting code (ECC), TTL-compatible I/O, 10 ns access time, and dedicated ERR output pin for real-time error detection/correction - deployed in industrial control memory buffers requiring data integrity under EMI-prone conditions.

For engineers reviewing the CY7C1041GE-10ZSXI datasheet, CY7C1041GE-10ZSXI pinout, CY7C1041GE-10ZSXI application, or CY7C1041GE-10ZSXI equivalent, key selection criteria include ECC-enabled read reliability, multi-voltage support (1.65–2.2 V / 2.2–3.6 V / 4.5–5.5 V), 44-pin TSOP II package compatibility, and ERR pin behavior during single-bit correction events.

Technical Context

This SRAM implements on-die ECC encoding/decoding logic that detects and corrects single-bit errors during read cycles without external circuitry; the ERR pin asserts HIGH only when correction occurs, enabling system-level fault logging. It supports byte-wide writes via independent BHE/BLE controls for upper/lower 8-bit lanes.

Operation spans three distinct V_CC ranges with corresponding speed grades: 10 ns at 2.2–3.6 V and 4.5–5.5 V, 15 ns at 1.65–2.2 V. Data retention is guaranteed at 1.0 V, and all I/Os enter high-impedance state when CE is HIGH or OE/BHE/BLE are deasserted.

Key Specifications

Pinout & Package

Package: 44-pin TSOP II (Type II, 400 mil width), RoHS-compliant, surface-mount, JEDEC MO-141AC standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV25616EDBLL-10MLI and AS6C4008-10TIN, CY7C1041GE-10ZSXI uniquely delivers hardware-accelerated ECC with immediate ERR assertion, multi-range voltage support, and 16-bit bus alignment - critical for deterministic real-time systems where latency and voltage flexibility outweigh package footprint constraints.

Availability

CY7C1041GE-10ZSXI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical imaging frame stores, and railway signaling controllers requiring stable component supply across extended temperature and voltage ranges.

Supply support for CY7C1041GE-10ZSXI 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.

CY7C1041GE-10ZSXI belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for high-reliability embedded systems demanding hardware ECC, multi-voltage interoperability, and industrial-grade thermal robustness.

FAQ

Does CY7C1041GE-10ZSXI support automatic error correction during write operations?

No. The device performs single-bit error correction only during read cycles. Writes do not trigger ECC encoding or correction; the ERR pin remains inactive during write operations. Error detection and correction occur exclusively on data retrieved from memory cells, as confirmed in the functional description and truth table of datasheet Rev. *N.

What is the function of the ERR pin during a corrected read cycle?

The ERR pin asserts HIGH (open-drain, requires external pull-up) for the duration of the read cycle when a single-bit error is detected and corrected in the accessed word. It does not latch or persist beyond the active read window, and it remains inactive for uncorrectable multi-bit errors or error-free reads.

Can CY7C1041GE-10ZSXI operate reliably at 1.8 V with 10 ns access time?

No. At 1.65–2.2 V, the device is rated for 15 ns access time (CY7C1041GE-15ZSXI). The -10 suffix denotes guaranteed 10 ns performance only in the 2.2–3.6 V and 4.5–5.5 V ranges. Using -10ZSXI at 1.8 V violates timing specifications and may result in read failures.

Is the 44-pin TSOP II package of CY7C1041GE-10ZSXI compatible with CY7C1041G-10ZSXI footprints?

Yes, pin-for-pin compatible in 44-pin TSOP II configuration. Both share identical pinout, including /CE, /OE, /WE, /BHE, /BLE, A[0:17], I/O[0:15], and VCC/VSS placements. The sole difference is the ERR pin (pin 21) on CY7C1041GE versus NC on CY7C1041G - unused pins may be left floating or tied low per design.