Infineon Technologies CY7C1049GE30-10VXI

Overview

CY7C1049GE30-10VXI from Cypress Semiconductor is a 4-Mbit (512K × 8) CMOS static RAM with embedded single-bit error-correcting code (ECC), TTL-compatible I/O, and dedicated ERR output pin for real-time error detection/correction. It operates across three voltage ranges (2.2–3.6 V), delivers 10 ns access time (tAA), and draws 38 mA typical active current - deployed in industrial control modules requiring fault-resilient memory for firmware storage and runtime data buffering.

For engineers reviewing the CY7C1049GE30-10VXI datasheet, CY7C1049GE30-10VXI pinout, CY7C1049GE30-10VXI application, or CY7C1049GE30-10VXI equivalent, key selection criteria include ECC-enabled reliability, multi-voltage support (2.2–3.6 V), 10 ns timing compliance, and TSOP II package compatibility with legacy SRAM footprints in safety-critical embedded systems.

Technical Context

This device implements on-die ECC encoding/decoding logic that detects and corrects single-bit errors during read cycles, signaled via the open-drain ERR pin (active HIGH). The memory array is organized as 512K words × 8 bits, with full address decoding (A0–A18) and standard asynchronous control (CE, OE, WE).

It supports automatic CE-controlled power-down modes: ISB2 = 6 mA typical standby current at VCC = 3 V, and retains data at 1.0 V. Input/output levels are TTL-compatible across all supported VCC ranges, eliminating level-shifter requirements in mixed-voltage designs.

Key Specifications

Pinout & Package

Package: 44-pin Thin Small Outline Package Type II (TSOP II), RoHS-compliant, surface-mountable with 0.8 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AS7C34098B-10TIN and IS61WV5128BLL-10MLI, CY7C1049GE30-10VXI uniquely integrates hardware ECC with visible error reporting, reducing system-level validation effort and enabling compliance with SIL-2 and DAL-B requirements without architectural redesign.

Availability

CY7C1049GE30-10VXI is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, and railway signaling controllers requiring stable component supply, long-term lifecycle assurance, and guaranteed ECC functionality.

Supply support for CY7C1049GE30-10VXI 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) is a global leader in high-performance, reliable semiconductor solutions for industrial, automotive, and IoT applications.

CY7C1049GE belongs to Cypress's industrial SRAM portfolio, designed specifically for mission-critical embedded systems demanding hardware-based data integrity, multi-voltage flexibility, and extended temperature operation.

FAQ

Does CY7C1049GE30-10VXI support automatic error correction without host intervention?

Yes. The device performs single-bit error correction autonomously during every read cycle using on-die ECC logic. When a correctable error is detected, the ERR pin asserts HIGH, but data is delivered error-free to the I/O bus without CPU involvement or timing penalty.

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

The ERR pin is an open-drain output that goes HIGH when a single-bit error is detected and corrected. It requires an external pull-up resistor (typically 4.7 kΩ to VCC) to generate a valid logic HIGH signal. No internal pull-up is provided, and the pin remains inactive (Hi-Z) during normal reads or writes.

Can CY7C1049GE30-10VXI operate at 2.5 V, and what performance is guaranteed?

Yes. The device is fully specified for 2.2–3.6 V operation. At 2.5 V, tAA remains guaranteed at ≤10 ns, ICC is ≤45 mA max, and ISB2 is ≤8 mA max - all tested per AC/DC electrical specifications in the official datasheet (001-95412 Rev. *F).

Is the 44-pin TSOP II package of CY7C1049GE30-10VXI pin-compatible with non-ECC variants like CY7C1049G-10VXI?

No. While both use 44-pin TSOP II, CY7C1049GE30-10VXI repurposes pin 25 as ERR output, whereas CY7C1049G-10VXI leaves pin 25 as NC. Direct substitution requires PCB layout revision to accommodate the ERR signal routing and pull-up.