Infineon Technologies CY7C1051H30-10ZSXI

Overview

CY7C1051H30-10ZSXI from Infineon Technologies (formerly Cypress) is an 8-Mbit (512K × 16-bit) CMOS static RAM with embedded single-bit error-correcting code (ECC), TTL-compatible I/O, 10 ns access time, and operation across 2.2–3.6 V. It serves as a high-reliability data buffer in industrial control modules requiring ECC-protected memory for real-time fault mitigation.

For engineers reviewing the CY7C1051H30-10ZSXI datasheet, CY7C1051H30-10ZSXI pinout, CY7C1051H30-10ZSXI application, or CY7C1051H30-10ZSXI equivalent, key selection criteria include tAA = 10 ns timing, ISB2 = 20 mA standby current, ECC correction capability without automatic write-back, and TSOP II package compatibility with legacy PCB layouts.

Technical Context

The device implements on-die ECC encoding/decoding logic that detects and corrects single-bit errors during read operations, but does not perform automatic write-back upon correction-error handling requires external firmware coordination. Its dual-byte enable architecture (BHE/BLE) enables independent upper- and lower-byte writes to the 16-bit data bus without full-word access overhead.

It operates in three power states: active (ICC = 90 mA typical at 100 MHz), automatic CE power-down (ISB2 = 20 mA), and 1.0-V data retention mode (ICCDR ≤ 30 mA). All I/Os enter high-impedance when CE is HIGH or OE/BHE/BLE are deasserted, supporting bus sharing in multi-device systems.

Key Specifications

Pinout & Package

44-pin TSOP II (Thin Small Outline Package, Type II) with 0.8 mm pitch, 12.0 mm × 20.0 mm body, and standard JEDEC MO-141AC footprint. Pin 1 marked by notch or dot; pins arranged in two rows (22 per side).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-reliability SRAM applications.

Compared with AS7C35128P-10TIN and IS61WV51216BLL-10MLI, CY7C1051H30-10ZSXI uniquely delivers integrated ECC in a drop-in TSOP II package-reducing design risk for industrial and safety-critical applications where bit-error resilience cannot be deferred to software.

Availability

CY7C1051H30-10ZSXI is available at Aetrix Electronics and suitable for industrial PLC data buffers, medical imaging frame stores, and railway signaling event loggers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1051H30-10ZSXI 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and memory solutions for industrial and mission-critical systems.

This device belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for high-integrity embedded applications where data reliability, predictable timing, and long-term supply stability are non-negotiable.

FAQ

Does CY7C1051H30-10ZSXI support automatic error correction write-back?

No. The device detects and corrects single-bit errors during read operations, but does not automatically rewrite corrected data to memory. External firmware must initiate a write cycle if persistent correction is required. This design avoids unintended write amplification and preserves deterministic timing behavior in real-time systems.

What is the maximum operating frequency supported by CY7C1051H30-10ZSXI?

The device supports up to 100 MHz clock rates in active mode, verified by its ICC = 90 mA typical specification at f = 100 MHz and tAA = 10 ns access time. It does not require external clock input-the timing is asynchronous and governed solely by address and control signal setup/hold relationships.

Can CY7C1051H30-10ZSXI operate at 2.5 V supply voltage?

Yes. Its specified VCC range is 2.2 V to 3.6 V, and all AC/DC parameters-including tAA = 10 ns and ISB2 = 20 mA-are guaranteed across this full range. At 2.5 V, it meets industrial-grade timing and power specs without derating.

Is the 44-pin TSOP II package of CY7C1051H30-10ZSXI RoHS-compliant?

Yes. The "ZSXI" suffix explicitly denotes a Pb-free, RoHS-compliant 44-pin TSOP II package. It uses lead-free solder paste compatible with standard J-STD-020 reflow profiles and meets EU Directive 2011/65/EU requirements without exemptions.