Infineon Technologies CY62147G-45ZSXI

Overview

CY62147G-45ZSXI from Infineon Technologies (formerly Cypress) is a 4-Mbit MoBL® SRAM with embedded ECC, configured as 256K × 16-bit, operating at 45 ns access time across 2.2–3.6 V supply, featuring TTL-compatible I/Os and Byte Power Down for ultra-low standby current (8.7 µA max). It serves in industrial control systems requiring error-resilient memory for real-time firmware execution and data logging.

For engineers reviewing the CY62147G-45ZSXI datasheet, CY62147G-45ZSXI pinout, CY62147G-45ZSXI application, or CY62147G-45ZSXI equivalent, key selection criteria include ECC-enabled single-bit error correction, dual-chip-enable support, 44-pin TSOP II package compatibility, and verified operation over –40°C to +85°C industrial temperature range.

Technical Context

This SRAM implements a synchronous CMOS architecture with integrated ECC encoder/decoder logic that detects and corrects single-bit errors during read cycles without automatic write-back. The device supports both single and dual chip enable configurations and uses BHE/ BLE signals to gate upper/lower byte writes independently.

It features Byte Power Down mode: when both BHE and BLE are deasserted, the device enters standby regardless of CE state-enabling dynamic power gating per memory access granularity. The ERR pin is absent in CY62147G variants (only present in CY62147GE), confirming this part lacks error indication output.

Key Specifications

Pinout & Package

44-pin Thin Small Outline Package (TSOP II), 400 mil body width, JEDEC MO-141AC compliant. 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 SRAM with ECC applications.

Compared with IS61WV25616EDBLL-10MLI and AS6C4008-55ZIN, CY62147G-45ZSXI uniquely delivers hardware ECC, 45 ns speed at 3.3 V, and 16-bit bus width in a drop-in TSOP II footprint-making it the sole option for new industrial designs requiring certified error resilience without firmware overhead.

Availability

CY62147G-45ZSXI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, railway signaling controllers, and avionics display systems requiring stable component supply across extended product lifecycles.

Supply support for CY62147G-45ZSXI 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, sensing, connectivity, and memory solutions for industrial, automotive, and IoT markets.

CY62147G belongs to the MoBL® (Mobile Binary Logic) SRAM product line, engineered specifically for low-power, high-reliability embedded systems where data integrity, fast access, and extended temperature operation are mandatory.

FAQ

Does CY62147G-45ZSXI support automatic error correction write-back?

No. The device detects and corrects single-bit errors during read operations but does not perform automatic write-back to memory. Corrected data appears on I/O lines, and any persistent correction must be handled by external logic or host firmware. This behavior is explicitly documented in Note 1 of the datasheet.

What is the function of the Byte Power Down feature?

When both BHE and BLE are deasserted, the device automatically enters standby mode-even if CE remains active-reducing ICC to ≤8.7 µA. This eliminates the need for external power-gating signals and enables fine-grained power control per memory access pattern, critical for battery-operated industrial sensors.

Is the ERR pin present on CY62147G-45ZSXI?

No. The ERR pin is exclusive to CY62147GE variants (ordering code suffix "E"). CY62147G-45ZSXI is a G-series part without error indication output. Pin configuration diagrams confirm pin 29 is NC (no connect) in all CY62147G TSOP II layouts.

Can CY62147G-45ZSXI operate at 1.8 V?

No. This variant is rated for 2.2 V to 3.6 V only (speed grade "30" per ordering table). The 1.65–2.2 V range applies only to CY62147G-55ZSXI (55 ns version). Attempting 1.8 V operation violates VCC min specification and may cause timing violations or data retention failure.