Infineon Technologies CY62147G-45ZSXIT

Overview

CY62147G-45ZSXIT from Infineon Technologies (formerly Cypress) is a 4-Mbit MoBL® Static RAM with embedded Error-Correcting Code (ECC), configured as 256K words × 16-bit, operating at 45 ns access time, supporting 2.2 V–3.6 V supply, and packaged in a 48-ball VFBGA. It delivers single-bit error detection and correction during read cycles and targets high-reliability industrial memory subsystems in microcontroller-based data loggers.

For engineers reviewing the CY62147G-45ZSXIT datasheet, CY62147G-45ZSXIT pinout, CY62147G-45ZSXIT application, or CY62147G-45ZSXIT equivalent, key selection criteria include ECC-enabled data integrity, ultra-low standby current (≤8.7 µA), dual chip enable support, byte-level write control via BHE/ BLE, and compatibility with 16-bit parallel bus interfaces in space-constrained embedded systems.

Technical Context

This SRAM implements a synchronous CMOS architecture with integrated ECC encoder/decoder logic that operates transparently during read cycles-detecting and correcting single-bit errors without CPU intervention. The device uses separate Byte High Enable (BHE) and Byte Low Enable (BLE) inputs to gate writes to upper/lower 8-bit bytes, enabling precise memory mapping in mixed-data-width systems.

It supports three V_CC ranges (1.65–2.2 V, 2.2–3.6 V, 4.5–5.5 V); the -45 variant is specified for 2.2–3.6 V operation at 45 ns max access time. Standby power is minimized via Byte Power Down mode: when both BHE and BLE are deasserted, the device enters low-power state regardless of CE status.

Key Specifications

Pinout & Package

Package: 48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA), 6 mm × 8 mm, 0.8 mm ball pitch, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV25616EDBLL-10MLI and AS6C4008-55ZIN, CY62147G-45ZSXIT uniquely integrates hardware ECC with byte-selective power control and multi-voltage support-making it the sole option among these three for industrial systems requiring certified data integrity without firmware overhead.

Availability

CY62147G-45ZSXIT is available at Aetrix Electronics and suitable for industrial data loggers, medical diagnostic devices, railway signaling controllers, and programmable logic controllers requiring stable component supply across extended product lifecycles.

Supply support for CY62147G-45ZSXIT 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 manufacturing and quality certification to ISO 9001 and IATF 16949.

CY62147G belongs to Infineon's MoBL® (Mobile Bit-Line) SRAM product line, engineered for ultra-low-power, high-reliability embedded memory in space-constrained industrial and medical systems where data integrity and long-term supply stability are mandatory.

FAQ

Does CY62147G-45ZSXIT support automatic error correction without CPU intervention?

Yes. The device performs single-bit error correction transparently during read operations using on-die ECC logic. No software or external controller action is required-the corrected data appears on I/O lines, and the ERR pin asserts HIGH to signal correction occurred. It does not perform automatic write-back; corrected data remains in the accessed location only for that read cycle.

What is the function of the dual chip enable (CE1/CE2) interface?

CE1 is active-low and CE2 is active-high; both must be asserted simultaneously (CE1 = LOW, CE2 = HIGH) to enable the device. This configuration allows hierarchical memory decoding-e.g., using CE2 as a bank select signal driven by higher-order address bits, while CE1 serves as local chip select-improving noise immunity and reducing false enable events in noisy industrial environments.

Can CY62147G-45ZSXIT operate at 1.8 V?

No. The -45ZSXIT suffix denotes the 2.2 V–3.6 V V_CC range and 45 ns speed grade. For 1.65–2.2 V operation, the correct variant is CY62147G-55ZSXIT (55 ns). Operating outside its specified voltage range risks timing violations, increased bit errors, or functional failure per datasheet Section 7 (Maximum Ratings).

Is the ERR pin present on CY62147G-45ZSXIT?

No. The "G" suffix (vs. "GE") indicates the absence of the ERR output pin. CY62147G variants implement ECC internally but do not expose error status externally. Only CY62147GE parts include the ERR pin; the -45ZSXIT part number confirms it is a CY62147G variant per Infineon's ordering code definitions (Document 001-92847, page 17).