Infineon Technologies CY7C4141KV13-667FCXC

Overview

CY7C4141KV13-667FCXC from Cypress Semiconductor is a 144-Mbit QDR™-IV HP SRAM configured as 4M × 36, operating at 667 MHz with 1334 MT/s random transaction rate, 5.0-cycle read latency, and dual DDR bidirectional data ports (Port A/B) for concurrent access in high-bandwidth networking and packet buffering applications.

For engineers reviewing the CY7C4141KV13-667FCXC datasheet, CY7C4141KV13-667FCXC pinout, CY7C4141KV13-667FCXC application, or CY7C4141KV13-667FCXC equivalent, key selection criteria include its 1.3-V core supply, 1.1/1.2-V POD or SSTL/HSTL I/O compatibility, on-die termination, per-bit deskew training, and on-chip ECC supporting <0.01 FITs/Mb soft error rate.

Technical Context

The device implements a dual-port architecture with one shared DDR address/command bus (CK/CK#) and two independent DDR data buses (DKA/DKB for input, QKA/QKB for output), where port A commands are sampled on CK rising edge and port B on CK falling edge. It supports two-word burst transfers on all accesses and uses SDR control signaling (RWA#, LDA#, etc.) synchronized to the same CK clock.

Internal features include programmable bus inversion (address/data), address parity protection with PE# flag, ZQ-based output impedance calibration, and IEEE 1149.1 JTAG boundary scan with 1.3-V LVCMOS signaling. The on-chip ECC detects and corrects all single-bit errors, reducing SER by four orders of magnitude versus prior SRAM generations.

Key Specifications

Pinout & Package

Available in a 361-ball Fine-Pitch Chip Scale Ball Grid Array (FCBGA) package measuring 21 mm × 21 mm, Pb-free, with 1.0-mm ball pitch and standard thermal pad layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance dual-port SRAM applications.

Compared with IDT72T36120L10BG and AS7C3416000B-667BIN, CY7C4141KV13-667FCXC uniquely integrates ECC, ZQ calibration, and JTAG in a 1.1-V POD interface - delivering verified soft-error immunity and production-test readiness without design compromises.

Availability

CY7C4141KV13-667FCXC is available at Aetrix Electronics and suitable for high-speed network switch fabric, telecom line card buffering, radar signal processing, and AI accelerator cache applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C4141KV13-667FCXC 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) designs high-performance memory and programmable solutions for automotive, industrial, and communications markets, with emphasis on reliability, integration, and signal integrity.

CY7C4141KV13 belongs to the QDR™-IV HP SRAM product line, engineered specifically for deterministic, ultra-low-latency, high-throughput memory subsystems in packet-switched infrastructure and real-time signal processing systems.

FAQ

What is the function of the ZQ pin on CY7C4141KV13-667FCXC?

The ZQ pin connects to a 240-Ω external resistor to ground and enables automatic output driver and on-die termination (ODT) impedance calibration. This compensates for process, voltage, and temperature variations, ensuring consistent signal integrity across the 36-bit DQ buses at 1334 MT/s without manual resistor tuning.

Does CY7C4141KV13-667FCXC support both SSTL and POD I/O standards?

Yes - it supports JESD8-16A-compliant SSTL/HSTL (1.2 V ±50 mV or 1.25 V ±50 mV) and JESD8-24-compliant POD (1.1 V ±50 mV or 1.2 V ±50 mV). The selected standard is configured via mode registers; both require separate VDDQ supplies matched to the chosen voltage.

How does the address parity feature work on this SRAM?

The AP input provides even parity across A[20:0] (for ×36 mode); the PE# output asserts low when a parity mismatch is detected during address latching. PE# remains asserted until cleared by writing to the Configuration Register - enabling system-level fault logging and safe failover before corrupted addresses cause data loss.

Can CY7C4141KV13-667FCXC operate with only one data port enabled?

Yes - LDA# and LDB# are independent port enables. Driving LDB# high disables all Port B commands while allowing Port A to operate normally; similarly, LDA# high disables Port A. Internal operations continue, preserving data coherency and enabling graceful port shutdown for power management or fault isolation.