Infineon Technologies CY7C4122KV13-106FCXC

Overview

CY7C4122KV13-106FCXC from Cypress Semiconductor is a 144-Mbit QDR™-IV XP SRAM configured as 8M × 18, operating at 1066 MHz with 2132 MT/s random transaction rate, 8.0-cycle read latency, and dual DDR bidirectional data ports (Port A/Port B) for concurrent access in high-bandwidth networking and packet buffering applications.

For engineers reviewing the CY7C4122KV13-106FCXC datasheet, CY7C4122KV13-106FCXC pinout, CY7C4122KV13-106FCXC application, or CY7C4122KV13-106FCXC equivalent, key selection criteria include its eight-bank architecture, on-die termination (ODT), per-bit deskew training, address parity protection, and on-chip ECC supporting <0.01 FITs/Mb soft error rate.

Technical Context

This QDR-IV XP SRAM uses differential clocking (CK/CK#) to latch Port A addresses on the rising edge and Port B addresses on the falling edge, enabling time-multiplexed command arbitration over a single address bus while maintaining independent DDR data paths. It implements HSTL/SSTL-compatible I/O signaling (VDDQ = 1.2 V ± 50 mV) and POD signaling (VDDQ = 1.1 V ± 50 mV) with programmable drive strength and ZQ-based output impedance calibration.

The device integrates JTAG 1149.1 test access port (1.3-V LVCMOS), supports bus inversion on address and data lines to reduce switching noise, and performs internal self-calibration of ODT for clock, address/command, and data inputs - all coordinated through configuration registers accessible via JTAG or serial interface.

Key Specifications

Pinout & Package

Package: 361-ball Fine-Pitch Chip Scale Ball Grid Array (FCBGA), 21 mm × 21 mm, Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T36120L10BG and MT47H128M16RT-25E, CY7C4122KV13-106FCXC delivers deterministic low-latency concurrency, hardware ECC, and calibrated I/O - critical for packet-forwarding ASICs and radar DSPs where timing predictability and soft-error immunity are non-negotiable.

Availability

CY7C4122KV13-106FCXC is available at Aetrix Electronics and suitable for high-speed packet buffering, network switch fabric memory, telecom baseband processing, and radar signal processing requiring stable component supply and long-term lifecycle support.

Supply support for CY7C4122KV13-106FCXC 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 headquarters in San Jose, CA.

CY7C4122KV13 belongs to the QDR™-IV XP SRAM product line, engineered specifically for ultra-low-latency, high-throughput memory subsystems in networking ASICs, FPGA-based accelerators, and real-time signal processing platforms.

FAQ

What is the core voltage requirement for CY7C4122KV13-106FCXC?

The device requires VDD = 1.3 V ± 40 mV for core logic operation. This tightly regulated supply powers the internal banks, ECC engine, configuration registers, and clock distribution network. Deviation beyond ±40 mV risks timing violations or metastability in address latching and bank decoding circuits, and is not supported per datasheet specifications.

Does CY7C4122KV13-106FCXC support both HSTL and POD signaling simultaneously?

No - HSTL/SSTL (VDDQ = 1.2 V ± 50 mV) and POD (VDDQ = 1.1 V ± 50 mV) are mutually exclusive I/O standards selected at power-up via configuration register settings. The device cannot operate with mixed signaling on different pins; all DQ, DKx, and QKx groups must use the same VDDQ and signaling mode.

How is address parity error cleared after PE# assertion?

PE# remains asserted low until explicitly cleared by writing to the Address Parity Error Clear bit (bit 15) in Configuration Register 0 via JTAG or serial interface. A hardware reset does not clear PE#; software intervention is mandatory to restore normal address validation operation.

Can CY7C4122KV13-106FCXC be used in a ×36 data width configuration?

No - CY7C4122KV13-106FCXC is specifically the 8M × 18 configuration. The ×36 variant is the CY7C4142KV13-106FCXC. Pinout, address bit count (A[21:0] vs A[20:0]), and internal bank mapping differ; substituting one for the other will result in incorrect addressing and data corruption.