4RCD0124KC0ATGI8

Overview

The 4RCD0124KC0ATGI8 is a JEDEC-compliant Gen 1 DDR4 Registered Clock Driver (RCD) manufactured by Renesas Electronics Corporation. Designed for enterprise-class server RDIMMs, LRDIMMs, and UDIMMs, it operates with a 1.2V supply voltage and supports data rates up to 2400 MT/s. The device integrates a 32-bit 1:2 register command and address buffer with parity. It is housed in a 253-ball FCCSP package measuring 13.5 x 8.0 x 1.4 mm with a 0.65mm pitch. This component is specifically engineered to optimize PCB layout for DDR4 memory modules.

Feature Summary

• JEDEC-compliant Gen 1 DDR4 Registered Clock Driver supporting speeds up to 2400 MT/s
• Integrates a 32-bit 1:2 register command and address buffer with parity
• Supports CKE power-down operation modes and quad chip select operations
• Available in a 253-ball FCCSP package (13.5 x 8.0 x 1.4 mm)

Applications

• Enterprise-class server RDIMMs
• LRDIMMs
• UDIMMs

Procurement Notes

This part number is designated as obsolete or End-of-Life. Verification of availability should focus on Last Time Buy notifications or surplus market sources rather than standard active inventory. Confirm the specific suffix ATGI8 corresponds to the tape and reel packaging variant if required for automated assembly processes.

Selection Notes

Select this component for systems requiring Gen 1 DDR4 clock distribution with a 1:2 output ratio. Ensure compatibility with the 4DB0226KA data buffer and TSE2004GB2 temperature sensor as recommended by the manufacturer. Verify that the system design accommodates the 253-ball FCCSP footprint and 1.2V operating voltage constraints.

Part Context

The 4RCD0124K series serves as a foundational clock driver for early-generation DDR4 memory architectures. It bridges the processor clock signals to memory modules, ensuring signal integrity for high-speed data transfer. This specific model represents the Gen 1 iteration, distinct from later Gen 2.5 variants like the 4RCD0232K which support higher frequencies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-compatible replacements may require evaluation of newer generation RCDs such as the 4RCD0232K series, subject to electrical and timing verification.