4RCD0124KC0ATG8

Overview

The 4RCD0124KC0ATG8 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 VDD supply. The device features a 32-bit 1:2 register command and address buffer with parity. It is housed in a 253-ball FCCSP package with dimensions of 13.5 x 8.0 x 1.4 mm and a 0.65 mm pitch. The component supports DDR4 speeds up to 2400 MT/s and includes support for CKE power-down modes.

Feature Summary

• JEDEC-compliant Gen 1 DDR4 Registered Clock Driver optimized for 1.2V operation
• Features 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 RDIMM designs
• LRDIMM memory module implementations
• UDIMM system applications

Procurement Notes

This product is listed as discontinued with an End-of-Life date of May 30, 2025. Verification of final availability or last-time-buy status is required through official Renesas channels before procurement planning. Alternative packaging options such as tape and reel may be available for related suffixes.

Selection Notes

Select this component for Gen 1 DDR4 systems requiring a registered clock driver with a 1:2 output ratio. Ensure the design utilizes a 1.2V supply voltage. The device is intended for use with IDT 4DB0226KA data buffers and IDTTSE2004GB2 temperature sensors. Verify PCB layout compatibility with the 253-ball FCCSP footprint.

Part Context

The 4RCD0124K series represents IDT's entry into JEDEC-compliant DDR4 RCD solutions following IDT's acquisition by Renesas. This specific part targets Gen 1 DDR4 standards, distinguishing it from later generations like the 4RCD0232K which supports higher speeds up to 3200 MT/s. It serves as a critical timing component for stabilizing command and address signals in high-density memory modules.

Replacement Considerations

The 4RCD0124KC0ATGI8 is identified as an alternative packaging type (tape and reel) for the same functional device. For higher performance requirements, the 4RCD0232K series offers Gen 2.5 capabilities supporting speeds up to 3200 MT/s.