4RCD0229KB1ATG

Overview

The Renesas 4RCD0229KB1ATG is a JEDEC-compliant Gen 2 DDR4 Registered Clock Driver (RCD) designed for enterprise-class server RDIMMs, LRDIMMs, and UDIMMs. It operates with a 1.2V VDD supply and features a 32-bit 1:2 register command and address buffer with parity. Optimized for DDR4 speeds up to 2667 MT/s, the device supports CKE power down modes and various chip select operations including direct and encoded quad CS. It is housed in a 253-ball Dual-Pitch FCCSP package.

Feature Summary

• JEDEC compliant Gen 2 DDR4 RCD optimized for 2667 MT/s RDIMM, LRDIMM, and UDIMM applications
• Features a 32-bit 1:2 register command and address buffer with parity for 1.2V operation
• Supports CKE Power Down, Direct Dual CS, Direct Quad CS, and Encoded Quad CS modes
• Pinout optimized for DDR4 RDIMM, LRDIMM, and UDIMM PCB layout

Applications

• Enterprise Class Server RDIMMs
• Load-Reduced DIMMs (LRDIMMs)
• Unbuffered DIMMs (UDIMMs)

Procurement Notes

This component is designated as End-of-Life (EOL). A Last Time Buy notification was issued on October 11, 2024. Verification of current stock availability through authorized distributors is required before procurement planning. The product carries a Moisture Sensitivity Level (MSL) of 3 and requires adherence to standard handling procedures.

Selection Notes

Select this part for systems requiring a Gen 2 DDR4 registered clock driver supporting speeds up to 2667 MT/s. Ensure compatibility with the 4DB0226KB DDR4 Data Buffer and TSE2004GB2 Temperature Sensor. Verify that the design accommodates the 253-ball FCCSP package dimensions and pitch requirements.

Part Context

The 4RCD0229K belongs to the 4RCD0229 series of DDR4 Register Clock Drivers. It is specifically engineered for high-performance memory subsystems in enterprise servers. The device provides access to internal control words for configuration, allowing adaptation to different RDIMM and system applications.

Replacement Considerations

The 4RCD0232K is identified as an alternative DDR4 Register Clock Driver within the same family.