The 4DB0232KD is a JEDEC compliant DDR4 Data Buffer with dual 4-bit bidirectional “DQ” data registers and “DQS” differential strobes. It is designed for 1.2 VDD operation in DDR4 LRDIMM applications. The DQ host interface side of each 4-bit bidirectional data register is connected to a memory controller while the MDQ interface side is connected to two x4 DRAMs. The 4DB0232KD supports speeds up to 3200 just like the 4DB0232KC, but also has improved power efficiency.


  • All DDR4 data rates from 1600MT/s to 3200MT/s
  • DDR4DB02 JEDEC Specification r1.0 compliant
  • 3.0 × 7.5 mm body, 0.5 × 0.5 mm ball pitch, 14 × 5 grid, 53-CVBGA, optimized for DDR4 LRDIMM PCB layout
  • Supports all JEDEC LRDIMM raw card types
  • Lower power dissipation reduces dependency on heat sinks in standard server configurations
  • Guaranteed operation at commercial grade temperatures

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Package Buy Sample
4DB0232KD1AVG Active FCCSP 53 C Yes Tray Package Info
4DB0232KD1AVG8 Active FCCSP 53 C Yes Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
4DB0232KD1 Short-Form Datasheet Short Form Datasheet PDF 671 KB
Application Notes & White Papers
IDT DDR4 LRDIMMs Let You Have It All 简体中文 White Paper PDF 1.08 MB
DDR4 LRDIMMs For Both Memory Capacity and Speed White Paper PDF 5.22 MB
Memory Interface Products Family Overview 简体中文 Overview PDF 515 KB