Overview

The SPD5118 hub device is a DDR5 Serial Presence Detect (SPD) EPPROM with Hub function (SPD5 Hub) and integrated temperature sensor (optional) as used for memory module applications. The hub feature allows for the isolation of a local bus from a master host bus. This SPD5 device contains 1024 bytes of non-volatile memory (EEPROM) arranged as 16 blocks of 64 bytes per block. Each block may optionally be write-protected via software command.

SPD5118 - Block Diagram
SPD5118 - Pinout
SPD5118 - Block Diagram
SPD5118 - Pinout
  • Two-wire programmable I²C or I³C bus serial interface
  • Single device load on the Host bus
  • Up to 12.5MHz transfer rate
  • 1.8V power supply input
  • 1.0V VLDO output at VIO pin; optionally can take 1.0V input power supply on VIO pin
  • Supports 1.0V, 1.1V, and 1.2V Push-Pull IO levels
  • Supports 1.0V, 1.1V, 1.2V, 1.8V, 2.5V and 3.3V Open Drain IO levels
  • 16 blocks of non-volatile memory (NVM), 64 bytes per block
  • Hub function with 3 address bit translation
  • Integrated temperature sensor; 0.5 °C accuracy with 0.25 °C resolution
  • Packet Error Check (PEC) function
  • Parity Error Check function
  • Up to 8 unique addressing
  • Programmable I²C, I³C bus addressing scheme
  • In Band Interrupt (IBI)
  • Write protection for each block of NVM
  • 9-pin thermally enhanced DFN package
  • Temperature: Industrial range of -40 °C to 125 °C

Documentation

= Featured Documentation
Type Title Date
Datasheet - Short-form
SPD5xxx Short-Form Datasheet
Log in to Download PDF 85 KB
Product Change Notice
PCN# : 230025 Change in marking format on select DFN-8 package
PDF 437 KB
2 items

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Carrier Type
    Temp. Grade
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    SPD5118-Y1B000NCG
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    memory
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    Samples Available
    		 DFN 8 Cut Tape C 1 Get Samples,
    SPD5118-Y1B000NCG8
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    memory
    view_in_ar
    Samples Available
    		 DFN 8 Reel C 1 Get Samples,
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