SLUUDL4 September   2026 LMK3H2108

 

  1.   1
  2.   Read This First
    1.     About This Manual
    2.     Notational Conventions
    3.     Glossary
    4.     Related Documentation
    5.     Support Resources
    6.     Trademarks
  3. 1Configuration Overview
    1. 1.1 LMK3H2108A1E Configuration Information
  4. 2Device Register Map
  5. 3Device Registers
  6. 4Revision History

1.1 LMK3H2108A1E Configuration Information

Table 1-1 LMK3H2108A1E Frequency Configuration
OTP PageOUT0 (MHz)OUT1 (MHz)OUT2 (MHz)OUT3 (MHz)OUT4 (MHz)OUT5 (MHz)OUT6 (MHz)OUT7 (MHz)
OTP Page 0100100100100100100100100
OTP Page 1100100100100100100100100
OTP Page 2100100100100100100100100
OTP Page 3100100100100100100100100
Table 1-2 LMK3H2108A1E I2C Configuration
OTP PageI2C Configuration
OTP Page 0

I2C Address: 0x9

1 Byte Register Addressing

OTP Page 1

I2C Address: 0x9

1 Byte Register Addressing

OTP Page 2

I2C Address: 0x9

1 Byte Register Addressing

OTP Page 3

I2C Address: 0x9

1 Byte Register Addressing

OTP Page 0

Table 1-3 LMK3H2108A1E GPI Settings, OTP Page 0
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPINormalEnabledDisabled
GPI1GPINormalEnabledDisabled
GPI2GPINormalDisabledDisabled
GPI3GPINormalDisabledDisabled
GPI4GPINormalEnabledDisabled
GPI5Global OEInvertedEnabledDisabled
Table 1-4 LMK3H2108A1E GPIO Settings, OTP Page 0
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0Dynamic OTPNormalEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2PERST_IN1#InvertedEnabledDisabled
GPIO3Status Output, CLK_READYNormalEnabledDisabled
GPIO4Group OE, OE_GROUP_10InvertedEnabledDisabled
Table 1-5 LMK3H2108A1E Input Settings, OTP Page 0
InputPowered Up/DownInput FormatInput Termination
IN_0Powered DownN/A (IN0 Unused)None, DC
IN_1Powered UpDifferential IN1None, DC
IN_2Powered DownN/A (IN2 Unused)None, DC
Table 1-6 LMK3H2108A1E Output Settings, OTP Page 0
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT010085 Ω LP-HCSLPATH1EnabledOE_GROUP_10Disabled
OUT110085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT210085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT310085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT410085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT510085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT610085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT710085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled

OTP Page 1

Table 1-7 LMK3H2108A1E GPI Settings, OTP Page 1
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPINormalEnabledDisabled
GPI1GPINormalEnabledDisabled
GPI2GPINormalDisabledDisabled
GPI3GPINormalDisabledDisabled
GPI4GPINormalEnabledDisabled
GPI5Global OEInvertedEnabledDisabled
Table 1-8 LMK3H2108A1E GPIO Settings, OTP Page 1
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0Dynamic OTPNormalEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2PERST_IN1#InvertedEnabledDisabled
GPIO3Status Output, CLK_READYNormalEnabledDisabled
GPIO4Group OE, OE_GROUP_10InvertedEnabledDisabled
Table 1-9 LMK3H2108A1E Input Settings, OTP Page 1
InputPowered Up/DownInput FormatInput Termination
IN_0Powered DownN/A (IN0 Unused)None, DC
IN_1Powered UpDifferential IN1None, DC
IN_2Powered DownN/A (IN2 Unused)None, DC
Table 1-10 LMK3H2108A1E Output Settings, OTP Page 1
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT010085 Ω LP-HCSLPATH1EnabledOE_GROUP_10Disabled
OUT110085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT210085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT310085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT410085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT510085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT610085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT710085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled

OTP Page 2

Table 1-11 LMK3H2108A1E GPI Settings, OTP Page 2
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPINormalEnabledDisabled
GPI1GPINormalEnabledDisabled
GPI2GPINormalDisabledDisabled
GPI3GPINormalDisabledDisabled
GPI4GPINormalEnabledDisabled
GPI5Global OEInvertedEnabledDisabled
Table 1-12 LMK3H2108A1E GPIO Settings, OTP Page 2
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0Dynamic OTPNormalEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2PERST_IN1#InvertedEnabledDisabled
GPIO3Status Output, CLK_READYNormalEnabledDisabled
GPIO4Group OE, OE_GROUP_10InvertedEnabledDisabled
Table 1-13 LMK3H2108A1E Input Settings, OTP Page 2
InputPowered Up/DownInput FormatInput Termination
IN_0Powered DownN/A (IN0 Unused)None, DC
IN_1Powered UpDifferential IN1None, DC
IN_2Powered DownN/A (IN2 Unused)None, DC
Table 1-14 LMK3H2108A1E Output Settings, OTP Page 2
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT010085 Ω LP-HCSLPATH1EnabledOE_GROUP_10Disabled
OUT110085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT210085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT310085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT410085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT510085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT610085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT710085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled

OTP Page 3

Table 1-15 LMK3H2108A1E GPI Settings, OTP Page 3
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPINormalEnabledDisabled
GPI1GPINormalEnabledDisabled
GPI2GPINormalDisabledDisabled
GPI3GPINormalDisabledDisabled
GPI4GPINormalEnabledDisabled
GPI5Global OEInvertedEnabledDisabled
Table 1-16 LMK3H2108A1E GPIO Settings, OTP Page 3
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0Dynamic OTPNormalEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2PERST_IN1#InvertedEnabledDisabled
GPIO3Status Output, CLK_READYNormalEnabledDisabled
GPIO4Group OE, OE_GROUP_10InvertedEnabledDisabled
Table 1-17 LMK3H2108A1E Input Settings, OTP Page 3
InputPowered Up/DownInput FormatInput Termination
IN_0Powered DownN/A (IN0 Unused)None, DC
IN_1Powered UpDifferential IN1None, DC
IN_2Powered DownN/A (IN2 Unused)None, DC
Table 1-18 LMK3H2108A1E Output Settings, OTP Page 3
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT010085 Ω LP-HCSLPATH1EnabledOE_GROUP_10Disabled
OUT110085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT210085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT310085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT410085 Ω LP-HCSLPATH1DisabledGlobal OE OnlyDisabled
OUT510085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT610085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled
OUT710085 Ω LP-HCSLPATH1EnabledGlobal OE OnlyDisabled