SPMU406 November   2025 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 LMK3H2108A07 Configuration Information
  4. 2Device Register Map
  5. 3Device Registers
  6. 4Revision History

1.1 LMK3H2108A07 Configuration Information

Table 1-1 LMK3H2108A07 Frequency Configuration
OTP PageOUT0 (MHz)OUT1 (MHz)OUT2 (MHz)OUT3 (MHz)OUT4 (MHz)OUT5 (MHz)OUT6 (MHz)OUT7 (MHz)
OTP Page 000000000
OTP Page 100000000
OTP Page 200000000
OTP Page 300000000
Table 1-2 LMK3H2108A07 I2C Configuration
OTP PageI2C Configuration
OTP Page 0

I2C Address: 0x6c

1 Byte Register Addressing

OTP Page 1

I2C Address: 0x6c

1 Byte Register Addressing

OTP Page 2

I2C Address: 0x6c

1 Byte Register Addressing

OTP Page 3

I2C Address: 0x6c

1 Byte Register Addressing

OTP Page 0

Table 1-3 LMK3H2108A07 GPI Settings, OTP Page 0
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPIInvertedEnabledDisabled
GPI1GPIInvertedEnabledDisabled
GPI2GPIInvertedEnabledDisabled
GPI3GPIInvertedEnabledDisabled
GPI4GPIInvertedEnabledDisabled
GPI5GPIInvertedEnabledDisabled
Table 1-4 LMK3H2108A07 GPIO Settings, OTP Page 0
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0GPIInvertedEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2Dynamic OTPNormalEnabledDisabled
GPIO3Global OEInvertedEnabledDisabled
GPIO4GPIInvertedEnabledDisabled
Table 1-5 LMK3H2108A07 Input Settings, OTP Page 0
InputPowered Up/DownInput FormatInput Termination
IN_0Powered UpDifferential IN0None, DC
IN_1Powered DownDifferential IN1None, DC
IN_2Powered UpDifferential IN2None, DC
Table 1-6 LMK3H2108A07 Output Settings, OTP Page 0
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT0085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT1085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT2085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT3085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT4085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT5085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT6085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT7085 Ω LP-HCSLIN_0DisabledGlobal OE OnlyDisabled

OTP Page 1

Table 1-7 LMK3H2108A07 GPI Settings, OTP Page 1
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPIInvertedEnabledDisabled
GPI1GPIInvertedEnabledDisabled
GPI2GPIInvertedEnabledDisabled
GPI3GPIInvertedEnabledDisabled
GPI4GPIInvertedEnabledDisabled
GPI5GPIInvertedEnabledDisabled
Table 1-8 LMK3H2108A07 GPIO Settings, OTP Page 1
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0GPIInvertedEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2Dynamic OTPNormalEnabledDisabled
GPIO3Global OEInvertedEnabledDisabled
GPIO4GPIInvertedEnabledDisabled
Table 1-9 LMK3H2108A07 Input Settings, OTP Page 1
InputPowered Up/DownInput FormatInput Termination
IN_0Powered UpDifferential IN0None, DC
IN_1Powered DownDifferential IN1None, DC
IN_2Powered UpDifferential IN2None, DC
Table 1-10 LMK3H2108A07 Output Settings, OTP Page 1
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT0085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT1085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT2085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT3085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT4085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT5085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT6085 Ω LP-HCSLIN_0EnabledGlobal OE OnlyDisabled
OUT7085 Ω LP-HCSLIN_0DisabledGlobal OE OnlyDisabled

OTP Page 2

Table 1-11 LMK3H2108A07 GPI Settings, OTP Page 2
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPIInvertedEnabledDisabled
GPI1GPIInvertedEnabledDisabled
GPI2GPIInvertedEnabledDisabled
GPI3GPIInvertedEnabledDisabled
GPI4GPIInvertedEnabledDisabled
GPI5GPIInvertedEnabledDisabled
Table 1-12 LMK3H2108A07 GPIO Settings, OTP Page 2
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0GPIInvertedEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2Dynamic OTPNormalEnabledDisabled
GPIO3Global OEInvertedEnabledDisabled
GPIO4GPIInvertedEnabledDisabled
Table 1-13 LMK3H2108A07 Input Settings, OTP Page 2
InputPowered Up/DownInput FormatInput Termination
IN_0Powered UpDifferential IN0None, DC
IN_1Powered DownDifferential IN1None, DC
IN_2Powered UpDifferential IN2None, DC
Table 1-14 LMK3H2108A07 Output Settings, OTP Page 2
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT0085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT1085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT2085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT3085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT4085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT5085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT6085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT7085 Ω LP-HCSLIN_2DisabledGlobal OE OnlyDisabled

OTP Page 3

Table 1-15 LMK3H2108A07 GPI Settings, OTP Page 3
GPI PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPI0GPIInvertedEnabledDisabled
GPI1GPIInvertedEnabledDisabled
GPI2GPIInvertedEnabledDisabled
GPI3GPIInvertedEnabledDisabled
GPI4GPIInvertedEnabledDisabled
GPI5GPIInvertedEnabledDisabled
Table 1-16 LMK3H2108A07 GPIO Settings, OTP Page 3
GPIO PinPin BehaviorPolarityInternal Pull-DownInternal Pull-Up
GPIO0GPIInvertedEnabledDisabled
GPIO1Dynamic OTPNormalEnabledDisabled
GPIO2Dynamic OTPNormalEnabledDisabled
GPIO3Global OEInvertedEnabledDisabled
GPIO4GPIInvertedEnabledDisabled
Table 1-17 LMK3H2108A07 Input Settings, OTP Page 3
InputPowered Up/DownInput FormatInput Termination
IN_0Powered UpDifferential IN0None, DC
IN_1Powered DownDifferential IN1None, DC
IN_2Powered UpDifferential IN2None, DC
Table 1-18 LMK3H2108A07 Output Settings, OTP Page 3
OutputFrequency (MHz)FormatClock SourceOutput StateOE GroupSSC Behavior
OUT0085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT1085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT2085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT3085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT4085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT5085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT6085 Ω LP-HCSLIN_2EnabledGlobal OE OnlyDisabled
OUT7085 Ω LP-HCSLIN_2DisabledGlobal OE OnlyDisabled