Embedded Controller Chips

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The ThinkPad Embedded Controller

This page contains information about Embedded Controller chips found in ThinkPads.

Apparently used on all ThinkPads since the A30, T23, R40, X20.
  • T43, T43p: Renesas H8S/2161BV
  • A31: Renesas H8S/2169AV
  • Unknown chips without field-upgradeable firmware
Used on older ThinkPads, including the model 570, and maybe even earlier models.

See also

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