MC9S12XD256MAL Datasheet, PDF (888/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2)
• Power consumption will increase the more the voltages on general purpose input pins deviate from
the supply voltages towards mid-range because the digital input buffers operate in the linear region.
MC9S12XDP512 Data Sheet, Rev. 2.21
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Freescale Semiconductor