Freescale's MPC564xA Power and Reset [Application Note]*

autoembedded — Fri, 08 Oct 2021 04:52:49 GMT

Current Revision posted to Documents by autoembedded on 10/8/2021 4:52:49 AM

The Qorivva MPC564xA is designed for mid-range gasoline and direct injection engines and advanced transmissions. The Qorivva MPC564xA offers enhanced powertrain functionality, such as on-chip emission control and also addresses the harsh environments of engines and transmissions.

Internally, the MPC564xA requires multiple power supply voltages; however, the device can run from a single 5 V power supply by generating the other voltages from internal regulators and an internal regulator controller. The major power supply for the devices is 5 V, which powers the internal regulators and is used for the pin input and output voltages. In addition, 3.3 V is required for the internal pad prebuffers and flash memory. The majority of the internal logic including the FMPLL is powered by 1.2 V. These voltages can all be generated from the internal regulators and regulator controller. The SRAM has a separate supply input for stay-alive features, if they are wanted. If using the device’s external bus or external debug trace features, an external 3.3 V supply is also required.

This application note describes the power supply options for the MPC564xA as well as the required external circuitry for all of the power supplies, including digital supplies, analog supplies, the SRAM standby supply, and the phase-locked loop supply. Also included is a section on the device’s reset configuration options.

View full application note here.

Tags: freescaledocs, in:automotive, engines, freescale, qorivva, automotive, mcu, application_note, auto, direct_injection