MPC5644BCAMMJ1 datasheet(38/116 Pages) NXP

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MPC5646C Microcontroller DataSheet, Rev. 7

Electrical Characteristics

NXP Semiconductors

Electrical Characteristics

This section contains electrical characteristics of the device as well as temperature and power considerations.

This product contains devices to protect the inputs against damage due to high static voltages. However, it is advisable to take

precautions to avoid application of any voltage higher than the specified maximum rated voltages.

To enhance reliability, unused inputs can be driven to an appropriate logic voltage level (VDD or VSS_HV). This could be done

by the internal pull-up and pull-down, which is provided by the product for most general purpose pins.

The parameters listed in the following tables represent the characteristics of the device and its demands on the system.

In the tables where the device logic provides signals with their respective timing characteristics, the symbol “CC” for Controller

Characteristics is included in the Symbol column.

In the tables where the external system must provide signals with their respective timing characteristics to the device, the symbol

“SR” for System Requirement is included in the Symbol column.

4.1

Parameter classification

The electrical parameters shown in this supplement are guaranteed by various methods. To give the customer a better

understanding, the classifications listed in Table 5 are used and the parameters are tagged accordingly in the tables where

appropriate.

NOTE

The classification is shown in the column labeled “C” in the parameter tables where

appropriate.

4.2

NVUSRO register

Portions of the device configuration, such as high voltage supply is controlled via bit values in the Non-Volatile User Options

7 When MBIST is enabled to run ( STCU Enable = 1), the application must not drive or tie PAD[178) (MDO[0]) to 0 V

before the device exits reset (external reset is removed) as the pad is internally driven to 1 to indicate MBIST

operation. When MBIST is not enabled (STCU Enable = 0), there are no restriction as the device does not internally

drive the pad.

8 These pins can be configured as Nexus pins during reset by the debugger writing to the Nexus Development

Interface "Port Control Register" rather than the SIUL. Specifically, the debugger can enable the MDO[7:0], MSEO,

and MCKO ports by programming NDI (PCR[MCKO_EN] or PCR[PSTAT_EN]). MDO[8:11] ports can be enabled by

programming NDI ((PCR[MCKO_EN] and PCR[FPM]) or PCR[PSTAT_EN]).

Table 5. Parameter classifications

Classification tag

Tag description

Those parameters are guaranteed during production testing on each individual device.

Those parameters are achieved by the design characterization by measuring a statistically

relevant sample size across process variations.

Those parameters are achieved by design characterization on a small sample size from typical

devices under typical conditions unless otherwise noted. All values shown in the typical column

are within this category.

Those parameters are derived mainly from simulations.

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