PPC5604BAMLL4R datasheet(38/109 Pages) NXP

38 / 109 page

MPC5604B/C Microcontroller Data Sheet, Rev. 15

Package pinouts and signal descriptions

NXP Semiconductors

K is a constant for the particular part, which may be determined from Equation 3 by measuring

PD (at equilibrium) for a known TA. Using this value of K, the values of PD and TJ may be

obtained by solving equations 1 and 2 iteratively for any value of TA.

2.15

I/O pad electrical characteristics

2.15.1

I/O pad types

The device provides four main I/O pad types depending on the associated alternate functions:

•

Slow pads—These pads are the most common pads, providing a good compromise between

transition time and low electromagnetic emission.

•

Medium pads—These pads provide transition fast enough for the serial communication channels

with controlled current to reduce electromagnetic emission.

•

Fast pads—These pads provide maximum speed. There are used for improved Nexus debugging

capability.

•

Input only pads—These pads are associated to ADC channels and the external 32 kHz crystal

oscillator (SXOSC) providing low input leakage.

Medium and Fast pads can use slow configuration to reduce electromagnetic emission, at the cost of

reducing AC performance.

2.15.2

I/O input DC characteristics

Table 15 provides input DC electrical characteristics as described in Figure 7.

Figure 7. I/O input DC electrical characteristics definition

VIL

VIN

VIH

PDIx = ‘1’

VDD

VHYS

(GPDI register of SIUL)

PDIx = ‘0’

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