MPC5634MF0MMGA4 datasheet(70/118 Pages) FREESCALE

70 / 118 page

MPC5634M Microcontroller Data Sheet, Rev. 4

Preliminary—Subject to Change Without Notice

Electrical characteristics

Freescale Semiconductor

3.7

Power up/down sequencing

There is no power sequencing required among power sources during power up and power down, in order to operate within

specification but use of the following sequence is strongly recommended when the internal regulator is bypassed:

→ 3.3 V and 1.2 V

This is also the normal sequence when the internal regulator is enabled.

Although there are no power up/down sequencing requirements to prevent issues like latch-up, excessive current spikes, etc.,

the state of the I/O pins during power up/down varies according to table Table 17 for all pins with fast pads (pad_fc), and

Table 18 for all pins with medium (pad_msr_hv), slow (pad_ssr_hv) and multi-voltage (pad_multv_hv) pads.

3.8

DC electrical specifications

Table 17. Power sequence pin states for fast pads

VDDE

VRC33

VDD

Fast (pad_fc)

LOW

VDDE

LOW

HIGH

VDDE

VRC33

LOW

HIGH IMPEDANCE

VDDE

VRC33

VDD

FUNCTIONAL

Table 18. Power sequence pin states for medium, slow and multi-voltage pads

VDDEH

VDD

Medium (pad_msr_hv)

Slow (pad_ssr_hv)

Multi-voltage (pad_multv_hv)

LOW

VDDEH

LOW

HIGH IMPEDANCE

VDDEH

VDD

FUNCTIONAL

Table 19. DC electrical specifications1

Symbol

Parameter

Conditions

Value2

Unit

min

typ

max

VDD

—

Core supply voltage

—

1.14

—

1.32

VDDE

—

I/O supply voltage

—

1.62

—

3.6

VDDEH

—

I/O supply voltage

—

3.0

—

5.25

VRC33

—

3.3 V regulated

voltage3

—3.0

—

3.6

VDDA

—

Analog supply

voltage

—4.754

—5.25

VINDC

—

Analog input

voltage5

—VSSA–0.3

—

VDDA+0.3

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