MPC5643L datasheet(65/98 Pages) FREESCALE

65 / 98 page

Electrical characteristics

MPC5643L Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

Table 15. HPREG1, HPREG2, Main LVDs, Digital HVD, and Digital LVD electrical specifications

No.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

1SR

External decoupling/

stability capacitor

Min, max values shall be granted

with respect to tolerance, voltage,

temperature, and aging variations.

—

µF

2SR

Combined ESR of

external capacitor

—0.03

—

0.5

3SR

Number of pins for

external decoupling/

stability capacitor

—5

—

4CV1V2

Total capacitance on

1.2 V pins

Ceramic capacitors, taking into

account tolerance, aging, voltage

and temperature variation

—

300

5tSU

Start-up time after main

supply stabilization

Cload =10µF×4

—

2.5

Main high voltage

detectors upper threshold

——

—

2.9

Main high voltage

detectors lower threshold

—2.6

—

Digital high voltage

detector upper threshold

Before a destructive reset

initialization phase completion

—1.5

Digital high voltage

detector upper threshold

After a destructive reset

initialization phase completion

1.32

—

1.4

Digital high voltage

detector lower threshold

Before a destructive reset

initialization phase completion

1.330

—

1.4

Digital low voltage

detector lower threshold

—

1.080

—

1.110

POR rising/ falling supply

threshold voltage

—

1.6

—

2.6

Supply ramp time

—

0.5 × 106

—3

V/s

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