SC667201MMG3 datasheet(74/120 Pages) FREESCALE

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MPC5642A Microcontroller Data Sheet, Rev. 3.1

Freescale Semiconductor

Electrical characteristics

3.9.2

LVDS pad specifications

LVDS pads are implemented to support the MSC (Microsecond Channel) protocol which is an enhanced feature of the DSPI

module. The LVDS pads are compliant with LVDS specifications and support data rates up to 50 MHz.

Table 23. VRC33 pad average DC current

1 These are typical values that are estimated from simulation and not tested. Currents apply to output pins only.

Pad type

Symbol

Period

(ns)

Load2

(pF)

2 All loads are lumped.

VRC33

(V)

VDDE

(V)

Drive

select

IDD33 Avg

(µA)

IDD33 RMS

(µA)

Fast

IDRV_FC

503.6

3.611

2.35

6.12

303.6

3.610

1.75

4.3

203.6

3.601

1.41

3.43

103.6

3.600

1.06

2.9

3.6

1.98

1.75

4.56

3.6

1.98

1.32

3.44

3.6

1.98

1.14

2.95

3.6

1.98

0.95

2.62

Table 24. DSPI LVDS pad specification

Symbol

Parameter

Condition

Value

Unit

Min

Typ

Max

Data rate

fLVDSCLK

CC D Data frequency

—

MHz

Driver specifications

VOD

CC P Differential output voltage

SRC = 0b00 or

0b11

150

—

400

CC P

SRC = 0b01

—

320

CC P

SRC = 0b10

160

—

480

VOC

CC P Common mode voltage (LVDS), VOS

—

1.06

1.2

1.39

TR/TF

CC D Rise/Fall time

—

TPLH

CC D Propagation delay (Low to High)

—

TPHL

CC D Propagation delay (High to Low)

—

tPDSYNC

CC D Delay (H/L), sync mode

—

TDZ

CC D Delay, Z to Normal (High/Low)

—

500

—

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