DSPIC30F datasheet(211/248 Pages) MICROCHIP

211 / 248 page

 2004 Microchip Technology Inc.

Preliminary

DS70083G-page 209

dsPIC30F

FIGURE 23-15:

SPI MODULE MASTER MODE (CKE =1) TIMING CHARACTERISTICS

TABLE 23-28: SPI MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 2.5V to 5.5V

(unless otherwise stated)

Operating temperature

-40°C

≤ TA ≤ +85°C for Industrial

-40

°C ≤ TA ≤ +125°C for Extended

Param

No.

Symbol

Characteristic(1)

Min

Typ(2)

Max

Units

Conditions

SP10

TscL

SCK

X output low time(3)

CY / 2

—

SP11

TscH

SCK

X output high time(3)

CY / 2

—

SP20

TscF

SCK

X output fall time(4)

—10

—

SP21

TscR

SCK

X output rise time(4)

—10

—

SP30

TdoF

SDO

X data output fall time(4)

—10

—

SP31

TdoR

SDO

X data output rise time(4)

—10

—

SP35

TscH2doV,

TscL2doV

SDO

X data output valid after

SCK

X edge

—

SP36

TdoV2sc,

TdoV2scL

SDO

X data output setup to

first SCK

X edge

—

SP40

TdiV2scH,

TdiV2scL

Setup time of SDI

X data input

to SCK

X edge

—

SP41

TscH2diL,

TscL2diL

Hold time of SDI

X data input

to SCK

X edge

—

Note 1:

These parameters are characterized but not tested in manufacturing.

Data in “Typ” column is at 5V, 25°C unless otherwise stated. Parameters are for design guidance only and

are not tested.

The minimum clock period for SCK is 100 ns. Therefore, the clock generated in master mode must not

violate this specification.

Assumes 50 pF load on all SPI pins.

SCK

(CKP = 0)

SCK

(CKP = 1)

SDO

SDI

SP36

SP30,SP31

SP35

MSb

MSb IN

BIT14 - - - - - -1

LSb IN

BIT14 - - - -1

LSb

Note: Refer to Figure 23-3 for load conditions.

SP11

SP10

SP20

SP21

SP20

SP40

SP41

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