DSPIC30F datasheet(212/248 Pages) MICROCHIP

212 / 248 page

dsPIC30F

DS70083G-page 210

Preliminary

 2004 Microchip Technology Inc.

FIGURE 23-16:

SPI MODULE SLAVE MODE (CKE = 0) TIMING CHARACTERISTICS

TABLE 23-29: SPI MODULE SLAVE MODE (CKE = 0) 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

SP70

TscL

SCK

X Input Low Time

—

SP71

TscH

SCK

X Input High Time

—

SP20

TscF

SCK

X Output Fall Time(3)

—10

—

SP21

TscR

SCK

X Output Rise Time(3)

—10

—

SP30

TdoF

SDO

X Data Output Fall Time(3)

—10

—

SP31

TdoR

SDO

X Data Output Rise Time(3)

—10

—

SP35

TscH2doV,

TscL2doV

SDO

X Data Output Valid after

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

—

SP50

TssL2scH,

TssL2scL

↓ to SCKX↑ or SCKX↓ Input

120

—

SP51

TssH2doZ SS

↑ to SDOX Output

Hi-Impedance(3)

—

SP52

TscH2ssH

TscL2ssH

X after SCK Edge

1.5 T

CY +40

—

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.

Assumes 50 pF load on all SPI pins.

SSX

SCKX

(CKP = 0)

SCKX

(CKP = 1)

SDOX

SDI

SP50

SP40

SP41

SP30,SP31

SP51

SP35

SDIX

MSb

LSb

BIT14 - - - - - -1

MSb IN

BIT14 - - - -1

LSb IN

SP52

SP21

SP20

SP21

SP20

SP71

SP70

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

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