DSPIC30F datasheet(214/248 Pages) MICROCHIP

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dsPIC30F

DS70083G-page 212

Preliminary

 2004 Microchip Technology Inc.

TABLE 23-30: SPI MODULE SLAVE 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

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(4)

—

SP52

TscH2ssH

TscL2ssH

↑ after SCKX Edge

1.5 T

CY + 40

—

SP60

TssL2doV SDO

X Data Output Valid after

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.

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