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Isd1700 series, 12 - 7.2 spi, Figure 12.8: spi operation – Rainbow Electronics ISD1700 User Manual

Page 12

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ISD1700 SERIES

- 12 -

7.2 SPI

O

PERATION

T

SSH

T

SSmin

T

SCKhi

T

SSS

T

DIS

T

DIH

T

SCKlow

T

DF

(TRISTATE)

SS

SCLK

MOSI

MISO

LSB

T

PD

MSB

LSB

MSB

Figure 12.8: SPI Operation

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

SS

Setup Time

T

SSS

500

nsec

SS

Hold Time

T

SSH

500

nsec

Data in Setup Time

T

DIS

200

nsec

Data in Hold Time

T

DIH

200

nsec

Output Delay

T

PD

500

nsec

Output Delay to HighZ

T

DF

500

nsec

SS

HIGH

T

SSmin

1

µsec

SCLK High Time

T

SCKhi

400

nsec

SCLK Low Time

T

SCKlow

400

nsec

CLK Frequency

F

0

1,000

KHz

Power-Up Delay

[1]

T

PUD

50 msec

Notes:

[1]

The value shown is based upon 8 kHz sampling frequency. Delay increases proportionally for

slower sampling frequency.