BK4819 datasheet(9/22 Pages) BEKEN

9 / 22 page

BK4819

Proprietary and Confidential

Page 9 of 22

2.6

SPI Control Interface Characteristics

Table 6. SPI Control Interface Characteristics

Parameter

Symbol

Min.

Typ.

Max.

SCK Frequency

fSCK

0 MHz

—

8 MHz

SCK High Time

tHIGH

25 ns

—

SCK Low Time

tLOW

25 ns

—

SDATA Input, SCN to SCK↑ Setup

20 ns

—

SDATA Input to SCK↑ Hold

tHSDATA

10 ns

—

SCN Input to SCK↓ Hold

tHSCN

10 ns

—

SCK↓ to SDATA Output Valid

tCDV

2 ns

—

25 ns

SCK↓ to next SCK↑ after Address In

tNXT

1 us

—

SCK, SCN, SDATA, Rise/Fall Time

tR,tF

—

10 ns

SCK

SDATA

SCN

R/W

A6-1

D15

D14-1

tS tHSDIO

tHIGH tLOW

tHSENB

3-wire Control Interface

Write Timing Diagram

Figure 6. 3-Wire Control Interface Write Timing Diagram

SCK

SDATA

SCN

R/W

A6-1

D15

D14-1

tHSENB

tCDV

Bus

Turnaround

tNXT

3-wire Control Interface

Read Timing Diagram

Address In

Data Out

Figure 7. 3-Wire Control Interface Read Timing Diagram

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