AK1541 参数 Datasheet PDF下载

[AK1541]

2. Serial Interface Timing

<Write-In Timing>

Tlesu

LE

(Input)

Tch

CLK

(Input)

Tsu

DATA

(Input)

Thd

Tcl

Tle

Tcsu

D19

D18

D0

A3

A2

A1

A0

D19

Fig. 3 Serial Interface Timing

Table 5 Serial Interface Timing

Parameter

Clock L level hold time

Clock H level hold time

Clock setup time

Data setup time

Data hold time

LE Setup Time

LE Pulse Width

Symbol

Tcl

Tch

Tcsu

Tsu

Thd

Tlesu

Tle

Min.

40

40

20

20

20

20

40

Typ.

Max.

Unit

ns

ns

ns

ns

ns

ns

ns

Remarks

Note 1)

LE pin has to be set “Low” after register data setting completed. If LE pin keeps “High” with CLK operation, the

register may not be guaranteed proper setting.

Note 2) While LE pin is setting “Low”, 24 iteration clocks have to be set with CLK pin. If 25 or larger clocks are set, the

last 24 clocks synchronized data are valid.

MS1043-E-05

8

2013/03