AK2347B Datasheet, PDF (17/34 Pages) Asahi Kasei Microsystems – Two-way Radio Audio & Sub-Audio Processor

ASAHI KASEI
[AK2347B]
2) Detail Timing Chart
Write mode
CSN
SCLK
SDATA
(Input)
SDATA
(Output)
Read mode
CSN
SCLK
Tcss
Twh
Twl
Tds
Tdh
R/W A3
A2
A1 A0
Hi-Z
Tcss
Tsd
Tcsh
D7
D6
D1 D0
Tcsh
Tcd
Tdd
SDATA
(Input)
SDATA
(Output)
R/W A3
A2
A1 A0
Hi-Z
Hi-Z
D7 D6
D1
D0
Rising and falling time
Tr
Tf
SCLK
VIH
VIL
Parameter
Symbol Condition
Min.
Typ.
Max.
Unit
CSN setup time
Tcss
100
ns
SDATA setup time
Tds
100
ns
SDATA hold time
Tdh
100
ns
SCLK high time
Twh
500
ns
SCLK low time
Twl
500
ns
CSN hold time
Tcsh
100
ns
SDATA Hi-Z setup time Tsd
500
ns
SCLK to SDATA
delay time
Tdd 20pF load
500
ns
CSN to SDATA
delay time
Tcd
20pF load
100
ns
SCLK rising time
Tr
100
ns
SCLK falling time
Tf
100
ns
Note) In digital input timing, rising time is relative to VIH and falling time is relative to VIL.
In digital output timing, rising time is relative to VOH and falling time is relative to VOL.
MS1419-E-00
- 17 -
2012/05