bh3866as ROHM Co. Ltd., bh3866as Datasheet - Page 14

• Manufacturer Part Number: bh3866as
• Description: Dual-line Serial Control Sound Processor Ic
• Manufacturer: ROHM Co. Ltd.

•
(1) I
14
Video ICs
Data setting methods
Clock frequency range
The HIGH period of the clock
THe LOW period of the clock
SCL rise time
SCL fall time
Set-up time for start condition
Hold time for start condition
Set-up time for stop condition
Time bus must be free before a
new transmission can start
Set-up time DATA
2
C BUS timing
Parameter
SCL
SDA start condition
SDA stop condition
SDA
t
t
t
The above characteristics are logical values in the IC design, and are not guaranteed
based on the shipping inspection. Any problems that may arise will be handled through
mutual discussion in good faith.
SU; STA = start code set-up time.
HD; STA = start code hold time.
SU; STO = stop code set-up time.
t
SU; DA
t
LOW
t
t
t
t
Symbol
HD
su
su
su
Fig.2 Timing requirements for I
F
t
t
; STO
t
; DAT
; STA
HIGH
; STA
LOW
BUF
SCL
t
t
r
f
t
r
Min.
250
t
4.7
4.7
4.7
4.7
t
SU; ST
—
—
SU; ST
0
4
4
Typ.
—
—
—
—
—
—
—
—
—
—
t
HIG
t
t
t
BUF = bus free time.
SU; DAT = data set-up time.
HD; DAT = data hold time.
2
Max.
C BUS
100
0.3
—
—
—
—
—
—
—
1
t
HD; ST
t
BUF
t
HD; DA
Unit
kHz
ns
s
s
s
s
s
s
s
s
t
f
BH3866AS