BD3870FS ROHM Co. Ltd., BD3870FS Datasheet - Page 4

• Manufacturer Part Number: BD3870FS
• Description: Audio Sound Processor For Home Audio
• Manufacturer: ROHM Co. Ltd.

●Timing chart
1)
2)
Signal Timing Conditions
Voltage Conditions for Control Signals
・ Data is read on the rising edge of the clock.
・ Latch is read out on the falling edge of the clock.
・ Latch signal must end with the LOW state.
・ To avoid malfunctions, clock and data signals must terminate with the LOW state.
（CLOCK）
DATA
LATCH
1byte=10bit
SI
Minimum Clock Width
Minimum Data Width
Minimum Latch Width
Data Set-up Time (DATA→CLK)
Data Hold Time (CLK→DATA)
Latch Set-up Time (CLK→LATCH)
Latch Hold Time (DATA→LATCH)
Latch Low Set-up Time
Latch Low Hold Width
“H” Input Voltage
“L” Input Voltage
SC
Parameter
90％
tsu
Parameter
DATA
90％
twd
90％
thd
twc
10％
Vcc=4.5 to 9.5V
Vcc=4.5 to 9.5V
Condition
ts
10％
twh
90％
10％
th
4/16
Fig.1
twc
Symbol
Twc
tｗd
Tw1
Thd
Th1
Twh
Tsd
Ts1
Ts
tsd
90％
Min.
DATA
2.2
0
10％
90％
Min.
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
2.0
thd
10％
Typ.
Limits
-
-
Typ.
Limits
ts1
90％
-
-
-
-
-
-
-
-
-
LATCH
10％
90％
tw1
(≦Vcc)
Max.
5.5
1.0
Max.
th1
-
-
-
-
-
-
-
-
-
90％
end with
Low
Unit
Unit
µS
µS
µS
µS
µS
µS
µS
µS
µS
V
V