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BD3823FV 데이터시트(PDF) 3 Page - Rohm

부품명 BD3823FV
상세설명  NTSC-PAL Audio I/O Interface for Recording
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
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BD3823FV 데이터시트(HTML) 3 Page - Rohm

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Timing chart
Electrical specifications and timing of bus lines and I/O stages
Fig.1Timing Definition on I
2C BUS
Table 1 . Characteristics of the SDA and SCL BUS lines for I
2C BUS devices
High speed mode
I
2C BUS
Parameter
Symbol
Min.
Max.
Unit
1
SCL clock frequency
fSCL
0
400
kHz
2
Bus free time between a STOP and START condition
tBUF
1.3
-
s
3
Hold time (repeated) START condition. After this period, the first clock
pulse is generated
tHD;STA
0.6
-
s
4
LOW period of the SCL clock
tLOW
1.3
-
s
5
HIGH period of the SCL clock
tHIGH
0.6
-
s
6
Set-up time for a repeated START condition
tSU;STA
0.6
-
s
7
Data hold time
tHD;DAT
0*
-
s
8
Data set-up time
tSU; DAT
100
-
ns
9
Rise time of both SDA and SCL signals
tR
20+Cb
300
ns
10
Fall time of both SDA and SCL signals
tF
20+Cb
300
ns
11
Set-up time for STOP condition
tSU;STO
0.6
-
s
12
Capacitive load for each bus line
Cb
-
400
pF
The above numerical values all correspond to VIH min and VIL max levels (see Table 2).
*The input signals must internally provide at least 300 ns hold-time for SDA signals (at VIH min of SCL signals) in order to cross over
undefined region at the fall-end of SCL.
Table 2. Characteristics of the SDA and SCL I/O stages for I
2C BUS devices
High speed mode
I2C BUS
Parameter
Symbol
Min.
Max.
Unit
13
Low-level input voltage : fixed input levels
VIL
-0.5
1.0
V
14
Low-level input voltage : fixed input levels
VIH
2.3
-
s
15
Hysteresis of Schmitt trigger inputs: fixed input levels
Vhys
n/a
n/a
V
16
Pulse width of spikes which must be suppressed by the input filter.
tSP
0
50
ns
17
Low-level output voltage (open drain): at 3mA sink current
VOL1
0
0.4
V
18
Output fall time from VIHmin. to VIHmax. with a bus capacitance from 10
pF to 400pF: with up to 3mA sink current at VOL1
tOF
20+0.1Cb
250
ns
19
Input current each I/O pin with an input voltage between 0.4V and 0.9
VCCmax.
Ii
-10
10
A
20
Capacitance for each I/O pin
Ci
-
10
pF
n/a = not applicable


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