參數資料
型號: TMX320VC5509AGHH
廠商: Texas Instruments, Inc.
元件分類: 數字信號處理
英文描述: TMS320VC5509A Fixed-Point Digital Signal Processor
中文描述: TMS320VC5509A定點數字信號處理器
文件頁數: 133/144頁
文件大?。?/td> 1603K
代理商: TMX320VC5509AGHH
Electrical Specifications
133
November 2002 Revised January 2005
SPRS205D
Table 540. I
2
C Signals (SDA and SCL) Switching Characteristics
CV
DD
= 1.2 V
CV
DD
= 1.35 V
CV
DD
= 1.6 V
NO.
PARAMETER
STANDARD
MODE
FAST
MODE
STANDARD
MODE
FAST
MODE
UNIT
MIN
10
MAX
MIN
2.5
MAX
MIN
10
MAX
MIN
2.5
MAX
IC16
t
c(SCL)
Cycle time, SCL
μ
s
IC17
t
d(SCLH-SDAL)
Delay time, SCL high to
SDA low for a repeated
START condition
4.7
0.6
4.7
0.6
μ
s
IC18
t
d(SDAL-SCLL)
Delay time, SDA low to
SCL low for a START and
a repeated START
condition
Pulse duration, SCL low
4
0.6
4
0.6
μ
s
IC19
t
w(SCLL)
t
w(SCLH)
4.7
1.3
4.7
1.3
μ
s
μ
s
IC20
Pulse duration, SCL high
4
0.6
4
0.6
IC21
t
d(SDA-SCLH)
Delay time, SDA valid to
SCL high
250
100
250
100
ns
IC22
t
v(SCLL-SDAV)
Valid time, SDA valid
after SCL low
0
0
0.9
0
0
0.9
μ
s
IC23
t
w(SDAH)
Pulse duration, SDA high
between
STOP
START conditions
and
4.7
1.3
4.7
1.3
μ
s
IC24
t
r(SDA)
t
r(SCL)
t
f(SDA)
t
f(SCL)
Rise time, SDA
1000
20 + 0.1C
b
20 + 0.1C
b
20 + 0.1C
b
20 + 0.1C
b
300
1000
20 + 0.1C
b
20 + 0.1C
b
20 + 0.1C
b
20 + 0.1C
b
300
ns
IC25
Rise time, SCL
1000
300
1000
300
ns
IC26
Fall time, SDA
300
300
300
300
ns
IC27
Fall time, SCL
300
300
300
300
ns
IC28
t
d(SCLH-SDAH)
Delay time, SCL high to
SDA high for a STOP
condition
4
0.6
4
0.6
μ
s
IC29
C
p
Capacitance for each
I
2
C pin
10
10
10
10
pF
C
b
= total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
IC25
IC23
IC19
IC18
IC22
IC27
IC20
IC21
IC17
IC18
IC28
Stop
Start
Repeated
Start
Stop
SDA
SCL
IC16
IC26
IC24
Figure 538. I
2
C Transmit Timings
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