參數(shù)資料
型號： 16F872
廠商： Microchip Technology Inc.
英文描述： CAT 5E CROSSOVER PATCH CORD CABLE GREEN 10 FT
中文描述： 28引腳，8位閃存微控制器的CMOS
文件頁數(shù)： 139/160頁
文件大?。?/td> 2600K
代理商： 16F872
1999 Microchip Technology Inc.
Preliminary
DS30221A-page 139
PIC16F872
TABLE 14-6:
SPI MODE REQUIREMENTS
FIGURE 14-14: I
2
C BUS START/STOP BITS TIMING
TABLE 14-7:
Parameter
No.
I
2
C BUS START/STOP BITS REQUIREMENTS
Sym
Characteristic
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
70*
TssL2scH,
TssL2scL
TscH
TscL
TdiV2scH,
TdiV2scL
TscH2diL,
TscL2diL
TdoR
SS
↓
to SCK
↓
or SCK
↑
input
T
CY
—
—
ns
71*
72*
73*
SCK input high time (slave mode)
SCK input low time (slave mode)
Setup time of SDI data input to SCK edge
T
CY
+ 20
T
CY
+ 20
100
—
—
—
—
—
—
ns
ns
ns
74*
Hold time of SDI data input to SCK edge
100
—
—
ns
75*
SDO data output rise time
Standard(
F
)
Extended(
LF
)
—
—
—
10
—
—
—
—
—
T
CY
10
25
10
—
10
25
10
—
—
—
25
50
25
50
25
50
25
50
145
—
ns
ns
ns
ns
ns
ns
ns
ns
76*
77*
78*
TdoF
TssH2doZ
TscR
SDO data output fall time
SS
↑
to SDO output hi-impedance
SCK output rise time (master mode) Standard(
F
)
Extended(
LF
)
79*
80*
TscF
TscH2doV,
TscL2doV
TdoV2scH,
TdoV2scL
TssL2doV
TscH2ssH,
TscL2ssH
These parameters are characterized but not tested.
Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
SCK output fall time (master mode)
SDO data output valid after SCK
edge
SDO data output setup to SCK edge
Standard(
F
)
Extended(
LF
)
81*
ns
82*
83*
SDO data output valid after SS
↓
edge
SS
↑
after SCK edge
—
—
—
50
—
ns
ns
1.5T
CY
+ 40
*
Min Typ Max Units
Conditions
90
T
SU
:
STA
START condition
Setup time
START condition
Hold time
STOP condition
Setup time
STOP condition
Hold time
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
4700
600
4000
600
4700
600
4000
600
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ns
Only relevant for repeated START
condition
91
T
HD
:
STA
ns
After this period the first clock
pulse is generated
92
T
SU
:
STO
ns
93
T
HD
:
STO
ns
Note:
Refer to Figure 14-3 for load conditions.
91
93
SCL
SDA
START
Condition
STOP
Condition
90
92
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