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PIC16F72 Datasheet, PDF (103/136 Pages) Microchip Technology – 28-Pin, 8-Bit CMOS FLASH MCU with A/D Converter | |||
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PIC16F72
TABLE 14-6: SPI MODE REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Typâ Max Units Conditions
70* TssL2scH, SSâ to SCKâ or SCKâ input
TssL2scL
TCY
â â ns
71* TscH
SCK input high time (Slave mode)
TCY + 20 â â ns
72* TscL
SCK input low time (Slave mode)
TCY + 20 â â ns
73* TdiV2scH, Setup time of SDI data input to SCK edge
TdiV2scL
100
â â ns
74* TscH2diL, Hold time of SDI data input to SCK edge
TscL2diL
100
â â ns
75* TdoR
SDO data output rise time
Standard(F)
â
Extended(LF)
â
10 25 ns
25 50 ns
76* TdoF
SDO data output fall time
â
10 25 ns
77* TssH2doZ SSâ to SDO output hi-impedance
10
â 50 ns
78* TscR
SCK output rise time
(Master mode)
Standard(F)
â
Extended(LF)
â
10 25 ns
25 50 ns
79* TscF
SCK output fall time (Master mode)
â
10 25 ns
80* TscH2doV, SDO data output valid after
Standard(F)
â
TscL2doV SCK edge
Extended(LF)
â
â 50 ns
â 145 ns
81* TdoV2scH, SDO data output setup to SCK edge
TdoV2scL
TCY
â â ns
82* TssL2doV SDO data output valid after SSâ edge
â
â 50 ns
83* TscH2ssH, SS â after SCK edge
TscL2ssH
1.5 TCY + 40 â â ns
* These parameters are characterized but not tested.
â Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
FIGURE 14-14: I2C BUS START/STOP BITS TIMING
SCL
SDA
91
90
93
92
START
Condition
Note: Refer to Figure 14-3 for load conditions.
STOP
Condition
 2002 Microchip Technology Inc.
DS39597B-page 101
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