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PIC16F87X Datasheet, PDF (172/218 Pages) Microchip Technology – 28/40-pin 8-Bit CMOS FLASH Microcontrollers | |||
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PIC16F87X
TABLE 15-7: 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
10
25 ns
Extended(LF)
â
25
50 ns
79*
TscF
SCK output fall time (Master mode)
â
10
25 ns
80*
TscH2doV, SDO data output valid after SCK Standard(F)
â
TscL2doV edge
Extended(LF)
â
â
50 ns
â 145
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
1.5TCY + 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 15-17: I2C BUS START/STOP BITS TIMING
SCL
SDA
91
90
93
92
START
Condition
Note: Refer to Figure 15-5 for load conditions.
STOP
Condition
DS30292C-page 170
 2001 Microchip Technology Inc.
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