PIC16F872_06 Datasheet, PDF (136/168 Pages) Microchip Technology – 28-Pin, 8-Bit CMOS Flash Microcontroller with 10-Bit A/D

PIC16F872
TABLE 14-6: SPI MODE REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Typ† Max Units Conditions
70* TssL2scH, SS↓ to SCK↓ or SCK↑ Input
TssL2scL
TCY
—
—
ns
71* TscH
SCK Input High Time (Slave mode)
TCY + 20
—
—
ns
72* TscL
SCK Input Low Time (Slave mode)
TCY + 20
—
—
ns
73* TdiV2scH, Setup Time of SDI Data Input to SCK Edge
TdiV2scL
100
—
—
ns
74* TscH2diL, Hold Time of SDI Data Input to SCK Edge
TscL2diL
100
—
—
ns
75* TdoR
SDO Data Output Rise Time
Standard(F)
—
Extended(LF)
—
10
25 ns
25
50 ns
76* TdoF
SDO Data Output Fall Time
—
10
25 ns
77* TssH2doZ SS↑ to SDO Output Hi-Impedance
10
—
50 ns
78* TscR
SCK Output Rise Time (Master mode) Standard(F)
—
Extended(LF)
—
10
25 ns
25
50 ns
79* TscF
SCK Output Fall Time (Master mode)
—
10
25 ns
80* TscH2doV, SDO Data Output Valid after SCK Standard(F)
—
TscL2doV Edge
Extended(LF)
—
—
50 ns
— 145
81* TdoV2scH, SDO Data Output Setup to SCK Edge
TdoV2scL
TCY
—
—
ns
82* TssL2doV SDO Data Output Valid after SS↓ Edge
—
—
50 ns
83* TscH2ssH, SS↑ after SCK Edge
TscL2ssH
1.5TCY + 40 —
—
ns
* 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.
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
TABLE 14-7: I²C BUS START/STOP BITS REQUIREMENTS
Parameter
No.
Symbol
90
TSU:STA
91
THD:STA
92
TSU:STO
93
THD:STO
Characteristic
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
Min Typ Max Units
Conditions
4700 — —
600 — —
4000 — —
600 — —
4700 — —
600 — —
4000 — —
600 — —
ns Only relevant for Repeated
START condition
ns After this period, the first clock
pulse is generated
ns
ns
DS30221C-page 134
© 2006 Microchip Technology Inc.