PIC17C75X Datasheet, PDF (241/320 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers

FIGURE 20-13: I²C BUS START/STOP BITS TIMING
SCL
SDA
91
90
PIC17C75X
93
92
START
Condition
STOP
Condition
Note: Refer to Figure 20-1 for load conditions
TABLE 20-13: I²C BUS START/STOP BITS REQUIREMENTS
Param.
No.
Sym Characteristic
Min
Typ Max Units
Conditions
90
TSU:STA START condition 100 kHz mode 2(TOSC)(BRG + 1) § — —
Only relevant for
Setup time
400 kHz mode 2(TOSC)(BRG + 1) § — —
1 MHz mode ^{(1) 2(TOSC)(BRG + 1) § — —}
ns ^{repeated START condi-}
tion
91
THD:STA START condition 100 kHz mode 2(TOSC)(BRG + 1) § — —
After this period the first
Hold time
400 kHz mode 2(TOSC)(BRG + 1) § — — _ns ^{clock pulse is generated}
1 MHz mode ^{(1) 2(TOSC)(BRG + 1) § — —}
92
TSU:STO STOP condition 100 kHz mode 2(TOSC)(BRG + 1) § — —
Setup time
400 kHz mode 2(TOSC)(BRG + 1) § — — _ns
1 MHz mode ^{(1) 2(TOSC)(BRG + 1) § — —}
93
THD:STO STOP condition 100 kHz mode 2(TOSC)(BRG + 1) § — —
Hold time
400 kHz mode 2(TOSC)(BRG + 1) § — — _ns
1 MHz mode ^{(1) 2(TOSC)(BRG + 1) § — —}
§ This specification ensured by design. For the value required by the I²C specification, please refer to Figure E-11.
Note 1: Maximum pin capacitance = 10 pF for all I²C pins.
© 1997 Microchip Technology Inc.
Preliminary
DS30264A-page 241