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| SAM4L_14 Datasheet, PDF (117/176 Pages) ATMEL Corporation – Technology for Ultra-low Power Consumption | |||
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ATSAM4L8/L4/L2
Table 9-16. TWI Pin Characteristics in TWI configuration (1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
DRIVEH=0
0.5
ICS
Current Source(3)
DRIVEH=1
DRIVEH=2
1
mA
1.5
DRIVEH=3
3
fMAX
tRISE
tFALL
1.
2.
3.
Max frequency(2)
HsMode with Current source;
DRIVEx=3, SLEW=0
Cbus = 400pF, VVDD = 1.68V
3.5
6.4
MHz
Rise time(2)
HsMode Mode, DRIVEx=3, SLEW=0
Cbus = 400pF, Rp = 440Ohm,
VVDD = 1.68V
28
38
ns
Fall time(2)
Standard Mode, DRIVEx=3, SLEW=0
Cbus = 400pF, Rp = 440Ohm,
VVDD = 1.68V
HsMode Mode, DRIVEx=3, SLEW=0
Cbus = 400pF, Rp = 440Ohm,
VVDD = 1.68V
50
95
ns
50
95
VVDD corresponds to either VVDDIN or VVDDIO, depending on the supply for the pin. Refer to Section 3-5 on page 13 for details
These values are based on simulation. These values are not covered by test limits in production or characterization
These values are based on characterization. These values are not covered by test limits in production
Table 9-17. TWI Pin Characteristics in GPIO configuration (1)
Symbol
RPULLUP
RPULLDOWN
VIL
VIH
VOL
VOH
IOL
IOH
Parameter
Pull-up resistance (2)
Pull-up resistance(2)
Input low-level voltage
Input high-level voltage
Output low-level voltage
Output high-level voltage
Output low-level current (3)
Output high-level current(3)
Conditions
ODCR0=0
ODCR0=1
ODCR0=0
ODCR0=1
1.68V<VVDD<2.7V
2.7V<VVDD<3.6V
1.68V<VVDD<2.7V
2.7V<VVDD<3.6V
1.68V<VVDD<2.7V
2.7V<VVDD<3.6V
1.68V<VVDD<2.7V
2.7V<VVDD<3.6V
Min
Typ
40
40
-0.3
0.8 * VVDD
VVDD - 0.4
Max
0.2 * VVDD
VVDD + 0.3
0.4
Units
kΩ
kΩ
V
V
V
1.8
3.5
mA
3.6
6.8
1.8
3.5
mA
3.6
6.8
42023GSâSAMâ03/2014
117
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