feUSCI |
eUSCI input clock frequency |
Internal: SMCLK or ACLK,
External: UCLK,
Duty cycle = 50% ±10% |
|
|
|
16 |
MHz |
fSCL |
SCL clock frequency |
|
2.2 V, 3.0 V |
0 |
|
400 |
kHz |
tHD,STA |
Hold time (repeated) START |
fSCL = 100 kHz |
2.2 V, 3.0 V |
4.0 |
|
|
µs |
fSCL > 100 kHz |
0.6 |
|
|
tSU,STA |
Setup time for a repeated START |
fSCL = 100 kHz |
2.2 V, 3.0 V |
4.7 |
|
|
µs |
fSCL > 100 kHz |
0.6 |
|
|
tHD,DAT |
Data hold time |
|
2.2 V, 3.0 V |
0 |
|
|
ns |
tSU,DAT |
Data setup time |
|
2.2 V, 3.0 V |
100 |
|
|
ns |
tSU,STO |
Setup time for STOP |
fSCL = 100 kHz |
2.2 V, 3.0 V |
4.0 |
|
|
µs |
fSCL > 100 kHz |
0.6 |
|
|
tBUF |
Bus free time between a STOP and START condition |
fSCL = 100 kHz |
|
4.7 |
|
|
µs |
fSCL > 100 kHz |
|
1.3 |
|
|
tSP |
Pulse duration of spikes suppressed by input filter |
UCGLITx = 0 |
2.2 V, 3.0 V |
50 |
|
250 |
ns |
UCGLITx = 1 |
25 |
|
125 |
UCGLITx = 2 |
12.5 |
|
62.5 |
UCGLITx = 3 |
6.3 |
|
31.5 |
tTIMEOUT |
Clock low time-out |
UCCLTOx = 1 |
2.2 V, 3.0 V |
|
27 |
|
ms |
UCCLTOx = 2 |
|
30 |
|
UCCLTOx = 3 |
|
33 |
|