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Document Number: 38-12018 Rev. *M Page 31 of 47
10.0.1 AC General Purpose I/O Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C ≤ T
A
≤ 85°C, or 3.0V to 3.6V and -40°C ≤ T
A
≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and
are for design guidance only.
Figure 10-3. GPI/O Timing Diagram
10.0.1 AC Full-Speed USB Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -10°C ≤ T
A
≤ 85°C, or 3.0V to 3.6V and -10°C ≤ T
A
≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and
are for design guidance only.
Table 10-17. AC GPI/O Specifications
Symbol Description Min Typ Max Units Notes
F
GPI/O
GPI/O Operating Frequency 0 – 12 MHz Normal Strong Mode
TRiseF Rise Time, Normal Strong Mode, Cload = 50 pF 3 – 18 ns Vdd = 4.5 to 5.25V, 10% - 90%
TFallF Fall Time, Normal Strong Mode, Cload = 50 pF 2 – 18 ns Vdd = 4.5 to 5.25V, 10% - 90%
TRiseS Rise Time, Slow Strong Mode, Cload = 50 pF 10 27 – ns Vdd = 3 to 5.25V, 10% - 90%
TFallS Fall Time, Slow Strong Mode, Cload = 50 pF 10 22 – ns Vdd = 3 to 5.25V, 10% - 90%
Table 10-18. AC Full-Speed (12 Mbps) USB Specifications
Symbol Description Min Typ Max Units Notes
T
RFS
Transition Rise Time 4 – 20 ns For 50 pF load.
T
FSS
Transition Fall Time 4 – 20 ns For 50 pF load.
T
RFMFS
Rise/Fall Time Matching: (T
R
/T
F
)90– 111 % For 50 pF load.
T
DRATEFS
Full-Speed Data Rate 12 -
0.25%
12 12 +
0.25%
Mbps
TFallF
TFallS
TRiseF
TRiseS
90%
10%
GPIO
Pin
Output
Voltage
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