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CY7C64345, CY7C6435x
Document Number: 001-12394 Rev *G Page 20 of 28
AC General Purpose I/O Specifications
Table 17 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Figure 6. GPIO Timing Diagram
AC External Clock Specifications
Table 18 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 17. AC GPIO Specifications
Symbol Description Conditions Min Typ Max Units
F
GPIO
GPIO Operating Frequency Normal Strong Mode, Ports 0, 1 0 – 12 MHz
TRise23 Rise Time, Strong Mode
Ports 2, 3
Vdd = 3.3 to 5.5V, 10% - 90% 15 – 80 ns
TRise01 Rise Time, Strong Mode
Ports 0, 1
Vdd = 3.3 to 5.5V, 10% - 90% 10 – 50 ns
TFall Fall Time, Strong Mode
All Ports
Vdd = 3.3 to 5.5V, 10% - 90% 10 – 50 ns
TFall
TRise23
TRise01
90%
10%
GPIO
Pin
Output
Voltage
Table 18. AC External Clock Specifications
Symbol Description Min Typ Max Units
F
OSCEXT
Frequency 0.750 –25.2MHz
– High Period 20.6
– 5300 ns
– Low Period 20.6
– –ns
– Power Up IMO to Switch 150
– – μs
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