Cypress CY7C6435x manual AC General Purpose I/O Specifications, AC External Clock Specifications

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CY7C6431x

CY7C64345, CY7C6435x

AC General Purpose I/O Specifications

Table 17 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

FGPIO

GPIO Operating Frequency

Normal Strong Mode, Ports 0, 1

0

12

MHz

TRise23

Rise Time, Strong Mode

Vdd = 3.3 to 5.5V, 10%

- 90%

15

80

ns

 

Ports 2, 3

 

 

 

 

 

 

TRise01

Rise Time, Strong Mode

Vdd = 3.3 to 5.5V, 10%

- 90%

10

50

ns

 

Ports 0, 1

 

 

 

 

 

 

TFall

Fall Time, Strong Mode

Vdd = 3.3 to 5.5V, 10%

- 90%

10

50

ns

 

All Ports

 

 

 

 

 

 

Figure 6. GPIO Timing Diagram

90%

 

GPIO

 

Pin

 

Output

 

Voltage

 

10%

 

TRise23

TFall

TRise01

 

AC External Clock Specifications

Table 18 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.

Table 18. AC External Clock Specifications

Symbol

Description

Min

Typ

Max

Units

FOSCEXT

Frequency

0.750

25.2

MHz

High Period

20.6

5300

ns

Low Period

20.6

ns

Power Up IMO to Switch

150

μs

Document Number: 001-12394 Rev *G

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