CY8C20x36/46/66, CY8C20396

AC Chip-Level Specifications

The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.

Table 23. AC Chip-Level Specifications

Symbol

Description

Conditions

Min

Typ

Max

Units

FMAX

Maximum Operating Frequency

 

24

MHz

FCPU

Maximum Processing Frequency

 

24

MHz

F32K1

Internal Low Speed Oscillator Frequency

 

19

32

50

kHz

FIMO24

Internal Main Oscillator Frequency at 24

 

22.8

24

25.2

MHz

 

MHz Setting

 

 

 

 

 

FIMO12

Internal Main Oscillator Frequency at 12

 

11.4

12

12.6

MHz

 

MHz Setting

 

 

 

 

 

FIMO6

Internal Main Oscillator Frequency at 6

 

5.7

6.0

6.3

MHz

 

MHz Setting

 

 

 

 

 

DCIMO

Duty Cycle of IMO

 

40

50

60

%

TRAMP

Supply Ramp Time

 

0

μs

TXRST

External Reset Pulse Width at Power Up

After supply voltage is valid

1

 

 

ms

TXRST2

External Reset Pulse Width after Power

Applies after part has booted

10

 

 

μs

 

Up

 

 

 

 

 

AC General Purpose IO Specifications

The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.

Table 24. AC GPIO Specifications

Symbol

Description

Conditions

Min

Typ

Max

Units

FGPIO

GPIO Operating Frequency

Normal Strong Mode Port 0, 1

0

6 MHz for

MHz

 

 

 

 

 

1.71V<Vdd<2.4V

 

 

 

 

0

12 MHz for

 

 

 

 

 

 

2.4V<Vdd<5.5V

 

TRise23

Rise Time, Strong Mode, Cload = 50 pF

Vdd = 3.0 to 3.6V, 10% – 90%

15

80

ns

 

Ports 2 or 3

 

 

 

 

 

TRise23L

Rise Time, Strong Mode Low Supply,

Vdd = 1.71 to 3.0V, 10% – 90%

15

80

ns

 

Cload = 50 pF, Ports 2 or 3

 

 

 

 

 

TRise01

Rise Time, Strong Mode, Cload = 50 pF

Vdd = 3.0 to 3.6V, 10% – 90%

10

50

ns

 

Ports 0 or 1

LDO enabled or disabled

 

 

 

 

TRise01L

Rise Time, Strong Mode Low Supply,

Vdd = 1.71 to 3.0V, 10% – 90%

10

80

ns

 

Cload = 50 pF, Ports 0 or 1

LDO enabled or disabled

 

 

 

 

TFall

Fall Time, Strong Mode, Cload = 50 pF

Vdd = 3.0 to 3.6V, 10% – 90%

10

50

ns

 

All Ports

 

 

 

 

 

TFallL

Fall Time, Strong Mode Low Supply,

Vdd = 1.71 to 3.0V, 10% – 90%

10

70

ns

 

Cload = 50 pF, All Ports

 

 

 

 

 

Document Number: 001-12696 Rev. *D

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Cypress CY8C20x36, CY8C20x46, CY8C20396, CY8C20x66 manual AC Chip-Level Specifications, AC General Purpose IO Specifications