CY8C20X37 CYPRESS [Cypress Semiconductor], CY8C20X37 Datasheet - Page 22

• Manufacturer Part Number: CY8C20X37
• Manufacturer: CYPRESS [Cypress Semiconductor]

AC General Purpose I/O Specifications
The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 24. AC GPIO Specifications
AC Comparator Specifications
The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 25. AC Low Power Comparator Specifications
AC External Clock Specifications
The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 26. AC External Clock Specifications
Document Number: 001-69257 Rev. *F
F
t
t
t
t
t
t
t
F
RISE23
RISE23L
RISE01
RISE01L
FALL
FALLL
LPC
GPIO
OSCEXT
Symbol
Symbol
Symbol
GPIO operating frequency
Rise time, strong mode, Cload = 50 pF
Ports 2 or 3
Rise time, strong mode low supply,
Cload = 50 pF, Ports 2 or 3
Rise time, strong mode, Cload = 50 pF
Ports 0 or 1
Rise time, strong mode low supply,
Cload = 50 pF, Ports 0 or 1
Fall time, strong mode, Cload = 50 pF
all ports
Fall time, strong mode low supply,
Cload = 50 pF, all ports
Comparator response time,
50 mV overdrive
Frequency (external oscillator
frequency)
High period
Low period
Power-up IMO to switch
Description
Description
Description
GPIO Pin
Voltage
Output
90%
10%
50 mV overdrive does not include
offset voltage.
–
–
–
–
Figure 9. GPIO Timing Diagram
TRise23
TRise01
TRise23L
TRise01L
Normal strong mode Port 0, 1
V
V
V
LDO enabled or disabled
V
LDO enabled or disabled
V
V
DD
DD
DD
DD
DD
DD
= 1.71 to 3.0 V, 10% to 90%
= 1.71 to 3.0 V, 10% to 90%
= 1.71 to 3.0 V, 10% to 90%
= 3.0 to 3.6 V, 10% to 90%
= 3.0 to 3.6 V, 10% to 90%
= 3.0 to 3.6 V, 10% to 90%
Conditions
Conditions
Conditions
CY8C20x37/37S/47/47S/67/67S
TFall
TFallL
Min
15
15
10
10
10
10
20.60
20.60
0
0
0.75
Min
150
Min
–
Typ
–
–
–
–
–
–
–
–
Typ
6 MHz for
1.71 V <V
12 MHz for
2.40 V < V
Typ
–
–
–
–
–
Max
80
80
50
80
50
70
DD
DD
25.20
5300
Max
Max
100
–
–
< 2.40 V
< 5.50 V
Page 22 of 39
Units
Units
MHz
Units
ns
ns
s
MHz
MHz
ns
ns
ns
ns
ns
ns
ns