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February 25, 2005
Document No. 38-12022 Rev. *G
16
CY8C21x23 Final Data Sheet
3. Electrical Specifications
3.3.2
DC General Purpose IO 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, 3.0V to 3.6V and -40
°
C
≤
T
A
≤
85
°
C, respectively. Typical parameters apply to 5V, 3.3V, or 2.7V at 25
°
C and
are for design guidance only.
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 2.4V to 3.0V and
-40
°
C
≤
T
A
≤
85
°
C. Typical parameters apply to 2.7V at 25
°
C and are for design guidance only.
Table 3-5. 5V and 3.3V DC GPIO Specifications
Symbol
R
PU
R
PD
V
OH
Description
Min
Typ
Max
Units
k
k
Notes
Pull up Resistor
4
5.6
8
Pull down Resistor
4
5.6
8
High Output Level
Vdd - 1.0
–
–
V
IOH = 10 mA, Vdd = 4.75 to 5.25V (8 total loads,
4 on even port pins (for example, P0[2], P1[4]),
4 on odd port pins (for example, P0[3], P1[5])).
80 mA maximum combined IOH budget.
IOL = 25 mA, Vdd = 4.75 to 5.25V (8 total loads,
4 on even port pins (for example, P0[2], P1[4]),
4 on odd port pins (for example, P0[3], P1[5])).
150 mA maximum combined IOL budget.
Vdd = 3.0 to 5.25.
V
OL
Low Output Level
–
–
0.75
V
V
IL
V
IH
V
H
I
IL
C
IN
C
OUT
Input Low Level
–
–
0.8
V
Input High Level
2.1
–
V
Vdd = 3.0 to 5.25.
Input Hysteresis
–
60
–
mV
Input Leakage (Absolute Value)
–
1
–
nA
Gross tested to 1
μ
A.
Capacitive Load on Pins as Input
–
3.5
10
pF
Package and pin dependent. Temp = 25
o
C.
Package and pin dependent. Temp = 25
o
C.
Capacitive Load on Pins as Output
–
3.5
10
pF
Table 3-6. 2.7V DC GPIO Specifications
Symbol
R
PU
R
PD
V
OH
Description
Min
Typ
Max
Units
k
k
Notes
Pull up Resistor
4
5.6
8
Pull down Resistor
4
5.6
8
High Output Level
Vdd - 0.4
–
–
V
IOH = 2.5 mA (6.25 Typ), Vdd = 2.4 to 3.0V (16
mA maximum, 50 mA Typ combined IOH bud-
get).
IOL = 10 mA, Vdd = 2.4 to 3.0V (90 mA maxi-
mum combined IOL budget).
Vdd = 2.4 to 3.0.
V
OL
Low Output Level
–
–
0.75
V
V
IL
V
IH
V
H
I
IL
C
IN
C
OUT
Input Low Level
–
–
0.75
V
Input High Level
2.0
–
–
V
Vdd = 2.4 to 3.0.
Input Hysteresis
–
60
–
mV
Input Leakage (Absolute Value)
–
1
–
nA
Gross tested to 1
μ
A.
Capacitive Load on Pins as Input
–
3.5
10
pF
Package and pin dependent. Temp = 25
o
C.
Package and pin dependent. Temp = 25
o
C.
Capacitive Load on Pins as Output
–
3.5
10
pF