Specifications
CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *V Page 20 of 71
DC GPIO Specifications
The following tables list the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to
5.25 V and –40 °C T
A
85 °C, 3.0 V to 3.6 V and –40 °C T
A
85 °C, or 2.4 V to 3.0 V and –40 °C T
A
85 °C, respectively.
Typical parameters are measured at 5 V, 3.3 V, and 2.7 V at 25 °C and are for design guidance only.
Table 12. 5-V and 3.3-V DC GPIO Specifications
Symbol Description Min Typ Max Units Notes
R
PU
Pull-up resistor 4 5.6 8 k
R
PD
Pull-down resistor 4 5.6 8 k
V
OH
High output level V
DD
– 1.0 – – V I
OH
= 10 mA, V
DD
= 4.75 to 5.25 V
(maximum 40 mA on even port pins
(for example, P0[2], P1[4]), maximum
40 mA on odd port pins (for example,
P0[3], P1[5])). 80 mA maximum
combined I
OH
budget.
V
OL
Low output level – – 0.75 V I
OL
= 25 mA, V
DD
= 4.75 to 5.25 V
(maximum 100 mA on even port pins
(for example, P0[2], P1[4]), maximum
100 mA on odd port pins (for
example, P0[3], P1[5])). 150 mA
maximum combined I
OL
budget.
I
OH
High level source current 10 – – mA V
OH
= V
DD
– 1.0 V, see the limitations
of the total current in the note for V
OH
I
OL
Low level sink current 25 – – mA V
OL
= 0.75 V, see the limitations of the
total current in the note for V
OL
V
IL
Input low level – – 0.8 V V
DD
= 3.0 to 5.25
V
IH
Input high level 2.1 – V V
DD
= 3.0 to 5.25
V
H
Input hysterisis – 60 – mV
I
IL
Input leakage (absolute value) – 1 – nA Gross tested to 1 µA
C
IN
Capacitive load on pins as input – 3.5 10 pF Package and pin dependent.
Temp = 25 °C
C
OUT
Capacitive load on pins as output – 3.5 10 pF Package and pin dependent.
Temp = 25 °C
Table 13. 2.7-V DC GPIO Specifications
Symbol Description Min Typ Max Units Notes
R
PU
Pull-up resistor 4 5.6 8 k
R
PD
Pull-down resistor 4 5.6 8 k
V
OH
High output level V
DD
– 0.4 – – V I
OH
= 2 mA (6.25 Typ), V
DD
= 2.4 to
3.0 V (16 mA maximum, 50 mA Typ
combined I
OH
budget).
V
OL
Low output level – – 0.75 V I
OL
= 11.25 mA, V
DD
= 2.4 to 3.0 V (90
mA maximum combined I
OL
budget).
I
OH
High level source current 2 – – mA V
OH
= V
DD
– 0.4, see the limitations
of total current in note for V
OH
.
V
IL
Input low level – – 0.75 V V
DD
= 2.4 to 3.0
V
IH
Input high level 2.0 – – V V
DD
= 2.4 to 3.0
V
H
Input hysteresis – 90 – mV
I
OL
Low level sink current 11.25 – – mA V
OL
= .75, see the limitations of total
current in note for V
OL
.
I
IL
Input leakage (absolute value) – 1 – nA Gross tested to 1 µA
C
IN
Capacitive load on pins as input – 3.5 10 pF Package and pin dependent.
Temp = 25 °C
C
OUT
Capacitive load on pins as output – 3.5 10 pF Package and pin dependent.
Temp = 25 °C