Cypress Semiconductor CY8C21234, Specification Sheet

Page: 20 / 45

CY8C21634, CY8C21534
CY8C21434, CY8C21334, CY8C21234
Document Number: 38-12025 Rev. *O Page 20 of 45
DC General Purpose IO Specifications
The following tables list the 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, or 2.4V to 3.0V and -40 ° C
≤
T
A
≤
85 ° C, respectively. Typical parameters
apply to 5V, 3.3V, and 2.7V at 25 ° C and are for design guidance only.
I
SB27
Sleep (Mode) Current with POR, LVD, Sleep
Timer, WDT, and internal slow oscillator active.
Mid temperature range.
– 2.6 4.
μ
A Vdd = 2.55V, 0
o
C
≤
T
A
≤
40
o
C.
I
SB
Sleep (Mode) Current with POR, LVD, Sleep
Timer, WDT, and internal slow oscillator active.
– 2.8 5
μ
A Vdd = 3.3V, -40
o
C
≤
T
A
≤
85
o
C.
V
REF
Reference Voltage (Bandgap) 1.28 1.30 1.32 V Trimmed for appropriate Vdd.
Vdd = 3.0V to 5.25V.
V
REF27
Reference Voltage (Bandgap) 1.16 1.30 1.33 V Trimmed for appropriate Vdd. Vdd =
2.4V to 3.0V.
AGND Analog Ground V
REF
- 0.003
V
REF
V
REF
+ 0.003
V
Table 14. DC Chip-Level Specifications (continued)
Symbol Description Min Typ Max Units Notes
Table 15. 5V and 3.3V DC GPIO Specifications
Symbol Description Min Typ Max Units Notes
R
PU
Pull up Resistor 4 5.6 8 k
Ω
R
PD
Pull down Resistor 4 5.6 8 k
Ω
V
OH
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])).
V
OL
Low Output Level – – 0.75 V 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])).
V
IL
Input Low Level – – 0.8 V Vdd = 3.0 to 5.25.
V
IH
Input High Level 2.1 – V Vdd = 3.0 to 5.25.
V
H
Input Hysteresis – 60 – mV
I
IL
Input Leakage (Absolute Value) – 1 – nA Gross tested to 1
μ
A.
C
IN
Capacitive Load on Pins as Input – 3.5 10 pF Package and pin dependent.
Temp = 25
o
C.
C
OUT
Capacitive Load on Pins as Output – 3.5 10 pF Package and pin dependent.
Temp = 25
o
C.
Table 16. 2.7V DC GPIO Specifications
Symbol Description Min Typ Max Units Notes
R
PU
Pull up Resistor 4 5.6 8 k
Ω
R
PD
Pull down Resistor 4 5.6 8 k
Ω
V
OH
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 budget).
V
OL
Low Output Level – – 0.75 V IOL = 10 mA, Vdd = 2.4 to 3.0V (90
mA maximum combined IOL
budget).
V
IL
Input Low Level – – 0.75 V Vdd = 2.4 to 3.0.
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