CY8C20111_11 Datasheet, PDF (31/43 Pages) Cypress Semiconductor – CapSense Express – One Button and Two Button Capacitive Controllers

CY8C20111, CY8C20121
14. AC Electrical Specifications
14.1 AC Chip-Level Specifications
14.1.1 5-V and 3.3-V AC Chip-Level Specifications
Parameter Description
Min
Typ
Max
F_32K1
Internal low-speed oscillator (ILO) frequency 15
32
64
t_XRST
External reset pulse width
10
–
–
t_POWERUP Time from end of POR to CPU executing
–
150
–
code
SR_{POWER_} Power supply slew rate
UP
–
–
250
14.1.2 2.7-V AC Chip-Level Specifications
Parameter Description
Min
Typ
Max
F_32K1
Internal low-speed oscillator (ILO) frequency 8
32
96
t_XRST
External reset pulse width
10
–
–
t_POWERUP Time from end of POR to CPU executing
–
600
–
code
SR_{POWER_} Power supply slew rate
UP
–
–
250
14.2 AC GPIO Specifications
14.2.1 5-V and 3.3-V AC GPIO Specifications
Parameter
Description
t_Rise
Rise time, strong mode,
Cload = 50 pF
t_Fall
Fall time, strong mode,
Cload = 50 pF
Min
Max
15
80
10
50
Units Notes
kHz Calculations during sleep operations are
done based on ILO frequency.
Us
ms
V/ms
Units Notes
kHz Calculations during sleep operations are
done based on ILO frequency.
Us
ms
V/ms
Unit
Notes
ns
V_DD = 3.10 V to 3.6 V and 4.75 V to 5.25
V, 10% to 90%
ns
V_DD = 3.10 V to 3.6 V and 4.75 V to 5.25
V, 10% to 90%
14.2.2 2.7-V AC GPIO Specifications
Parameter
Description
t_Rise
Rise time, strong mode,
Cload = 50 pF
t_Fall
Fall time, strong mode,
Cload = 50 pF
Min
Max
Unit
Notes
15
100
ns
V_DD = 2.4 V to 2.90 V, 10% to 90%
10
70
ns
V_DD = 2.4 V to 2.90 V, 10% to 90%
14.3 AC I²C Specifications
Parameter
Description
F_SCLI2C
SCL clock frequency
t_HDSTAI2C
t_LOWI2C
t_HIGHI2C
t_SUSTAI2C
Hold time (repeated) START condition. After
this period, the first clock pulse is generated
LOW period of the SCL clock
HIGH period of the SCL clock
Setup time for a repeated START condition
Standard
Mode
Min Max
0 100
4.0 –
Fast Mode
Min Max
0 400
0.6 –
Units
Notes
kbps
µs
Fast mode not supported for
V_DD < 3.0 V
4.7 – 1.3 –
µs
4.0 – 0.6 –
µs
4.7 – 0.6 –
µs
Document Number: 001-53516 Rev. *G
Page 31 of 43
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