CY8C9520A
CY8C9540A
CY8C9560A
Document Number: 38-12036 Rev. *I Page 19 of 32
AC Electrical Characteristics
AC GPIO Specifications
Table 24 lists 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, or 3.0 V to 3.6 V and –40 °C T
A
85 °C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 °C and
are for design guidance only or unless otherwise specified.
Figure 8. GPIO Timing Diagram
AC PWM Specifications
Table 25 lists 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, or 3.0 V to 3.6 V and –40 °C T
A
85°C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 °C and
are for design guidance only or unless otherwise specified.
Table 24. AC GPIO Specifications
Symbol Description Min Typ Max Units Notes
F
GPIO
GPIO Operating Frequency 0 – 12 MHz Normal Strong Mode
TRiseF Rise time, normal strong mode,
Cload = 50 pF
3 – 18 ns Vdd = 4.75 to 5.25 V,
10%–90%
TFallF Fall time, normal strong mode, Cload = 50 pF 2 – 18 ns Vdd = 4.75 to 5.25 V,
10%–90%
TRiseS Rise time, slow strong mode, Cload = 50 pF 10 27 – ns Vdd = 3 to 5.25 V,
10%–90%
TFallS Fall time, slow strong mode, Cload = 50 pF 10 22 – ns Vdd = 3 to 5.25 V,
10%–90%
TIOAccess IO access time – – 2.485 ms None
TPulsewidth Minimum pulse width on I/Os to assert INT
line.
5.03 – – ms No I
2
C activity or
EEPROM operation
happens during input
pulse duration.
TFallF
TFallS
TRiseF
TRiseS
90%
10%
GPIO
Pin
Output
Voltage
Table 25. AC PWM Specifications
Symbol Description Min Typ Max Units Notes
Jitter24MHzPWM 24 MHz based PWM peak-to-peak period
jitter
– 0.1 1.5 % 24 MHz, 1.5 MHz,
93.75 kHz and 367.6 Hz
(programmable)
sources.
Jitter32kHzPWM 32 kHz-based PWM peak-to-peak period
jitter
– 2.5 5.0 % 32 kHz clock source.
F24MHzPWM Input Frequency of 24 MHz based PWM 23.4 24 24.6 MHz
F32kHzPWM Input Frequency of 32 kHz based PWM 15 32 64 kHz
F1.5MHzPWM Input frequency of 1.5 MHz based PWM 1.46 1.5 1.53 MHz
