Specifications

CY8C24094, CY8C24794
CY8C24894, CY8C24994
Document Number: 38-12018 Rev. AH Page 41 of 64
10.4.7 AC External Clock Specifications
The following tables list 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 are measured at 5 V and 3.3 V
at 25 °C and are for design guidance only.
10.4.8 AC Analog Output Buffer Specifications
The following tables list 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 are measured at 5 V and 3.3 V
at 25 °C and are for design guidance only.
Transmitter Input clock frequency The baud rate is equal to the input clock frequency
divided by 8.
V
DD
 4.75 V, 2 stop bits – – 49.92 MHz
V
DD
 4.75 V, 1 stop bit – – 24.6 MHz
V
DD
< 4.75 V – – 24.6 MHz
Receiver Input clock frequency The baud rate is equal to the input clock frequency
divided by 8.
V
DD
 4.75 V, 2 stop bits – – 49.92 MHz
V
DD
 4.75 V, 1 stop bit – – 24.6 MHz
V
DD
< 4.75 V – – 24.6 MHz
Table 31. AC Digital Block Specifications (continued)
Function Description Min Typ Max Unit Notes
Table 32. AC External Clock Specifications
Symbol Description Min Typ Max Units Notes
F
OSCEXT
Frequency for USB applications 23.94 24 24.06 MHz
– Duty cycle 47
50 53 %
– Power-up to IMO switch 150
– –µs
Table 33. 5-V AC Analog Output Buffer Specifications
Symbol Description Min Typ Max Units Notes
t
ROB
Rising settling time to 0.1%, 1 V Step, 100 pF load
Power = low
Power = high
–
–
–
–
2.5
2.5
µs
µs
t
SOB
Falling settling time to 0.1%, 1 V Step, 100 pF load
Power = low
Power = high
–
–
–
–
2.2
2.2
µs
µs
SR
ROB
Rising slew rate (20% to 80%), 1 V Step, 100 pF load
Power = low
Power = high
0.65
0.65
–
–
–
–
V/µs
V/µs
SR
FOB
Falling slew rate (80% to 20%), 1 V Step, 100 pF load
Power = low
Power = high
0.65
0.65
–
–
–
–
V/µs
V/µs
BW
OBSS
Small signal bandwidth, 20 mV
pp
, 3 dB BW, 100 pF load
Power = low
Power = high
0.8
0.8
–
–
–
–
MHz
MHz
BW
OBLS
Large signal bandwidth, 1 V
pp
, 3 dB BW, 100 pF load
Power = low
Power = high
300
300
–
–
–
–
kHz
kHz