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April 20, 2005
Document No. 38-12025 Rev. *G
25
CY8C21x34 Final Data Sheet
3. Electrical Specifications
3.4.3
AC Operational Amplifier Specifications
The following table lists 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, or 2.7V at 25
°
C and are for design guidance only.
3.4.4
AC Analog Mux Bus Specifications
The following table lists 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, or 2.7V at 25
°
C and are for design guidance only.
3.4.5
AC Digital Block Specifications
The following tables list 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, or 2.7V at 25
°
C and are for design guidance only.
Table 3-18. AC Operational Amplifier Specifications
Symbol
T
COMP
Description
Min
Typ
Max
Units
ns
ns
Notes
Comparator Mode Response Time, 50 mV Overdrive
100
200
Vdd
≥
3.0V.
2.4V < Vcc <
3.0V.
Table 3-19. AC Analog Mux Bus Specifications
Symbol
F
SW
Description
Min
Typ
Max
Units
MHz
Notes
Switch Rate
–
–
3.17
Table 3-20. 5V and 3.3V AC Digital Block Specifications
Function
Description
Min
Typ
Max
Units
Notes
All
Functions
Maximum Block Clocking Frequency (> 4.75V)
49.2
MHz
4.75V < Vdd < 5.25V.
Maximum Block Clocking Frequency (< 4.75V)
24.6
MHz
3.0V < Vdd < 4.75V.
Timer
Capture Pulse Width
50
a
–
–
ns
Maximum Frequency, No Capture
–
–
49.2
MHz
4.75V < Vdd < 5.25V.
Maximum Frequency, With or Without Capture
–
–
24.6
MHz
Counter
Enable Pulse Width
50
–
–
ns
Maximum Frequency, No Enable Input
–
–
49.2
MHz
4.75V < Vdd < 5.25V.
Maximum Frequency, Enable Input
–
–
24.6
MHz
Dead Band
Kill Pulse Width:
Asynchronous Restart Mode
20
–
–
ns
Synchronous Restart Mode
50
–
–
ns
Disable Mode
50
–
–
ns
Maximum Frequency
–
–
49.2
MHz
4.75V < Vdd < 5.25V.
CRCPRS
(PRS Mode)
Maximum Input Clock Frequency
–
–
49.2
MHz
4.75V < Vdd < 5.25V.
CRCPRS
(CRC Mode)
Maximum Input Clock Frequency
–
–
24.6
MHz
SPIM
Maximum Input Clock Frequency
–
–
8.2
MHz
Maximum data rate at 4.1 MHz due to 2 x over
clocking.
SPIS
Maximum Input Clock Frequency
–
–
4.1
MHz
Width of SS_ Negated Between Transmissions
50
–
–
ns