CY8C24x23 Final Data Sheet
3. Electrical Specifications
3.4.4
AC Digital Block 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 ≤ 85°C, or 3.0V to 3.6V and -40°C ≤ T ≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and
A
A
are for design guidance only or unless otherwise specified.
Table 3-20. AC Digital Block Specifications
Function
Timer
Description
Min
Typ
Max
Units
ns
Notes
a
Capture Pulse Width
–
–
50
–
Maximum Frequency, No Capture
Maximum Frequency, With Capture
Enable Pulse Width
–
–
–
49.2
24.6
–
MHz
MHz
ns
4.75V < Vdd < 5.25V.
–
a
Counter
50
–
Maximum Frequency, No Enable Input
Maximum Frequency, Enable Input
–
–
49.2
24.6
MHz
MHz
4.75V < Vdd < 5.25V.
–
Dead Band Kill Pulse Width:
Asynchronous Restart Mode
20
50
–
–
–
–
ns
ns
a
a
Synchronous Restart Mode
Disable Mode
–
–
ns
50
–
Maximum Frequency
–
–
49.2
49.2
MHz
MHz
4.75V < Vdd < 5.25V.
4.75V < Vdd < 5.25V.
CRCPRS
Maximum Input Clock Frequency
–
(PRS Mode)
CRCPRS
Maximum Input Clock Frequency
–
–
24.6
MHz
(CRC Mode)
SPIM
SPIS
Maximum Input Clock Frequency
–
–
–
–
–
8.2
4.1
–
MHz
ns
Maximum Input Clock Frequency
a
Width of SS_ Negated Between Transmissions
ns
50
–
Transmitter Maximum Input Clock Frequency
Receiver Maximum Input Clock Frequency
–
16.4
49.2
MHz
MHz
–
16
4.75V < Vdd < 5.25V.
a. 50 ns minimum input pulse width is based on the input synchronizers running at 24 MHz (42 ns nominal period).
June 4, 2004
Document No. 38-12011 Rev. *F
31
CYPRESS [ CYPRESS ]
