Cypress CY8C24423, CY8C24123, CY8C24223 manual AC Digital Block Specifications, Crcprs, Spim, Spis

CY8C24123

CY8C24223, CY8C24423

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 ≤ TA ≤ 85°C, or 3.0V to 3.6V and -40°C ≤ TA ≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and are for design guidance only or unless otherwise specified.

Table 29. AC Digital Block Specifications

Function	Description	Min	Typ	Max	Units	Notes
Timer	Capture Pulse Width	50a	–	–	ns
	Maximum Frequency, No Capture	–	–	49.2	MHz	4.75V < Vdd < 5.25V
	Maximum Frequency, With Capture	–	–	24.6	MHz
Counter	Enable Pulse Width	50a	–	–	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	50a	–	–	ns
	Disable Mode	50a	–	–	ns
	Maximum Frequency	–	–	49.2	MHz	4.75V < Vdd < 5.25V
CRCPRS	Maximum Input Clock Frequency	–	–	49.2	MHz	4.75V < Vdd < 5.25V
(PRS Mode)
CRCPRS	Maximum Input Clock Frequency	–	–	24.6	MHz
(CRC Mode)
SPIM	Maximum Input Clock Frequency	–	–	8.2	MHz
SPIS	Maximum Input Clock Frequency	–	–	4.1	ns
	Width of SS_ Negated Between Transmissions	50a	–	–	ns
Transmitter	Maximum Input Clock Frequency	–	–	16.4	MHz
Receiver	Maximum Input Clock Frequency	–	16	49.2	MHz	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).

Document Number: 38-12011 Rev. *G Page 32 of 43

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