Cypress Semiconductor CY8C24894 Manual de usuario descargar pdf (Pagina 34)

CY8C24094, CY8C24794

CY8C24894, CY8C24994

Document Number: 38-12018 Rev. *Q Page 34 of 48

10.4.5 AC Low Power Comparator 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, 3.0V to 3.6V and -40°C ≤ T

≤ 85°C, or 2.4V to 3.0V and -40°C ≤ T

≤ 85°C, respectively. Typical parameters

apply to 5V at 25

°C and are for design guidance only.

10.4.6 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

are for design guidance only.

Table 10-21. AC Low Power Comparator Specifications

Symbol Description Min Typ Max Units Notes

RLPC

LPC response time – – 50 μs ≥ 50 mV overdrive comparator

reference set within V

REFLPC

Table 10-22. AC Digital Block Specifications

Function Description Min Typ Max Units Notes

Timer Capture Pulse Width 50

[15]

– – ns

Maximum Frequency, No Capture – – 49.92 MHz 4.75V < Vdd < 5.25V.

Maximum Frequency, With Capture – – 25.92 MHz

Counter Enable Pulse Width 50

[15]

– – ns

Maximum Frequency, No Enable Input – – 49.92 MHz 4.75V < Vdd < 5.25V.

Maximum Frequency, Enable Input – – 25.92 MHz

Dead

Band

Kill Pulse Width:

Asynchronous Restart Mode 20 – – ns

Synchronous Restart Mode 50

[15]

– – ns

Disable Mode 50

[15]

– – ns

Maximum Frequency – – 49.92 MHz 4.75V < Vdd < 5.25V.

CRCPRS

(PRS

Mode)

Maximum Input Clock Frequency – – 49.92 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

[15]

– – ns

Trans-

mitter

Maximum Input Clock Frequency – – 24.6 MHz Maximum data rate at 3.08 MHz

due to 8 x over clocking.

Receiver Maximum Input Clock Frequency – – 24.6 MHz Maximum data rate at 3.08 MHz

due to 8 x over clocking.

Note

15. 50 ns minimum input pulse width is based on the input synchronizers running at 24 MHz (42 ns nominal period).

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