CY24242PVC datasheet(8/10 Pages) CYPRESS

8 / 10 page

CY24242

Document #: 38-07268 Rev. *B

Page 8 of 10

REF Clock Outputs (Lump Capacitance Test Load = 20 pF)

Parameter

Description

Test Condition/Comments

CPU = 66/100 MHz

Unit

Min.

Typ.

Max.

Frequency, Actual

Frequency equal to the reference

provided at pins X1, X2

14.318

MHz

Output Rise Edge Rate Measured from 0.4V to 2.0

0.5

–

V/ns

Output Fall Edge Rate Measured from 2.0V to 0.4V

0.5

–

V/ns

Duty Cycle

Measured on rising and falling edge at

1.25V

–

fST

Frequency Stabilization

from Power-up (cold

start)

Assumes full supply voltage reached

within 1 ms from power-up. Short cycles

exist prior to frequency stabilization.

––

AC Output Impedance Average value during switching

transition. Used for determining series

termination value.

–40

–

Ω

USBCLK Clock Output (Lump Capacitance Test Load = 20 pF, VDDC =2.5V)

Parameter

Description

Test Condition/Comments

CPU = 66/100 MHz

Unit

Min.

Typ.

Max.

Output Rise Edge Rate

Measured from 0.4V to 2.0

0.5

–

V/ns

Output Fall Edge Rate

Measured from 2.0V to 0.4V

0.5

–

V/ns

Duty Cycle

Measured on rising and falling edge at 1.25V

–

tJL

Jitter, Long term

Measured on rising edge at 1.25V. Maximum

difference of cycle time between two adjacent

cycles.

–

500

tJC

Jitter, Cycle-to-Cycle

Measured on rising edge at 1.25V. Maximum

difference of cycle time between two adjacent

cycles.

–

400

fST

Frequency Stabilization

from Power-up (cold start)

Assumes full supply voltage reached within

1 ms from power-up. Short cycles exist prior to

frequency stabilization.

––3

AC Output Impedance

Average value during switching transition. Used

for determining series termination value.

–40–

Ω

Ordering Information

Ordering Code

Package Type

Temperature Grade

Standard

CY24242PVC

28-pin SSOP (300 mils)

C (Commercial 0 - 70°)

CY24242PVCT

28-pin SSOP (300 mils) - Tape and Reel

C (Commercial 0 - 70°)

Lead-free

CY24242OXC

28-pin SSOP (300 mils)

C (Commercial 0 - 70°)

CY24242OXCT

28-pin SSOP (300 mils) - Tape and Reel

C (Commercial 0 - 70°)

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