12

ICS94215

0442C—07/03/02

Electrical Characteristics - CPUCLK (Open Drain)

TA = 0 - 70º C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Impedance

Output High Voltage

11.2

V

Output Low Voltage

0.4

V

Output Low Current

18

mA

Rise Time

1

0.9

ns

Fall Time

1

tf2B

0.9

ns

Differential voltage-AC

1

Note 2

0.4

V

Differential voltage-DC

1

Note 2

0.2

V

Differential Crossover

Note 3

550

1100

mV

Duty Cycle

1

45

51

55

%

Skew

1

163

200

ps

Jitter, Cycle-to-cycle

1

201

250

ps

Jitter, Absolute

1

-250

250

ps

Notes:

1 - Guaranteed by design, not 100% tested in production.

3 - Vpullup(external) = 1.5V, Min = Vpullup(external)/2-150mV; Max=(Vpullup(external)/2)+150mV

Vpu

+0.6

Termination to Vpull-up(external)

2 - VDIF specifies the minimum input differential voltages (VTR-VCP) required for switching, where VTR is the "true"

input level and VCP is the "complement" input level.

Electrical Characteristics - CPU (Push-Pull)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Impedance

1

10

20

W

Output Impedance

1

10

20

W

Output High Voltage

2

V

Output Low Voltage

0.4

V

Output High Current

-19

mA

Output Low Current

19

mA

Rise Time

1

0.4

1.2

1.6

ns

Fall Time

1

0.4

1.1

1.6

ns

Duty Cycle

1

45

46.9

55

%

Skew window

0:1

43

175

ps

Skew window

0:2

142

375

ps

Jitter, Cycle-to-cycle

1

177

250

ps