12

ICS94241

0453C—10/26/04

Electrical Characteristics - SDRAM

TA = 0 - 70°C; VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5%; CL = 30 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output High Voltage

VOH3

IOH = -28mA

2.4

V

Output Low Voltage

VOL3

IOL = 23 mA

0.4

V

Output High Current

IOH3

VOH = 2.0 V

-54

mA

Output Low Current

IOL3

VOH = 0.8 V

41

mA

Rise Time

Tr31

VOL = 0.4V, VOH = 2.4 V

0.85

2

ns

Fall Time

Tf31

VOH = 2.4V, VOL= 0.4 V

0.85

2

ns

Duty Cycle

Dt31

VT= 1.5 V

45

50

55

%

Skew1

Tsk1

VT= 1.5 V

200

500

ps

Propagation Delay

Tprop

VT= 1.5 V

5ns

1Guarenteed by design, not 100% tested in production.

Electrical Characteristics - 24MHz, 48MHz, REF

TA = 0 - 70°C; VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5%; CL = 20 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output High Voltage

VOH5

IOH = -16 mA

2.4

V

Output Low Voltage

VOL5

IOL = 9 mA

0.4

V

Output High Current

IOH5

VOH = 2.0 V

-22

mA

Output Low Current

IOL5

VOL = 0.8 V

16

mA

Rise Time

1

tr5

VOL = 0.4 V, VOH = 2.4 V

1.5

4

ns

Fall Time

1

tf5

VOH = 2.4 V, VOL = 0.4 V

1.5

4

ns

Duty Cycle

1

dt5

VT = 1.5 V

45

53

55

%

Jiter, Cycle-to-cycle (24, 48MHz)

tjcyc-cyc2B

1

VT = 1.5 V

250

500

ps

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