ICS9248-39 查看數據表（PDF） - Integrated Circuit Systems

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ICS9248-39

Frequency Generator & Integrated Buffers for PENTIUM/Pro™

Integrated Circuit Systems 

ICS9248 - 39

Electrical Characteristics - SDRAM

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

PARAMETER

SYMBOL

CONDITIONS

MIN TYP

Output High Voltage

Output Low Voltage

Output High Current

Output Low Current

Rise Time

Fall Time

Duty Cycle

Skew1

Propagation Delay

VOH3

VOL3

IOH3

IOL3

Tr31

Tf31

Dt31

Tsk1

Tprop

IOH = -28 mA

IOL = 23 mA

VOH = 2.0 V

VOL = 0.8 V

VOL = 0.4 V, VOH = 2.4 V

VOH = 2.4 V, VOL = 0.4 V

VT = 1.5 V

VT = 1.5 V

VT = 1.5 V

2.4 2.9

0.4

-77

41

41

1.5

1.8

45 49.5

190

3

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

MAX UNITS

V

0.4 V

-54 mA

mA

2

ns

2

ns

55 %

500 ps

5

ns

Electrical Characteristics - IOAPIC

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

PARAMETER

SYMBOL

CONDITIONS

MIN TYP

Output High Voltage VOH4B IOH = -12 mA

2 2.12

Output Low Voltage VOL4B IOL = 12 mA

0.32

Output High Current

IOH4B VOH = 1.7 V

-23

Output Low Current

Rise Time1

Fall Time1

Duty Cycle1

Jitter, One Sigma1

Jitter, Absolute1

IOL4B

Tr4B

Tf4B

Dt4B

Tj1s4B

Tjabs4B

VOL = 0.7 V

VOL = 0.4 V, VOH = 2.0 V

VOH = 2.0 V, VOL = 0.4 V

VT = 1.25 V

VT = 1.25 V

VT = 1.25 V

19

25

1.45

1.3

45

51

0.2

-1

0.5

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

MAX UNITS

V

0.4 V

-19 mA

mA

2

ns

2

ns

55

%

0.5 ns

1

ns

9

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