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ICS9214

Rambus™ XDR™ Clock Generator

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS9214

Absolute Maximum Ratings

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 V

Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to VDD +0.5 V

Ambient Operating Temperature . . . . . . . . . . . . 0°C to +70°C

Storage Temperature . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings

are stress specifications only and functional operation of the device at these or any other conditions above those listed in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may affect product reliability.

DC Characteristics - Inputs

TA = 0°C to +70°C; Supply Voltage AVDD2.5, VDD2.5 = 2.5 V +/- 0.125V (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX UNITS

Supply Voltage

VDD2.5, AVDD

2.375

2.625

V

Supply Current

High-level input

voltage

IDD2.5, IVDD

VIHCLK

125

mA

0.6

0.95

V

Low-level input

voltage

VILCLK

-0.15

0.15

V

Crossing point voltage

VIXCLK

CLK_INT, CLK_INC

0.2

0.55

V

Difference in crossing

point voltage

Input threshold

voltage

High-level input

voltage for single-

ended CLK_IN

Low-level input

voltage for single-

ended CLK_IN

High-level input

voltage

Low-level input

voltage

High-level input

voltage - SMBus

Low-level input

voltage - SMBus

VIXCLK

VTH

0.35

VIHSE

VILSE

Singled-ended

CLK_IN1

VTH + 0.3

-0.15

VIH

VIL

VIHSMB

VILSMB

OE, SMB_A0,

SMB_A1,

BYPASS#/PLL

1.4

-0.15

SMBCLK, SMBDAT

1.4

-0.15

0.15

V

0.5VDD2.5

V

2.625

V

VTH - 0.3

V

2.625

V

0.8

V

3.4652

V

0.8

V

Notes:

1 When using singled-ended clock input, VTH is supplied to CLK_INTC as shown in Figure 2.

Duty cycle of singled-ended CLK_IN is measured at VTH

2 This range of SMBus input high voltages allows the 9214 to co-exist with 3.3V, 2.5V and 1.8V

devices on the same SMBus.

0809D—04/07/06

7

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