ICS9155C-01CW20 IDT, Integrated Device Technology Inc, ICS9155C-01CW20 Datasheet

ICS9155C-01CW20

Manufacturer Part Number

ICS9155C-01CW20

Description

IC FREQUENCY GENERATOR 20-SOIC

Manufacturer

IDT, Integrated Device Technology Inc

Type

Frequency Generatorr

Datasheet

1.ICS9155C-01CW20T.pdf (14 pages)

Specifications of ICS9155C-01CW20

Input

Clock, Crystal

Output

Clock

Frequency - Max

220MHz

Voltage - Supply

3 V ~ 5.5 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

20-SOIC

Frequency-max

220MHz

Operating Temperature (max)

70C

Operating Temperature (min)

Package Type

SOIC

Pin Count

Mounting

Surface Mount

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

9155C-01CW20

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General Description

The AV9155C is a low cost frequency generator designed

specifically for desktop and notebook PC applications with

either 3.3V or 5.0V power supply voltage. Its CPU clocks

provide all necessary CPU frequencies for 286, 386 and 486

systems, including support for the latest speeds of processors.

The device uses a 14.318 MHz crystal to generate the CPU

and all peripheral clocks for integrated desktop motherboards.

The dual 14.318 MHz clock outputs allows one output for the

system and one to be the input to an ICS graphics frequency

generator such as the AV9194.

The CPU clock offers the unique feature of smooth, glitch-

free transitions from one frequency to the next, making this

ideal device to use whenever slowing the CPU speed. The

AV9155C makes a gradual transition between frequencies, so

that it obeys the Intel cycle-to-cycle timing specification for

486 systems. The simultaneous 2X and 1X CPU clocks offer

controlled skew to within 1.5ns (max) of each other.

ICS offers several versions of the AV9155C. The different

devices are shown below:

Low Cost 20-Pin Frequency Generator

AV9155C Rev F 12/13/00

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Features

ICS has been shipping motherboard frequency generators

since April 1990, and is the leader in the area of multiple

output clocks on a single chip. The AV9155C is a third

generation device, and uses ICS’s patented analog CMOS

phase-locked loop technology for low phase jitter. ICS offers

a broad family of frequency generators for motherboards,

graphics and other applications, including cost-effective

versions with only one or two output clocks. Consult ICS for

all of your clock generation needs.

•

Compatible with 286, 386, and 486 CPUs

Supports turbo modes

Generates communications clock, keyboard clock,

floppy disk clock, system reference clock, bus clock

and CPU clock

Output enable tristates outputs

Up to 100 MHz at 5V or 3.3V

20-pin DIP or SOIC

All loop filter components internal

Skew-controlled 2X and 1X CPU clocks

Power-down option

Pentium is a trademark of Intel Corporation.

AV9155C

Related parts for ICS9155C-01CW20

ICS9155C-01CW20 Summary of contents

Page 1

Integrated Circuit Systems, Inc. Low Cost 20-Pin Frequency Generator General Description The AV9155C is a low cost frequency generator designed specifically for desktop and notebook PC applications with either 3.3V or 5.0V power supply voltage. Its CPU clocks provide all ...

Page 2

AV9155C Pin Configuration 20-Pin DIP or SOIC Pin Descriptions for AV9155C-01, - ...

Page 3

Functionality - AV9155C-01 (Using 14.318 MHz input. All frequencies in MHz.) CLOCK#2 CPU and 2XCPU ...

Page 4

AV9155C Pin Configuration 20-Pin DIP or SOIC Pin Descriptions for AV9155C-23, - ...

Page 5

Functionality - AV9155C-23 (Using 14.318 MHz input. All frequencies in MHz.) CLOCK#2 CPU and 2XCPU ...

Page 6

AV9155C Absolute Maximum Ratings VDD referenced to GND . . . . . . . . . . . . . . . . . . . . . . 7V Voltage on I/O pins referenced to GND ...

Page 7

Electrical Characteristics 4.0 to 5.5V (5V +10%/-20%); ...

Page 8

AV9155C Electrical Characteristics at 3.3V V =3.0V to 3.7V, T °C to 70°C unless otherwise stated DD A ...

Page 9

Electrical Characteristics at 3. +3.3V±10%, T =0°C to 70°C unless otherwise stated ...

Page 10

AV9155C Actual Output Frequencies (Using 14.318 MHz input. All frequencies in MHz.) AV9155C-01 and AV9155C-02 CLOCK#2 CPU and 2XCPU ...

Page 11

AV9155C Recommended External Circuit Notes: 1. ICS recommends the use of an isolated ground plane for the AV9155C. All grounds shown on this drawing should be connected to this ground plane. This ground plane should be connected to the system ...

Page 12

AV9155C AV9155C Recommended Board Layout This is the recommended layout for the AV9155C to maximize clock performance. Shown are the power and ground connections, the ground plane, and the input/output traces. Use of the isolated ground plane and power connection, ...

Page 13

Ordering Information AV9155C-02CN20, AV9155C-23CN20, AV9155C-36CN20 Example: ICS XXXX-PPP M X#W Notes: Tape and reel packaging should be ordered with the suffix T&R. For instance, if the -01 in DIP and tape & reel is required, order the part as AV9155C-01CN20T&R. ...

Page 14

AV9155C Ordering Information AV9155C-01CW20, AV9155C-02CM20, AV9155C-23CM20, AV9155C-36CM20 Example: ICS XXXX-PPP M X ...

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