ICS9169CM-23LF IDT, Integrated Device Technology Inc, ICS9169CM-23LF Datasheet

ICS9169CM-23LF

Manufacturer Part Number

ICS9169CM-23LF

Description

IC FREQUENCY GENERATOR 28-SOIC

Manufacturer

IDT, Integrated Device Technology Inc

Type

Frequency Generatorr

Datasheet

1.ICS9169CM-23LFT.pdf (9 pages)

Specifications of ICS9169CM-23LF

Input

Clock, Crystal

Output

Clock

Frequency - Max

48MHz

Voltage - Supply

3 V ~ 3.7 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

28-SOIC

Frequency-max

48MHz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

9169CM-23LF

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General Description

Block Diagram

VDD Groups:

VDD1 = X1, X2, REF/BSEL

VDD2 = CPU1-6

VDD3 = CPU7-8 & PLL Core

VDD4 = BUS1-6

VDD5 = 48/24 MHz

The ICS9169C-23 is a low-cost frequency generator designed

specifically for Pentium-based chip set systems. The

integrated buffer minimizes skew and provides all the clocks

required. A 14.318 MHz crystal provides the reference

clock to generate standard Pentium frequencies. The CPU

clock makes gradual frequency transitions without

violating the PLL timing of internal microprocessor clock

multipliers.

Either synchronous (CPU/2) or asynchronous (32 MHz) PCI

bus operation can be selected by latching data on BSEL

input.

9169-23 Rev D 03/01/02

Frequency Generator for Pentium™ Based Systems

Integrated

Circuit

Systems, Inc.

Latched Inputs:

L1 = BSEL

L2 = FS0

L3 = FS1

L4 = FS2

3.3V±10%, 0-70

Crystal (X1, X2) = 14.31818 MHz

Functionality

ICS reserves the right to make changes in the device data identified in this publication

without further notice. ICS advises its customers to obtain the latest version of all

device data to verify that any information being relied upon by the customer is current

and accurate.

Features

• Eight selectable CPU clocks operate up to 83.3 MHz

• Maximum CPU jitter of ±200ps

• Six BUS clocks support sync or async bus operation

• 250ps skew window for CPU outputs, 500ps skew window

• CPU clocks to BUS clocks skew 1-4 ns (CPU early)

• 48 MHz clock for USB support & 24 MHz clock for FD.

• Logic inputs latched at Power-On for frequency selection

• Integrated buffer outputs drive up to 30pF loads

• 3.0V - 3.7V supply range, CPU (1:6) outputs 2.5V

• 28-pin SOIC package

for BUS outputs

saving pins as Input/Output

(2.375 - 2.6V) VDD option

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Related parts for ICS9169CM-23LF

ICS9169CM-23LF Summary of contents

Page 1

Integrated Circuit Systems, Inc. Frequency Generator for Pentium™ Based Systems General Description The ICS9169C- low-cost frequency generator designed specifically for Pentium-based chip set systems. The integrated buffer minimizes skew and provides all the clocks required. A 14.318 MHz ...

Page 2

ICS9169C-23 Pin Descriptions ...

Page 3

Shared Pin Operation - Input/Output Pins Shared Pin Operation - Input/Output, Pins 5, 28, 12 and 13 on the ICS9169C-23 serve as dual signal functions to the device. During initial power-up, they act as input pins. The logic level (voltage) ...

Page 4

ICS9169C-23 Fig. 2a Fig Fig. 2b ...

Page 5

Technical Pin Function Descriptions VDD This is the power supply to the internal logic of the device as well as the following clock output buffers: A. REF clock output buffers B. BUS clock output buffers C. Fixed clock output buffers ...

Page 6

ICS9169C-23 Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 V Logic Inputs . . . . ...

Page 7

Electrical Characteristics at 3.3V ° 3.0 – 3 – unless otherwise stated ...

Page 8

... ICS9169C-23 300 mil (Wide Body) SOIC Ordering Information ICS9169CM-23LF Example: ICS XXXX M - PPP LF SYMBOL COMMON DIMENSIONS COMMON DIMENSIONS MIN A A1 0.10 A2 2.05 B 0.33 C 0.18 D SEE VARIATIONS E 7. 10.00 h 0.25 L 0.40 N SEE VARIATIONS α VARIATIONS N MIN 28 17.70 Reference Doc.: JEDEC Publication 95, MS-013 & MO-119 ...

Page 9

Revision History Rev. Issue Date Description D 3/1/2007 Added LF ordering Information. 9 ICS9169C-23 Page # 8 ...

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