AV9155-36W20 datasheet, PDF - EEWORLD Datasheet

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AV9155-36W20: DescriptionClock Generator, CMOS, PDSO20; CategoryThe embedded processor and controller Microcontrollers and processors; File Size388KB，11 Pages; ManufacturerIDT (Integrated Device Technology)

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AV9155-36W20 Overview

Clock Generator, CMOS, PDSO20

AV9155-36W20 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	SOIC
package instruction	SOP, SOP20,.4
Contacts	20
Reach Compliance Code	unknown
Is Samacsys	N
JESD-30 code	R-PDSO-G20
JESD-609 code	e0
Number of terminals	20
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP20,.4
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
power supply	5 V
Certification status	Not Qualified
Maximum slew rate	80 mA
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Base Number Matches	1

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Integrated

Circuit

Systems, Inc.

AV9155

Low Cost 20-Pin Frequency Generator

General Description

The

AV9155

is a low cost frequency generator designed spe-

cifically for desktop and notebook PC applications. Its CPU

clocks provide all necessary CPU frequencies for 286, 386 and

486 systems, including support for the latest speeds of proces-

sors. 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

AV9155

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

AV9155.

The different devices

are shown below:

Features

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

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

AV9155

is a third generation

device, and uses ICSs 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.

PART

DESCRIPTION

AV9155C-01 Motherboard clock generator with 16 MHz BUS CLK

AV9155C-02 Motherboard clock generator with 32 MHz BUS CLK

AV9155C-23 Includes Pentium™ frequencies

AV9155C-36 Features a special 40 MHz SCSI clock

Block Diagram

Pentium is a trademark of Intel Corporation.

9155 Rev B 8/24/98

AV9155-36W20 Related Products

	AV9155-36W20	AV9155-23W20	AV9155-02W20
Description	Clock Generator, CMOS, PDSO20	Clock Generator, CMOS, PDIP20	Processor Specific Clock Generator, 100MHz, CMOS, PDSO20, 0.300 INCH, SOIC-20
Is it Rohs certified?	incompatible	incompatible	incompatible
Parts packaging code	SOIC	SOIC	SOIC
Contacts	20	20	20
Reach Compliance Code	unknown	unknown	unknown
JESD-30 code	R-PDSO-G20	R-PDIP-T20	R-PDSO-G20
Number of terminals	20	20	20
Maximum operating temperature	70 °C	70 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	DIP	SOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	IN-LINE	SMALL OUTLINE
Certification status	Not Qualified	Not Qualified	Not Qualified
Nominal supply voltage	5 V	5 V	5 V
surface mount	YES	NO	YES
technology	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	GULL WING	THROUGH-HOLE	GULL WING
Terminal pitch	1.27 mm	2.54 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL
Maker	IDT (Integrated Device Technology)	-	IDT (Integrated Device Technology)
package instruction	SOP, SOP20,.4	DIP, DIP20,.3	-
JESD-609 code	e0	e0	-
Encapsulate equivalent code	SOP20,.4	DIP20,.3	-
power supply	5 V	5 V	-
Maximum slew rate	80 mA	80 mA	-
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-
Base Number Matches	1	1	-

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