Datasheet > IMISG502PX

IMISG502PX

更新时间： 2024-11-20 23:58:39

品牌	Logo	应用领域
其他 - ETC		时钟发生器
页数	文件大小	规格书
7页	91K
描述
CPU System Clock Generator

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IMISG502PX 数据手册

IMISG502

SYSTEM CLOCK CHIP

April 1996

CMOS LSI

SPECTRUM SPREAD CLOCK

PRODUCT FEATURES

PRODUCT DESCRIPTION

The IMISG502 is a spectrum spread clock generator

specially designed for personal computers, laser

printers and other digital systems. IMISG502 uses a

patented concept to generate popular clock frequencies

that are intentionally broadbanded to reduce

Generates CPU Clock Signals for Microprocessor

Systems

Reduces Measured EMI by 10 db nominal

4V to 7V Operating Supply Range

Supports 80286-, 80386-, 80486-, PentiumÔ - and

29000-Based Designs

electromagnetic

interference.

The

IMISG502

attenuates the radiated emission amplitudes from

products associated with either the clock harmonics or

any signals derived from the clock signals nominally 10

dB and could significantly reduce the cost of complying

with the regulatory requirements.

Wide Range of Selectable Output Frequencies

including 40, 33.3, 16.7

Single, Low Cost Crystal Used as Reference

Frequency

PRCLK is the broadbanded output and can be

programmed to generate 40, 33.3, 16.7 and 12 MHz

with S0 and S1 pins. A single, low cost external crystal

is required as reference frequency for the synthesizer.

Output modulation function can be turned off with the

SSON pin. Several power down modes add the

flexibility to operate the device in a completely static

mode to reduce standby currents and simplify system

board tests.

Glitch-Free Switching

50% Duty Cycle

Power Down Mode for Low Power Consumption

TTL or CMOS Compatible Outputs with 6 mA Drive

Capability

Low, Short and Long Term Jitter (cycle-to-cycle jitter

less than 50 ps)

P-DIP/SOIC DIAGRAM

16 PIN PDIP and 16 PIN SOIC (300 mil body)

package options

VDD

OSCin

OSCout

VSS

MPSEL

AVDD

TEST

VDD

MPCLK

VSS

PRCLK

AVSS

LF1

BLOCK DIAGRAM

44.2

MHZ

/4 or /12

MPCLK

REF

SSON

APPLICATIONS

MPSEL

The IMISG502 eliminates the need for multiple

oscillators and generates the CPU clock signals for

personal computers, laser printers and other digital

systems. Supports 8086-, 80286-, 80386-, 80486-,

PentiumÔ - and 29000-based designs. IMISG502 can

be used with laptop or notebook computers to save

power by running the system slower than normal CPU

speeds or completely disabling the clocks in standby

mode.

SPECTRUM

SPREAD

CLOCK

PRCLK

TEST

SSOR

GEN

INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.

MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571

Page 1 of 7

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与IMISG502PX相关器件

型号	品牌	获取价格	描述	数据表
IMISG502XB	CYPRESS	获取价格	Processor Specific Clock Generator, 40MHz, CMOS, PDSO16
IMISG504APB	CYPRESS	获取价格	Processor Specific Clock Generator, 120MHz, CMOS, PDIP16, PLASTIC, DIP-16
IMISG504AXB	CYPRESS	获取价格	Processor Specific Clock Generator, 120MHz, CMOS, PDSO16, 0.300 INCH, SOIC-16
IMISG508APB	ETC	获取价格	Miscellaneous Clock Generator
IMISG508AXB	ETC	获取价格	Miscellaneous Clock Generator
IMISG508PB	CYPRESS	获取价格	Processor Specific Clock Generator, 40MHz, CMOS, PDIP16, PLASTIC, DIP-16
IMISG509	ETC	获取价格	REDUCED EMI CLOCK CHIP CMOS LSI SPECTRUM SPREAD CLOCK GENERATOR
IMISG509AXB	CYPRESS	获取价格	Processor Specific Clock Generator, 60MHz, CMOS, PDSO16
IMISG509PB	ETC	获取价格	Miscellaneous Clock Generator
IMISG509XB	ETC	获取价格	Miscellaneous Clock Generator

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