Datasheet > ICS9131-01CN16

ICS9131-01CN16

更新时间： 2024-09-16 22:40:15

品牌	Logo	应用领域
矽成 - ICSI		晶体外围集成电路光电二极管时钟
页数	文件大小	规格书
8页	298K
描述
32 KhZ Motherboard Frequency Generator

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ICS9131-01CN16 数据手册

ICS9131

Integrated

Circuit

Systems, Inc.

32 KhZ Motherboard Frequency Generator

General Description

Features

The ICS9131 offers a tiny footprint solution for generating

a selectable CPU clock from a 32.768 kHz crystal. The device

allows a variety of microprocessors to be clocked by changing

the state of address lines FS0, FS1, and FS2. The ICS9131 is

the ideal solution for replacing high speed oscillators and for

reducing clock speeds to save power in computers. The

device provides smooth, glitch-free frequency transitions so

that the CPU can continue to operate during slow down or

speed up. The rate of frequency change makes the ICS9131

compatible with all 386DX, 386SX, 486DX, 486DXZ, 486SX

and Pentium™ microprocessors.

•

Single 32.768 kHz crystal generates system clock and

selectable CPU clock

Generates CPU clocks from 8 MHz to 100 MHz.

Operates from 3.3V or 5.0V supply

Operates up to 66 MHz at 3.3V

Separate VDD for 32 kHz clock enables it to run from

battery

STOPCLK feature allows for a glitch-free turn-on and

Pen-turn-off of the CPU clock to static processors

Output enable tristates outputs

•

16-pin PDIP or SOIC package

Frequency selects allow for a smooth transition of

theCPUCLK

The ICS9131 is driven from a single 32.768 kHz crystal. The

only external components required are the crystal and a 10M

ohm resistor. The device generates the 14.318 MHz system

clock, eliminating the need for a 14.318 MHz crystal. High-

Performance applications may require high speed clock

termination components.

Pin Configuration

VDD32 Supply

The ICS9131 has a separate power supply for the 32.768 kHz

oscillator circuitry. This allows the 32 kHz clock to run from

a battery or other source while the main power to the chip is

disconnected. The VDD32 supply is guaranteed to operate

down to +2.0V, with the clock consuming less than 10µA at

+3.3V and the main VDD at 0V.

The frequencies and power-down options in the ICS9131 are

mask programmable. Customer specific masks can be made

and prototypes delivered within 6-8 weeks from receipt of

order. ICS also offers standard versions, such as those de-

scribed in this data sheet.

16-Pin DIP or SOIC

Block Diagram

Pentium is a trademark of Intel.

9131 Rev B 052897P

12 3 4 5 6 7 8

中文翻译

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与ICS9131-01CN16相关器件

型号	品牌	获取价格	描述	数据表
ICS9131-01CN16LF	IDT	获取价格	Processor Specific Clock Generator, 80.19MHz, CMOS, PDIP16, PLASTIC, DIP-16
ICS9131-01CN16W	IDT	获取价格	Processor Specific Clock Generator, 100MHz, PDIP16, 0.600 INCH, PLASTIC, DIP-16
ICS9131-01CS16	ICSI	获取价格	32 KhZ Motherboard Frequency Generator
ICS9131-01CS16W	IDT	获取价格	Processor Specific Clock Generator, 80.19MHz, CMOS, PDSO16, 0.300 INCH, SOIC-16
ICS9131-01CS16WLF	IDT	获取价格	Processor Specific Clock Generator, 80.19MHz, CMOS, PDSO16, 0.300 INCH, SOIC-16
ICS9131M16	IDT	获取价格	Processor Specific Clock Generator, 80.19MHz, CMOS, PDSO16, SOIC-16
ICS9131N16	IDT	获取价格	暂无描述
ICS9131N16LF	IDT	获取价格	Processor Specific Clock Generator, 80.19MHz, CMOS, PDIP16, PLASTIC, DIP-16
ICS9132-01CN20	ETC	获取价格	CPU System Clock Generator
ICS9132-01CW20	ETC	获取价格	CPU System Clock Generator

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