ics9134-07 Holt Integrated Circuits, Inc., ics9134-07 Datasheet

ics9134-07

Manufacturer Part Number

ics9134-07

Description

Motherboard Frequency Generator

Manufacturer

Holt Integrated Circuits, Inc.

Datasheet

1.ICS9134-07.pdf (6 pages)

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32 kHz Motherboard Frequency Generator

General Description

The ICS9134-06 and ICS9134-07 are designed to generate

clocks for all 286, 386, 486, Pentium and RISC-based mother-

boards, including laptops and notebook computers. The only

external components required are a 32.768 kHz crystal and

decoupling capacitors. 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. The chip includes three independent

clock generators plus the 32.768 kHz reference clock to pro-

duce all necessary frequencies, including real time

clock/DRAM refresh, master clock, CPU clock, keyboard

clock, floppy disk controller clock, serial communications

clock and bus clocks. Different frequencies from clocks #2 can

be selected using the frequency select pins, but clock #1 will

be at 14.318 MHz for all standard versions.

VDD32 Supply

The ICS9134-06 and ICS9134-07 have a separate power sup-

ply 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 10 A at +3.3V with the main VDD at 0V.

The frequencies and power-down options in the ICS9134-06

and ICS9134-07 are mask programmable. Customer specific

masks can be made and prototypes delivered within 6-8 weeks

from receipt of order. Integrated Circuit Systems also offers

standard versions, such as that described in this data sheet.

Block Diagram

9134-06 9134-07 RevC111695

Integrated

Circuit

Systems, Inc.

Features

Applications

Notebook/Palmtop Computers: The ICS9134-06 and

ICS9134-07 work with +3.3V and +5V and a single

32.768 kHz crystal, making it the ideal solution for generating

clocks in portables with minimum board space. The user can

save power by using this single part instead of oscillators or

other frequency generators. The ICS9134-06 and ICS9134-07

further reduce the current consumption by having the ability to

completely shut down the individual clocks when not in use, while

still maintaining the separately powered 32.768 kHz clock.

Single 32.768 kHz crystal generates all PC motherboard

clocks

3 independent clock generators

Generates CPU clocks from 4.0 to 80 MHz

Up to 5 output clocks

Separate VDD for 32 kHz clock

Power-down options available

Operates from 3.3V or 5.0V supply

Operates up to 66 MHz at 3.3V

Supports OPTi 80C463/5 and Fir

16-pin, 300-mil, SOIC package

<10 A when 32 kHz is running on VDD32

Advance Information

Fir is a trademark of Picopower Corporation.

ICS9134-06

ICS9134-07

chipsets

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ics9134-07 Summary of contents

Page 1

... SOIC package Applications Notebook/Palmtop Computers: The ICS9134-06 and ICS9134-07 work with +3.3V and +5V and a single 32.768 kHz crystal, making it the ideal solution for generating clocks in portables with minimum board space. The user can save power by using this single part instead of oscillators or other frequency generators ...

Page 2

... ICS9134-06 ICS9134-07 Pin Configuration CPUS2 VDD32 4 13 VDD 5 12 GND 6 11 24M 7 10 32K 8 16-Pin SOIC Pin Descriptions PIN PIN NUMBER NAME TYPE 1 CPUS2 VDD32 5 VDD 6 GND 7 24M 8 32K 9 KBOUT 10 PD24+KBD 11 14.3M 12 GND 13 VDD 14 CPUCLK ...

Page 3

... 3.7V, 32 kHz 2.0 DD output operating 370 AC Characteristics 15pF load, 0.8 to 2.0V - 15pF load, 2.0 to 0.8V - 15pF load, 20% to 80% 2 15pF load, 80% to 20% 2 15pF load 40 As compared with - clock period Off to 33.3 MHz - 4 to 66.6 MHz - 3 ICS9134-06 ICS9134-07 TYP MAX UNITS - 0. 0 -13 ...

Page 4

... ICS9134-06 ICS9134-07 Electrical Characteristics V = +5V 10 unless otherwise stated DD A PARAMETER SYMBOL Input Low Voltage V IL Input High Voltage V IH Input Low Current I IL Input High Current Output Low Voltage Output High Voltage Output Low Current ...

Page 5

... VDD 0.1 F VDD 0.1 F 2.2 F (Note 3) Typical 32 kHz Supply Current ICS9134-06 ICS9134-07 Notes: 1) The external components shown should be 0.1 F placed as close to the device as possible. 2) Pins 5 and 13 should be connected together externally. One decoupling capacitor may suffice for both pins. 3) May be part of system decoupling. ...

Page 6

... ICS9134-06 ICS9134-07 Ordering Information ICS9134-06M or ICS9134-07M Example: ICS XXXX-PPP M Package Type Pattern Number ( digit number for parts with ROM code patterns) Device Type (consists digit numbers) Prefix SOIC Package (wide body) M=SOIC ICS, AV=Standard Device ADVANCE INFORMATION documents contain information on new products in the sampling or preproduction phase of development ...

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