ICS83940-02 Integrated Circuit System, ICS83940-02 Datasheet

ICS83940-02

Manufacturer Part Number

ICS83940-02

Description

Manufacturer

Integrated Circuit System

Datasheet

1.ICS83940-02.pdf (16 pages)

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LVCMOS_CLK

standard differential input levels. The single ended clock in-

put accepts LVCMOS or LVTTL input levels.The low imped-

ance LVCMOS outputs are designed to drive 50Ω series or

parallel terminated transmission lines. The effective fanout can

be increased from 18 to 36 by utilizing the ability of the out-

puts to drive two series terminated lines.

The ICS83940-02 is characterized at full 3.3V, full 2.5V and

mixed 3.3V input and 2.5V output operating supply modes.

Guaranteed output and part-to-part skew characteristics

make the ICS83940 ideal for those clock distribution applica-

tions demanding well defined performance and repeatability.

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial

product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.

83940AY-02

HiPerClockS™

,&6

LOCK

ENERAL

CLK_SEL

nCLK0

CLK0

The ICS83940-02 is a low skew, 1-to-18 Fanout

Buffer and a member of the HiPerClockS™

family of High Performance Clock Solutions from

ICS. The 83940-02 has two selectable clock in-

puts. The CLK0, nCLK0 pair can accept most

IAGRAM

ESCRIPTION

www.icst.com/products/hiperclocks.html

PRELIMINARY

Q1 - Q16

Q17

LVCMOS_CLK

• 18 LVCMOS outputs, 7Ω typical output impedance

• Selectable LVCMOS clock or CLK0, nCLK0 input pair

• LVCMOS_CLK supports the following input types:

• CLK0, nCLK0 pair can accept the following differential input

• Maxmim output frequency up to 200MHz

• Output skew: 150ps (maximum)

• Part-to-part skew: TBDps (maximum)

• Full 3.3V, 2.5V or mixed 3.3V, 2.5V supply modes

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request

• Pin compatible with the MPC940L in single supply

IFFERENTIAL

LVCMOS or LVTTL

levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL

applications

EATURES

CLK_SEL

GND

nCLK

CLK

DDO

SSIGNMENT

7mm x 7mm x 1.4mm package body

32 31 30 29 28 27 26 25

9 10 11 12 13 14 15 16

ICS83940-02

-LVCMOS F

32-Lead LQFP

Y Pacakge

Top View

ICS83940-02

REV. A SEPTEMBER 24, 2001

ANOUT

KEW

, 1-

Q10

Q11

GND

DDO

UFFER

-18

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