ICS83940DI datasheet(1/19 Pages) IDT

部件名	ICS83940DI

功能描述	Operating supply modes

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制造商	IDT [Integrated Device Technology]

网页	http://www.idt.com

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DATA SHEET

ICS83940DYI REVISION C MARCH 20, 2013

1

Low Skew, 1-to18

LVPECL-to-LVCMOS/LVTTL Fanout Buffer

ICS83940DI

General Description

The ICS83940DI is a low skew, 1-to-18 LVPECL- to-LVCMOS/LVTTL

Fanout Buffer. The ICS83940DI has two selectable clock inputs. The

PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels.

The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The

low impedance LVCMOS/LVTTL outputs are designed to drive 50



series or parallel terminated transmission lines.

The ICS83940DI is characterized at full 3.3V and 2.5V or mixed 3.3V

core, 2.5V output operating supply modes. Guaranteed output and

part-to-part skew characteristics make the ICS83940DI ideal for

those clock distribution applications demanding well defined

performance and repeatability.

Block Diagram

Features

• Eighteen LVCMOS/LVTTL outputs

• Selectable LVCMOS_CLK or LVPECL clock inputs

• PCLK, nPCLK pair can accept the following differential input

levels: LVPECL, CML, SSTL

• LVCMOS_CLK supports the following input types: LVCMOS or

LVTTL

• Maximum output frequency: 250MHz

• Output skew: 150ps (maximum)

• Part-to-part skew: 750ps (maximum)

• Operating supply modes:

• Core/Output

3.3V/3.3V

3.3V/2.5V

2.5V/2.5V

• -40°C to 85°C ambient operating temperature

• Lead-free (RoHS 6) packaging

Pin Assignments

32 Lead VFQFN

5mm x 5mm x 0.925mm package body

K Package

Top View

32-Lead LQFP

7mm x 7mm x 1.4mm package body

Y Package

Top View

CLK_SEL

PCLK

nPCLK

LVCMOS_CLK

0

1

18

Q0:Q17

Pulldown

Pullup/Pulldown

910 11 12 13 14 15 16

32 31 30

29 28

27 26 25

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

GND

LVCMOS_CLK

CLK_SEL

PCLK

nPCLK

VDD

VDDO

Q6

Q7

Q8

VDD

Q9

Q10

Q11

GND

ICS83940DI

32 31 30 29 28 27 26 25

910 11 12 13 14 15 16

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

Q6

Q7

Q8

VDD

Q9

Q10

Q11

GND

LVCMOS_CLK

CLK_SEL

PCLK

nPCLK

VDD

VDDO

ICS83940DI

类似零件编号 - ICS83940DI

制造商	部件名	数据表	功能描述
Integrated Circuit Syst...	ICS83940DI	112Kb / 13P	LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER REV. A DECEMBER 12, 2002
Integrated Device Techn...	ICS83940DI	237Kb / 19P	Low Skew, 1-to18 LVPECL-to-LVCMOS/LVTTL Fanout Buffer
Renesas Technology Corp	ICS83940DI	582Kb / 17P	Low Skew, 1 to 18 LVPECL to LVCMOS/LVTTL Fanout Buffer January 7, 2020
Integrated Circuit Syst...	ICS83940DI01	262Kb / 13P	LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER REV. A MARCH 1, 2004
Integrated Circuit Syst...	ICS83940DI01L	262Kb / 13P	LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER REV. A MARCH 1, 2004

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