Datasheet > ICS8308I

ICS8308I

更新时间： 2024-11-03 04:44:23

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
16页	293K
描述
LOW SKEW, 1-TO-8 DIFFERENTIAL/LVCMOS-TO-LVCMOS FANOUT BUFFER

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数据手册

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ICS8308I 数据手册

LOW SKEW, 1-TO-8 DIFFERENTIAL/

LVCMOS-TO-LVCMOS FANOUT BUFFER

ICS8308I

GENERAL DESCRIPTION

FEATURES

The ICS8308I is a low-skew, 1-to-8 Fanout Buffer

and a member of the HiPerClockS™family of High

Performance Clock Solutions from IDT. The

ICS8308I has two selectable clock inputs.The CLK,

nCLK pair can accept most differential input levels.

The LVCMOS_CLK can accept LVCMOS or LVTTL input levels.

The low impedance LVCMOS/LVTTL outputs are designed to

drive 50Ω series or parallel terminated transmission lines. The

effective fanout can be increased from 8 to 16 by utilizing the

ability of the outputs to drive two series terminated trans-

mission lines.

• Eight LVCMOS/LVTTL outputs, (7Ω typical output impedance)

• Selectable LVCMOS_CLK or differential CLK, nCLK inputs

• CLK, nCLK pair can accept the following differential

input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL

• Maximum Output Frequency: 350MHz

• Output Skew: (3.3V 5ꢀ): 100ps (maximum)

• Part to Part Skew: (3.3V 5ꢀ): 1ns (maximum)

• Supply Voltage Modes:

(Core/Output)

3.3V/3.3V

3.3V/2.5V

2.5V/2.5V

The ICS8308I is characterized for 3.3V core/3.3V output,

3.3V core/2.5V output or 2.5V core/2.5V output operation.

Guaranteed output and part-part skew characteristics make

the 8308I ideal for those clock distribution applications requiring

well defined performance and repeatability.

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

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

CLK_EN

GND

CLK_SEL

LVCMOS_CLK

CLK

VDDO

GND

V^DDO

GND

Pullup

LVCMOS_CLK

Pullup

CLK

nCLK

CLK_EN

Pulldown

nCLK

V^DD

GND

V^DDO

Pullup

CLK_SEL

14 GND

V^DDO

ICS8308I

24-Lead, 173-MIL TSSOP

4.4mm x 7.8mm x 0.925mm body package

G Package

Top View

Pullup

IDT^™/ ICS^™LVCMOS FANOUT BUFFER

ICS8308AGI REV. B OCTOBER 16, 2007

12 3 4 5 6 7...16

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