ICS8521BY IDT, Integrated Device Technology Inc, ICS8521BY Datasheet

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ICS8521BY

Manufacturer Part Number
ICS8521BY
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet

Specifications of ICS8521BY

Number Of Clock Inputs
2
Mode Of Operation
Differential
Output Frequency
500MHz
Output Logic Level
HSTL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
LQFP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
32
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS8521BYILF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS8521BYILFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS8521BYLF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS8521BYLFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
G
The ICS8521 is a low skew, 1-to-9 Differential-to-HSTL
Fanout Buffer. The ICS8521 has two selectable clock
inputs. The CLK, nCLK pair can accept most standard
differential input levels. The PCLK, nPCLK pair can accept
LVPECL, CML, or SSTL input levels. The clock enable is
internally synchronized to eliminate runt pulses on the
outputs during asynchronous assertion/deassertion of the
clock enable pin.
Guaranteed output skew, part-to-part skew and crossover
voltage characteristics make the ICS8521 ideal for today’s
most advanced applications, such as IA64 and static RAMs.
B
8521BY
CLK_SEL
CLK_EN
LOCK
ENERAL
nPCLK
PCLK
nCLK
CLK
D
IAGRAM
D
0
1
ESCRIPTION
D
LE
Q
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
www.idt.com
1
F
• 9 HSTL outputs
• Selectable differential CLK, nCLK or LVPECL clock inputs
• CLK, nCLK pair can accept the following differential input
• PCLK, nPCLK supports the following input types:
• Maximum output frequency: 500MHz
• Output skew: 50ps (maximum)
• Part-to-part skew: 250ps (maximum)
• Propagation delay: 1.8ns (maximum)
• V
• 3.3V core, 1.8V output operating supply voltages
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
P
levels: LVPECL, LVDS, HSTL, SSTL, HCSL
LVPECL, CML, SSTL
EATURES
IN
OH
D
CLK_SEL
= 1.4V (maximum)
A
CLK_EN
IFFERENTIAL
nPCLK
PCLK
SSIGNMENT
nCLK
GND
CLK
V
DD
7mm x 7mm x 1.4mm Package Body
1
2
3
4
5
6
7
8
3 2 3 1 3 0 2 9 2 8 2 7 2 6 2 5
9 1 0 1 1 1 2 1 3 1 4 1 5 16
-
32-Lead LQFP
TO
ICS8521
Y Package
-HSTL F
Top View
L
OW
ANOUT
S
ICS8521
KEW
24
23
22
21
20
19
18
17
REV. E JULY 25, 2010
V
Q3
nQ3
Q4
nQ4
Q5
nQ5
V
, 1-
B
DDO
DDO
UFFER
TO
-9

Related parts for ICS8521BY

ICS8521BY Summary of contents

Page 1

G D ENERAL ESCRIPTION The ICS8521 is a low skew, 1-to-9 Differential-to-HSTL Fanout Buffer. The ICS8521 has two selectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The PCLK, nPCLK pair can accept LVPECL, CML, ...

Page 2

ABLE IN ESCRIPTIONS ...

Page 3

T 3A ABLE ONTROL NPUT UNCTION ...

Page 4

BSOLUTE AXIMUM ATINGS Supply Voltage Inputs Outputs Continuous Current Surge Current Package Thermal Impedance, θ JA Storage Temperature, T STG T 4A ABLE OWER UPPLY HARACTERISTICS S ...

Page 5

T 4D. LVPECL DC C ABLE HARACTERISTICS ...

Page 6

P ARAMETER 3.3V ± 5% 1.8V ± 0. DDO HSTL GND = 0V 3.3V C /1. ORE UTPUT OAD nQx Qx nQy Qy t sk( UTPUT KEW nCLK, nPCLK CLK, PCLK ...

Page 7

IRING THE IFFERENTIAL NPUT TO Figure 2 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = V generated by the bias resistors R1, R2 and C1. This bias ...

Page 8

IFFERENTIAL LOCK NPUT NTERFACE The CLK /nCLK accepts LVDS, LVPECL, HSTL, SSTL, HCSL and other differential signals. Both V SWING V and V input requirements. Figures show PP CMR interface examples for the ...

Page 9

LVPECL LOCK NPUT NTERFACE The PCLK /nPCLK accepts LVPECL, CML, SSTL and other differential signals. Both V and V SWING input requirements. Figures show interface and V CMR examples for the PCLK/nPCLK input driven ...

Page 10

This section provides information on power dissipation and junction temperature for the ICS8521. Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS8521 is the sum of the core power plus the power ...

Page 11

Calculations and Equations. The purpose of this section is to derive the power dissipated into the load. HSTL output driver circuit and termination are shown in Figure 5. F IGURE T o calculate worst case power dissipation into the ...

Page 12

ABLE VS IR LOW ABLE FOR JA Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in the second row ...

Page 13

ACKAGE UTLINE UFFIX FOR EAD ABLE ...

Page 14

ABLE RDERING NFORMATION ...

Page 15

...

Page 16

We’ve Got Your Timing Solution. 6024 Silver Creek Valley Road San Jose, CA 95138 © 2010 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS are trademarks of ...

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