参数资料
型号: ICS8521BYI
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 8521 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBA, LQFP-32
文件页数: 1/15页
文件大小: 370K
代理商: ICS8521BYI
Integrated
Circuit
Systems, Inc.
ICS8521I
LOW SKEW, 1-TO-9
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
8521BYI
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 17, 2005
1
PRELIMINARY
GENERAL DESCRIPTION
The ICS8521I is a low skew, 1-to-9 Differential-
to-HSTL Fanout Buffer and a member of the
HiPerClockSfamily of High Performance Clock
Solutions from ICS. The ICS8521I has two se-
lectable 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 asser tion/
deassertion of the clock enable pin.
Guaranteed output skew, part-to-part skew and crossover
voltage characteristics make the ICS8521I ideal for today’s
most advanced applications, such as IA64 and static RAMs.
HiPerClockS
ICS
FEATURES
Nine HSTL outputs
Selectable differential CLK, nCLK or LVPECL clock inputs
CLK, nCLK pair can accept the following differential
input levels: LVPECL, LVDS, HSTL, SSTL, HCSL
PCLK, nPCLK supports the following input types:
LVPECL, CML, SSTL
Maximum output frequency: 500MHz
Output skew: 25ps (typical)
Part-to-part skew: 200ps (typical)
Propagation delay: 1.3ns (typical)
V
OH = 1.4V (maximum)
3.3V core, 1.8V output operating supply voltages
-40°C to 85°C ambient operating temperature
Available in both standard and lead-free RoHS
compliant packages
BLOCK DIAGRAM
PIN ASSIGNMENT
32 3 1 30 29 28 27 26 25
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
VDDO
Q3
nQ3
Q4
nQ4
Q5
nQ5
VDDO
ICS8521I
V
DDO
Q6
nQ6
Q7
nQ7
Q8
nQ8
V
DDO
V
DDO
nQ2
Q2
nQ1
Q1
nQ0
Q0
V
DDO
VDD
CLK
nCLK
CLK_SEL
PCLK
nPCLK
GND
CLK_EN
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
CLK
nCLK
PCLK
nPCLK
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
D
Q
LE
CLK_EN
CLK_SEL
0
1
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.
DATA SHEET
ICS8521I
IDT / ICS LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-HSTL FANOUT BUFFER
ICS8521I
1
LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-HSTL FANOUT
BUFFER
相关PDF资料
PDF描述
ICS8521BYI 8521 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
ICS8521BYILF 8521 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
ICS85222AM-01LFT LOW SKEW CLOCK DRIVER, PDSO8
ICS85222AM-02T 85222 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS85222AMLFT LOW SKEW CLOCK DRIVER, PDSO8
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