参数资料
型号: ICS8521AYYLFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 9 INVERTED OUTPUT(S), PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, 0.80 MM PITCH, LQFP-32
文件页数: 1/6页
文件大小: 189K
代理商: ICS8521AYYLFT
Integrated
Circuit
Systems, Inc.
ICS8521
LOW SKEW 1-TO-9 LVHSTL
FANOUT BUFFER
8521
www.icst.com
REV. A - AUGUST 1, 2000
1
PRELIMINARY
HiPerClockS
,&6
GENERAL DESCRIPTION
The ICS8521 is a very low skew, 1-to-9 LVHSTL
Fanout
Buffer
and a member of the
HiPerClockS family of High Performance
Clock Solutions from ICS. The ICS8521 has
selectable clock inputs that accept either HSTL
or PECL input levels. The output enable is synchronous which
eliminates the runt clock pulses which occur during asyn-
chronous enabling and disabling of the outputs.
Guaranteed output skew, part-to-part skew and crossover
voltage characteristics make the ICS8521 ideal for interfac-
ing to todays most advanced microprocessor and static
RAMs.
FEATURES
9 LVHSTL outputs each with the ability to drive 50 to ground
Selectable differential HSTL or PECL clock inputs
Voh(max) = 1.2V
0.68V ≤ Vcrossover ≤ 0.9V
Output frequency up to 500MHz
50ps output skew
3.3V core, 1.8V output operating supply voltages
32 lead low-profile QFP(LQFP), 7mm x 7mm x 1.4mm
package body, 0.8mm package lead pitch
0°C to 70°C ambient operating temperature
BLOCK DIAGRAM
PIN ASSIGNMENT
3 2 3 1 3 0 2 9 2 8 2 7 2 6 2 5
9 10 11 12 13 14 15 1 6
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
VCCO
Q3
nQ3
Q4
nQ4
Q5
nQ5
VCCO
ICS8521
VCCO
Q6
nQ6
Q7
nQ7
Q8
nQ8
VCCO
nQ2
Q2
nQ1
Q1
nQ0
Q0
VCCO
VCC
HSTL_CLK
nHSTL_CLK
CLK_SEL
PECL_CLK
nPECL_CLK
GND
OE
HCLK
nHCLK
PCLK
nPCLK
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
0
1
nD
Q
LE
OE
CLK_SEL
32-Lead LQFP
Y Package
Top View
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.
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相关代理商/技术参数
参数描述
ICS8521BY 制造商:ICS 功能描述:
ICS8521BYILF 功能描述:IC CLOCK BUFFER MUX 2:9 32-LQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件
ICS8521BYILFT 功能描述:IC CLOCK BUFFER MUX 2:9 32-LQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件
ICS8521BYLF 功能描述:IC CLOCK BUFFER MUX 2:9 32-LQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件
ICS8521BYLFT 功能描述:IC CLOCK BUFFER MUX 2:9 32-LQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件