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参数资料
| 型号： | ICS83948AY |
| 元件分类： | 时钟及定时 |
| 英文描述： | LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32 |
| 文件页数： | 1/11页 |
| 文件大小： | 143K |
| 代理商： | ICS83948AY |
83948AY
www.icst.com/products/hiperclocks.html
REV. A JANUARY 7, 2002
1
Integrated
Circuit
Systems, Inc.
ICS83948
LOW SKEW, 1-TO-12
DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
PRELIMINARY
GENERAL DESCRIPTION
The ICS83948 is a low skew, 1-to-12 Differen-
tial-to-LVCMOS Fanout Buffer and a member of
the HiPerClockS family of High Performance
Clock Solutions from ICS. The ICS83948 has
two selectable clock inputs. The CLK, nCLK pair
can accept most standard differential input levels. The
LVCMOS_CLK can accept LVCMOS or LVTTL input levels.
The low impedance LVCMOS outputs are designed to drive
50
series or parallel terminated transmission lines. The
effective fanout can be increased from 12 to 24 by utilizing
the ability of the outputs to drive two series terminated lines.
The ICS83948 is characterized at 3.3V core/3.3V output.
Guaranteed output and part-to-part skew characteristics
make the ICS83948 ideal for those clock distribution applica-
tions demanding well defined performance and repeatability.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
12 LVCMOS outputs
Selectable LVCMOS clock or differential CLK, nCLK inputs
CLK, nCLK pair can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
LVCMOS_CLK accepts the following input levels:
LVCMOS or LVTTL
Maximum output frequency up to 250MHz
Output skew: 350ps (maximum)
Part to part skew: 1.5ns (maximum)
3.3V core, 3.3V output
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
Pin compatible with the MPC948/948L
HiPerClockS
,&6
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
32 31 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
GND
Q4
VDDO
Q5
GND
Q6
VDDO
Q7
CLK_SEL
LVCMOS_CLK
CLK
nCLK
CLK_EN
OE
VDD
GND
Q8
V
DDO
Q9
GND
Q10
V
DDO
Q11
Q3
V
DDO
Q2
GND
Q1
V
DDO
Q0
GND
ICS83948
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
LVCMOS_CLK
CLK
nCLK
1
0
CLK_EN
CLK_SEL
D
Q
LE
OE
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 |
|---|---|
| ICS83948AYI | 制造商:ICS 制造商全称:ICS 功能描述:LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER |
| ICS83948AYI01 | 制造商:ICS 制造商全称:ICS 功能描述:LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER |
| ICS83948AYI-01 | 制造商:ICS 制造商全称:ICS 功能描述:LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER |
| ICS83948AYI-01LF | 功能描述:IC CLOCK BUFFER MUX 2:12 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 |
| ICS83948AYI-01LFT | 功能描述:IC CLOCK BUFFER MUX 2:12 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 |
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