Datasheet > ASM2I99446-32-LT

ASM2I99446-32-LT

更新时间： 2024-01-16 15:10:44

品牌	Logo	应用领域
PULSECORE		驱动逻辑集成电路
页数	文件大小	规格书
14页	575K
描述
Low Skew Clock Driver, 99446 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X 7 MM, LQFP-32

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ASM2I99446-32-LT 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	7 X 7 MM, LQFP-32	Reach Compliance Code：	unknown
风险等级：	5.76	其他特性：	IT CAN ALSO OPERATE WITH 3.3V SUPPLY
系列：	99446	输入调节：	MUX
JESD-30 代码：	S-PQFP-G32	JESD-609代码：	e0
长度：	7 mm	逻辑集成电路类型：	LOW SKEW CLOCK DRIVER
功能数量：	1	反相输出次数：
端子数量：	32	实输出次数：	10
最高工作温度：	85 °C	最低工作温度：	-40 °C
输出特性：	3-STATE	封装主体材料：	PLASTIC/EPOXY
封装代码：	LQFP	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
传播延迟（tpd）：	5.6 ns	认证状态：	Not Qualified
Same Edge Skew-Max（tskwd）：	0.35 ns	座面最大高度：	1.6 mm
最大供电电压 (Vsup)：	2.625 V	最小供电电压 (Vsup)：	2.375 V
标称供电电压 (Vsup)：	2.5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7 mm	Base Number Matches：	1

ASM2I99446-32-LT 数据手册

July 2005

rev 0.4

ASM2I99446

2.5V and 3.3V LVCMOS Clock Distribution Buffer

Features

is specified for the extended temperature range of -40°C to

85°C.

Configurable 10 outputs LVCMOS clock

distribution buffer

Compatible to single, dual and mixed 3.3V/2.5V

Voltage supply

Wide range output clock frequency up to 250MHz

Designed for mid-range to high-performance

telecom, networking and computer applications

Supports applications requiring clock redundancy

Max. output skew of 200pS (150pS within one

bank)

Selectable output configurations per output bank

Tristatable outputs

32 lead LQFP & TQFP Packages

Pin and Function compatible with MPC9446

Ambient operating temperature range of

-40 to 85°C

The ASM2I99446 is a full static fanout buffer design

supporting clock frequencies up to 250MHz. The signals

are generated and retimed on-chip to ensure minimal skew

between the three output banks. Two independent

LVCMOS compatible clock inputs are available. This

feature supports redundant clock sources or the addition of

a test clock into the system design. Each of the three

output banks can be individually supplied by 2.5V or 3.3V

supporting mixed voltage applications. The FSELx pins

choose between division of the input reference frequency

by one or two. The frequency divider can be set individually

for each of the three output banks. The ASM2I99446 can

be reset and the outputs are disabled by deasserting the

MR/OE pin (logic high state). Asserting MR/OE will enable

the outputs.

All inputs accept LVCMOS signals while the outputs

provide LVCMOS compatible levels with the capability to

drive terminated 50Ω transmission lines. Please consult the

ASM2I99456 specification for a 1:10 mixed voltage buffer

with LVPECL compatible inputs. For series terminated

transmission lines, each of the ASM2I99446 outputs can

drive one or two traces giving the devices an effective

fanout of 1:20. The device is packaged in a 7x7mm²

32-lead LQFP and TQFP Packages.

Functional Description

The ASM2I99446 is a 2.5V and 3.3V compatible 1:10 clock

distribution buffer designed for low-voltage mid-range to

high-performance telecom, networking and computing

applications. Both 3.3V, 2.5V and dual supply voltages are

supported for mixed-voltage applications. The ASM2I99446

offers 10 low-skew outputs and 2 selectable inputs for clock

redundancy. The outputs are configurable and support 1:1

and 1:2 output to input frequency ratios. The ASM2I99446

Alliance Semiconductor

2575, Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com

Notice: The information in this document is subject to change without notice.

12 3 4 5 6 7...14

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与ASM2I99446-32-LT相关器件

型号	品牌	获取价格	描述	数据表
ASM2I99446G-32-ER	ALSC	获取价格	2.5V and 3.3V LVCMOS Clock Distribution Buffer
ASM2I99446G-32-ET	ALSC	获取价格	2.5V and 3.3V LVCMOS Clock Distribution Buffer
ASM2I99446G-32-ET	PULSECORE	获取价格	Low Skew Clock Driver, 99446 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X
ASM2I99446G-32-LR	ALSC	获取价格	2.5V and 3.3V LVCMOS Clock Distribution Buffer
ASM2I99446G-32-LR	PULSECORE	获取价格	Low Skew Clock Driver, 99446 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X
ASM2I99446G-32-LT	ALSC	获取价格	2.5V and 3.3V LVCMOS Clock Distribution Buffer
ASM2I99446G-32-LT	PULSECORE	获取价格	Low Skew Clock Driver, 99446 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X
ASM2I99447	ALSC	获取价格	3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer
ASM2I99448	ALSC	获取价格	3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer
ASM2I99448-32-ER	ALSC	获取价格	3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer

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