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B9940LBL PDF预览

B9940LBL

更新时间: 2024-01-14 22:15:48
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 驱动逻辑集成电路
页数 文件大小 规格书
7页 38K
描述
Low Skew Clock Driver, 18 True Output(s), 0 Inverted Output(s), PQFP32, LQFP-32

B9940LBL 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QFP包装说明:LQFP-32
针数:32Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.91
其他特性:ALSO OPERATABLE AT 3.3V输入调节:DIFFERENTIAL MUX
JESD-30 代码:S-PQFP-G32JESD-609代码:e0
长度:7 mm逻辑集成电路类型:LOW SKEW CLOCK DRIVER
最大I(ol):0.02 A功能数量:1
反相输出次数:端子数量:32
实输出次数:18最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:LQFP封装等效代码:QFP32,.35SQ,32
封装形状:SQUARE封装形式:FLATPACK, LOW PROFILE
峰值回流温度(摄氏度):240电源:2.5/3.3 V
Prop。Delay @ Nom-Sup:5.2 ns传播延迟(tpd):5.2 ns
认证状态:Not QualifiedSame Edge Skew-Max(tskwd):0.2 ns
座面最大高度:1.6 mm子类别:Clock Drivers
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 (Sn/Pb)
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:30
宽度:7 mmBase Number Matches:1

B9940LBL 数据手册

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B9940L  
2.5V / 3.3V, 200 MHz, 1:18 Clock Distribution Buffer  
Description  
Product Features  
The B9940L is a low voltage clock distribution buffer  
200MHz Clock Support  
with the capability to select either a differential LVPECL  
or a LVCMOS/LVTTL compatible input clock. The two  
clock sources can be used to provide for a test clock as  
well as the primary system clock. All other control inputs  
are LVCMOS/LVTTL compatible. The eighteen outputs  
are 2.5V or 3.3V compatible and can drive two series  
terminated 50transmission lines. With this capability  
the B9940L has an effective fan-out of 1:36. Low  
output-to-output skews make the B9940L an ideal clock  
distribution buffer for nested clock trees in the most  
demanding of synchronous systems.  
LVPECL or LVCMOS/LVTTL Clock Input  
LVCMOS/LVTTL Compatible Inputs  
18 Clock Outputs: Drive up to 36 Clock Lines  
150ps Maximum Output-to-Output Skew  
Dual or Single Supply Operation:  
3.3V Core and 3.3V Outputs  
3.3V Core and 2.5V Outputs  
2.5V Core and 2.5V Outputs  
Pin Compatible with MPC940L  
Industrial Temp. Range: -40°C to +85°C  
32-Pin LQFP Package  
Pin Configuration  
Block Diagram  
VDD  
VDDC  
PECL_CLK  
PECL_CLK#  
0
18  
Q0-Q17  
1
TCLK  
TCLK_SEL  
VSS  
VSS  
TCLK  
1
2
3
4
5
6
7
8
24  
23  
22  
21  
Q6  
Q7  
Q8  
VDD  
TCLK_SEL  
PECL_CLK  
PECL_CLK#  
VDD  
B9940L 20 Q9  
19  
18  
17  
Q10  
Q11  
VSS  
Figure 1  
VDDC  
Cypress Semiconductor Corporation  
525 Los Coches St.  
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571  
http://www.cypress.com  
Document#: 38-07105 Rev. **  
5/24/2001  
Page 1 of 7  

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