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74F399SC PDF预览

74F399SC

更新时间: 2024-11-05 22:49:47
品牌 Logo 应用领域
美国国家半导体 - NSC 触发器逻辑集成电路光电二极管
页数 文件大小 规格书
10页 181K
描述
Quad 2-Port Register

74F399SC 数据手册

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May 1995  
54F/74F398 54F/74F399  
#
Quad 2-Port Register  
General Description  
Features  
Y
Select inputs from two data sources  
The ’F398 and ’F399 are the logical equivalents of a quad  
2-input multiplexer feeding into four edge-triggered flip-  
flops. A common Select input determines which of the two  
4-bit words is accepted. The selected data enters the flip-  
flops on the rising edge of the clock. The ’F399 is the 16-pin  
version of the ’F398, with only the Q outputs of the flip-flops  
available.  
Y
Fully positive edge-triggered operation  
Y
Both true and complement outputsÐ’F398  
Y
Guaranteed 4000V minimum ESD protectionÐ’F399  
Package  
Commercial  
74F398PC  
Military  
Package Description  
Number  
N20A  
J20A  
20-Lead (0.300 Wide) Molded Dual-In-Line  
×
54F398DM (Note 2)  
20-Lead Ceramic Dual-In-Line  
74F398SC (Note 1)  
74F399PC  
M20B  
W20A  
E20A  
N20A  
J20A  
20-Lead (0.300 Wide) Molded Small Outline, JEDEC  
×
54F398FM (Note 2)  
54F398LM (Note 2)  
20-Lead Cerpack  
20-Lead Ceramic Leadless Chip Carrier, Type C  
20-Lead (0.300 Wide) Molded Dual-In-Line  
×
54F399DM (Note 2)  
20-Lead Ceramic Dual-In-Line  
74F399SC (Note 1)  
74F399SJ (Note 1)  
M20B  
M20D  
W20A  
E20A  
20-Lead (0.300 Wide) Molded Small Outline, JEDEC  
×
20-Lead (0.300 Wide) Molded Small Outline, EIAJ  
×
54F399FM (Note 2)  
54F399LM (Note 2)  
20-Lead Cerpack  
20-Lead Ceramic Leadless Chip Carrier, Type C  
e
Note 1: Devices also available in 13 reel. Use suffix  
SCX and SJX.  
×
Note 2: Military grade device with environmental and burn-in processing. Use suffix  
e
DMQB, FMQB and LMQB.  
Connection Diagrams  
’F398  
Pin Assignment  
for LCC  
Pin Assignment  
for DIP, SOIC and Flatpak  
TL/F/9533–5  
TL/F/9533–6  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
C
1995 National Semiconductor Corporation  
TL/F/9533  
RRD-B30M75/Printed in U. S. A.  

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