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54ACQ245D PDF预览

54ACQ245D

更新时间: 2024-02-08 05:38:41
品牌 Logo 应用领域
美国国家半导体 - NSC 总线驱动器总线收发器
页数 文件大小 规格书
8页 157K
描述
Quiet Series Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs

54ACQ245D 技术参数

生命周期:Obsolete零件包装代码:DIE
包装说明:DIE,针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.67系列:AC
JESD-30 代码:R-XUUC-N20逻辑集成电路类型:BUS TRANSCEIVER
位数:8功能数量:1
端口数量:2端子数量:20
输出特性:3-STATE输出极性:TRUE
封装主体材料:UNSPECIFIED封装代码:DIE
封装形状:RECTANGULAR封装形式:UNCASED CHIP
认证状态:Not Qualified最大供电电压 (Vsup):6 V
最小供电电压 (Vsup):2 V表面贴装:YES
技术:CMOS端子形式:NO LEAD
端子位置:UPPERBase Number Matches:1

54ACQ245D 数据手册

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September 1998  
54ACQ245 54ACTQ245  
Quiet Series Octal Bidirectional Transceiver with  
TRI-STATE® Inputs/Outputs  
General Description  
Features  
n ICC and IOZ reduced by 50%  
The ’ACQ/’ACTQ245 contains eight non-inverting bidirec-  
tional buffers with TRI-STATE outputs and is intended for  
bus-oriented applications. Current sinking capability is  
24 mA at both the A and B ports. The Transmit/Receive (T/R)  
input determines the direction of data flow through the bidi-  
rectional transceiver. Transmit (active-HIGH) enables data  
from A ports to B ports; Receive (active-LOW) enables data  
from B ports to A ports. The Output Enable input, when  
HIGH, disables both A and B ports by placing them in a HIGH  
Z condition.  
n Guaranteed simultaneous switching noise level and  
dynamic threshold performance  
n Improved latch-up immunity  
n TRI-STATE outputs drive bus lines or buffer memory  
address registers  
n Outputs source/sink 24 mA  
n Faster prop delays than the standard ’ACT245  
n 4 kV minimum ESD immunity (’ACQ)  
n Standard Military Drawing (SMD)  
— ’ACTQ245: 5962-92187  
The ’ACQ/’ACTQ utilizes NSC Quiet Series technology to  
guarantee quiet output switching and improve dynamic  
threshold performance. FACT Quiet Series  
— ’ACQ245: 5962-92177  
features  
GTO output control and undershoot corrector in addition to  
a split ground bus for superior performance.  
Logic Symbols  
IEEE/IEC  
DS100237-1  
DS100237-2  
Pin  
Description  
Names  
OE  
Output Enable Input  
T/R  
Transmit/Receive Input  
A0–A7  
B0–B7  
Side A TRI-STATE Inputs or TRI-STATE Outputs  
Side B TRI-STATE Inputs or TRI-STATE Outputs  
GTO is a trademark of National Semiconductor Corporation.  
TRI-STATE® is a registered trademark of National Semiconductor Corporation.  
FACT® is a registered trademark of Fairchild Semiconductor Corporation.  
FACT Quiet Series is a trademark of Fairchild Semiconductor Corporation.  
© 1998 National Semiconductor Corporation  
DS100237  
www.national.com  

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