器件名称: DM74S09N
功能描述: Quad 2-Input AND Gates with Open-Collector Outputs
文件大小: 92.09KB 共4页
简 介:DM74S09 Quad 2-Input AND Gates with Open-Collector Outputs
June 1989
DM74S09 Quad 2-Input AND Gates with Open-Collector Outputs
General Description
This device contains four independent gates each of which performs the logic AND function The open-collector outputs require an external pull-up resistor for proper logical operation
Pull-Up Resistor Equations
RMAX e VCC (Min) b VOH N1 (IOH) a N2 (IIH)
VCC (Max) b VOL RMIN e IOL b N3 (IIL) Where N1 (IOH) e total maximum output high current for all outputs tied to pull-up resistor N2 (IIH) e total maximum input high current for all inputs tied to pull-up resistor N3 (IIL) e total maximum input low current for all inputs tied to pull-up resistor
Connection Diagram
Dual-In-Line Package
TL F 6465 – 1
Order Number DM74S09N See NS Package Number N14A
Function Table
Y e AB Inputs A L L H H B L H L H Output Y L L L H
H e High Logic Level L e Low Logic Level
C1995 National Semiconductor Corporation
TL F 6465
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings (Note)
Supply Voltage Input Voltage Output Voltage Operating Free Air Temperature Range DM74S Storage Temperature Range 7V 5 5V 7V 0 C to a 70 C
b 65 C to a 150 C
Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Recommended Op……
