DM7409
DM7409 is Quad 2-Input AND Gates manufactured by National Semiconductor.
- Part of the DM7409N comparator family.
- Part of the DM7409N comparator family.
Description
This device contains four independent gates each of which performs the logic AND function The open-collector outputs require external pull-up resistors for proper logical operation
Pull-Up Resistor Equations
RMAX e
VCC (Min) b VOH N1 (IOH) a N2 (IIH)
RMIN e
VCC (Max) b VOL 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
Function Table
TL F 6499
- 1
Order Number 5409DMQB 5409FMQB or DM7409N See NS Package Number J14A N14A or W14B
Y e AB
Inputs
LL LH HL HH
H e High Logic Level L e Low Logic Level
Output
C1995 National Semiconductor...