Quad 2-Input NAND Gate
DM74LS26 Quad 2-Input NAND Gate with High Voltage Open-Collector Outputs
August 1986 Revised March 2000
DM74LS26 Quad ...
Description
DM74LS26 Quad 2-Input NAND Gate with High Voltage Open-Collector Outputs
August 1986 Revised March 2000
DM74LS26 Quad 2-Input NAND Gate with High Voltage Open-Collector Outputs
General Description
This device contains four independent gates each of which performs the logic NAND function. The open-collector outputs require external pull-up resistors for proper logical operation.
These gates feature high-voltage output ratings (up to 15V) for interfacing with 12V systems. Although the outputs are rated for 15V, the device supply is still rated for 5V.
Pull-Up Resistor Equations
Where:
N1 (IOH) = total maximum output high current for all outputs tied to pull-up resistor
N2 (IIH) = total maximum input high current for all inputs tied to pull-up resistor
N3 (IIL) = total maximum input low current for all inputs tied to pull-up resistor
Ordering Code:
Order Number Package Number
Package Description
DM74LS26M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS26N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y = AB
Inputs
A
B
L
L
L
H
H
L
H
H
H = HIGH Logic Level L = LOW Logic Level
Output Y H H H L
© 2000 Fairchild Semiconductor Corporation DS006358
www.fairchildsemi.com
DM74LS26
Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage...
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