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DM74LS26N

Part # DM74LS26N
Description IC GATE NAND 4CH 2-INP 14-DIP
Category IC
Availability In Stock
Qty 20
Qty Price
1 + $0.51626
Manufacturer Available Qty
National Semiconductor Corp
Date Code: 8532
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

© 2000 Fairchild Semiconductor Corporation DS006358 www.fairchildsemi.com
August 1986
Revised March 2000
DM74LS26 Quad 2-Input NAND Gate with High Voltage Open-Collector Outputs
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 out-
puts 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: N
1
(I
OH
) = total maximum output high current
for all outputs tied to pull-up resistor
N
2
(I
IH
) = total maximum input high current for
all inputs tied to pull-up resistor
N
3
(I
IL
) = total maximum input low current for
all inputs tied to pull-up resistor
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Function Table
Y = AB
H = HIGH Logic Level
L = LOW Logic Level
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
Inputs Output
ABY
LLH
LHH
HLH
HHL
www.fairchildsemi.com 2
DM74LS26
Absolute Maximum Ratings(Note 1)
Note 1: 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 tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2: All typicals are at V
CC
= 5V, T
A
= 25°C.
Switching Characteristics
at V
CC
= 5V and T
A
= 25°C
Supply Voltage 7V
Input Voltage 7V
Output Voltage 15V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range 65°C to +150°C
Symbol Parameter Min Nom Max Units
V
CC
Supply Voltage 4.75 5 5.25 V
V
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
V
OH
HIGH Level Output Voltage 15 V
I
OL
LOW Level Output Current 8 mA
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 2)
V
I
Input Clamp Voltage V
CC
= Min, I
I
= 18 mA 1.5 V
I
CEX
HIGH Level V
CC
= Min V
O
= 15V 1000
µA
Output Current V
IL
= Max V
O
= 12V 50
V
OL
LOW Level V
CC
= Min, I
OL
= Max
0.35 0.5
Output Voltage V
IH
= Min V
I
OL
= 4 mA, V
CC
= Min 0.25 0.4
I
I
Input Current @ Max V
CC
= Max, V
I
= 7V
0.1 mA
Input Voltage V
I
= 5.5V
I
IH
HIGH Level Input Current V
CC
= Max, V
I
= 2.7V 20 µA
I
IL
LOW Level Input Current V
CC
= Max, V
I
= 0.4V 0.36 mA
I
CCH
Supply Current with Outputs HIGH V
CC
= Max 0.8 1.6 mA
I
CCL
Supply Current with Outputs LOW V
CC
= Max 2.4 4.4 mA
Symbol Parameter
R
L
= 2 k
UnitsC
L
= 15 pF C
L
= 50 pF
Min Max Min Max
t
PLH
Propagation Delay Time
20 45 ns
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
15 20 ns
HIGH-to-LOW Level Output
3 www.fairchildsemi.com
DM74LS26
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
Package Number M14A
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