Document
DM7408 Quad 2-Input AND Gates
August 1986 Revised July 2001
DM7408 Quad 2-Input AND Gates
General Description
This device contains four independent gates each of which performs the logic AND function.
Ordering Code:
Order Number Package Number
Package Description
DM7408N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Connection Diagram
Function Table
Y = AB
Inputs AB LL LH HL HH
H = HIGH Logic Level L = LOW Logic Level
Output Y L L L H
© 2001 Fairchild Semiconductor Corporation DS006498
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DM7408
Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
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
Symbol
VCC VIH VIL IOH IOL TA
Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature
Min 4.75
2
0
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Nom 5
Min
VI Input Clamp Voltage
VCC = Min, II = −12 mA
VOH HIGH Level
VCC = Min, IOH = Max
Output Voltage
VIL = Max
VOL LOW Level
VCC = Min, IOL = Max
Output Voltage
VIH = Min
II
Input Current @ Max Input Voltage
VCC = Max, VI = 5.5V
IIH HIGH Level Input Current
VCC = Max, VI = 2.4V
IIL LOW Level Input Current
VCC = Max, VI = 0.4V
IOS Short Circuit Output Current
VCC = Max (Note 3)
ICCH
Supply Current with Outputs HIGH
VCC = Max
ICCL
Supply Current with Outputs LOW
VCC = Max
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time.
2.4 −18
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
tPLH Propagation Delay Time LOW-to-HIGH Level Output
tPHL Propagation Delay Time HIGH-to-LOW Level Output
CL = 15 pF RL = 400Ω
Conditions
Max
Units
5.25 V
V
0.8 V
−0.8 mA
16 mA
70 °C
Typ (Note 2)
3.4 0.2
11 20
Max −1.5
0.4 1 40 −1.6 −55 21 33
Units
V
V
V
mA µA mA mA mA mA
Min
Max
Units
27 ns
19 ns
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DM7408 Quad 2-Input AND Gates
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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