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DM74LS365A Hex 3-STATE Buffer/Bus Driver
August 1986 Revised March 2000
DM74LS365A Hex 3-STATE Buffer/Bus Driver
General Description
This device contains six independent gates each of which performs a non-inverting buffer function. The outputs have the 3-STATE feature. When enabled, the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the driving of bus lines without external resistors. When disabled, both the output transistors are turned OFF presenting a high-impedance state to the bus line. Thus the output will act neither as a significant load nor as a driver. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the disable time is shorter than the enable time of the outputs.
Ordering Code:
Order Number DM74LS365AM DM74LS365AN Package Number M16A N16E Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-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=A Input G1 H X L L G2 X H L L A X X H L Output Y Hi-Z Hi-Z H L
H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level Hi-Z = 3-STATE (Outputs are disabled)
(c) 2000 Fairchild Semiconductor Corporation
DS006427
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DM74LS365A
Absolute Maximum Ratings(Note 1)
Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range 7V 7V 0C to +70C -65C to +150C
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 Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature 0 Parameter Min 4.75 2 0.8 -2.6 24 70 Nom 5 Max 5.25 Units V V V mA mA C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted) Symbol VI VOH VOL Parameter Input Clamp Voltage HIGH Level Output Voltage LOW Level Output Voltage II IIH IIL Conditions VCC = Min, II = -18 mA VCC = Min, IOH = Max VIL = Max, VIH = Min VCC = Min, IOL = Max VIL = Max, VIH = Min IOL = 12 mA, VCC = Min Input Current @ Max Input Voltage VCC = Max, VI = 7V HIGH Level Input Current LOW Level Input Current VCC = Max, VI = 2.7V VCC = Max, VI = 0.5V (Note 3) VCC = Max, VI = 0.4V (Note 4) VCC = Max, VI = 0.4V IOZH IOZL IOS ICC Off-State Output Current with Off-State Output Current with Short Circuit Output Current Supply Current VCC = Max, VO = 2.4V VCC = Max, VO = 0.4V VCC = Max (Note 5) VCC = Max (Note 6) -20 14 HIGH Level Output Voltage Applied VIH = Min, VIL = Max LOW Level Output Voltage Applied VIH = Min, VIL = Max A Input A Input G Input 2.4 3.4 0.35 0.25 0.5 0.4 0.1 20 -20 -0.4 -0.4 20 -20 -100 24 mA A A mA A A mA mA Min Typ (Note 2) Max -1.5 Units V V
V
Note 2: All typicals are at VCC = 5V, TA = 25C. Note 3: Both G inputs are at 2V. Note 4: Both G inputs at 0.4V. Note 5: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 6: ICC is measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.
Switching Characteristics
at VCC = 5V and TA = 25C RL = 667 Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay Time LOW-to-HIGH Level Output Propagation Delay Time HIGH-to-LOW Level Output Output Enable Time to HIGH Level Output Output Enable Time to LOW Level Output Output Disable Time from HIGH Level Output (Note 7) Output Disable Time from LOW Level Output (Note 7) CL = 50 pF Min Max 16 16 30 30 20 20 CL = 150 pF Min Max 25 25 40 40 ns ns ns ns ns ns Units
Note 7: CL = 5 pF.
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DM74LS365A
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A
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DM74LS365A Hex 3-STATE Buffer/Bus Driver
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N16E
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. LIFE SUPPORT POLICY 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. www.fairchildsemi.com 4 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. www.fairchildsemi.com

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