DM74LS154N

DM74LS154N Datasheet

DM74LS154 4-Line to 16-Line Decoder/Demultiplexer

Part	Datasheet
DM74LS154N	DM74LS154N (pdf)

PDF Datasheet Preview
DM74LS154 4-Line to 16-Line Decoder/Demultiplexer DM74LS154 4-Line to 16-Line Decoder/Demultiplexer Each of these 4-line-to-16-line decoders utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, G1 and G2, are LOW. The demultiplexing function is performed by using the 4 input lines to address the output line, passing data from one of the strobe inputs with the other strobe input LOW. When either strobe input is HIGH, all outputs are HIGH. These demultiplexers are ideally suited for implementing high-performance memory decoders. All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design. s Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs s Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs s Input clamping diodes simplify system design s High fan-out, low-impedance, totem-pole outputs s Typical propagation delay 3 levels of logic 23 ns Strobe 19 ns s Typical power dissipation 45 mW Ordering Code: Order Number Package Number Package Description DM74LS154WM M24B 24-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide DM74LS154N N24A 24-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-010, Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Logic Diagram 2000 Fairchild Semiconductor Corporation DS006394 DM74LS154 Function Table Inputs Outputs G1 G2 D C B A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 L LHL H L LHHH H L H L H L H L H L H L H L H L H L HHL H L H L H L H L H L H H = HIGH Level L = Low Level X = Don’t Care DM74LS154 Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage 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 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 Electrical Characteristics over recommended operating free air temperature range unless otherwise noted Parameter Conditions Input Clamp Voltage VCC = Min, II = −18 mA HIGH Level Output Voltage VCC = Min, IOH = Max VIL = Max, VIH = Min LOW Level

PDF Datasheet Preview

DM74LS154 4-Line to 16-Line Decoder/Demultiplexer

DM74LS154 4-Line to 16-Line Decoder/Demultiplexer

Each of these 4-line-to-16-line decoders utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, G1 and G2, are LOW. The demultiplexing function is performed by using the 4 input lines to address the output line, passing data from one of the strobe inputs with the other strobe input LOW. When either strobe input is HIGH, all outputs are HIGH. These demultiplexers are ideally suited for implementing high-performance memory decoders. All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design.
s Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs
s Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs
s Input clamping diodes simplify system design s High fan-out, low-impedance, totem-pole outputs s Typical propagation delay
3 levels of logic 23 ns

Strobe
19 ns
s Typical power dissipation 45 mW
Ordering Code:

Order Number Package Number

Package Description

DM74LS154WM

M24B
24-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide

DM74LS154N

N24A
24-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-010, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Logic Diagram
2000 Fairchild Semiconductor Corporation DS006394

DM74LS154

Function Table

Inputs

Outputs

G1 G2 D C B A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

L LHL H

L LHHH H

L H L H

L H L H

L H L H

L H L H

L HHL H L H

L H L H

L H L H

H = HIGH Level L = Low Level X = Don’t Care

DM74LS154

Absolute Maximum Ratings Note 1

Supply Voltage

Input Voltage

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

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

Electrical Characteristics
over recommended operating free air temperature range unless otherwise noted

Parameter

Conditions

Input Clamp Voltage

VCC = Min, II = −18 mA

HIGH Level

Output Voltage

VCC = Min, IOH = Max

VIL = Max, VIH = Min

LOW Level

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived DM74LS154N Datasheet file may be downloaded here without warranties.

Datasheet ID: DM74LS154N 513767