74ACT158SC

74ACT158SC Datasheet

74ACT158 Quad 2-Input Multiplexer

Part	Datasheet
74ACT158SC	74ACT158SC (pdf)

Related Parts	Information
74ACT158PC	74ACT158PC
74ACT158SCX	74ACT158SCX
74ACT158SJX	74ACT158SJX
74ACT158SJ	74ACT158SJ
74ACT158MTC	74ACT158MTC
74ACT158MTCX	74ACT158MTCX

PDF Datasheet Preview
74ACT158 Quad 2-Input Multiplexer 74ACT158 Quad 2-Input Multiplexer The ACT158 is a high-speed quad 2-input multiplexer. It selects four bits of data from two sources using the common Select and Enable inputs. The four buffered outputs present the selected data in the inverted form. The ACT158 can also be used as a function generator. s ICC reduced by 50% s Outputs source/sink 24 mA s TTL-compatible inputs Ordering Code: Order Number Package Number Package Description 74ACT158SC 74ACT158PC 74ACT158MTC 74ACT158SJ M16A M16D MTC16 N16E 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow Body 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEE/IEC Pin Descriptions Pin Names Source 0 Data Inputs Source 1 Data Inputs Enable Input Select Input Inverted Outputs is a trademark of Fairchild Semiconductor Corporation. 1999 Fairchild Semiconductor Corporation DS009930 74ACT158 Functional Description The ACT158 quad 2-input multiplexer selects four bits of data from two sources under the control of a common Select input S and presents the data in inverted form at the four outputs. The Enable input E is active-LOW. When E is HIGH, all of the outputs Z are forced HIGH regardless of all other inputs. The ACT158 is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input. A common use of the ACT158 is the moving of data from two groups of registers to four common output busses. The particular register from which the data comes is determined by the state of the Select input. A less obvious use is as a function generator. The ACT158 can generate four functions of two variables with one variable common. This is useful for implementing gating functions. Logic Diagram Truth Table Inputs H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Outputs Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 74ACT158 Absolute Maximum Ratings Note 1 Supply Voltage VCC DC Input Diode Current IIK VI = −0.5V VI = VCC + 0.5V DC Input Voltage VI DC Output Diode Current IOK VO = −0.5V VO = VCC + 0.5V DC Output Voltage VO DC Output Source or Sink Current IO DC VCC or Ground Current per Output Pin ICC or IGND Storage Temperature TSTG Junction Temperature TJ −0.5V to +7.0V −20 mA +20 mA −0.5V to VCC + 0.5V −20 mA +20 mA −0.5V to VCC + 0.5V ±50 mA ±50 mA −65°C to +150°C 140°C Recommended Operating Conditions Supply Voltage VCC Input Voltage VI Output Voltage VO Operating Temperature TA Minimum Input Edge Rate VIN from 0.8V to 2.0V VCC 4.5V, 5.5V 4.5V to 5.5V 0V to VCC 0V to VCC −40°C to +85°C 125 mV/ns Note 1 Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variable. Fairchild does not recommend operation of circuits outside databook specifications. DC Electrical Characteristics

PDF Datasheet Preview

74ACT158 Quad 2-Input Multiplexer
74ACT158 Quad 2-Input Multiplexer

The ACT158 is a high-speed quad 2-input multiplexer. It selects four bits of data from two sources using the common Select and Enable inputs. The four buffered outputs present the selected data in the inverted form. The ACT158 can also be used as a function generator.
s ICC reduced by 50% s Outputs source/sink 24 mA s TTL-compatible inputs
Ordering Code:

Order Number Package Number

Package Description
74ACT158SC 74ACT158PC 74ACT158MTC 74ACT158SJ

M16A M16D MTC16 N16E
16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow Body 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Symbols

Connection Diagram

IEE/IEC

Pin Descriptions

Pin Names

Source 0 Data Inputs Source 1 Data Inputs Enable Input

Select Input

Inverted Outputs
is a trademark of Fairchild Semiconductor Corporation.
1999 Fairchild Semiconductor Corporation DS009930
74ACT158

Functional Description

The ACT158 quad 2-input multiplexer selects four bits of data from two sources under the control of a common Select input S and presents the data in inverted form at the four outputs. The Enable input E is active-LOW. When E is HIGH, all of the outputs Z are forced HIGH regardless of all other inputs. The ACT158 is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input.

A common use of the ACT158 is the moving of data from two groups of registers to four common output busses. The particular register from which the data comes is determined by the state of the Select input. A less obvious use is as a function generator. The ACT158 can generate four functions of two variables with one variable common. This is useful for implementing gating functions.

Logic Diagram

Truth Table

Inputs

H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial

Outputs

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
74ACT158

Absolute Maximum Ratings Note 1

Supply Voltage VCC DC Input Diode Current IIK

VI = −0.5V VI = VCC + 0.5V DC Input Voltage VI DC Output Diode Current IOK VO = −0.5V VO = VCC + 0.5V DC Output Voltage VO DC Output Source
or Sink Current IO DC VCC or Ground Current
per Output Pin ICC or IGND Storage Temperature TSTG Junction Temperature TJ
−0.5V to +7.0V
−20 mA +20 mA −0.5V to VCC + 0.5V
−20 mA +20 mA −0.5V to VCC + 0.5V
±50 mA
±50 mA −65°C to +150°C
140°C

Recommended Operating Conditions

Supply Voltage VCC Input Voltage VI Output Voltage VO Operating Temperature TA Minimum Input Edge Rate

VIN from 0.8V to 2.0V VCC 4.5V, 5.5V
4.5V to 5.5V 0V to VCC 0V to VCC
−40°C to +85°C
125 mV/ns

Note 1 Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variable. Fairchild does not recommend operation of circuits outside databook specifications.

DC Electrical Characteristics

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Datasheet ID: 74ACT158SC 513157