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Part Name(s) : MC54F258A MC54F258AJ MC54F258AN MC54F258AD Motorola
Motorola => Freescale
Description : QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS View

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

The MC74F258A is a QUAD 2-INPUT multiplexer WITH 3-STATE OUTPUTS. Four bits of DATA from two sources can be selected using a common DATA Select input. The four OUTPUTS present the selected DATA in the complement (inverted) form. The OUTPUTS may be switched to a high impedance state WITH a HIGH on the common Output Enable (OE) input, allowing the OUTPUTS to interface directly WITH bus-oriented systems.

• Multiplexer Expansion by Tying OUTPUTS Together
• Inverting 3-STATE OUTPUTS
• AC Enhanced Version of the F258

Part Name(s) : MC74ACT258 MC74ACT258N MC74ACT258D Motorola
Motorola => Freescale
Description : QUAD 2-INPUT Multiplexer WITH 3-STATE OUTPUTS View

The MC74AC258/74ACT258 is a QUAD 2-INPUT multiplexer WITH 3-STATE OUTPUTS.
Four bits of DATA from two sources can be selected using a common DATA select input. The four OUTPUTS present the selected DATA in the complement (inverted) form. The OUTPUTS may be switched to a high impedance state WITH a HIGH on the common Output Enable (OE) input, allowing the OUTPUTS to interface directly WITH bus-oriented systems.

• Multiplexer Expansion by Tying OUTPUTS Together
• Inverting 3-STATE OUTPUTS
OUTPUTS Source/Sink 24 mA
• ′ACT258 Has TTL Compatible Inputs

Part Name(s) : 74F258A 74F258ASC 74F258ASJ 74F258ASCX 74F258ASJX 74F258APC Fairchild
Fairchild Semiconductor
Description : QUAD 2-INPUT Multiplexer WITH 3-STATE OUTPUTS View

General Description
The 74F258A is a QUAD 2-INPUT multiplexer WITH 3-STATE OUTPUTS. Four bits of DATA from two sources can be selected using a common DATA select input. The four OUTPUTS present the selected DATA in the complement (inverted) form. The OUTPUTS may be switched to a high impedance state WITH a HIGH on the common Output Enable (OE) input, allowing the OUTPUTS to interface directly WITH bus-oriented systems.

Features
■ Multiplexer expansion by tying OUTPUTS together
■ Inverting 3-STATE OUTPUTS

Part Name(s) : MC74F257AJ MC74F257AN MC74F257AD MC74F257A Motorola
Motorola => Freescale
Description : QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS View

The MC74F257 is a QUAD 2-INPUT multiplexer WITH 3-STATE OUTPUTS. Four bits of DATA from two sources can be selected using a common DATA Select input. The four OUTPUTS present the selected DATA in true (non-inverted) form. The OUTPUTS may be switched to a high impedance state WITH a HIGH on the common Output Enable (OE) input, allowing the OUTPUTS to interface directly WITH bus oriented systems.

• Multiplexer Expansion by Tying OUTPUTS Together
• Non-Inverting 3-STATE OUTPUTS
• Input Clamp Diodes Limit High-Speed Termination Effects
• AC Enhanced Version of the F257


Part Name(s) : 74F257A 74F257ASC 74F257ASJ 74F257ASCX 74F257ASJX 74F257APC Fairchild
Fairchild Semiconductor
Description : QUAD 2-INPUT Multiplexer WITH 3-STATE OUTPUTS View

General Description
The 74F257A is a QUAD 2-INPUT multiplexer WITH 3-STATE OUTPUTS. Four bits of DATA from two sources can be selected using a Common DATA Select input. The four OUTPUTS present the selected DATA in true (non-inverted) form. The OUTPUTS may be switched to a high impedance state WITH a HIGH on the common Output Enable (OE) input, allowing the OUTPUTS to interface directly WITH bus-oriented systems.

Features
■ Multiplexer expansion by tying OUTPUTS together
■ Non-inverting 3-STATE OUTPUTS
■ Input clamp diodes limit high-speed termination effects

Part Name(s) : IN74HC257A IN74HC257AD IN74HC257AN IKSEMICON
IK Semicon Co., Ltd
Description : QUAD 2-INPUT DATA Selector/Multiplexer WITH 3-STATE OUTPUTS View

QUAD 2-INPUT DATA Selector/Multiplexer WITH 3-STATE OUTPUTS
High-Performance Silicon-Gate CMOS

The IN74HC257A is identical in pinout to the LS/ALS257. The device inputs are compatible WITH standard CMOS OUTPUTS; WITH pullup resistors, they are compatible WITH LS/ALSTTL OUTPUTS.
This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble is presented at the OUTPUTS in noninverted from when the Output Enable pin is at a low level. A high level on the Output Enable pin switches the OUTPUTS into the high impedance state.

OUTPUTS Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices

 

Part Name(s) : IN74HC258A IN74HC258AN IN74HC258AD IKSEMICON
IK Semicon Co., Ltd
Description : QUAD 2-INPUT DATA SelectORS/MULTIPLEXER WITH 3-STATE OUTPUTS View

QUAD 2-INPUT DATA SelectORS/MULTIPLEXER
WITH 3-STATE OUTPUTS
High-Performance Silicon-Gate CMOS

The IN74HC258A is identical in pinout to the LS/ALS258. The device inputs are compatible WITH standard CMOS OUTPUTS; WITH pullup resistors, they are compatible WITH LS/ALSTTL OUTPUTS.
This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble is presented at the OUTPUTS in inverted form when the Output Enable pin is at a low level. A high level on the Output Enable pin switches the OUTPUTS into the high-impedance state.

OUTPUTS Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices

Part Name(s) : 54LS257 SN74LS257D SN74LS257N Motorola
Motorola => Freescale
Description : QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS View

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

TheLSTTL/MSI SN54/74LS257B and the SN54/74LS258B are QUAD 2-INPUTMultiplexers WITH 3-STATE OUTPUTS. Four bits of DATA from twosources canbe selected using a Common DATA Select input. The four OUTPUTS present the selected DATA in true (non-inverted) form. The OUTPUTS may be switched to ahigh impedance state WITH a HIGH on the common Output Enable (EO) In put,allowing the OUTPUTS to interface directly WITH bus oriented systems. It is fabricatedWITH the Schottky barrier diode process for high speedand is completely compatible WITH all Motorola TTL families.

• Schottky Process For High Speed
• Multiplexer Expansion By Tying OUTPUTS Together
• Non-Inverting 3-STATE OUTPUTS
• Input Clamp Diodes Limit High Speed Termination Effects
• Special Circuitry Ensures Glitch Free Multiplexing
• ESD > 3500 Volts

Part Name(s) : IN74HC257 IN74HC257D IN74HC257N INTE-ElectronicGRAL
Integral Corp.
Description : QUAD 2-INPUT DATA Selector/Multiplexer WITH 3-STATE OUTPUTS View

QUAD 2-INPUT DATA Selector/Multiplexer WITH 3-STATE OUTPUTS
High-Performance Silicon-Gate CMOS

The IN74HC257 is identical in pinout to the LS/ALS257. The device inputs are compatible WITH standard CMOS OUTPUTS; WITH pullup resistors, they are compatible WITH LS/ALSTTL OUTPUTS.
This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble is presented at the OUTPUTS in noninverted from when the Output Enable pin is at a low level. A high level on the Output Enable pin switches the OUTPUTS into the high impedance state.

OUTPUTS Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices

 

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