Integrated Circuits (ICs) > Logic ICs > Logic Gates > SN74LS646NT

SN74LS646NT

Texas Instruments

Part Number:	SN74LS646NT
Manufacturer:	Texas Instruments
Part Type:	Integrated Circuits (ICs) > Logic ICs > Logic Gates > SN74LS646NT
Qty Available:
Description:	Registered Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP24

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04/29/2026 – There are 515 pieces pieces of Part Number SN74LS646NT Available.

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Registered Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP24

Specifications

TYPE	DESCRIPTION
Case/Package	PDIP
Mount	Through Hole
Number of Pins	24
Weight	1.753503 g
Direction	Bidirectional
High Level Output Current	-15 mA
Input Current	100 µA
Logic Function	Inverting, Transceiver
Low Level Output Current	24 mA
Max Operating Temperature	70 °C
Max Supply Voltage	5.25 V
Min Operating Temperature	0 °C
Min Supply Voltage	4.75 V
Number of Bits	8
Number of Bits per Element	8
Number of Channels	8
Number of Circuits	8
Number of Elements	1
Number of Outputs	8
Operating Supply Voltage	5 V
Polarity	Non-Inverting
Propagation Delay	65 ns
Quiescent Current	103 mA
Turn-On Delay Time	35 ns
Height	4.57 mm
Length	31.64 mm
Width	6.73 mm
Case/Package	PDIP
Mount	Through Hole
Number of Pins	24
Weight	1.753503 g
Direction	Bidirectional
High Level Output Current	-15 mA
Input Current	100 µA
Logic Function	Inverting, Transceiver
Low Level Output Current	24 mA
Max Operating Temperature	70 °C
Max Supply Voltage	5.25 V
Min Operating Temperature	0 °C
Min Supply Voltage	4.75 V
Number of Bits	8
Number of Bits per Element	8
Number of Channels	8
Number of Circuits	8
Number of Elements	1
Number of Outputs	8
Operating Supply Voltage	5 V
Polarity	Non-Inverting
Propagation Delay	65 ns
Quiescent Current	103 mA
Turn-On Delay Time	35 ns
Height	4.57 mm
Length	31.64 mm
Width	6.73 mm

Images

Documentation for Texas Instruments SN74LS646NT

Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet
Datasheet	View & Download SN74LS646NT Datasheet

Alternate Descriptions

Descriptions of Texas Instruments SN74LS646NT provided by its distributors.
Registered Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP24
Tube DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA NICKEL PALLADIUM GOLD 74LS logic receiver 15mA 24mA 35ns 2.54mm 5V
IC, NON INVERTING BUS TRANSCEIVER DIP-24; Logic Device Type:Transceiver, Registered; Supply Voltage Range:4.75V to 5.25V; Logic Case Style:DIP; No. of Pins:24; Operating Temperature Range:0°C to +70°C; Family Type:LS
These devices consist of bus transceiver circuits with 3-state or open-collector outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers on the low-to-high transition of the appropriate clock pin (CAB or CBA). The following examples demonstrate the four fundamental bus-management functions that can be performed with the octal bus transceivers and registers. Enable (G\) and direction (DIR) pins are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port may be stored in either register or in both. The select controls (SAB and SBA) can multiplex stored and real-time (transparent mode) data. The direction control determines which bus will receive data when enable G\ is active (low). In the isolation mode (control G\ high), A data may be stored in one register and/or B data may be stored in the other register. When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B, may be driven at a time. The SN54' family is characterized for operation over the full military temperature range of 55C to 125C. The SN74' family is characterized for operation from 0 to 70C.
Descriptions of Texas Instruments SN74LS646NT provided by its distributors.
Registered Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP24
Tube DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA NICKEL PALLADIUM GOLD 74LS logic receiver 15mA 24mA 35ns 2.54mm 5V
IC, NON INVERTING BUS TRANSCEIVER DIP-24; Logic Device Type:Transceiver, Registered; Supply Voltage Range:4.75V to 5.25V; Logic Case Style:DIP; No. of Pins:24; Operating Temperature Range:0°C to +70°C; Family Type:LS
These devices consist of bus transceiver circuits with 3-state or open-collector outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers on the low-to-high transition of the appropriate clock pin (CAB or CBA). The following examples demonstrate the four fundamental bus-management functions that can be performed with the octal bus transceivers and registers. Enable (G\) and direction (DIR) pins are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port may be stored in either register or in both. The select controls (SAB and SBA) can multiplex stored and real-time (transparent mode) data. The direction control determines which bus will receive data when enable G\ is active (low). In the isolation mode (control G\ high), A data may be stored in one register and/or B data may be stored in the other register. When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B, may be driven at a time. The SN54' family is characterized for operation over the full military temperature range of 55C to 125C. The SN74' family is characterized for operation from 0 to 70C.

SN74LS646NT

Texas Instruments

Specifications

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Documentation for Texas Instruments SN74LS646NT

Alternate Descriptions

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