Integrated Circuits (ICs)

SN74HCT645N

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Texas Instruments

OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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Integrated Circuits (ICs)

SN74HCT645N

Active

Texas Instruments

OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SN74HCT645N

Current - Output High, Low [custom]	6 mA
Current - Output High, Low [custom]	6 mA
Mounting Type	Through Hole
Number of Bits per Element	8
Number of Elements	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	3-State
Package / Case	20-DIP
Package / Case	7.62 mm
Package / Case	0.3 in
Supplier Device Package	20-PDIP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74HCT645 Series

Octal Bus Transceivers With 3-State Outputs

Part	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Elements	Output Type	Package / Case [y]	Package / Case	Package / Case [x]	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Number of Bits per Element	Package / Case	Package / Case	Package / Case [y]
Texas Instruments SN74HCT645PWR	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645PWT	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645NE4	6 mA	6 mA	85 °C	-40 °C	1	3-State		20-DIP		Through Hole	4.5 V	5.5 V	20-PDIP	8	7.62 mm	0.3 in
Texas Instruments SN74HCT645PWRE4	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645N	6 mA	6 mA	85 °C	-40 °C	1	3-State		20-DIP		Through Hole	4.5 V	5.5 V	20-PDIP	8	7.62 mm	0.3 in
Texas Instruments SN74HCT645PW	6 mA	6 mA	85 °C	-40 °C	1	3-State	4.4 mm	20-TSSOP	0.173 in	Surface Mount	4.5 V	5.5 V	20-TSSOP	8
Texas Instruments SN74HCT645DW	6 mA	6 mA	85 °C	-40 °C	1	3-State	0.295 in	20-SOIC		Surface Mount	4.5 V	5.5 V	20-SOIC	8			7.5 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.02
		20	$ 1.82
		40	$ 1.71
		100	$ 1.46
		260	$ 1.37
		500	$ 1.20
		1000	$ 0.99
		2500	$ 0.93
		5000	$ 0.89
Texas Instruments	TUBE	1	$ 1.75
		100	$ 1.44
		250	$ 1.04
		1000	$ 0.78

Description

General part information

SN74HCT645 Series

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.

Documents

Technical documentation and resources