Integrated Circuits (ICs)

SN74AXCH1T45DTQR

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SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER

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Search across all available documentation for this part.

DocumentsSchematic Checklist - A Guide to Designing With Fixed or Direction Control Translators Voltage Translation Buying Guide (Rev. A)+6

Integrated Circuits (ICs)

SN74AXCH1T45DTQR

Active

Texas Instruments

SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER

Deep-Dive with AI

DocumentsSchematic Checklist - A Guide to Designing With Fixed or Direction Control Translators Voltage Translation Buying Guide (Rev. A)+6

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SN74AXCH1T45DTQR

Channel Type	Bidirectional
Channels per Circuit	1
Data Rate	500 Mbps
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Type	Tri-State, Non-Inverted
Package / Case	6-XFDFN
Supplier Device Package	6-X2SON (1x0.8)
Translator Type	Voltage Level
Voltage - VCCA [Max] [custom]	3.6 V
Voltage - VCCA [Min] [custom]	0.65 V
Voltage - VCCB [Max]	3.6 V
Voltage - VCCB [Min]	0.65 V

SN74AXCH1T45 Series

Single-bit dual-supply bus transceiver

Part	Supplier Device Package	Mounting Type	Number of Circuits	Output Type	Package / Case	Channel Type	Voltage - VCCA [Min] [custom]	Voltage - VCCA [Max] [custom]	Operating Temperature [Min]	Operating Temperature [Max]	Data Rate	Input Signal	Output Signal	Voltage - VCCB [Min]	Voltage - VCCB [Max]	Channels per Circuit	Translator Type
Texas Instruments SN74AXCH1T45DRY2	6-SON (1.45x1)	Surface Mount	1	Non-Inverted Tri-State	6-UFDFN	Bidirectional	0.65 V	3.6 V	-40 °C	125 °C	500 Mbps	CMOS	CMOS	0.65 V	3.6 V	1	Voltage Level
Texas Instruments SN74AXCH1T45DTQR	6-X2SON (1x0.8)	Surface Mount	1	Non-Inverted Tri-State	6-XFDFN	Bidirectional	0.65 V	3.6 V	-40 °C	125 °C	500 Mbps			0.65 V	3.6 V	1	Voltage Level
Texas Instruments SN74AXCH1T45DBVR	SOT-23-6	Surface Mount	1	Non-Inverted Tri-State	SOT-23-6	Bidirectional	0.65 V	3.6 V	-40 °C	125 °C	500 Mbps			0.65 V	3.6 V	1	Voltage Level
Texas Instruments SN74AXCH1T45DCKR	SC-70-6	Surface Mount	1	Non-Inverted Tri-State	6-TSSOP SC-88 SOT-363	Bidirectional	0.65 V	3.6 V	-40 °C	125 °C	500 Mbps			0.65 V	3.6 V	1	Voltage Level

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.81
		10	$ 0.71
		25	$ 0.67
		100	$ 0.54
		250	$ 0.51
		500	$ 0.43
		1000	$ 0.34
	Digi-Reel®	1	$ 0.81
		10	$ 0.71
		25	$ 0.67
		100	$ 0.54
		250	$ 0.51
		500	$ 0.43
		1000	$ 0.34
	Tape & Reel (TR)	3000	$ 0.29
		6000	$ 0.27
		9000	$ 0.27
Texas Instruments	LARGE T&R	1	$ 0.61
		100	$ 0.41
		250	$ 0.32
		1000	$ 0.21

Description

General part information

SN74AXCH1T45 Series

The SN74AXCH1T45 is a single-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCAand VCCBsupplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXCH1T45 is compatible with a single-supply system.

The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. If a supply is present for VCCAor VCCB, the bus-hold circuitry always remains active on the A or B inputs respectively, independent of the state of the direction control pin.