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CAXC4T245QRSVRQ1

Automotive 4-bit dual-supply bus transceiver w/ configurable voltage translation, 3-state output

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

CAXC4T245QRSVRQ1
Datasheet:

CAXC4T245QRSVRQ1 Datasheet (PDF)
Technology family:

AXC
Applications:

JTAG, SPI, UART
Bits (#):

2, 4
High input voltage (min) (V):

0.45, 0.455
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CAXC4T245QRSVRQ1 General Description

The SN74AXC4T245-Q1 AEC-Q100 qualified device is a four-bit non-inverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both V_CCA and V_CCB supplies as low as 0.65 V. The A port is designed to track V_CCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track V_CCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXC4T245-Q1 is compatible with a single-supply system.

The SN74AXC4T245-Q1 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control inputs (1DIR and 2DIR). The output-enable inputs (1 OE and 2 OE) are used to disable the outputs so the buses are effectively isolated. The SN74AXC4T245-Q1 device is designed so the control pins (xDIR and x OE) are referenced to V_CCA.

To ensure the high-impedance state of the level shifter I/Os during power up or power down, the x OE pins should be tied to V_CCA through a pull-up resistor.

This device is fully specified for partial-power-down applications using the I_off current. The I_off protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The V_CC isolation feature ensures that if either V_CCA or V_CCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-Free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.

Key Features

AEC-Q100 qualified for automotive applications
Available in wettable flank QFN (WBQB) package
Fully-configurable dual-rail design allows each port to operate with a power supply range from 0.65 V to 3.6 V
Operating temperature from –40°C to +125°C
Multiple direction control pins to allow simultaneous up and down translation
Glitch-free power supply sequencing
Up to 380 Mbps support when translating from 1.8 V to 3.3 V
V_CC isolation feature:
- If either V_CC input is below 100 mV, all I/O outputs are disabled and become high impedance
I_off supports partial-power-down mode operation
Compatible with AVC-family level shifters
Latch-up performance exceeds 100 mA per JESD 78, class II
ESD protection exceeds JEDEC JS-001
- 8000-V human-body model
- 1000-V charged-device model

Specifications

Technology family	AXC	Applications	JTAG, SPI, UART
Bits (#)	2, 4	High input voltage (min) (V)	0.45, 0.455
High input voltage (max) (V)	3.6	Vout (min) (V)	0.65
Vout (max) (V)	3.6	Data rate (max) (MBps)	380
IOH (max) (mA)	-12	IOL (max) (mA)	12
Supply current (max) (µA)	23, 40	Features	Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation
Input type	CMOS, Standard CMOS	Output type	3-State, Balanced CMOS, Push-Pull
Rating	Automotive	Operating temperature range (°C)	-40 to 125
feature-logic-family	AXC	feature-logic-function
feature-translation		feature-process-technology
feature-output-type		feature-maximum-low-level-output-current-ma
feature-maximum-high-level-output-current-ma		feature-minimum-operating-supply-voltage-v
feature-maximum-operating-supply-voltage-v		feature-packaging	Tape and Reel
feature-rad-hard	No	feature-pin-count	16
feature-cecc-qualified		feature-esd-protection
feature-military	No	feature-aec-qualified	Yes
feature-aec-qualified-number	AEC-Q100	feature-auto-motive	Yes
feature-p-pap	Yes	feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No

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Ratings and Reviews

C**b 02/07/2023

Shipping 16 days. The boards are simply put in a puffy bag, not broken, individually not packed. The track was not tracked. All five workers.

H**r 03/10/2021

Went very long to moscow. You can see the problem with customs .. Opened and in the mailbox... You can see the customs... For them there were some incomprehensible fees ..Well packed. And all as in the rollers of goods ..

M**n 12/06/2020

Fast and reliable! Avaq delivered the MCIMX6Q6AVT10AD components in record time, ensuring a hassle-free experience. Their efficiency is truly commendable.

M**n 03/02/2020

The order came on time, but not entirely.There are small defects, but the work did not seem. While the track.