Automotive dual-bit dual-supply voltage level translation w/ independent DIR control, 3-State output
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 automotive qualified
- Fully configurable dual-rail design allows each port to operate with a power supply range rrom 0.65 V to 3.6 V
- Operating temperature from –40°C to +125°C
- DIR control input for each channel
- Glitch-free power supply sequencing
- Up to 380 Mbps support when translating from 1.8 V to 3.3 V
- VCC isolation feature
- If either VCC input is below 100 mV, all I/O outputs are disabled and become high-impedance
- Ioff 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
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Description
The SN74AXC2T245-Q1 is a two-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies 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 SN74AXC2T245-Q1 is compatible with a single-supply system.
The SN74AXC2T245-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 (DIRx). The SN74AXC2T245-Q1 device is designed so the control pin (DIR) is referenced to VCCA.
This device is fully specified for partial-power-down applications using the Ioff current. The Ioff 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 VCC isolation feature ensures that if either VCCA or VCCB 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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | SN74AXC2T245-Q1 Automotive 2-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and Tri-State Outputs datasheet (Rev. A) | Apr. 21, 2020 |
Application note | SCEA095 | Oct. 12, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Pre-populated with the SN74AXC2T45DTM package
- Demonstrates the small package technology of TI
- Ground port for each header pin supports high speed measurement
- DIR pin; have the option of 10K ohm resistor pullup or pulldown
Design tools & simulation
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
UQFN (RSW) | 10 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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