SN74AXC1T45DCKR

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SN74AXC1T45DCKR

IC TRNSLTR BIDIRECTIONAL SC70-6

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Especificaciones

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series 74AXC
ProductStatus Active
TranslatorType Voltage Level
ChannelType Bidirectional
NumberofCircuits 1
ChannelsperCircuit 1
Voltage-VCCA 0.65 V ~ 3.6 V
Voltage-VCCB 0.65 V ~ 3.6 V
OutputType Tri-State, Non-Inverted
DataRate 500Mbps
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case 6-TSSOP, SC-88, SOT-363

Descripción general

Description

SN74AXC1T45DCKR is TI’s one-bit, bidirectional voltage-level translator with auto-direction sensing. It lets a single digital line translate between two voltage domains without a direction-control pin: A side (VCCA) and B side (VCCB). It auto-detects the direction and passes signals through with low on-resistance.
Key points:
- 1-bit, bidirectional level shifting between VCCA and VCCB
- Auto-direction sensing (no external DIR/EN needed)
- Typical VCCA range: 1.2–3.6 V; VCCB range: 1.65–3.6 V
- Suitable for general digital signaling between different logic voltages (e.g., 1.8 V MCU to 3.3 V peripheral)
- DCKR = tape-and-reel revision/package variant
For exact electrical characteristics (propagation delay, input/output thresholds, leakage, drive strength) and package details, consult the TI SN74AXC1T45 datasheet.

Features

Here are the key features of SN74AXC1T45DCKR:
- 1-bit bidirectional voltage-level translator between two supply rails (A-side and B-side)
- Independent supply voltages on A and B sides (VCCA and VCCB) for flexible level shifting
- Auto-direction sensing (no external direction pin required)
- Ioff partial-power-down support to prevent back-powering
- CMOS/TTL-compatible input thresholds
- 8-pin DCKR package (small, surface-mount)
- ESD protection for robust operation
- Wide operating temperature range (typical industrial range)
Note: For exact voltage ranges, thresholds, and timing, please refer to the datasheet.

Package

SN74AXC1T45DCKR is in TI's DCK package: a 6-pin SC70 (small, surface-mount) package. The trailing R denotes tape-and-reel shipment.

Pinout

Pin count: 6 pins.
Function: The SN74AXC1T45 is a single‑bit, dual‑supply bidirectional voltage‑level translator/transceiver. It translates a single signal between two supply domains (VCCA and VCCB), supporting I/O voltages on each side and providing direction-control and output‑enable functionality (used to control data flow and tristate the outputs). It’s intended for interfacing logic at different voltage rails.

Manufacturer

Manufacturer: Texas Instruments (TI).
Texas Instruments is an American multinational semiconductor company (publicly traded: NYSE: TXN) that designs and manufactures integrated circuits and semiconductor devices—analog chips, logic ICs, embedded processors, power management, and related components—supplying electronics manufacturers worldwide.

Application

SN74AXC1T45DCKR is a 1-bit bidirectional voltage-level translator with auto-direction sensing between two supply rails (VCCA and VCCB). It translates signals in either direction without external control. Applications: level shifting between mixed-voltage domains; interfacing MCUs/MPUs to memories, sensors, ADCs/DACs, and other peripherals; I/O expansion; bidirectional bus interfacing in consumer, automotive, and industrial electronics.

Equivalent

Functionally similar single‑bit level translators: TI SN74LVC1T45 and SN74AVC1T45; Nexperia/TI TXB0101 (auto‑directional type); NXP PCA9306 (for open‑drain/I²C use). Note: these parts differ in direction control, push‑pull vs open‑drain behavior, and voltage ranges—verify datasheets for exact electrical/packaging compatibility.

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