PSN74AXC1T45DCKR Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
The PSN74AXC1T45DCKR is a single-bit dual-supply bidirectional bus transceiver from Texas Instruments in the AXC family. It supports voltage translation between logic levels as low as 0.65 V and up to 3.6 V, featuring a 12 mA output drive in a 6-pin SOT-23 package.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- PSN74AXC1T45DCKR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PSN74AXC1T45DCKR?
- Single-bit dual-supply bidirectional voltage-level translator supporting VCCA and VCCB rails from 0.65 V to 3.6 V independently for seamless multi-rail system integration
- Ultra-compact 6-pin SOT-23 package occupying minimal PCB area, ideal for space-constrained portable and wearable device designs
- 12 mA output sink current and bidirectional common control enabling robust signal translation on busy I2C, SPI, or GPIO lines without external pull-up sizing constraints
What is PSN74AXC1T45DCKR used for?
The PSN74AXC1T45DCKR is commonly used in smartphones, tablets, and wearables where microcontrollers running at 1.8 V must communicate with peripherals operating at 3.3 V, requiring reliable single-bit voltage translation. It fits IoT sensor nodes bridging ultra-low-voltage MCU GPIO lines to 3.3 V sensors or radio modules. Its tiny SOT-23 footprint also makes it a preferred level-shifter for PCB space-constrained industrial handheld equipment.
What are the specifications of PSN74AXC1T45DCKR?
| Date Of Intro | 2017-12-22 |
| YTEOL | 0 |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | AXC |
| JESD-30 Code | R-PDSO-G6 |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.012A |
| Number of Bits | 1 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Power Supply Current-Max (ICC) | 0.006mA |
| Prop. Delay@Nom-Sup | 173ns |
| Propagation Delay (tpd) | 173ns |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 0.65V |
| Supply Voltage-Nom (Vsup) | 0.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the PSN74AXC1T45DCKR datasheet?
PSN74AXC1T45DCKR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PSN74AXC1T45DCKR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage range does PSN74AXC1T45DCKR support for each supply independently?
Both VCCA and VCCB of the PSN74AXC1T45DCKR can be set independently anywhere from 0.65 V to 3.6 V, allowing level translation between logic families such as 1.1 V LPDDR4 interfaces and 3.3 V peripheral IOs without any additional components.
For a 1.8 V MCU GPIO interfacing a 3.3 V I2C sensor, how does PSN74AXC1T45DCKR handle bidirectional data flow?
The PSN74AXC1T45DCKR uses a direction-pin-controlled bidirectional path with 12 mA output drive on both sides, so the MCU can pull the data line low and the transceiver transparently translates the logic level to 3.3 V on the sensor side, accommodating I2C open-drain topologies within standard timing budgets.
How does the 6-pin SOT-23 package of PSN74AXC1T45DCKR compare in size to larger translation solutions?
The SOT-23 package measures approximately 1.6 mm x 2.9 mm with 0.95 mm pitch, consuming roughly 4.6 mm² of PCB area—over 5 times smaller than an 8-pin SOIC alternative—making it the preferred choice when board real estate is limited to under 5 mm² per translation channel.
Is PSN74AXC1T45DCKR suitable for battery-powered IoT designs from a power consumption perspective?
Yes, as an AXC-family part operating at supply voltages as low as 0.65 V with typical quiescent current in the microampere range, the PSN74AXC1T45DCKR is well-suited for battery-powered IoT nodes where minimizing standby current extends battery life by weeks to months compared to higher-voltage translators.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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