Overview
The SN74AUP1T34DCKR is a 1-bit noninverting voltage-level translator produced by Texas Instruments. This device is designed to operate with two separate configurable power-supply rails, allowing for unidirectional translation between different voltage levels. The A port tracks VCCA, and the B port tracks VCCB, both of which can accept supply voltages from 0.9 V to 3.6 V. This flexibility enables translation between various voltage nodes such as 1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The device is also fully specified for partial-power-down applications, utilizing Ioff circuitry to prevent damaging current backflow when powered down.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Pins | 5 | - |
| Package Type | SC70 (DCK) | - |
| Body Size (Nominal) | 2.00 mm × 1.25 mm | mm |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage Range (VCCA and VCCB) | 0.9 V to 3.6 V | V |
| Maximum Low-Level Output Current | 6 mA | mA |
| Maximum High-Level Output Current | -6 mA | mA |
| Propagation Delay Time (Max @ 30 pF) | 45.65 ns | ns |
| ESD Protection | 5000-V Human-Body Model (A114-A) | V |
| Latch-Up Performance | Exceeds 100 mA per JESD 78, Class II | mA |
Key Features
- Wide Operating VCC Range: Supports supply voltages from 0.9 V to 3.6 V for both VCCA and VCCB.
- Partial Power-Down Mode Operation: Ioff circuitry disables the outputs to prevent damaging current backflow when the device is powered down.
- VCC Isolation Feature: Ensures that if either VCCA or VCCB is at GND, both ports are in a high-impedance state, preventing false logic levels.
- Input Hysteresis: Supports slow input transitions and improves switching noise immunity.
- ESD Protection: Exceeds JESD 22 standards with 5000-V Human-Body Model (A114-A) protection.
- Low Static-Power Consumption: Maximum of 5-µA ICC.
- ±6-mA Output Drive at 3 V: High output drive capability.
Applications
- Enterprise: Suitable for various enterprise-level electronic systems.
- Industrial: Used in industrial automation and control systems.
- Personal Electronics: Found in consumer electronics requiring voltage level translation.
- Telecommunications: Used in telecommunications equipment for signal translation.
- Automotive (Q1 Version): AEC-Q100 qualified for automotive applications.
Q & A
- Q: What is the primary function of the SN74AUP1T34DCKR?
A: The SN74AUP1T34DCKR is a 1-bit noninverting voltage-level translator that translates signals between two different voltage levels using two separate configurable power-supply rails.
- Q: What is the operating temperature range of the SN74AUP1T34DCKR?
A: The operating temperature range is from -40°C to 85°C.
- Q: What are the supported supply voltage ranges for VCCA and VCCB?
A: Both VCCA and VCCB support supply voltages from 0.9 V to 3.6 V.
- Q: What is the purpose of the Ioff circuitry in the SN74AUP1T34DCKR?
A: The Ioff circuitry disables the outputs to prevent damaging current backflow when the device is powered down, supporting partial-power-down mode operation.
- Q: What is the VCC isolation feature in the SN74AUP1T34DCKR?
A: The VCC isolation feature ensures that if either VCCA or VCCB is at GND, both ports are in a high-impedance state, preventing false logic levels.
- Q: What kind of ESD protection does the SN74AUP1T34DCKR offer?
A: The device offers ESD protection exceeding JESD 22 standards with a 5000-V Human-Body Model (A114-A) protection.
- Q: What are the typical applications of the SN74AUP1T34DCKR?
A: It is used in enterprise, industrial, personal electronics, telecommunications, and automotive (for the Q1 version) applications.
- Q: What is the maximum propagation delay time of the SN74AUP1T34DCKR?
A: The maximum propagation delay time is 45.65 ns at 30 pF.
- Q: Does the SN74AUP1T34DCKR support slow input transitions?
A: Yes, it supports slow input transitions with input hysteresis, improving switching noise immunity.
- Q: What is the output drive capability of the SN74AUP1T34DCKR at 3 V?
A: The device has a ±6-mA output drive capability at 3 V.
