Encyclopedia Entry: 74ALVT162821DGGY

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, voltage-level shifting
• Package: DGGY (TSSOP-56)
• Essence: This IC is designed to translate logic levels between different voltage domains.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Logic Family: ALVT
• Number of Channels: 16
• Input Voltage Range (V_IN): 1.2V - 3.6V
• Output Voltage Range (V_OUT): 1.2V - 3.6V
• Propagation Delay (t_PD): 2.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ALVT162821DGGY IC has a TSSOP-56 package with the following pin configuration:

+---------------------+ OE1 |1 56| VCCB A1 |2 55| B1 A2 |3 54| B2 A3 |4 53| B3 A4 |5 52| B4 A5 |6 51| B5 A6 |7 50| B6 A7 |8 49| B7 A8 |9 48| B8 GND |10 47| B9 OE2 |11 46| B10 A9 |12 45| B11 A10 |13 44| B12 A11 |14 43| B13 A12 |15 42| B14 A13 |16 41| B15 A14 |17 40| B16 A15 |18 39| GND A16 |19 38| OE3 VCCA|20 37| C1 C2 |21 36| C3 C4 |22 35| C5 C6 |23 34| C7 C8 |24 33| C9 GND |25 32| C10 OE4 |26 31| C11 D1 |27 30| C12 D2 |28 29| C13 +---------------------+

Functional Features

• Provides bidirectional voltage-level translation between two logic voltage domains.
• Supports level shifting from 1.2V to 3.6V and vice versa.
• High-speed operation with low propagation delay.
• Enables interfacing between devices operating at different voltage levels.

Advantages and Disadvantages

Advantages: - Allows seamless communication between devices with different logic voltage requirements. - Low power consumption. - Compact package size for space-constrained applications. - Wide operating temperature range.

Disadvantages: - Limited number of channels (16). - Not suitable for voltage translation beyond the specified range. - Requires careful consideration of input/output voltage compatibility.

Working Principles

The 74ALVT162821DGGY is a voltage-level translator IC that operates by utilizing a combination of MOSFETs and level-shifting circuitry. It receives input signals from one voltage domain and translates them to the corresponding logic levels in another voltage domain. The IC ensures bidirectional communication by providing separate control pins for each direction.

Detailed Application Field Plans

The 74ALVT162821DGGY is commonly used in various applications, including:

1. Mixed Voltage Systems: Enables communication between microcontrollers, sensors, and other devices operating at different logic voltage levels.
2. Battery-Powered Devices: Facilitates voltage translation in portable electronics, such as smartphones, tablets, and wearables.
3. Industrial Automation: Allows interfacing between different voltage domains in control systems, PLCs, and industrial sensors.
4. Automotive Electronics: Supports voltage-level translation in automotive control units, infotainment systems, and sensor interfaces.

Detailed and Complete Alternative Models

1. SN74LVC8T245PW: 8-bit dual-supply bus transceiver with configurable voltage translation.
2. TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction sensing. 3