Encyclopedia Entry: 74VCX16838MTDX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, non-inverting, 16-bit bus transceiver
• Package: TSSOP-56
• Essence: Translates signals between two different voltage levels in a digital system
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: VCX
• Number of Bits: 16
• Input Voltage Range (VCC): 1.2V to 3.6V
• Output Voltage Range (VCCA/VCCB): 1.2V to 3.6V
• Propagation Delay Time: 2.5 ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74VCX16838MTDX IC has a total of 56 pins arranged as follows:

• Pins 1 to 8: A1 to A8 (Inputs/Outputs for Port A)
• Pins 9 to 16: B1 to B8 (Inputs/Outputs for Port B)
• Pins 17 to 24: G1 to G8 (Output Enable for Port A)
• Pins 25 to 32: G2 to G9 (Output Enable for Port B)
• Pins 33 to 40: VCCA (Power Supply for Port A)
• Pins 41 to 48: VCCB (Power Supply for Port B)
• Pins 49 to 56: GND (Ground)

Functional Features

• Bidirectional level translation between two voltage domains
• Non-inverting logic translation
• Supports high-speed data transmission
• Low power consumption
• Schmitt-trigger inputs for noise immunity

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Wide input/output voltage range enables compatibility with various systems - Non-inverting logic translation simplifies system design - Low power consumption helps conserve energy - Schmitt-trigger inputs provide robustness against noise

Disadvantages: - Limited to 16-bit bus width - Requires careful consideration of voltage levels to prevent signal distortion

Working Principles

The 74VCX16838MTDX is a non-inverting, bidirectional level translator designed to facilitate communication between two digital systems operating at different voltage levels. It utilizes a combination of CMOS and BiCMOS technologies to achieve high-speed operation while maintaining low power consumption.

The IC features separate power supply pins (VCCA and VCCB) for each port, allowing independent voltage selection. The voltage levels of the input and output signals are translated according to the specified voltage ranges, ensuring compatibility between the two systems.

The device incorporates Schmitt-trigger inputs, which provide hysteresis and improve noise immunity by reducing the effects of voltage fluctuations and signal distortions.

Detailed Application Field Plans

The 74VCX16838MTDX is commonly used in various applications that require level translation between different voltage domains. Some typical application fields include:

1. Microcontroller Interfacing: Facilitating communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Enabling data transfer between memory modules with varying voltage requirements.
3. Communication Systems: Supporting signal translation in serial communication interfaces like UART, SPI, or I2C.
4. Mixed Voltage Systems: Bridging the gap between different voltage domains in mixed-voltage systems.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR - Single-Bit Dual-Supply Bus Transceiver
2. TXB0108PWR - 8-Bit Bidirectional Voltage-Level Translator
3. PCA9306DCUR - Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator

These alternative models offer similar functionality and can be considered as alternatives to the 74VCX16838MTDX, depending on specific application requirements.

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