74LVQ245QSC

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics:
  • Low-voltage operation
  • High-speed data transmission
  • Bidirectional voltage level shifting
  • Compatible with various logic families
• Package: QSOP (Quarter Small Outline Package)
• Essence: Transferring and translating digital signals between different voltage levels
• Packaging/Quantity: Typically sold in reels of 2500 units

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Family: LVQ
• Number of Channels: 8
• Input/Output Compatibility: TTL, CMOS, LVTTL, LVCMOS
• Maximum Data Rate: 400 Mbps
• Propagation Delay: 3.8 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVQ245QSC has a total of 20 pins, which are assigned as follows:

___________ A1 |1 20| VCC B1 |2 19| OE# A2 |3 18| I/O1B B2 |4 17| I/O2B A3 |5 16| I/O3B B3 |6 15| I/O4B A4 |7 14| I/O5B B4 |8 13| I/O6B GND |9 12| I/O7B DIR |10 11| I/O8B ‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Bidirectional voltage level shifting: Allows for seamless translation of digital signals between different voltage domains.
• High-speed data transmission: Supports data rates up to 400 Mbps, enabling efficient communication in various applications.
• Output enable (OE#) control: Enables or disables the outputs, providing flexibility in system design.
• Wide supply voltage range: Operates reliably with supply voltages ranging from 1.65V to 5.5V.
• Compatibility with multiple logic families: Works seamlessly with TTL, CMOS, LVTTL, and LVCMOS logic levels.

Advantages and Disadvantages

Advantages

• Efficient voltage level shifting between different logic families
• High-speed data transmission capability
• Wide operating temperature range
• Compact QSOP package for space-constrained designs

Disadvantages

• Limited number of channels (8)
• Not suitable for applications requiring higher data rates

Working Principles

The 74LVQ245QSC is a bidirectional level shifter and bus transceiver. It utilizes a combination of MOSFETs and other circuitry to shift the voltage levels of digital signals between two different voltage domains. The direction of signal flow is controlled by the DIR pin. When the DIR pin is high, the device operates in the A-to-B mode, translating signals from the A side to the B side. Conversely, when the DIR pin is low, the device operates in the B-to-A mode, translating signals from the B side to the A side.

Detailed Application Field Plans

The 74LVQ245QSC finds application in various fields where voltage level shifting and bidirectional data transmission are required. Some common application areas include: - Communication systems - Data acquisition systems - Industrial automation - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SN74LVC245A: Similar bidirectional level shifter with 3-state outputs
• MC74LVX245: Octal bus transceiver with non-inverting outputs
• CD74HCT245: Octal bus transceiver with TTL-compatible inputs and outputs
• 74HC245: Octal bus transceiver with CMOS-compatible inputs and outputs

These alternative models offer similar functionality and can be considered as substitutes for the 74LVQ245QSC in different applications.

Word count: 446 words