Logic - Buffers, Drivers, Receivers, Transceivers

Part Number	Description / PDF	Quantity
74LVT244APW,112 Nexperia	IC BUF NON-INVERT 3.6V 20TSSOP	1378
74HCT244D-Q100,118 Nexperia	IC BUFFER NON-INVERT 5.5V 20SO	4171
74LVT244APW-Q100J Nexperia	IC BUF NON-INVERT 3.6V 20TSSOP	0
74LVC245ADB,112 Nexperia	IC TXRX NON-INVERT 3.6V 20SSOP	684
74LVCH8T245PW,118 Nexperia	IC TRANSLATION TXRX 5.5V 24TSSOP	610
74LVC245AD,112 Nexperia	IC TXRX NON-INVERT 3.6V 20SO	5818
74VHCT244PW,118 Nexperia	IC BUF NON-INVERT 5.5V 20TSSOP	253
74AHC126PW-Q100,11 Nexperia	IC BUF NON-INVERT 5.5V 14TSSOP	0
74LVC240ADB,112 Nexperia	IC BUFFER INVERT 3.6V 20SSOP	5940
74LVC07APW/DG118 Nexperia	BUFFER, LVC/LCX/Z SERIES	48928
74HC240DB,112 Nexperia	IC BUFFER INVERT 6V 20SSOP	1368
74LVT245BBQ,115 Nexperia	IC TXRX NON-INVERT 3.6V 20DHVQFN	1732
74AHC126PW Nexperia	NOW NEXPERIA 74AHC126PW - BUS DR	0
74HCT245PW-Q100J Nexperia	IC TXRX NON-INVERT 5.5V 20TSSOP	0
74AUP2G240DC,125 Nexperia	IC BUFFER INVERT 3.6V 8VSSOP	0
74LVTN16244BDGG,11 Nexperia	IC BUF NON-INVERT 3.6V 48TSSOP	2862
74HC2G125DP,125 Nexperia	IC BUFFER NON-INVERT 6V 8TSSOP	1455
74LVC2G240DC-Q100H Nexperia	IC BUFFER INVERT 5.5V 8VSSOP	0
74LVC8T245PW Nexperia	IC TRANSLATION TXRX 5.5V 24TSSOP	113600
74ALVT16244DGG,118 Nexperia	IC BUF NON-INVERT 3.6V 48TSSOP	2213

Logic - Buffers, Drivers, Receivers, Transceivers

1. Overview

Logic buffers, drivers, receivers, and transceivers are fundamental components in digital circuits designed to manage signal integrity, level shifting, and electrical isolation. These ICs ensure reliable data transmission between devices with varying voltage levels, drive capabilities, or noise environments. They play a critical role in modern electronics, including computers, communication systems, industrial automation, and automotive electronics.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Buffers	Signal replication and drive strength enhancement without inversion	Memory address lines, clock distribution networks
Drivers	High-current output for capacitive/inductive loads	Motor controllers, LED displays
Receivers	Signal conditioning and voltage-level translation	RS-485 interfaces, sensor signal processing
Transceivers	Bidirectional signal conversion with isolation	USB interfaces, CAN bus systems

3. Structure and Composition

These ICs typically feature:

Standard packages: DIP, SOIC, TSSOP, QFN
Internal circuitry: CMOS/Bipolar transistors, ESD protection diodes
Power rails: Separate VCC/GND for noise isolation
I/O structures: Schmitt-trigger inputs, tri-state outputs

4. Key Technical Specifications

Parameter	Description	Importance
Data Rate	Maximum signal switching frequency (Mbps/Gbps)	Determines communication speed
Supply Voltage	Operating voltage range (e.g., 1.65-5.5V)	Compatibility with system power
Drive Strength	Output current capability ( 24mA typical)	Load driving capacity
Propagation Delay	Signal transmission time (ns range)	Timing critical applications
ESD Rating	Electrostatic discharge tolerance (kV)	Reliability in harsh environments

5. Application Fields

Telecommunications: Base stations, optical modules
Industrial Automation: PLCs, fieldbus interfaces
Consumer Electronics: Smartphones, SSD controllers
Automotive: CAN transceivers, sensor hubs
Aerospace: Avionics data links

6. Leading Manufacturers and Products

Manufacturer	Key Products	Features
TI	SN74LVC245A	8-bit bus transceiver, 64MHz, 1.65-3.6V
STMicro	L6384E	High-side driver with protection features
NXP	TJA1050	High-speed CAN transceiver
ON Semi	MC74VHC1GT45	Low-voltage translator, 125MHz

7. Selection Guidelines

Match voltage levels between source and destination
Calculate required drive current ( IOL/IOH)
Consider package thermal characteristics
Select appropriate ESD protection level
Evaluate timing requirements (tPD, skew)
Verify industrial/automotive temperature ratings

8. Industry Trends

Increasing integration of protocol-specific transceivers
Sub-1V core voltage compatibility
EMI reduction through slew-rate control
Automotive-grade SiC/GaN driver development
AI-driven dynamic power optimization
Adoption of 3D packaging for high-density applications