Logic - Buffers, Drivers, Receivers, Transceivers

Part Number	Description / PDF	Quantity
M74HC365YTTR STMicroelectronics	IC BUFFER NON-INVERT 6V 16TSSOP	1582
M74HC368B1R STMicroelectronics	IC BUFFER INVERT 6V 16DIP	1404
M74HC365YRM13TR STMicroelectronics	IC BUFFER NON-INVERT 6V 16SO	0
M74HC240RM13TR STMicroelectronics	IC BUFFER INVERT 6V 20SO	0
74LCX125YTTR STMicroelectronics	IC BUF NON-INVERT 3.6V 14TSSOP	1684
74LCX07YMTR STMicroelectronics	IC BUFFER NON-INVERT 3.6V 14SO	0
74VCX16244TTR STMicroelectronics	IC BUF NON-INVERT 3.6V 48TSSOP	0
74LCX245MTR STMicroelectronics	IC TXRX NON-INVERT 3.6V 20SO	116
M74HCT540B1R STMicroelectronics	IC BUFFER INVERT 5.5V 20DIP	0
74LVX244TTR STMicroelectronics	IC BUF NON-INVERT 3.6V 20TSSOP	0
74LVX244MTR STMicroelectronics	IC BUFFER NON-INVERT 3.6V 20SOP	0
74LCX07YTTR STMicroelectronics	IC BUF NON-INVERT 3.6V 14TSSOP	0
74LVX541TTR STMicroelectronics	IC BUF NON-INVERT 3.6V 20TSSOP	0
M74HCT245TTR STMicroelectronics	IC TXRX NON-INVERT 5.5V 20TSSOP	6974
M74HC244TTR STMicroelectronics	IC BUFFER NON-INVERT 6V 20TSSOP	14
74VHC244TTR STMicroelectronics	IC BUF NON-INVERT 5.5V 20TSSOP	0
74LX1G126CTR STMicroelectronics	IC BUF NON-INVERT 5.5V SOT323-5	0
M74HCT244RM13TR STMicroelectronics	IC BUFFER NON-INVERT 5.5V 20SOP	0
74LCX07TTR STMicroelectronics	IC BUF NON-INVERT 3.6V 14TSSOP	0
M74HC245TTR STMicroelectronics	IC TXRX NON-INVERT 6V 20TSSOP	2000

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