Logic - Buffers, Drivers, Receivers, Transceivers

Part Number	Description / PDF	Quantity
SN74ALS643A-1N Texas Instruments	BUS DRIVER/TRANSCEIVER	2103
74AVC8T245PW:112 Nexperia	IC TRANSLATION TXRX 3.6V 24TSSOP	1355
74LVT162240ADGG112 NXP Semiconductors	BUS DRIVER, LVT SERIES, 4-BIT	1950
SN74ABT162827ADGGR Texas Instruments	IC BUF NON-INVERT 5.5V 56TSSOP	6785
SN74LVC8T245DGVR Texas Instruments	IC TRANSLATION TXRX 5.5V 24TVSOP	3935
74LV541DB,118 NXP Semiconductors	IC BUFFER NON-INVERT 3.6V 20SSOP	2000
74AUP2G126DC,125 Nexperia	IC BUF NON-INVERT 3.6V 8VSSOP	8494
74LVT162244MTD Sanyo Semiconductor/ON Semiconductor	IC BUF NON-INVERT 3.6V 48TSSOP	6673800
SN74LVCZ32245AGKER Texas Instruments	BUS TRANSCEIVER, LVC/LCX/Z SERIE	11332
SN74ALS641AN Texas Instruments	IC TRANSCEIVER INVERT 5.5V 20DIP	2690
SN74ABTH16245DLG4 Texas Instruments	IC TXRX NON-INVERT 5.5V 48SSOP	0
SN74AVCH4T245DR Texas Instruments	IC TRANSLATION TXRX 3.6V 16SOIC	2521
MC74HC365AD	IC BUFFER NON-INVERT 6V 16SOIC	8832
NC7NZ17L8X Sanyo Semiconductor/ON Semiconductor	IC BUF NON-INVERT 5.5V 8MICROPAK	523610000
CD74ACT240M96E4 Texas Instruments	IC BUFFER INVERT 5.5V 20SOIC	0
74LVC16244ADL,118 Nexperia	IC BUF NON-INVERT 3.6V 48SSOP	79
54ACTQ827FMQB	QUIET SERIES 10-BIT BUFFER	162
74AVCH4T245PWTE4 Texas Instruments	IC TRANSLATION TXRX 3.6V 16TSSOP	0
74LCX16245MEAX	IC TXRX NON-INVERT 3.6V 48SSOP	2091
SN74LVTH16543DGG Texas Instruments	REGISTERED BUS TRANSCEIVER	3465

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