Logic - Translators, Level Shifters

Part Number	Description / PDF	Quantity
74AUP1T97GF,132 Nexperia	IC LP CONFIG GATE V-XLATR 6-XSON	3824
MAX13042EEBC+T Maxim Integrated	IC TRNSLTR BIDIRECTIONAL 12UCSP	12500
MC100EPT24MNR4G	LVTTL/LVCMOS TO LVECL TRANSLATOR	26800
SN74LVC2T45DCTT Texas Instruments	IC TRNSLTR BIDIRECTIONAL SM8	2547
TXB0104DG4 Texas Instruments	IC TRNSLTR BIDIRECTIONAL 14SOIC	0
TXB0304RSVR Texas Instruments	IC TRNSLTR BIDIRECTIONAL 16UQFN	2190
74AUP1T58GM,115 Nexperia	IC LP CONFIG GATE V-XLATR 6XSON	165
MAX3372EEBL Analog Devices, Inc.	DUAL LOW-VOLT LEVEL TRANSLATOR	1772
MAX13030EETE+ Maxim Integrated	IC TRNSLTR BIDIRECTIONAL 16TQFN	246
SN74GTL16622ADGGR Texas Instruments	SN74GTL16622A 18-BIT LVTTL TO GT	11740
ADG3304BRUZ-REEL Analog Devices, Inc.	IC TRNSLTR BIDIRECTIONAL 14TSSOP	0
SN74LVCC4245APWT Texas Instruments	IC TRNSLTR BIDIRECTIONAL 24TSSOP	544
ADG3300BRUZ Analog Devices, Inc.	IC TRNSLTR BIDIRECTIONAL 20TSSOP	395
TXS0206-29YFPRB Texas Instruments	IC TRNSLTR BIDIRECTIONAL 20DSBGA	586
NXS0101GMX Nexperia	NXS0101GM/SOT886/XSON6	4996
SN65ELT20DR Texas Instruments	SN65ELT20 5V TTL TO DIFFERENTIAL	24600
MC10H603FNR2	ECL TO TTL TRANSLATOR	500
MC100EL90DWG	ECL TO PECL TRANSLATOR	14347
MC10ELT20DR2G Sanyo Semiconductor/ON Semiconductor	IC TRNSLTR UNIDIRECTIONAL 8SOIC	5000
NTS0104BQ,115 NXP Semiconductors	IC TRNSLTR BIDIR 14DHVQFN	2666

Logic - Translators, Level Shifters

1. Overview

Logic translators and level shifters are semiconductor devices that enable signal compatibility between circuits operating at different voltage levels. These ICs ensure reliable data transmission by converting logic signals from one voltage domain to another, maintaining signal integrity in mixed-voltage systems. Their importance has grown with the proliferation of low-voltage CMOS technologies and multi-rail power architectures in modern electronics.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Single-direction translators	Unidirectional voltage conversion with isolation	SPI interface between 3.3V FPGA and 1.8V sensors
Bi-directional translators	Automatic direction detection, dual-voltage I/O	I2C bus bridging between 5V microcontroller and 2.5V EEPROM
Multi-channel level shifters	Parallel conversion of multiple signals (4-32 channels)	Memory interface between SoC and DDR4 SDRAM modules
Direction-controlled translators	External control pin for signal direction selection	UART level conversion in industrial communication modules

3. Structure and Composition

Typical devices feature a monolithic CMOS structure with dual power supply inputs (VCCA and VCCB). Physical components include:

Dual-supply MOSFET pairs for voltage translation
Integrated clamp circuits for ESD protection
Direction control logic (for bidirectional types)
Channel-specific enable/disable circuitry

Common package types: TSSOP (14-48 pins), QFN (20-64 pins), WLCSP (1.5 1.5mm ultra-compact).

4. Key Technical Specifications

Parameter	Significance
Voltage range (1.2V-5.5V)	Determines compatibility with different logic families
Conversion rate (100Mbps-1.2Gbps)	Limits maximum operating frequency
Channel count (1-32)	Impacts system integration density
Propagation delay (2-20ns)	Affects timing critical applications
Quiescent current (1-100 A)	Power efficiency in battery-powered systems

5. Application Areas

Key industries include:

Telecommunications: 5G baseband processors interfacing with RF front-ends
Industrial automation: PLC modules connecting 24V sensors to 3.3V MCUs
Consumer electronics: Smartphone PMIC to application processor communication
Automotive systems: CAN-FD transceiver voltage adaptation
IoT devices: Sensor hub interfacing between different voltage rail components

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
TI (Texas Instruments)	TXB0108	8-channel, 1.2-3.6V to 1.65-5.5V translation, auto-direction detection
NXP Semiconductors	LTC2850	3.3/5V dual supply, 15kV ESD protection, RS485/UART interface
ON Semiconductor	NXU408	4-channel, 0.9-5.5V range, sub-1ns propagation delay
STMicroelectronics	L6470	Stepper motor driver with integrated level shifting for industrial automation

7. Selection Guidelines

Key considerations:

Match supply voltage ranges with source/target systems
Ensure conversion rate meets timing requirements
Choose appropriate channel density to minimize PCB area
For bidirectional buses, select devices with automatic direction sensing
Consider thermal performance for high-current applications
Evaluate ESD protection levels for industrial environments

8. Industry Trends

Development directions include:

Voltage scaling down to 0.8V core operation
Integration with signal conditioning functions
Increased adoption of capacitive isolation technology
Advanced packaging (3D TSV, fan-out WLP)
Protocol-aware smart translation (I3C, PCIe 6.0)