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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

STMicroelectronics 74V1G384CTR

Name: 74V1G384CTR
Brand: STMicroelectronics
SKU: 74V1G384CTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74V1G384CTR

Manufacturer:: STMicroelectronics

Category:: Signal Switches, Multiplexers, Decoders

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: 74V1G384CTR.pdf

Description:: IC BUS SWITCH 1 X 1:1 SOT323-5

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Product details

Overview

74V1G384CTR from STMicroelectronics is a single high-speed CMOS bus switch in SOT323-5L package, designed for bidirectional signal routing in 3.0–5.5 V systems. It features 0.5 ns typical propagation delay at 5 V, 7 Ω typical on-resistance at V_IN = 0 V / I_I/O = 30 mA, and 5 V-tolerant OE control input-enabling use in mixed-voltage I/O interfaces such as USB peripheral switching and low-latency data path isolation.

For engineers reviewing the 74V1G384CTR datasheet, 74V1G384CTR pinout, 74V1G384CTR application, or 74V1G384CTR equivalent, key selection criteria include ON-resistance vs. voltage, enable timing (t_PZL = 3.3 ns typ. at 5 V), leakage current in OFF state (±0.1 µA), and compatibility with 3.3 V/5 V logic domains in portable and industrial interface designs.

Technical Context

This device implements a single-pole single-throw (SPST) analog switch using silicon gate C2MOS technology, with active-low enable (OE) controlling conduction between two bidirectional I/O terminals. Its 5 V-tolerant OE pin allows direct interfacing with legacy 5 V controllers while operating from a 3.3 V supply.

Switching performance is characterized by t_PLZ = 3.8 ns and t_PZL = 3.3 ns (typ. at V_CC = 5.0 V), and R_ON varies predictably with input voltage-7 Ω at V_I/O = 0 V and 14 Ω at V_I/O = 2.4 V-supporting precise analog or digital signal pass-through without level-shifting circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
t_PD	0.5 ns typical at V_CC = 5 V - enables sub-nanosecond signal routing in high-speed serial links and clock distribution paths.
R_ON	7 Ω typical at V_I/O = 0 V, I_I/O = 30 mA - minimizes voltage drop and signal distortion in low-voltage data buses.
V_CC Range	3.0–5.5 V - supports dual-supply interoperability across 3.3 V microcontrollers and 5 V peripherals.
OE Input Tolerance	5 V tolerant - permits direct connection to 5 V control signals without external level shifters.
I_OFF Leakage	±0.1 µA max at V_CC = 5.5 V - ensures minimal power loss and signal integrity in battery-powered standby modes.
C_I/O	7 pF - limits capacitive loading on high-impedance source nodes in sensor multiplexing or ADC front-end applications.

Pinout & Package

SOT323-5L package: 5-pin surface-mount, 1.80 × 2.20 mm body, 0.65 mm pitch, tape-and-reel compatible. Pin 1 marked by notch or bevel.

Pin/Terminal	Circuit Role	Design Meaning
1	I/O	Bidirectional signal terminal - connects to either side of the switched path; no internal directionality.
2	O/I	Bidirectional signal terminal - electrically identical to Pin 1; forms the switch channel with Pin 1.
3	GND	Reference ground for V_CC, control logic, and analog path - must be low-impedance for noise immunity.
4	OE	Active-high enable input - switch conducts when OE = LOW (logic 0); high-impedance when OE = HIGH.
5	V_CC	Positive supply - powers internal logic and defines R_ON and voltage tolerance ranges.

Key Features

Feature	Design Value
High-speed switching	t_PZL = 3.3 ns typ. at 5 V - reduces latency in real-time data acquisition and FPGA I/O expansion.
Low on-resistance variation	R_ON = 7–14 Ω over 0–2.4 V I/O swing - maintains consistent signal fidelity across TTL and CMOS logic thresholds.
5 V-tolerant control	OE accepts 0–5.5 V inputs regardless of V_CC - eliminates need for discrete level translators in mixed-voltage boards.
Ultra-low quiescent current	I_CC = 1 µA max at 25°C - extends battery life in always-on IoT edge nodes and portable instrumentation.

Applications

USB Peripheral Switching

Microcontroller GPIO Expansion

Use Scenario: Selecting between two USB upstream ports on a handheld diagnostic tool with shared PHY.

IC Role / Device Role / Timing Role: Bidirectional analog switch isolating D+/D− lines under MCU-controlled OE signal.

Use Value: 0.5 ns t_PD preserves USB 1.1 full-speed timing margins; 7 Ω R_ON avoids signal rise-time degradation.

Use Scenario: Extending limited GPIO count on an STM32L4 MCU to drive multiple LED indicators and pushbutton inputs.

IC Role / Device Role / Timing Role: Signal path selector enabling time-multiplexed access to shared I/O pins.

Use Value: 3.3 ns t_PZL allows rapid reconfiguration within 10 µs interrupt service routines; 1 µA I_CC sustains ultra-low-power sleep mode.

LVDS Signal Isolation

ADC Channel Multiplexing

Use Scenario: Enabling/disabling LVDS clock distribution to two FPGAs in a test equipment rack with shared reference clock.

IC Role / Device Role / Timing Role: Low-capacitance (7 pF) analog switch inserted in differential clock path.

Use Value: 7 pF C_I/O prevents skew and jitter accumulation; 5 V-tolerant OE accepts backplane control signals directly.

Use Scenario: Routing analog sensor outputs (thermocouple, RTD) to a single SAR ADC input in a multi-channel industrial monitor.

IC Role / Device Role / Timing Role: Low-R_ON, low-leakage analog switch in precision front-end signal chain.

Use Value: ±0.1 µA I_OFF prevents DC error injection; 14 Ω R_ON at 2.4 V ensures <0.01% gain error at 10 kΩ source impedance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G3157DBVR	R_ON = 10 Ω typ. at 3.3 V; t_PD = 3.5 ns; no 5 V-tolerant control	Requires level-shifter for 5 V OE; better suited for 3.3 V-only systems with tighter board space	Select when V_CC is fixed at 3.3 V and footprint constraints favor SOT-23-6.
NC7SZ384P5X	R_ON = 12 Ω typ. at 5 V; t_PD = 2.5 ns; OE not 5 V-tolerant	Limited to 5 V-only operation; higher R_ON increases insertion loss in analog paths	Prefer for cost-sensitive 5 V-only designs where 5 V-tolerance is unnecessary.

Compared with SN74LVC1G3157DBVR and NC7SZ384P5X, the 74V1G384CTR uniquely combines 5 V-tolerant OE, sub-nanosecond delay, and <10 Ω R_ON-making it optimal for mixed-voltage, low-latency, and precision analog switching where control domain independence is required.

Availability

74V1G384CTR is available at Aetrix Electronics and suitable for USB peripheral switching, microcontroller GPIO expansion, LVDS signal isolation, and ADC channel multiplexing requiring stable component supply and long-term industrial availability.

Supply support for 74V1G384CTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with broad manufacturing and quality certifications.

The 74V series targets high-speed, low-power logic and interface solutions for portable and battery-operated systems-emphasizing nanosecond timing, rail-to-rail voltage operation, and robust ESD tolerance.

FAQ

Is the 74V1G384CTR pin-compatible with the 74LVC1G3157?

No. The 74V1G384CTR uses a 5-pin SOT323 layout with I/O–O/I–GND–OE–V_CC, while the 74LVC1G3157 uses a 6-pin SOT-23 package with separate IN/OUT pins and different pin ordering. Physical replacement requires PCB redesign and signal reassignment.

What is the maximum continuous current rating per I/O path?

The absolute maximum DC output current is ±50 mA, but the recommended operating condition specifies ≤30 mA for R_ON characterization at V_CC = 3.0–4.5 V. Sustained operation above 30 mA may increase R_ON drift and thermal stress, especially at elevated ambient temperatures.

Can the 74V1G384CTR operate with V_CC = 2.8 V?

No. The recommended operating V_CC range is strictly 3.0 V to 5.5 V. At 2.8 V, the device fails to meet VIH/VIL thresholds, R_ON rises unpredictably, and t_PD degrades beyond specification-potentially causing logic errors or signal corruption in downstream circuits.

Does the 74V1G384CTR support hot-swap or live-insertion?

It is not rated for hot-swap. The absolute maximum ratings specify VI and VO limits relative to GND and V_CC, with no defined safe insertion sequence. Applying V_CC or signals before establishing stable ground can exceed diode current limits (±20 mA) and risk latch-up or permanent damage.

74V1G384CTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: 74V

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Bus Switch

Circuit:: 1 x 1:1

Independent Circuits:: 1

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 3V ~ 5.5V

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323-5

74V1G384CTR FAQ

1.How can I place an order for 74V1G384CTR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74V1G384CTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74V1G384CTR reliable?

The price and inventory of 74V1G384CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74V1G384CTR is usually 5 days.

3.What payment methods are accepted for 74V1G384CTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74V1G384CTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74V1G384CTR?

74V1G384CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74V1G384CTR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74V1G384CTR?

For technical support, including 74V1G384CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74V1G384CTR requirements.

6.How does Aetrix verify that 74V1G384CTR is sourced from the original manufacturer or authorized distributors?

All 74V1G384CTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74V1G384CTR meets industry standards.

7.What is the process for return or replacement of 74V1G384CTR?

All 74V1G384CTR units undergo pre-shipment inspection (PSI). If there is an issue with 74V1G384CTR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74V1G384CTR part is unused and in its original packaging.

Return procedure for 74V1G384CTR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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