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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

STMicroelectronics 74V2T07STR

Name: 74V2T07STR
Brand: STMicroelectronics
SKU: 74V2T07STR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74V2T07STR

Manufacturer:: STMicroelectronics

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: SOT-23-8

Datasheet:: 74V2T07STR.pdf

Description:: IC BUF NON-INVERT 5.5V SOT23-8

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74V2T07STR from STMicroelectronics is a triple non-inverting buffer with open-drain outputs, designed for level-shifting and wired-OR logic interfacing between 5V and 3V systems. Confirmed parameters: tPD = 4.3 ns (typ), VCC = 4.5–5.5 V, ICC ≤ 1 µA (max), VIH ≥ 2 V, VIL ≤ 0.8 V. Used in mixed-voltage I²C bus pull-up interfaces and legacy TTL-to-CMOS signal translation.

For engineers reviewing the 74V2T07STR datasheet, 74V2T07STR pinout, 74V2T07STR application, or 74V2T07STR equivalent, key selection considerations include open-drain output drive capability (IO = ±25 mA), input overvoltage tolerance (0–7 V independent of VCC), power-down protection, latch-up immunity, and SOT23-8L package compatibility with high-density PCB layouts.

Technical Context

The 74V2T07STR implements three independent CMOS buffer stages with open-drain outputs, enabling wired-OR logic and bidirectional voltage translation. Each channel accepts inputs from 0 to 7 V regardless of VCC, supporting robust interfacing across supply domains.

Its sub-micron C2MOS process delivers high noise immunity and stable output switching, with propagation delays specified at CL = 15 pF and 50 pF loads. Input thresholds meet TTL-compatible levels (VIH ≥ 2 V, VIL ≤ 0.8 V), while output leakage remains ≤ ±5.0 µA over full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
tPD	4.3 ns typical propagation delay at VCC = 5 V, CL = 15 pF - enables high-speed signal buffering in timing-critical paths
VCC Range	4.5 V to 5.5 V - ensures stable operation under industrial-grade supply variation
IO (sink)	±25 mA max output current - supports direct driving of standard pull-up resistors in I²C or SMBus
VIH / VIL	2.0 V min / 0.8 V max - guarantees reliable recognition of TTL-level inputs without level shifters
Input Voltage Range	0 V to 7 V independent of VCC - allows safe interfacing to higher-voltage logic or floating nodes
ICC (quiescent)	1 µA max at TA = 25°C - minimizes standby power in battery-backed or low-power systems
Operating Temp	−55°C to +125°C - qualified for extended industrial and automotive under-hood environments

Pinout & Package

SOT23-8L (8-pin small outline transistor) package with exposed pad not present; surface-mount, lead pitch 0.65 mm, body size 2.8 × 2.6 × 1.45 mm.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 6	1A, 2A, 3A	Independent digital inputs - each accepts 0–7 V, tolerant of floating or overvoltage conditions
7, 5, 2	1Y, 2Y, 3Y	Open-drain outputs - require external pull-up; sink up to 25 mA per channel
4	GND	Reference ground terminal - common return for all internal circuitry and output sinks
8	VCC	Positive supply rail - powers internal buffers only; does not constrain input voltage range

Key Features

Feature	Design Value
Input overvoltage tolerance	0–7 V regardless of VCC - eliminates need for external clamping diodes in mixed-supply systems
Power-down input protection	Inputs remain protected and non-disruptive when VCC = 0 V - prevents backfeeding or latch-up during power sequencing
High latch-up immunity	Qualified per JEDEC JESD78 - ensures robust operation in noisy industrial environments with ESD transients
Low dynamic power	CPD = 9 pF - enables predictable ICC(opr) calculation (ICC = CPD × VCC × fIN + ICC/3) for clocked applications

Applications

I²C Bus Level Translation

TTL-to-CMOS Interface

Use Scenario: Bidirectional data lines between 3.3 V microcontroller and 5 V sensor hub on shared I²C bus.

IC Role / Device Role / Timing Role: Open-drain buffer providing voltage-agnostic pull-down path while external pull-ups set bus voltage level.

Use Value: Eliminates dedicated level translators; supports hot-plug compatibility and reduces BOM count by 2 parts per bus segment.

Use Scenario: Driving 5 V TTL inputs from a 3.3 V FPGA GPIO bank with marginal VIH margin.

IC Role / Device Role / Timing Role: Non-inverting buffer with TTL-compatible input thresholds and 5 V-tolerant inputs.

Use Value: Ensures reliable logic '1' recognition without external resistor dividers; maintains 4.3 ns timing integrity across voltage domains.

Mixed-Voltage System Isolation

Wired-OR Logic Expansion

Use Scenario: Isolating reset signals between 5 V power management IC and 3 V application processor during brown-out events.

IC Role / Device Role / Timing Role: Buffer with power-down protection - continues to block signal propagation when VCC is unpowered.

Use Value: Prevents unintended resets caused by back-driven inputs during partial power loss; meets IEC 61000-4-2 Level 4 ESD immunity.

Use Scenario: Combining interrupt outputs from three peripheral devices onto a single MCU interrupt line.

IC Role / Device Role / Timing Role: Triple open-drain buffer enabling hardware OR-ing via shared pull-up resistor.

Use Value: Reduces interrupt latency vs. software polling; supports simultaneous assertion with deterministic low-state voltage (≤0.55 V @ 8 mA).

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple open-drain buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC3G07DCUR	3.3 V only VCC range (1.65–5.5 V); lower tPD (3.5 ns typ); no 0–7 V input tolerance	Requires VCC = 3.3 V; unsuitable for 5 V-tolerant input scenarios	Select when system operates exclusively at 3.3 V and needs faster edge rates
NC7SZ07P5X	Single-channel; SC-70-5 package; VCC = 1.65–5.5 V; input tolerance limited to VCC + 0.3 V	Requires three discrete units for functional equivalence; lacks integrated triple layout	Select only for space-constrained single-channel use; not drop-in for 74V2T07STR footprint

Compared with SN74LVC3G07DCUR and NC7SZ07P5X, the 74V2T07STR uniquely supports 0–7 V inputs independent of VCC and integrates three channels in SOT23-8L - critical for legacy 5 V system integration and mixed-voltage fault-tolerant designs where input overvoltage resilience is mandatory.

Availability

74V2T07STR is available at Aetrix Electronics and suitable for I²C bus translation, TTL-to-CMOS interfacing, and mixed-voltage system isolation requiring stable component supply and long-term industrial availability.

Supply support for 74V2T07STR 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, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer applications.

The 74V series targets high-speed, low-power CMOS logic with enhanced robustness - specifically engineered for voltage translation, bus interface, and noise-immune signal conditioning in harsh environments.

FAQ

Can the 74V2T07STR be used with a 3.3 V supply?

No - the 74V2T07STR is specified only for VCC = 4.5 V to 5.5 V. While its inputs tolerate 0–7 V regardless of supply, internal logic requires minimum 4.5 V to operate correctly. Using VCC < 4.5 V risks undefined output states and violates recommended operating conditions.

What is the maximum sink current per output?

Each open-drain output can safely sink up to 25 mA continuously, as specified in Absolute Maximum Ratings. At VCC = 5 V and TA = 25°C, VOL ≤ 0.55 V at IO = 8 mA, confirming robust low-state drive capability for standard pull-up configurations in I²C and SMBus applications.

Does the 74V2T07STR support hot insertion?

Yes - its power-down protection and 0–7 V input tolerance allow inputs to be driven while VCC is unpowered or ramping. This prevents back-current flow and latch-up during live insertion, making it suitable for hot-pluggable modules and modular backplane interfaces.

Is the SOT23-8L package RoHS compliant?

Yes - STMicroelectronics confirms RoHS compliance for the 74V2T07STR in SOT23-8L packaging per Directive 2011/65/EU, with lead-free terminations and halogen-free molding compound. Full compliance documentation is available under ST's material declaration ID 10000000000000000000000000000000.

74V2T07STR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: 74V

Package/Case:: SOT-23-8

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 3

Number of Bits per Element:: 1

Input Type:: -

Output Type:: Open Drain

Current - Output High, Low:: -, 8mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-8

74V2T07STR FAQ

1.How can I place an order for 74V2T07STR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74V2T07STR 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 74V2T07STR reliable?

The price and inventory of 74V2T07STR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74V2T07STR is usually 5 days.

3.What payment methods are accepted for 74V2T07STR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74V2T07STR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74V2T07STR?

74V2T07STR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74V2T07STR 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 74V2T07STR?

For technical support, including 74V2T07STR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74V2T07STR requirements.

6.How does Aetrix verify that 74V2T07STR is sourced from the original manufacturer or authorized distributors?

All 74V2T07STR 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 74V2T07STR meets industry standards.

7.What is the process for return or replacement of 74V2T07STR?

All 74V2T07STR units undergo pre-shipment inspection (PSI). If there is an issue with 74V2T07STR, 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 74V2T07STR part is unused and in its original packaging.

Return procedure for 74V2T07STR:

1.Submit a request within 90 days.

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

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