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

STMicroelectronics 74V1G70CTR

Name: 74V1G70CTR
Brand: STMicroelectronics
SKU: 74V1G70CTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74V1G70CTR

Manufacturer:: STMicroelectronics

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74V1G70CTR.pdf

Description:: IC BUF NON-INVERT 5.5V SOT323-5

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74V1G70CTR from STMicroelectronics is a single non-inverting buffer IC in SOT323-5L package, operating from 2V to 5.5V supply, delivering 3.6ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of VCC-used for level-shifting between 5V and 3V logic domains in portable interface circuits.

For engineers reviewing the 74V1G70CTR datasheet, 74V1G70CTR pinout, 74V1G70CTR application, or 74V1G70CTR equivalent, key selection criteria include its power-down protected inputs, 28% VCC noise immunity, rail-to-rail input voltage acceptance (0–7V), and guaranteed 8mA output drive at 4.5V with balanced tPLH/tPHL delays.

Technical Context

This CMOS buffer employs sub-micron silicon gate and double-layer metal C2MOS technology, enabling high-speed operation with low static current (1µA max at 25°C) and robust latch-up immunity. Its two-stage internal buffer architecture ensures stable output transitions and high noise margin (VIH/VIL = 0.7VCC/0.3VCC).

The device features input protection that allows 0–7V signals regardless of VCC, making it suitable for mixed-voltage interfacing. Output impedance is symmetrical (|IOH| = IOL ≥ 8mA at VCC = 4.5V), and propagation delays are balanced (tPLH ≅ tPHL) across temperature ranges from –55°C to +125°C.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	2V to 5.5V - supports dual-supply systems and battery-powered 3.3V/5V designs
tPD (Typ.)	3.6ns at VCC = 5V, CL = 15pF - enables high-speed signal buffering in timing-critical paths
IOH/IOL	≥8mA at VCC = 4.5V - drives standard TTL loads and multiple CMOS inputs without fanout limitation
Input Voltage Range	–0.5V to +7.0V - accepts overvoltage inputs safely, enabling robust level translation
ICC (Max)	1µA at TA = 25°C - ultra-low quiescent power for always-on or battery-backed circuits
VIH/VIL	0.7VCC / 0.3VCC - provides 28% VCC noise margin, enhancing reliability in noisy industrial environments
Operating Temp	–55°C to +125°C - qualified for automotive under-hood and industrial control applications

Pinout & Package

SOT323-5L package: 1.35mm × 1.35mm × 0.95mm body, 0.65mm pitch, 5-terminal surface-mount outline with exposed pad not present; RoHS-compliant, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
1	NC	No connection - electrically isolated; must be left floating or grounded per layout best practice
2	1A	Data input - accepts 0–7V signals irrespective of VCC; power-down protected
3	GND	Ground reference - common return path for supply and signal currents
4	1Y	Non-inverting buffered output - delivers rail-aligned logic levels with symmetrical drive strength
5	VCC	Positive supply - powers internal circuitry; decoupling capacitor required within 1cm

Key Features

Feature	Design Value
Input Overvoltage Tolerance	0–7V independent of VCC - eliminates need for external clamping diodes in mixed-voltage interfaces
Power-Down Input Protection	Functional input behavior maintained even when VCC = 0V - prevents back-driving and bus contention
Symmetrical Output Drive	\|IOH\| = IOL ≥ 8mA at 4.5V - ensures consistent rise/fall times and minimal skew in clock/data paths
Balanced Propagation Delays	tPLH ≅ tPHL - reduces duty-cycle distortion in regenerated clock or enable signals
High Noise Immunity	VNIH = VNIL = 28% VCC (min) - rejects EMI in motor-drive or switching-power supply adjacent layouts

Applications

USB Peripheral Interface

Industrial Sensor Signal Conditioning

Use Scenario: Level-shifting between 5V microcontroller GPIO and 3.3V USB transceiver control lines.

IC Role / Device Role / Timing Role: Single non-inverting buffer providing voltage-domain isolation and noise-filtered signal regeneration.

Use Value: Eliminates level-shifter ICs while maintaining <3.6ns delay and 7V-tolerant input for hot-plug resilience.

Use Scenario: Buffering analog-to-digital converter (ADC) ready signals in PLC I/O modules.

IC Role / Device Role / Timing Role: Clean digital enable signal conditioner with rail-to-rail input compatibility and low ICC.

Use Value: Ensures reliable edge detection under wide temperature range (–55°C to +125°C) and noisy 24V DC field environments.

Automotive Body Control Module

Portable Medical Device Logic Interface

Use Scenario: Interfacing 5V CAN controller status outputs to 3.3V microcontroller interrupt inputs.

IC Role / Device Role / Timing Role: Fault-tolerant buffer with overvoltage-protected input and fast propagation for diagnostic response.

Use Value: Survives load-dump transients up to 7V on input without latch-up, validated per AEC-Q100 stress requirements.

Use Scenario: Isolating low-power sensor hub outputs from main SoC in battery-operated glucose monitors.

IC Role / Device Role / Timing Role: Ultra-low-quiescent buffer (1µA max) preserving battery life while regenerating wake-up pulses.

Use Value: Enables >10-year shelf life in standby mode without compromising signal integrity or timing accuracy.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G17DBVR	Higher ICC (10µA typ), 3.3V-only VCC range (1.65–5.5V), no 7V input tolerance	Lacks overvoltage input protection; requires external clamping for 5V-to-3.3V use	Prefer when only 3.3V system-level compatibility is needed and board space is constrained
NC7SZ17P5X	Lower drive (±24mA), wider VCC (1.65–5.5V), but no 7V input rating or power-down protection	Not suitable for hot-swap or unpowered-bus scenarios due to missing input protection	Select for cost-sensitive consumer applications where full 7V tolerance is unnecessary

Compared with SN74LVC1G17DBVR and NC7SZ17P5X, the 74V1G70CTR uniquely combines 7V input tolerance, zero-VCC input operation, and 1µA quiescent current-making it irreplaceable in mixed-voltage, fail-safe, or ultra-low-power embedded interfaces.

Availability

74V1G70CTR is available at Aetrix Electronics and suitable for USB peripheral interface, industrial sensor signal conditioning, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 74V1G70CTR 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, MCU, power, and sensing solutions for industrial, automotive, and consumer markets.

The 74V series targets high-speed, low-power logic interface applications-specifically engineered for voltage translation, bus buffering, and noise-immune signal regeneration in harsh or mixed-supply environments.

FAQ

Can 74V1G70CTR operate with VCC = 0V while accepting input signals?

Yes. The device features power-down protection on input: pin 2 (1A) accepts 0–7V signals even when VCC = 0V, preventing back-current flow and ensuring safe operation during power sequencing or partial system shutdown-confirmed by absolute maximum ratings and input equivalent circuit diagrams in the official ST datasheet.

What is the maximum capacitive load this buffer can drive reliably?

The 74V1G70CTR is characterized up to 50pF load capacitance, with tPLH/tPHL specified at 15pF and 50pF (e.g., 4.0ns typ at 5V/50pF). Driving >50pF may increase propagation delay and reduce edge rate; for heavier loads, consider adding series termination or using a higher-drive buffer like the 74V1G17 variant.

Is pin 1 (NC) required to be left unconnected, or can it be tied to GND?

Pin 1 is internally unconnected (NC) and must remain floating or be tied to GND per STMicroelectronics' layout guidance. Connecting it to VCC or leaving it unterminated near noisy traces may induce parasitic coupling; grounding is preferred for EMI reduction but has no electrical effect on functionality.

Does this device support 1.8V logic systems?

No. While VCC minimum is 2.0V, the input thresholds (VIH = 0.7VCC, VIL = 0.3VCC) yield VIH = 1.26V at 1.8V-below standard 1.8V logic high minimum (typically 1.38V). ST specifies valid operation only down to 2.0V VCC, and DC specs are not guaranteed below that voltage.

74V1G70CTR 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

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 1

Input Type:: -

Output Type:: Push-Pull

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

Voltage - Supply:: 2V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323-5

74V1G70CTR FAQ

1.How can I place an order for 74V1G70CTR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74V1G70CTR 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 74V1G70CTR reliable?

The price and inventory of 74V1G70CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74V1G70CTR is usually 5 days.

3.What payment methods are accepted for 74V1G70CTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74V1G70CTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74V1G70CTR?

74V1G70CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74V1G70CTR 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 74V1G70CTR?

For technical support, including 74V1G70CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74V1G70CTR requirements.

6.How does Aetrix verify that 74V1G70CTR is sourced from the original manufacturer or authorized distributors?

All 74V1G70CTR 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 74V1G70CTR meets industry standards.

7.What is the process for return or replacement of 74V1G70CTR?

All 74V1G70CTR units undergo pre-shipment inspection (PSI). If there is an issue with 74V1G70CTR, 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 74V1G70CTR part is unused and in its original packaging.

Return procedure for 74V1G70CTR:

1.Submit a request within 90 days.

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

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