74V1G05CTR STMicroelectronics Integrated Circuit (Other) In Stock
74V1G05CTR is a single-gate open-drain inverter from STMicroelectronics, operating from 1.65 V to 5.5 V supply with a maximum output sink current of 4 mA in a tiny SOT-323 5-pin package. Its open-drain output enables wired-AND logic, level shifting, and bus pull-up configurations. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- 74V1G05CTR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74V1G05CTR?
- Single-gate open-drain inverter enabling wired-AND logic and multi-master bus configurations
- Wide supply range of 1.65 V to 5.5 V for compatibility with 1.8 V, 3.3 V, and 5 V logic systems
- Ultra-compact 5-pin SOT-323 package occupying less than 2 mm² for space-constrained PCB designs
- High output sink capability up to 4 mA supporting LED drive and pull-up resistor networks
What is 74V1G05CTR used for?
The 74V1G05CTR is widely used for logic signal inversion with open-drain outputs in microcontroller GPIO expansion, I2C bus level shifting, and wired-AND bus arbitration circuits. Its 1.65 V to 5.5 V supply range allows direct interfacing between 1.8 V low-power logic and 5 V legacy peripherals without additional components. The SOT-323 package makes it a common choice for space-constrained consumer electronics, IoT modules, and sensor signal conditioning boards.
What are the specifications of 74V1G05CTR?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT323 |
| YTEOL | 0 |
| Family | 74V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.004A |
| Number of Functions | 1 |
| Number of Inputs | 1 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 50mA |
| Prop. Delay@Nom-Sup | 11ns |
| Propagation Delay (tpd) | 12.5ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the 74V1G05CTR datasheet?
74V1G05CTR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for 74V1G05CTR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output configuration does the 74V1G05CTR use, and why is it preferred for I2C bus level shifting?
The 74V1G05CTR uses an open-drain output, meaning the output transistor can only pull the line low (sink current up to 4 mA) and relies on an external pull-up resistor to reach the high state. This property allows the device to bridge different logic voltage levels on I2C buses — for example, a 1.8 V MCU and a 5 V sensor — by selecting a pull-up resistor tied to the higher supply.
What supply voltage range does 74V1G05CTR operate over, and how does it handle mixed-voltage systems?
The 74V1G05CTR operates from 1.65 V to 5.5 V, making it compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families. The open-drain output voltage is determined by the external pull-up resistor's supply rail, not the device VCC, so the output high level can safely reach 5 V even when the device itself runs on 1.8 V — a critical feature for voltage translation.
How does the SOT-323 package of 74V1G05CTR affect PCB layout for high-density designs?
The SOT-323 package has a body of approximately 2.0 mm x 2.1 mm with a 1.3 mm pitch between leads, occupying only about 4.2 mm² of board area including pads. This compact footprint allows designers to place multiple 74V1G05CTR inverters within 1 cm² for signal conditioning arrays, and the 5-pin variant provides a dedicated ground pin for stable logic performance.
When would 74V1G05CTR be a better choice than a push-pull single-gate inverter such as 74V1G04?
The 74V1G05CTR is preferred over a push-pull inverter like 74V1G04 when multiple devices share a single signal line that requires wired-AND arbitration, such as I2C SDA or interrupt request lines. Its open-drain output prevents bus contention when two or more drivers simultaneously assert low, whereas a push-pull output driving a shared line could create a short-circuit current exceeding 10 mA.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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