SN74LVC1G125DBVR - Single Bus Buffer Gate 3-State | TI
MPN: SN74LVC1G125DBVR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.41 | $0.41 |
| 10 | $0.35 | $3.50 |
| 100 | $0.28 | $28.00 |
| 500 | $0.22 | $110.00 |
| 1,000 | $0.18 | $180.00 |
Drop-in alternatives for SN74LVC1G125DBVR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74LVC1G125DBVT
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC1G125DBVRE4
β Drop-Inπ Reference alternative (not in catalog)
NC7SZ125
β Drop-Inπ Reference alternative (not in catalog)
74LVC1G125DBVR
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC1G125DBVR Maximum Ratings & Electrical Characteristics
| Logic Family | LVC |
| Number of Elements | 1 |
| Number of Bits per Element | 1 |
| Output Type | 3-State |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Maximum Input Voltage | 5.5 V |
| Output Drive Current | Β±24 mA at 3.3 V |
| Maximum ICC | 10 Β΅A |
| Propagation Delay (tpd) | 3.3 V (specific value [DATA_NEEDED]) |
| Ioff Support | Yes |
| Operating Temperature Range | -40Β°C to 125Β°C |
| Package | SOT-23-5 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 1 (260Β°C unlimited) |
SN74LVC1G125DBVR Pin Configuration
| Pin 1 | A β Input |
| Pin 2 | GND β Ground |
| Pin 3 | Y β Output |
| Pin 4 | OE β Output enable (active low) |
| Pin 5 | VCC β Power supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74LVC1G125DBVR is suitable for 6 applications: Level Shifting, Bus Isolation, Signal Buffering, Industrial Control, Consumer Electronics, Communication Interfaces.
Level Shifting
The SN74LVC1G125DBVR is ideal for level shifting between 1.8-V and 3.3-V or 5-V logic. Its wide VCC range (1.65 V to 5.5 V) and 5.5-V input tolerance allow safe translation in mixed-voltage systems. For example, it can buffer a 1.8-V microcontroller output to a 3.3-V peripheral, ensuring proper logic levels without additional components. The 3-state output also enables bus isolation during level shifting.
Recommended
Bus Isolation
The 3-state output of the SN74LVC1G125DBVR allows multiple devices to share a common bus without contention. When the OE pin is low, the output is high-impedance, effectively isolating the device from the bus. This is useful in multi-board systems where one board may be powered down while others remain active. The Ioff feature prevents back-feeding current, ensuring safe partial-power-down operation.
Recommended
Signal Buffering
The SN74LVC1G125DBVR provides signal buffering to drive longer traces or multiple loads. With Β±24-mA output drive at 3.3 V, it can drive LEDs, relays, or multiple logic inputs. The low power consumption (10 Β΅A ICC) makes it suitable for battery-powered devices. The device can drive capacitive loads up to 50 pF while meeting all specifications, ensuring signal integrity.
Recommended
Industrial Control
In industrial control systems, the SN74LVC1G125DBVR is used for buffering sensor signals and isolating control buses. Its wide operating temperature range (-40Β°C to 125Β°C) and robust CMOS design make it suitable for harsh environments. The 3-state output allows multiple sensors to share a single ADC input, reducing component count. The device's low power consumption is beneficial in remote or battery-powered industrial sensors.
Recommended
Consumer Electronics
The SN74LVC1G125DBVR is used in consumer electronics for level shifting and signal buffering in devices like smartphones, tablets, and wearables. Its small SOT-23-5 package is ideal for space-constrained PCBs. The low power consumption extends battery life in portable devices. The device supports partial-power-down mode, which is critical for power management in modern electronics.
Recommended
Communication Interfaces
The SN74LVC1G125DBVR is used in communication interfaces such as UART, SPI, and I2C for buffering and level shifting. Its 3-state output allows multiple devices to share a communication bus. The wide VCC range supports various logic levels, and the 5.5-V input tolerance ensures compatibility with legacy 5-V peripherals. The low propagation delay ensures high-speed communication.
Recommended
Engineering reference data for SN74LVC1G125DBVR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74LVC1G125DBVT | SN74LVC1G125DCKR | NC7SZ125 | 74LVC1G125DBVR |
|---|---|---|---|---|---|
| Package | SOT-23-5 | SOT-23-5 | SC70-5 | SOT-23-5 | SOT-23-5 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | Nexperia |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| Output Drive | Β±24 mA at 3.3 V | Β±24 mA at 3.3 V | Β±24 mA at 3.3 V | Β±24 mA at 3.3 V | Β±24 mA at 3.3 V |
| Max ICC | 10 Β΅A | 10 Β΅A | 10 Β΅A | 10 Β΅A | 10 Β΅A |
| Ioff Support | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40Β°C to 125Β°C | -40Β°C to 125Β°C | -40Β°C to 125Β°C | -40Β°C to 125Β°C | -40Β°C to 125Β°C |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Wide supply voltage range (1.65 V to 5.5 V) (vs NC7SZ125)
- Low power consumption (10 Β΅A max ICC) (vs 74LVC1G125DBVR)
- Ioff support for partial-power-down (vs SN74LVC1G125DCKR)
Design Notes
Place decoupling capacitor (0.1 Β΅F) close to VCC pin to reduce noise. Ensure proper ground plane for signal integrity.
Do not leave OE pin floating; tie it to VCC or GND to avoid undefined output states. For capacitive loads >50 pF, add a series resistor to limit current.
The device dissipates minimal power due to CMOS design, but ensure adequate copper area for heat dissipation in high-temperature environments.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified; automotive version available.
