Part A
74LVC2G125DP
넥스페리아 USA 주식회사
- Lifecycle
- Active
- Stock
- 4957 PCS
- Package
- TSSOP-8
- Series
- 논리 - 버퍼, 드라이브, 수신기, 트랜시버
Replacement verdict
Not a drop-in replacement
The 74LVC2G125DP and 74LVC00ADTR2G are not functionally interchangeable. The 74LVC2G125DP is a dual buffer with 3-state outputs, while the 74LVC00ADTR2G is a quad 2-input NAND gate. They differ in logic function, channel count, output type, and package footprint, making direct substitution impossible without circuit redesign.
Different logic function
Different channel count
Different output type
Different package footprint
Parts at a glance
Part B
74LVC00ADTR2G
온세미
- Lifecycle
- Active
- Stock
- 7297 PCS
- Series
- 로직 - 도어 및 인버터
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74LVC2G125DP | 74LVC00ADTR2G | Why it matters |
|---|---|---|---|
| Logic Function | Dual Buffer/Line Driver with 3-State Outputs | Quad 2-Input NAND Gate | The core logic function determines whether the devices are functionally interchangeable; a buffer and a NAND gate perform entirely different logical operations. |
| Number of Channels | 2 | 4 | Channel count affects how many independent signal paths can be handled, impacting circuit density and board layout. |
| Output Type | 3-State | Push-Pull | 3-state outputs allow bus sharing and high-impedance isolation, while push-pull outputs cannot be tied together without contention. |
| Number of Inputs per Gate | 1 (per buffer) | 2 (per gate) | Input count per element defines the logic capability and the complexity of functions that can be implemented. |
| Package / Case | TSSOP-8 (SOT505-2) | TSSOP-14 | Package footprint and pin count must match the PCB layout for physical compatibility and drop-in replacement. |
| Pin Count | 8 | 14 | Different pin counts mean the devices are not pin-to-pin compatible and cannot be swapped without layout changes. |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | Matching supply voltage ranges ensures both devices can operate in the same system power environment. |
| Logic Family | LVC | LVC | Same logic family implies compatible input/output voltage thresholds and similar switching characteristics. |
| Propagation Delay (typ.) | 3.7 ns at 3.3 V | 4.4 ns at 3.3 V | Propagation delay affects timing margins and maximum operating frequency in synchronous designs. |
| Output Drive Current | ±24 mA at 3.0 V | ±24 mA at 3.0 V | Drive current determines the ability to drive loads and fan-out; identical values indicate similar load-driving capability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74LVC2G125DP | 74LVC00ADTR2G |
|---|---|---|
| Supplier | - | onsemi |
| Series | - | 74LVC |
| Part Status | Active | Obsolete |
| Logic Type | - | NAND Gate |
| Number of Circuits | - | 4 |
| Number of Inputs | - | 2 |
| Voltage - Supply | - | 1.2V ~ 3.6V |
| Current - Quiescent (Max) | - | 40 µA |
| Current - Output High Low | - | 24mA, 24mA |
| Logic Level - Low | - | 0.12V ~ 0.8V |
| Logic Level - High | - | 1.08V ~ 2V |
| Max Propagation Delay @ V Max CL | - | 5.1ns @ 3.3V, 50pF |
| Operating Temperature | - | -40°C ~ 125°C |
| Mounting Type | - | Surface Mount |
Frequently asked questions
What are the primary functional differences between the 74LVC2G125DP and the 74LVC00ADTR2G?
The 74LVC2G125DP is a dual non-inverting buffer/line driver with 3-state outputs, while the 74LVC00ADTR2G is a quad 2-input NAND gate. The 74LVC2G125DP provides signal buffering with high-impedance output capability, whereas the 74LVC00ADTR2G performs logic NAND operations without 3-state output functionality.
Are the 74LVC2G125DP and 74LVC00ADTR2G pin-to-pin compatible?
No. The 74LVC2G125DP is supplied in a TSSOP-8 package (DP suffix), while the 74LVC00ADTR2G is supplied in a TSSOP-14 package (DTR2G suffix). They have different pin counts, pin assignments, and package dimensions, so they are not drop-in replacements for each other.
What is the operating voltage range for both the 74LVC2G125DP and the 74LVC00ADTR2G?
Both devices operate over a supply voltage range of 1.65 V to 5.5 V, consistent with the LVC logic family. This allows operation in mixed 1.8 V, 2.5 V, 3.3 V, and 5 V systems.
Can the 74LVC2G125DP and 74LVC00ADTR2G be used in the same design for different logic functions?
Yes, provided the design accounts for their different functions, pinouts, and packages. The 74LVC2G125DP can be used for buffering or bus isolation with 3-state control, while the 74LVC00ADTR2G can be used for NAND logic operations. They are not interchangeable but can coexist in a system where both functions are required.
What are the output drive capabilities of the 74LVC2G125DP and the 74LVC00ADTR2G?
Both devices typically provide ±24 mA output drive at 3.3 V VCC, as specified in the LVC family standard. However, the 74LVC2G125DP features 3-state outputs, while the 74LVC00ADTR2G has standard push-pull outputs. Designers should verify the exact drive current from the respective manufacturer datasheets for the specific operating voltage and temperature conditions.
Do the 74LVC2G125DP and 74LVC00ADTR2G have the same propagation delay characteristics?
No. Propagation delay depends on the specific logic function and internal architecture. The 74LVC2G125DP buffer typically has a propagation delay in the range of a few nanoseconds at 3.3 V, while the 74LVC00ADTR2G NAND gate may have slightly different delay characteristics. Exact values must be obtained from the respective manufacturer datasheets.
Are the 74LVC2G125DP and 74LVC00ADTR2G available in automotive-qualified versions?
The 74LVC00ADTR2G is commonly available in an automotive-qualified version (indicated by the "A" in the part number and AEC-Q100 qualification from onsemi). The 74LVC2G125DP, as a Nexperia part, may have automotive-qualified equivalents under a different ordering code. Designers must confirm the specific qualification status with the manufacturer or authorized distributor before use in automotive applications.
What are the typical applications for the 74LVC2G125DP versus the 74LVC00ADTR2G?
The 74LVC2G125DP is typically used for signal buffering, bus driving, and 3-state bus isolation in mixed-voltage systems. The 74LVC00ADTR2G is used for general-purpose NAND logic functions, such as glue logic, signal gating, and combinatorial logic in digital circuits. Their applications differ based on the required logic function and output configuration.