Part A
74LVTH244MTC
온세미
- Lifecycle
- Active
- Stock
- 1272 PCS
- Package
- TSSOP-20
- Series
- 논리 - 버퍼, 드라이브, 수신기, 트랜시버
Replacement verdict
Not a drop-in replacement
The 74LVTH244MTC and 74LVT00PW,118 are not functionally interchangeable. The 74LVTH244MTC is an octal non-inverting buffer/line driver with 3-state outputs in a TSSOP-20 package, while the 74LVT00PW,118 is a quad 2-input NAND gate in a TSSOP-14 package. They differ in logic function, channel count, pin count, and package footprint, making direct substitution impossible without board redesign.
Different logic function
Different channel count
Different pin count
Different package footprint
Parts at a glance
Part B
74LVT00PW,118
은지포미국주식회사
- Lifecycle
- Active
- Stock
- 992 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 | 74LVTH244MTC | 74LVT00PW,118 | Why it matters |
|---|---|---|---|
| Logic Function | Octal Buffer/Line Driver with 3-State Outputs | Quad 2-Input NAND Gate | The core logic function determines whether the parts are functionally interchangeable; a buffer/driver and a NAND gate perform entirely different operations. |
| Number of Channels / Gates | 8 buffers (2 banks of 4) | 4 NAND gates | Channel/gate count affects how many signals can be handled per package and impacts board layout and fan-out planning. |
| Output Type | 3-State | Totem-Pole (push-pull) | 3-state outputs allow bus sharing and high-impedance isolation, while totem-pole outputs cannot be tied together on a shared bus. |
| Supply Voltage Range (VCC) | 2.7 V to 3.6 V | 2.7 V to 3.6 V | Both operate in the 3.3 V LVT/LVTH family range, so supply compatibility is maintained across the same logic family. |
| Propagation Delay (tpd) | ~3.5 ns (typical at 3.3 V) | ~3.0 ns (typical at 3.3 V) | Propagation delay affects timing margins in synchronous designs; small differences may matter in high-speed applications. |
| Output Drive Current (IOH/IOL) | -32 mA / 64 mA | -32 mA / 64 mA | Drive current determines the ability to drive loads and capacitive lines; matching values indicate similar output strength. |
| Package Type | TSSOP-20 | TSSOP-14 | Different pin counts and package sizes affect PCB footprint and cannot be directly substituted without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Both meet industrial temperature requirements, ensuring reliable operation in the same environmental conditions. |
| Input Type | TTL-Compatible | TTL-Compatible | TTL-compatible inputs allow direct interfacing with 5 V TTL logic without additional level shifting. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74LVTH244MTC | 74LVT00PW,118 |
|---|---|---|
| Supplier | - | NXP USA Inc.,Rochester Electronics, LLC |
| Series | 74LVTH | 74LVT |
| Part Status | Obsolete | Obsolete |
| Logic Type | Buffer, Non-Inverting | NAND Gate |
| Number of Circuits | - | 4 |
| Number of Inputs | - | 2 |
| Voltage - Supply | 2.7V ~ 3.6V | 2.7V ~ 3.6V |
| Current - Output High Low | 32mA, 64mA | 20mA, 32mA |
| Logic Level - Low | - | 0.8V |
| Logic Level - High | - | 2V |
| Max Propagation Delay @ V Max CL | - | 2.7ns @ 3.3V, 50pF |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Elements | 2 | - |
| Number of Bits per Element | 4 | - |
| Output Type | 3-State | - |
Frequently asked questions
What are the primary functional differences between the 74LVTH244MTC and the 74LVT00PW,118?
The 74LVTH244MTC is an octal buffer/line driver with 3-state outputs, designed for bus-oriented applications. The 74LVT00PW,118 is a quad 2-input NAND gate. They serve fundamentally different logic functions and are not functionally interchangeable.
Do the 74LVTH244MTC and 74LVT00PW,118 operate at the same supply voltage range?
Yes. Both devices are members of the LVT/LVTH family and operate over a recommended supply voltage range of 2.7 V to 3.6 V, with typical operation at 3.3 V.
Are the 74LVTH244MTC and 74LVT00PW,118 available in the same package type?
No. The 74LVTH244MTC is supplied in a 20-pin TSSOP package (MTC suffix). The 74LVT00PW,118 is supplied in a 14-pin TSSOP package (PW suffix). They have different pin counts and PCB land patterns.
Can the 74LVTH244MTC and 74LVT00PW,118 be used in the same application as direct replacements for one another?
No. Because one is an octal 3-state buffer and the other is a quad 2-input NAND gate, they perform different logic operations and have different pinouts. Direct substitution is not possible without redesigning the surrounding circuit.
What are the output drive characteristics of the 74LVTH244MTC compared to the 74LVT00PW,118?
The 74LVTH244MTC provides 3-state outputs with typical drive capability of ±32 mA at 3.3 V, suitable for bus driving. The 74LVT00PW,118 provides standard push-pull outputs with typical drive capability of ±32 mA at 3.3 V, but without 3-state control.
Do both the 74LVTH244MTC and 74LVT00PW,118 support live insertion and hot-swap applications?
Yes. Both devices are designed with circuitry that supports live insertion and hot-swap by maintaining high-impedance outputs during power-up and power-down, preventing bus contention.
What is the difference in propagation delay between the 74LVTH244MTC and the 74LVT00PW,118?
Both devices have similar propagation delay characteristics typical of the LVT/LVTH family, with typical tPD values around 3.5 ns to 4.5 ns at 3.3 V depending on load conditions. Exact values should be verified from the respective manufacturer datasheets.
Are the 74LVTH244MTC and 74LVT00PW,118 compatible with 5 V input signals?
Yes. Both devices feature 5 V tolerant inputs and outputs when VCC is within the recommended operating range, allowing interfacing with 5 V logic systems without additional level shifting.