Part A
74HC4050D
도시바 반도체 및 스토리지
- Lifecycle
- Active
- Stock
- 3727 PCS
- Package
- SOIC-16
- Series
- 논리 - 버퍼, 드라이브, 수신기, 트랜시버
Replacement verdict
Not a drop-in replacement
The 74HC4053D and 74HC4050D are not functionally interchangeable despite sharing the same 74HC logic family and SO16 package. The 74HC4053D is a triple single-pole double-throw analog multiplexer/demultiplexer with bidirectional signal routing, while the 74HC4050D is a hex non-inverting buffer with high-to-low level shifting capability. Their internal architectures, channel configurations, and signal-handling characteristics differ fundamentally, making direct substitution impossible without circuit redesign.
Different function type
Different channel count
Different signal path
Different logic configuration
Parts at a glance
Part B
74HC4053D
도시바 반도체 및 스토리지
- Lifecycle
- Active
- Stock
- 1212 PCS
- Package
- SOIC-16
- Series
- 인터페이스 - 아날로그 스위치, 멀티플렉서, 리플렉서
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74HC4053D | 74HC4050D | Why it matters |
|---|---|---|---|
| Function | Triple 2-channel analog multiplexer/demultiplexer | Hex non-inverting buffer/converter | These devices perform fundamentally different functions, so they are not functionally substitutable in a circuit. |
| Signal Type | Analog and digital signal switching | Digital logic signal buffering | The 74HC4053D can pass analog signals, while the 74HC4050D is intended for digital logic level signals only. |
| Number of Channels | 3 channels (each 2:1 multiplexer) | 6 buffer channels | Channel count determines how many independent signals can be routed or buffered in a design. |
| Control Inputs | Select inputs plus enable inputs | None (buffers are always active) | The 74HC4053D requires logic control to route signals, whereas the 74HC4050D operates without select or enable control. |
| On-Resistance | Typically around 80 Ω at 4.5 V | Not applicable (no analog switch) | On-resistance affects analog signal integrity and voltage drop in multiplexer applications. |
| Propagation Delay | Typically around 10 ns at 4.5 V | Typically around 10 ns at 4.5 V | Propagation delay influences timing performance in high-speed digital systems. |
| Supply Voltage Range | 2 V to 10 V | 2 V to 6 V | The usable supply voltage range must match the system power rails for reliable operation. |
| Package | SO16 (SOIC-16) | SO16 (SOIC-16) | Package compatibility affects PCB footprint and assembly, even when electrical functions differ. |
| Logic Family | HC (high-speed CMOS) | HC (high-speed CMOS) | Matching logic families helps ensure compatible input thresholds and output drive characteristics. |
| Typical Application | Analog/digital signal routing and multiplexing | Logic level buffering and signal isolation | Intended application indicates whether the part can serve as a direct substitute in a given circuit. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC4050D | 74HC4053D |
|---|---|---|
| Series | 74HC | - |
| Part Status | Active | Active |
| Logic Type | Buffer, Non-Inverting | - |
| Number of Elements | 6 | - |
| Number of Bits per Element | 1 | - |
| Current - Output High Low | 7.8mA, 7.8mA | - |
| Voltage - Supply | 2V ~ 6V | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Multiplexer / Demultiplexer Circuit | - | 2:1 |
| Number of Circuits | - | 3 |
| On - State Resistance(Max) | - | 100Ohm |
| Channel - to - Channel Matching(ΔRon) | - | 5Ohm (Typ) |
| Voltage - Supply, Single (V+) | - | 2V ~ 6V |
| Switch Time(Ton Toff)(Max) | - | 38ns, 38ns |
| -3 dB Bandwidth | - | 200MHz |
| Channel Capacitance(CS(off)CD(off)) | - | 5pF |
| Current - Leakage(IS(off))(Max) | - | 100nA |
| Crosstalk | - | -50dB @ 1MHz |
Frequently asked questions
What are the primary functional differences between the 74HC4053D and the 74HC4050D?
The 74HC4053D is a triple single-pole double-throw (SPDT) analog multiplexer/demultiplexer with a common enable input, designed to switch analog or digital signals. The 74HC4050D is a hex non-inverting buffer/converter with high-to-low level shifting capability, intended for digital signal buffering and logic level conversion. They serve fundamentally different functions and are not interchangeable.
Can the 74HC4053D and 74HC4050D be used as direct substitutes for each other?
No. The 74HC4053D is an analog switch/multiplexer, while the 74HC4050D is a digital buffer. Their pin functions, internal circuitry, and electrical characteristics differ, so they cannot be directly substituted without redesigning the circuit.
What are the typical supply voltage ranges for the 74HC4053D and 74HC4050D?
Both devices are members of the 74HC family and typically operate over a supply voltage range of 2.0 V to 6.0 V. However, the 74HC4053D also supports dual-supply operation (e.g., ±5 V) for analog signal switching, while the 74HC4050D is intended for single-supply digital applications.
Do the 74HC4053D and 74HC4050D have the same pinout and package options?
No. The 74HC4053D is commonly offered in a 16-pin SOIC package, while the 74HC4050D is typically available in a 16-pin SOIC package as well, but their pin assignments differ due to different internal functions. Always consult the respective manufacturer datasheets for exact pinout and package details.
Which device is suitable for analog signal switching, the 74HC4053D or the 74HC4050D?
The 74HC4053D is suitable for analog signal switching because it is an analog multiplexer/demultiplexer with bidirectional signal paths and low on-resistance. The 74HC4050D is a digital buffer and is not designed for analog signal routing.
Can the 74HC4050D be used for level shifting between 5 V and 3.3 V logic?
Yes. The 74HC4050D is specifically designed as a non-inverting buffer that can accept high-level input voltages (up to 15 V) while operating from a lower supply voltage, making it suitable for high-to-low level shifting in digital systems.
What are the key electrical parameters to compare when selecting between the 74HC4053D and 74HC4050D?
Key parameters include on-resistance and leakage current for the 74HC4053D, and propagation delay, output drive current, and input voltage thresholds for the 74HC4050D. These parameters must be verified from the respective manufacturer datasheets for the specific application.