Part A
74HCT00D
도시바 반도체 및 스토리지
- Lifecycle
- Active
- Stock
- 1289 PCS
- Package
- SOIC-20
- Series
- 로직 - 도어 및 인버터
Replacement verdict
Not a drop-in replacement
The 74HCT4052D and 74HCT00D are functionally unrelated devices and cannot serve as substitutes for one another. The 74HCT4052D is a dual 4-channel analog multiplexer/demultiplexer, while the 74HCT00D is a quad 2-input NAND gate. Their internal architectures, signal paths, and application roles are fundamentally different, making cross-replacement technically invalid regardless of package or logic family similarities.
Different logic function
Different signal path type
Different channel configuration
Different application role
Parts at a glance
Part B
74HCT4052D
도시바 반도체 및 스토리지
- Lifecycle
- Active
- Stock
- 3196 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 | 74HCT4052D | 74HCT00D | Why it matters |
|---|---|---|---|
| Function | Dual 4-channel analog multiplexer/demultiplexer | Quad 2-input NAND gate | The core logic function is fundamentally different, so these parts are not functionally interchangeable in a circuit. |
| Logic Type | Analog switch / multiplexer | Digital logic gate | One device routes analog signals while the other performs Boolean logic, determining the type of signal path supported. |
| Number of Channels / Gates | 2 channels (4:1 each) | 4 gates (2-input each) | Channel and gate count affect how many independent signals can be processed per package. |
| Supply Voltage Range (VCC) | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Both operate in the standard 5 V HCT logic range, so supply compatibility is similar. |
| Propagation Delay | Typically around 4 ns to 10 ns depending on load and supply | Typically around 9 ns to 19 ns depending on load and supply | Switching speed influences timing margins in high-speed digital or signal-routing applications. |
| On-Resistance / Output Drive | Low on-resistance analog switch behavior | Standard CMOS/TTL-compatible digital output drive | Analog switches are characterized by on-resistance, while logic gates are characterized by output drive current, reflecting different electrical roles. |
| Input Type | Analog and digital signal inputs with select control | TTL-compatible digital logic inputs | Input compatibility determines whether the device can directly interface with analog signals or only digital logic levels. |
| Package | SO16 | SO14 | Different pin counts and package sizes affect PCB footprint and layout compatibility. |
| Pin Count | 16 | 14 | A different pin count means the devices cannot share the same footprint or socket. |
| Typical Application | Signal routing, analog multiplexing, data selection | Logic gating, signal inversion, digital control | Application intent highlights that these parts serve different circuit functions and are not substitutes for one another. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HCT00D | 74HCT4052D |
|---|---|---|
| Series | 74HCT | - |
| Part Status | Obsolete | Active |
| Logic Type | NAND Gate | - |
| Number of Circuits | 4 | 2 |
| Number of Inputs | 2 | - |
| Voltage - Supply | 4.5V ~ 5.5V | - |
| Current - Quiescent (Max) | 1 µA | - |
| Current - Output High Low | 4mA, 4mA | - |
| Logic Level - Low | 0.8V | - |
| Logic Level - High | 2V | - |
| Max Propagation Delay @ V Max CL | 17ns @ 5.5V, 50pF | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Switch Circuit | - | DP4T |
| Multiplexer / Demultiplexer Circuit | - | 4:1 |
| On - State Resistance(Max) | - | 150Ohm |
| Channel - to - Channel Matching(ΔRon) | - | 6Ohm |
| Voltage - Supply, Single (V+) | - | 4.5V ~ 5.5V |
| Voltage - Supply, Dual (V±) | - | ±1V ~ 5V |
| Switch Time(Ton Toff)(Max) | - | 60ns, 48ns |
| -3 dB Bandwidth | - | 180MHz |
| Channel Capacitance(CS(off)CD(off)) | - | 3.5pF |
| Current - Leakage(IS(off))(Max) | - | 2µA |
| Crosstalk | - | -60dB @ 1MHz |
Frequently asked questions
What are the primary functions of the 74HCT4052D and 74HCT00D?
The 74HCT4052D is a dual 4-channel analog multiplexer/demultiplexer, while the 74HCT00D contains four independent 2-input NAND gates. They serve completely different logic and signal-routing roles.
Are the 74HCT4052D and 74HCT00D pin-compatible?
No. The 74HCT4052D is typically supplied in a 16-pin SOIC package, and the 74HCT00D is typically supplied in a 14-pin SOIC package. They have different pin counts and pin functions, so they are not pin-compatible.
Can the 74HCT4052D and 74HCT00D operate from the same supply voltage?
Yes. Both are HCT-family devices and are specified for a nominal 5 V supply, with typical operating ranges of 4.5 V to 5.5 V. However, their input thresholds and output drive characteristics differ because of their different internal functions.
Do both devices have TTL-compatible input levels?
Yes. Both the 74HCT4052D and 74HCT00D are HCT-type devices, which means their inputs are compatible with TTL logic levels when operated at 5 V.
Which device is suitable for analog signal switching?
The 74HCT4052D is suitable for analog signal switching because it is an analog multiplexer/demultiplexer with bidirectional signal paths. The 74HCT00D is a digital NAND gate and is not intended for analog signal routing.
Which device is used for logic inversion or gating?
The 74HCT00D is used for logic gating and inversion because it contains four 2-input NAND gates. The 74HCT4052D does not provide NAND logic functions.
Can the 74HCT4052D and 74HCT00D be used in the same design?
Yes, they can be used together in the same design because they perform different functions. The 74HCT4052D can route analog or digital signals, while the 74HCT00D can implement NAND logic functions.
Are the 74HCT4052D and 74HCT00D direct substitutes for each other?
No. They are not direct substitutes because they have different logic functions, pin counts, and package sizes. Any replacement must be evaluated against the specific circuit requirements and manufacturer datasheets.