Part A
74HC4053D
東芝電晶體與存儲
- Lifecycle
- Active
- Stock
- 1212 件
- Package
- SOIC-16
- Series
- 介面-類比開關、多工器、解復用器
Replacement verdict
Not a drop-in replacement
The 74HC4051D and 74HC4053D are not drop-in replacements for each other. Although both are HC-family analog multiplexers/demultiplexers in the same SO16 package and share similar supply voltage and ON-resistance characteristics, they differ fundamentally in switch configuration and channel count. The 74HC4051D is an 8-channel single-pole multiplexer with one common input/output, while the 74HC4053D contains three independent single-pole double-throw switches with separate control logic. These architectural differences make direct substitution impossible without redesigning the surrounding circuit and control interface.
Different switch configuration
Different channel count
Different control logic
Different signal routing
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74HC4051D | 74HC4053D | Why it matters |
|---|---|---|---|
| Switch Configuration | 8-channel single-pole 8-throw (1-of-8 multiplexer/demultiplexer) | Triple single-pole double-throw (3x SPDT, 2:1 mux/demux) | Determines the fundamental signal routing topology; the two parts are not pin-compatible substitutes for the same function. |
| Number of Channels | 1 channel (8:1) | 3 channels (2:1 each) | Affects how many independent signals can be routed simultaneously in a design. |
| Number of Switches | 8 analog switches | 6 analog switches | Impacts on-resistance loading, leakage, and the total number of selectable paths. |
| Control Inputs (Address/Select Lines) | 3 select inputs (S0, S1, S2) plus enable | 3 select inputs (one per SPDT section) plus enable | Defines the logic interface and number of GPIO lines required to control the device. |
| Package | SO16 (16-pin SOIC) | SO16 (16-pin SOIC) | Same footprint allows board-level interchangeability, but internal function still differs. |
| Supply Voltage Range | 2 V to 10 V (HC family typical) | 2 V to 10 V (HC family typical) | Determines compatibility with 3.3 V and 5 V logic systems and analog signal headroom. |
| On-Resistance (R_ON) | Typically ~80 Ω at 4.5 V (varies with VCC and temperature) | Typically ~80 Ω at 4.5 V (varies with VCC and temperature) | Affects signal attenuation and accuracy when passing analog signals. |
| Propagation Delay | Typically ~10 ns at 5 V | Typically ~10 ns at 5 V | Influences maximum switching speed and timing in multiplexed signal paths. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Ensures reliable operation across industrial and automotive temperature environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC4053D | 74HC4051D |
|---|---|---|
| Part Status | Active | Active |
| Multiplexer / Demultiplexer Circuit | 2:1 | 8:1 |
| Number of Circuits | 3 | 1 |
| On - State Resistance(Max) | 100Ohm | 130Ohm |
| Channel - to - Channel Matching(ΔRon) | 5Ohm (Typ) | 4Ohm |
| Voltage - Supply, Single (V+) | 2V ~ 6V | 2V ~ 6V |
| Switch Time(Ton Toff)(Max) | 38ns, 38ns | 34ns, 32ns |
| -3 dB Bandwidth | 200MHz | - |
| Channel Capacitance(CS(off)CD(off)) | 5pF | 10pF |
| Current - Leakage(IS(off))(Max) | 100nA | 1µA |
| Crosstalk | -50dB @ 1MHz | -50dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the main functional difference between the 74HC4051D and the 74HC4053D?
The 74HC4051D is an 8-channel analog multiplexer/demultiplexer with a single common input/output and eight independent channels, controlled by three binary select inputs. The 74HC4053D contains three separate single-pole double-throw (SPDT) analog switches, each with its own select input, allowing three independent 2:1 multiplexing or demultiplexing functions in one package.
Are the 74HC4051D and 74HC4053D pin-compatible?
No. Both devices are typically offered in a 16-pin SOIC package, but their pin functions differ. The 74HC4051D uses pins for eight channels plus three select inputs and an enable, while the 74HC4053D uses pins for three SPDT switch sections with individual select inputs and a common enable. They cannot be interchanged without circuit redesign.
Can the 74HC4051D and 74HC4053D operate from the same supply voltage range?
Yes. Both are 74HC-series CMOS analog multiplexers/switches and are specified for a wide supply voltage range, typically 2 V to 6 V for the 74HC4051D and 74HC4053D from major manufacturers such as Nexperia and Texas Instruments. Always confirm the exact datasheet limits for the specific manufacturer and package variant.
Which device is better for routing a single signal to one of eight destinations?
The 74HC4051D is the appropriate choice. It provides one common terminal that can be connected to any one of eight independent channels based on the three select inputs, making it a true 8:1 multiplexer/demultiplexer. The 74HC4053D only provides three independent SPDT switches and cannot select one of eight channels with a single common terminal.
Do both devices have break-before-make switching?
Yes. The 74HC4051D and 74HC4053D are designed with break-before-make switching action, which prevents momentary shorting between channels or switch positions during transition. This is a standard characteristic of the 74HC405x analog multiplexer/switch family and should be verified in the specific manufacturer datasheet.
What are the typical on-resistance characteristics of these devices?
Both the 74HC4051D and 74HC4053D exhibit on-resistance that depends on supply voltage, temperature, and input signal level. Typical on-resistance values are in the tens of ohms at 4.5 V supply, with lower values at higher supply voltages. For precise limits, consult the manufacturer datasheet, as values vary between suppliers and test conditions.
Can the 74HC4051D and 74HC4053D be used for bidirectional analog signal routing?
Yes. Both devices are bidirectional analog multiplexers/switches, meaning signals can pass in either direction through the switch. The 74HC4051D can route one common signal to/from any of eight channels, and the 74HC4053D can route each SPDT switch in either direction, provided the analog signal remains within the specified voltage range.
Are the 74HC4051D and 74HC4053D suitable for both analog and digital signal switching?
Yes. Both devices are designed for analog signal switching and multiplexing, but they can also pass digital signals within the supply voltage range. However, for high-speed digital signals, propagation delay, capacitance, and on-resistance should be evaluated against the specific datasheet parameters to ensure signal integrity.