Part A
74HC4053D
Компания Toshiba Semiconductor и Storage
- Lifecycle
- Active
- Stock
- 1212 ПКС
- Package
- SOIC-16
- Series
- Интерфейс - аналоговые выключатели, мультиплексоры, демультиплексоры
Replacement verdict
Not a drop-in replacement
The 74HC4053D and 74HC4051D,652 are not drop-in replacements for each other. Although both are HC-family analog multiplexers/demultiplexers in SO-16 packages with comparable supply voltage and temperature ranges, they differ fundamentally in switch configuration, channel count, and control logic. The 74HC4053D contains three independent single-pole double-throw (SPDT) switches, while the 74HC4051D,652 is a single 8-channel analog multiplexer/demultiplexer. 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 pin function assignment
Parts at a glance
Part B
74HC4051D,652
Компания Nexperia USA Inc.
- Lifecycle
- Active
- Stock
- 4733 ПКС
- Package
- SOIC-16
- Series
- Интерфейс - аналоговые выключатели, мультиплексоры, демультиплексоры
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 | 74HC4051D,652 | Why it matters |
|---|---|---|---|
| Switch Configuration | Triple 2-channel (SPDT) | Single 8-channel (SP8T) | Defines the multiplexer topology; a triple 2:1 switch cannot directly replace an 8:1 multiplexer in signal routing applications. |
| Number of Channels | 3 | 1 | Determines how many independent signal paths can be switched simultaneously. |
| On-Resistance (typ) | 70 Ω at 4.5 V | 80 Ω at 4.5 V | Lower on-resistance reduces signal attenuation and voltage drop across the switch. |
| Supply Voltage Range | 2 V to 10 V | 2 V to 10 V | Both parts operate over the same supply window, allowing use in similar logic-level systems. |
| Propagation Delay (typ) | 9 ns at 4.5 V | 10 ns at 4.5 V | Affects switching speed and timing margins in high-frequency signal paths. |
| Package | SO16 | SO16 | Identical package footprint enables drop-in PCB compatibility without layout changes. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Same temperature range supports use in industrial and automotive environments. |
| Logic Input Threshold | CMOS (Vcc dependent) | CMOS (Vcc dependent) | Both use CMOS-compatible control inputs, but channel count differences affect control line requirements. |
| Control Inputs Required | 3 select lines | 3 select lines | Same number of control lines, but they map to different switching functions, affecting firmware and logic design. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC4053D | 74HC4051D,652 |
|---|---|---|
| Supplier | - | Nexperia USA Inc. |
| Part Status | Active | Obsolete |
| Multiplexer / Demultiplexer Circuit | 2:1 | 8:1 |
| Number of Circuits | 3 | 1 |
| On - State Resistance(Max) | 100Ohm | 120Ohm |
| Channel - to - Channel Matching(ΔRon) | 5Ohm (Typ) | 6Ohm |
| Voltage - Supply, Single (V+) | 2V ~ 6V | 2V ~ 10V |
| Voltage - Supply, Dual (V±) | - | ±1.5V ~ 5V |
| Switch Time(Ton Toff)(Max) | 38ns, 38ns | 51ns, 42ns |
| -3 dB Bandwidth | 200MHz | 180MHz |
| Channel Capacitance(CS(off)CD(off)) | 5pF | 3.5pF |
| Current - Leakage(IS(off))(Max) | 100nA | 400nA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Crosstalk | -50dB @ 1MHz | - |
Frequently asked questions
What is the main functional difference between the 74HC4053D and the 74HC4051D,652?
The 74HC4053D is a triple 2-channel analog multiplexer/demultiplexer, while the 74HC4051D,652 is a single 8-channel analog multiplexer/demultiplexer. The 74HC4053D contains three independent switches, each with two inputs/outputs and a common terminal, whereas the 74HC4051D,652 routes one of eight channels to a single common terminal.
Are the 74HC4053D and 74HC4051D,652 pin-compatible?
No. The 74HC4053D is typically supplied in a 16-pin SOIC package, while the 74HC4051D,652 is supplied in a 16-pin SOIC package as well, but their pin functions differ. The 74HC4053D uses pins for three switch control inputs and multiple independent channels, whereas the 74HC4051D,652 uses three binary address inputs (S0, S1, S2) and one enable input to select one of eight channels. Therefore, they are not pin-to-pin compatible despite similar package sizes.
Can the 74HC4053D directly replace the 74HC4051D,652 in an existing design?
No. The two devices have different channel configurations, control logic, and pin assignments. The 74HC4053D provides three independent SPDT switches, while the 74HC4051D,652 provides one 8-to-1 multiplexer/demultiplexer. A direct replacement would require redesigning the circuit to accommodate the different signal routing and control interface.
What are the typical supply voltage ranges for the 74HC4053D and 74HC4051D,652?
Both devices are part of the 74HC series and typically operate over a supply voltage range of 2 V to 6 V. However, for analog signal switching, the analog input/output voltage range is typically limited to the supply voltage rails (VCC and GND). Always verify the exact limits in the manufacturer datasheet for the specific part number and package.
What are the typical on-resistance characteristics of these multiplexers?
The 74HC4053D and 74HC4051D,652 exhibit on-resistance (RON) that depends on supply voltage, temperature, and analog input voltage. At a 4.5 V supply, typical RON is in the range of tens of ohms, and it increases as the supply voltage decreases. For precise values, consult the manufacturer datasheet, as RON varies between the two devices and across different test conditions.
Which device is better for routing differential signals?
The 74HC4053D is more suitable for differential signal routing because it contains three independent SPDT switches that can be used in pairs to route differential pairs. The 74HC4051D,652 is an 8-channel single-ended multiplexer and does not provide matched pairs of switches for differential signal paths.
Do both devices support bidirectional analog signal switching?
Yes. Both the 74HC4053D and the 74HC4051D,652 are bidirectional analog multiplexers/demultiplexers. They can pass analog signals in either direction, provided the signal voltage remains within the specified analog input/output voltage range relative to the supply rails.
What are the control input logic thresholds for these devices?
Both devices are CMOS logic compatible and their control inputs (switch select or address inputs) are typically specified with high-level input voltage (VIH) and low-level input voltage (VIL) thresholds that scale with the supply voltage. For a 4.5 V supply, VIH is typically 3.15 V minimum and VIL is typically 1.35 V maximum, but exact values must be confirmed from the manufacturer datasheet for each part number.