Part A
74HCT4052D
東芝電晶體與存儲
- Lifecycle
- Active
- Stock
- 3196 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 74HCT4052D and 74HCT373D,653 are functionally unrelated devices: the 74HCT4052D is a dual 4-channel analog multiplexer/demultiplexer, while the 74HCT373D,653 is an octal D-type transparent latch with 3-state outputs. They differ in logic function, channel count, output type, and pinout, so neither part can directly substitute for the other in an existing design.
Different logic function
Different channel count
Different output type
Different pinout
Parts at a glance
Part B
74HCT373D,653
恩智浦美國股份有限公司。
- Lifecycle
- Active
- Stock
- 8194 件
- Package
- SOIC-20
- Series
- 邏輯-鎖存器
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 | 74HCT373D,653 | Why it matters |
|---|---|---|---|
| Function | Dual 4-channel analog multiplexer/demultiplexer | Octal D-type transparent latch with 3-state outputs | These devices perform fundamentally different logic functions, so they are not functionally interchangeable in a circuit. |
| Logic Family | HCT (high-speed CMOS, TTL-compatible) | HCT (high-speed CMOS, TTL-compatible) | Matching logic family ensures compatible input thresholds and output levels with surrounding TTL/CMOS circuitry. |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Both operate from a standard 5 V rail, so power supply compatibility is maintained. |
| Number of Channels | 2 channels (each 4:1) | 8 channels (octal latch) | Channel count determines how many signals can be routed or stored, directly affecting circuit capacity. |
| Output Type | Analog bidirectional switch (no drive) | 3-state digital latch outputs | Output type dictates whether the device can drive loads or only pass analog signals. |
| Control Inputs | Select (A, B) and inhibit | Latch enable (LE) and output enable (OE) | Control pin functions differ, so the driving logic and timing must be redesigned for substitution. |
| Propagation Delay | Typically ~10 ns at 5 V | Typically ~20 ns at 5 V | Propagation delay affects maximum operating speed and timing margins in synchronous designs. |
| Package | SO16 (SOIC-16) | SO20 (SOIC-20) | Different package sizes and pin counts prevent direct drop-in replacement on the same PCB footprint. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Both support industrial temperature ranges, ensuring reliability in harsh environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HCT4052D | 74HCT373D,653 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | - | 74HCT |
| Part Status | Active | Active |
| Logic Type | - | D-Type Transparent Latch |
| Circuit | - | 1:8 |
| Output Type | - | Tri-State |
| Voltage - Supply | - | 4.5V ~ 5.5V |
| Independent Circuits | - | 1 |
| Delay Time - Propagation | - | 14ns |
| Current - Output High Low | - | 6mA, 6mA |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Switch Circuit | DP4T | - |
| Multiplexer / Demultiplexer Circuit | 4:1 | - |
| Number of Circuits | 2 | - |
| 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 the 74HCT373D,653?
The 74HCT4052D is a dual 4-channel analog multiplexer/demultiplexer, while the 74HCT373D,653 is an octal D-type transparent latch with 3-state outputs. They serve entirely different signal-routing and storage roles in a circuit.
Are the 74HCT4052D and 74HCT373D,653 pin-compatible or package-compatible?
No. The 74HCT4052D is supplied in a SO16 package, and the 74HCT373D,653 is supplied in a SO20 package. They have different pin counts and pinouts, so they are not drop-in replacements for each other.
Can the 74HCT4052D and 74HCT373D,653 operate from the same supply voltage?
Yes. Both devices are HCT-family logic parts specified for a 4.5 V to 5.5 V supply range, with 5 V being the nominal operating voltage.
Does the 74HCT4052D provide latching or storage of digital states like the 74HCT373D,653?
No. The 74HCT4052D is an analog switch/multiplexer and does not latch or store logic states. The 74HCT373D,653 includes eight D-type transparent latches that hold the input data when the latch-enable input is taken low.
What are the key differences in output drive and interface type between these two devices?
The 74HCT373D,653 has standard 3-state digital outputs intended for bus driving, while the 74HCT4052D has bidirectional analog signal paths with low on-resistance and no 3-state bus-drive capability. Their output structures and intended signal domains are fundamentally different.
Can the 74HCT4052D and 74HCT373D,653 be used together in the same 5 V HCT logic system?
Yes. Both are 5 V HCT-family devices, so they can coexist in a 5 V system. However, they must be applied according to their individual functions: the 74HCT4052D for analog multiplexing/demultiplexing and the 74HCT373D,653 for digital latching and bus interfacing.
Do both devices support the same operating temperature range?
Both the 74HCT4052D and 74HCT373D,653 are specified for the standard industrial temperature range of -40 °C to +125 °C, as stated in their respective manufacturer datasheets.