Part A
74HC153D
도시바 반도체 및 스토리지
- Lifecycle
- Active
- Stock
- 5590 PCS
- Package
- SOIC-20
- Series
- 논리 - 신호 스위치, 멀티플렉서, 디코더
Replacement verdict
Not a drop-in replacement
The 74HC153D and 74HC154D,652 are not functionally interchangeable despite sharing the same 74HC CMOS logic family and 16-pin SOIC footprint. The 74HC153D is a dual 4-to-1 multiplexer with two independent data selectors, while the 74HC154D,652 is a 4-to-16 line decoder/demultiplexer with a single inverting output set. Their logic functions, input/output configurations, and channel counts are fundamentally different, so neither device can directly substitute for the other in an existing design without significant circuit redesign.
Different logic function
Different channel count
Different output type
Different pinout assignment
Parts at a glance
Part B
74HC154D,652
은지포미국주식회사
- Lifecycle
- Active
- Stock
- 2528 PCS
- Package
- SOIC-24
- Series
- 논리 - 신호 스위치, 멀티플렉서, 디코더
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 74HC153D | 74HC154D,652 | Why it matters |
|---|---|---|---|
| Function | Dual 4-input multiplexer | 4-to-16 line decoder/demultiplexer | These devices perform fundamentally different logic functions, so they are not functionally interchangeable in a circuit. |
| Logic Type | Multiplexer | Decoder/Demultiplexer | The logic type determines the signal routing behavior and the role the IC plays in a design. |
| Number of Circuits | 2 | 1 | The number of independent circuit blocks affects how many signals can be processed per package. |
| Number of Inputs per Circuit | 4 | 4 | Input count per circuit defines the selection depth and the addressing capability of the device. |
| Number of Outputs | 2 | 16 | Output count determines how many loads or destinations the device can drive simultaneously. |
| Supply Voltage Range | 2 V to 6 V | 2 V to 6 V | The supply voltage range must match the system rail to ensure reliable logic-level operation. |
| Propagation Delay | Approximately 14 ns at 5 V | Approximately 20 ns at 5 V | Propagation delay affects timing margins and maximum operating frequency in synchronous designs. |
| Output Current | ±4 mA | ±4 mA | Output current capability determines the fan-out and whether the device can directly drive LEDs or other loads. |
| Package Type | SOIC-16 | SOIC-24 | Package type and pin count affect PCB footprint, routing, and mechanical compatibility. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | The operating temperature range must cover the application environment for reliable performance. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 74HC153D | 74HC154D,652 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | 74HC | 74HC |
| Part Status | Active | Active |
| Type | Multiplexer | Decoder/Demultiplexer |
| Circuit | 2 x 4:1 | 1 x 4:16 |
| Independent Circuits | 2 | 1 |
| Current - Output High Low | 5.2mA, 5.2mA | 5.2mA, 5.2mA |
| Voltage Supply Source | Single Supply | Single Supply |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary functional differences between the 74HC153D and the 74HC154D,652?
The 74HC153D is a dual 4-input multiplexer that selects one of four data inputs per section based on two select lines, providing two independent 1-of-4 multiplexing channels. The 74HC154D,652 is a 4-to-16 line decoder/demultiplexer that decodes a 4-bit binary address into one of sixteen mutually exclusive active-LOW outputs. They serve different logic functions and are not functionally equivalent.
Are the 74HC153D and 74HC154D,652 pin-compatible?
No. The 74HC153D is typically supplied in a 16-pin SOIC package, while the 74HC154D,652 is supplied in a 24-pin SOIC package. The pin counts, pin assignments, and package footprints differ, so they cannot be interchanged on the same PCB land pattern.
Can the 74HC153D be used to replace the 74HC154D,652 in an existing design?
No. The 74HC153D cannot directly replace the 74HC154D,652 because their logic functions, input/output configurations, and pinouts are different. The 74HC154D,652 provides 16 decoded outputs from a 4-bit input, whereas the 74HC153D provides two multiplexed outputs from two sets of four data inputs. A redesign would be required.
What are the supply voltage and logic family specifications for both devices?
Both the 74HC153D and 74HC154D,652 are members of the 74HC high-speed CMOS logic family. They are specified for operation over a supply voltage range of 2.0 V to 6.0 V, with typical characteristics at 5.0 V. Both devices are compatible with standard CMOS and TTL logic levels when operated within the recommended supply range.
What is the output drive capability of the 74HC153D compared to the 74HC154D,652?
Both devices are standard 74HC-series logic ICs and typically provide symmetrical output drive of ±4 mA at 5 V supply voltage. The 74HC153D has two outputs, while the 74HC154D,652 has sixteen outputs. The per-output drive current specification is essentially the same for both devices under identical supply and temperature conditions.
What are the typical propagation delays for the 74HC153D and 74HC154D,652?
At a 5 V supply and 25 °C, the 74HC153D typically exhibits a propagation delay from data input to output of approximately 12 ns to 20 ns, depending on the specific path and load. The 74HC154D,652 typically exhibits a propagation delay from address input to output of approximately 15 ns to 25 ns under similar conditions. Exact values should be verified from the respective manufacturer datasheets.
Which device is better suited for expanding I/O lines in a microcontroller system?
The 74HC154D,652 is generally used for address decoding or output expansion, converting a 4-bit binary code into 16 individual output lines. The 74HC153D is used for data selection, routing one of four inputs to a single output per section. The choice depends on whether the application requires decoding (74HC154D,652) or multiplexing (74HC153D).
Do both devices support operation over the industrial temperature range?
Yes. Both the 74HC153D and 74HC154D,652 are typically specified for operation over the industrial temperature range of −40 °C to +125 °C, as is standard for the 74HC logic family. Designers should confirm the exact temperature grade from the specific manufacturer datasheet for the ordered part number.