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74HC4051D,652 Equivalent & Substitute Parts
Part Overview
The 74HC4051D,652 is an 8:1 analog multiplexer/demultiplexer interface IC manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This single-circuit switch device features 120Ohm on-state resistance and operates across 2V to 10V single supply or ±1.5V to 5V dual supply configurations. The part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer/Demultiplexer Configuration | 8:1 |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 120Ohm |
| Channel-to-Channel Matching (ΔRon) | 6Ohm |
| Voltage - Supply, Single (V+) | 2V ~ 10V |
| Voltage - Supply, Dual (V±) | ±1.5V ~ 5V |
| Switch Time (Ton, Toff) (Max) | 51ns, 42ns |
| -3dB Bandwidth | 180MHz |
| Channel Capacitance (CS(off), CD(off)) | 4.6pF |
| Current - Leakage (IS(off)) (Max) | 400nA |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 74HC4051D,652 is determined by the following critical parameters:
Primary Substitution Criteria:
- Multiplexer/Demultiplexer configuration must be 8:1
- Single circuit topology (1 circuit)
- Surface mount package with 16-pin SOIC footprint (0.154" width, 3.90mm)
- Operating temperature range must encompass or exceed -40°C to 125°C
- ROHS3 compliance and MSL 1 rating
Secondary Compatibility Parameters:
- On-state resistance tolerance (120Ohm baseline; higher values acceptable with design margin verification)
- Supply voltage ranges (minimum 2V single supply or ±1.5V dual supply support)
- Switch timing and bandwidth characteristics (51ns/42ns switching; 180MHz bandwidth baseline)
- Leakage current specifications (400nA maximum)
Substitute parts are grouped into two categories based on electrical performance alignment:
Category A - Direct Electrical Equivalents (120-130Ohm Ron): 74HC4051D,653, CD74HC4051M, CD74HC4051M96, CD74HC4051M96G3
Category B - Functional Equivalents with Higher Ron (160-240Ohm): BU4051BCF-E2, CD4051BM, CD4051BM96, CD4051BM96G3, CD4051BMG4, CD4051BMT
Parameter Comparison
| Part Number | Manufacturer | Ron (Max) | ΔRon | V+ Range | V± Range | Ton/Toff | BW (-3dB) | Leakage (Max) | Temp Range | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC4051D,652 | Nexperia USA Inc. | 120Ohm | 6Ohm | 2V~10V | ±1.5V~5V | 51ns, 42ns | 180MHz | 400nA | -40°C~125°C | 16-SOIC (3.90mm) | Obsolete |
| 74HC4051D,653 | Nexperia USA Inc. | 120Ohm | 6Ohm | 2V~10V | ±1.5V~5V | 51ns, 42ns | 180MHz | 400nA | -40°C~125°C | 16-SOIC (3.90mm) | Active |
| CD74HC4051M | Texas Instruments | 130Ohm | 5Ohm | 2V~6V | ±1V~5V | — | 180MHz | 400nA | -55°C~125°C | 16-SOIC (3.90mm) | Last Time Buy |
| CD74HC4051M96 | Texas Instruments | 130Ohm | 5Ohm | 2V~6V | ±1V~5V | — | 180MHz | 400nA | -55°C~125°C | 16-SOIC (3.90mm) | Active |
| CD74HC4051M96G3 | Texas Instruments | 130Ohm | 5Ohm | 2V~6V | ±1V~5V | — | 180MHz | 400nA | -55°C~125°C | 16-SOIC (3.90mm) | Last Time Buy |
| BU4051BCF-E2 | Rohm Semiconductor | 160Ohm | — | 3V~18V | — | — | — | 300nA | -40°C~85°C | 16-SOIC (4.40mm) | Active |
| CD4051BM | Texas Instruments | 240Ohm | 5Ohm | 3V~20V | ±2.5V~9V | — | 20MHz | 100nA | -55°C~125°C | 16-SOIC (3.90mm) | Last Time Buy |
| CD4051BM96 | Texas Instruments | 240Ohm | 5Ohm | 3V~20V | ±2.5V~9V | — | 20MHz | 100nA | -55°C~125°C | 16-SOIC (3.90mm) | Active |
| CD4051BM96G3 | Texas Instruments | 240Ohm | 5Ohm | 3V~20V | ±2.5V~9V | — | 20MHz | 100nA | -55°C~125°C | 16-SOIC (3.90mm) | Last Time Buy |
| CD4051BMG4 | Texas Instruments | 240Ohm | 5Ohm | 3V~20V | ±2.5V~9V | — | 20MHz | 100nA | -55°C~125°C | 16-SOIC (3.90mm) | Obsolete |
| CD4051BMT | Texas Instruments | 240Ohm | 5Ohm | 3V~20V | ±2.5V~9V | — | 20MHz | 100nA | -55°C~125°C | 16-SOIC (3.90mm) | Last Time Buy |
Engineering Selection Recommendations
Preferred Primary Substitute: 74HC4051D,653 (Nexperia USA Inc.) is the direct equivalent with identical electrical specifications and Active product status. This part provides seamless design compatibility with zero parameter deviation and ensures long-term availability.
Secondary Substitutes - High-Performance Tier: CD74HC4051M96 (Texas Instruments) offers Active status with equivalent 130Ohm on-state resistance and 180MHz bandwidth. The extended temperature range (-55°C to 125°C) provides additional margin for demanding applications. This part is suitable for designs requiring long-term supply assurance.
Functional Substitutes - Extended Supply Range: CD4051BM96 (Texas Instruments) provides Active status with higher on-state resistance (240Ohm) and extended supply voltage range (3V to 20V single supply). This part is applicable where the higher Ron specification does not violate circuit impedance requirements and where the reduced bandwidth (20MHz) is acceptable.
Compatibility Constraints: BU4051BCF-E2 (Rohm Semiconductor) features a wider SOIC package (4.40mm vs. 3.90mm) and reduced operating temperature maximum (85°C vs. 125°C). This part is suitable only for applications with relaxed thermal requirements and PCB layout accommodating the larger footprint.
All recommended substitutes maintain ROHS3 compliance and MSL 1 rating consistent with the original part.
Frequently Asked Questions (FAQ)
Q: Can 74HC4051D,653 be used as a direct replacement for 74HC4051D,652? A: Yes. Both parts share identical electrical specifications, package footprint, and functional characteristics. The primary difference is product status: 74HC4051D,653 is Active while 74HC4051D,652 is Obsolete. 74HC4051D,653 is the recommended direct substitute.
Q: What is the impact of higher on-state resistance in CD4051BM96 compared to the original part? A: CD4051BM96 specifies 240Ohm maximum Ron versus 120Ohm for 74HC4051D,652. This doubles the channel impedance, affecting signal attenuation and bandwidth performance. Substitution is valid only when circuit design margins accommodate the higher impedance without exceeding signal integrity requirements.
Q: Are there package footprint differences between substitute parts? A: Most substitutes use the standard 16-SOIC (0.154", 3.90mm width) package matching the original part. BU4051BCF-E2 uses a wider 16-SOIC variant (0.173", 4.40mm width), requiring PCB layout verification before substitution.
Q: Which substitute offers the longest product lifecycle? A: CD74HC4051M96 (Texas Instruments) carries Active status, indicating current production and extended availability. This part is recommended for new designs requiring maximum supply continuity.
Q: Can CD4051BM96 operate at the original part's minimum supply voltage of 2V? A: No. CD4051BM96 requires minimum 3V single supply operation, compared to 2V for 74HC4051D,652. Designs operating below 3V must use 74HC4051D,653 or CD74HC4051M96 variants.
Q: What is the significance of bandwidth differences between 180MHz and 20MHz options? A: The 180MHz bandwidth (74HC4051D,652, CD74HC4051M variants) supports high-frequency signal switching and low-distortion analog multiplexing. The 20MHz bandwidth (CD4051BM variants) is suitable for audio-frequency and lower-speed applications. Bandwidth selection depends on signal frequency content requirements.
Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, consistent with the original 74HC4051D,652 specification.
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