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74LCX157M
onsemi
IC MULTIPLEXER 4 X 2:1 16SOIC
20336 Pcs New Original In Stock
Multiplexer 4 x 2:1 16-SOIC
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(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (33 Ratings)
74LCX157M
Product Overview
7744645
DiGi Electronics Part Number
74LCX157M-DGManufacturer
onsemi
74LCX157M
Description
IC MULTIPLEXER 4 X 2:1 16SOICInventory
20336 Pcs New Original In Stock
Multiplexer 4 x 2:1 16-SOIC
Quantity
Minimum 1
Minimum 1
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74LCX157M Technical Specifications
Category
Logic, Signal Switches, Multiplexers, Decoders
Packaging
-
Series
74LCX
Product Status
Obsolete
Type
Multiplexer
Circuit
4 x 2:1
Independent Circuits
1
Current - Output High, Low
24mA, 24mA
Voltage Supply Source
Single Supply
Voltage - Supply
2V ~ 3.6V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
74LCX157
Datasheet & Documents
HTML Datasheet
74LCX157M-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-74LCX157M-OS
2832-74LCX157M
74LCX157MFS
ONSONS74LCX157M
74LCX157M-DG
Standard Package
48
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
빠른 배송이 정말 인상적이고 가격도 너무 착해서 재구매 의사가 충분합니다. 추천할 만한 곳이에요.
de desembre 02, 2025
Je félicite leur attention portée à la sécurité de l’emballage, qui préserve la qualité des produits.
de desembre 02, 2025
Ich schätze die günstigen Preise und die schnelle Unterstützung nach dem Kauf sehr.
de desembre 02, 2025
いつも時間通りの配送と完璧なパッケージングに感謝しています。
de desembre 02, 2025
品質と価格の両面で優れているので、リピートしたくなるお店です。
de desembre 02, 2025
長期的に使っていますが、サービスの質は変わらず高いです。
de desembre 02, 2025
Tracking notifications were frequent and detailed, preventing any worries about the shipment.
de desembre 02, 2025
My experience with delivery was excellent—order arrived intact and sooner than I anticipated.
de desembre 02, 2025
Their quick dispatch ensures I never miss a crucial project window.
de desembre 02, 2025
I value their prompt response and thorough support after making a purchase.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the 74LCX157M in new projects given its obsolete status from onsemi?
Using the 74LCX157M in new designs carries significant supply chain risk due to its obsolete status, which means onsemi no longer guarantees long-term availability. Engineers should avoid this device in high-volume or long-lifecycle products. For prototyping or low-volume applications, secure extended inventory (e.g., the 20,300 units available) and plan for obsolescence mitigation early. Evaluate second-source alternatives like the SN74LVC157ADR or 74LVC157AD-Q100J, which offer compatible functionality with active production status and automotive-grade options where needed.
Can the 74LCX157M safely interface with 5V microcontrollers in mixed-signal systems, and what protection is required?
The 74LCX157M is not 5V-tolerant on any pin—its max supply voltage is 3.6V. Connecting it directly to 5V logic outputs (e.g., from older MCUs) risks latch-up or permanent damage. To interface with 5V systems, use level translators on control and data inputs, or scale the system to 3.3V logic. Alternatively, consider replacing the 74LCX157M with a 5V-tolerant 2:1 quad multiplexer like the SN74LVC157ADT, which supports input voltages up to 5.5V while operating at 3.3V, simplifying integration in mixed-voltage designs.
How does the 74LCX157M compare to the SN74LVC157ADR in terms of speed and power for portable designs?
The 74LCX157M has a typical propagation delay of 5ns at 3.3V, while the SN74LVC157ADR offers faster 3.5ns performance with better drive strength (32mA vs. 24mA) and lower dynamic power due to improved CMOS process. For portable or battery-powered applications, the SN74LVC157ADR's superior speed-power trade-off and active production status make it a better choice. The 74LCX157M may still work in legacy systems, but new designs should favor the SN74LVC157ADR or equivalent for reliability and efficiency.
What PCB layout practices are critical to minimize signal integrity issues when using the 74LCX157M in high-noise environments?
When integrating the 74LCX157M in industrial or high-noise applications, place a 0.1µF ceramic bypass capacitor directly between VCC and GND pins, minimizing trace length to reduce inductance. Use ground planes to shield signal lines, and avoid routing sensitive control lines (SEL, enable) near switching nodes. Due to its CMOS nature, unterminated inputs can cause oscillation—tie unused inputs firmly to VCC or GND. Despite its SOIC package providing moderate noise immunity, the obsolete status and moderate speed make it less robust than modern alternatives like the 74LVC157AD-Q100J with enhanced ESD and latch-up protection.
Is the 74LCX157M suitable for automotive applications, and what are the reliability concerns versus qualified replacements?
The 74LCX157M is not AEC-Q100 qualified and is marked obsolete, making it unsuitable for automotive designs requiring long-term reliability. While it operates within -40°C to 85°C, automotive environments demand stricter qualification. Replace the 74LCX157M with the 74LVC157AD-Q100J or SN74LVC157AQDRG4Q1, which are AEC-Q100 Grade 1 qualified, support -40°C to 125°C operation, and offer improved ESD protection. These parts ensure compliance with automotive stress test requirements and reduce field failure risks in safety-critical systems.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
74LCX157M CAD Models
onsemi 74LCX157M PCB symbols & footprints
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