74LVC161D,118 Binary Counter IC - Equivalent & Substitute Parts

Part Overview

The 74LVC161D,118 is a 4-bit binary counter IC manufactured by Nexperia USA Inc., designed for synchronous counting applications with positive edge triggering. This surface-mount logic component operates across a wide voltage range of 1.2 V to 3.6 V and supports count rates up to 150 MHz. The device is actively produced and fully compliant with RoHS3 and REACH regulations, making it suitable for modern industrial and consumer electronics applications. Substitute parts are identified to provide design flexibility when the primary part is unavailable or when alternative supply chains are required.

Substiute Parts

74LVC161D,118

Nexperia USA Inc.In Stock: 329874LVC161D,118 Datasheet

Current PartRFQ

SN74LV161ADR

Texas InstrumentsIn Stock: 2261SN74LV161ADR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC161D,118 is determined by the following critical parameters:

• Logic Function: Binary counter with 4-bit capacity, single element, up-counting direction
• Trigger Mechanism: Positive edge triggering with asynchronous reset and synchronous timing
• Package Compatibility: 16-SOIC surface-mount package with 0.154" width (3.90mm)
• Electrical Characteristics: Supply voltage range, count rate capability, and operating temperature range
• Regulatory Compliance: RoHS3 and REACH compliance status

The SN74LV161ADR from Texas Instruments meets the core functional requirements (4-bit binary counter, positive edge trigger, asynchronous reset, synchronous timing) and shares the identical 16-SOIC package footprint. However, differences in voltage supply range, maximum count rate, and operating temperature must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 74LVC161D,118 and SN74LV161ADR are active products with full RoHS3 and REACH compliance. Selection between these parts depends on application-specific electrical requirements:

The 74LVC161D,118 operates at lower supply voltages (1.2 V minimum) and supports higher count rates (150 MHz), making it suitable for low-power and high-frequency applications. The SN74LV161ADR operates at higher supply voltages (2 V minimum) with a maximum count rate of 95 MHz and a reduced upper operating temperature limit of 85°C compared to 125°C for the Nexperia device.

Both devices share identical package geometry and pinout, enabling direct PCB-level substitution when electrical specifications align with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN74LV161ADR directly replace the 74LVC161D,118 on a PCB?

A: Yes, both devices use the 16-SOIC package with identical 0.154" width and pin configuration. Physical substitution is possible without PCB redesign. However, verify that the circuit's supply voltage range and maximum operating frequency are compatible with the SN74LV161ADR specifications.

Q: What are the key differences between these two parts?

A: The primary differences are supply voltage range (74LVC161D,118: 1.2–3.6 V vs. SN74LV161ADR: 2–5.5 V), maximum count rate (150 MHz vs. 95 MHz), and upper operating temperature (125°C vs. 85°C). The 74LVC161D,118 is optimized for low-voltage, high-speed applications, while the SN74LV161ADR supports higher supply voltages.

Q: Are both parts RoHS3 compliant?

A: Yes, both the 74LVC161D,118 and SN74LV161ADR are ROHS3 compliant with MSL rating of 1 (Unlimited), suitable for standard manufacturing and storage conditions.

Q: Which part should I select for a 3.3 V system operating at 120 MHz?

A: The 74LVC161D,118 is the appropriate choice, as it operates within the 1.2–3.6 V range and supports the required 120 MHz count rate. The SN74LV161ADR would also function at 3.3 V but is limited to 95 MHz maximum count rate.

Q: What is the moisture sensitivity level for these parts?

A: Both devices have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.