LMC567CN/NOPB Equivalent & Substitute Parts

Part Overview

The LMC567CN/NOPB is a Telecom IC Tone Decoder manufactured by Texas Instruments, housed in an 8-PDIP through-hole package. This interface component functions as a tone decoder for telecommunications applications. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing system support and new designs requiring equivalent functionality.

Substiute Parts

LMC567CN/NOPB

Texas InstrumentsIn Stock: 1094LMC567CN/NOPB Datasheet

Current PartRFQ

LM567CN/NOPB

Texas InstrumentsIn Stock: 1728LM567CN/NOPB Datasheet

MFR RecommendedRFQ

LMC567CMX/NOPB

Texas InstrumentsIn Stock: 55394LMC567CMX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LMC567CN/NOPB is determined by the following critical parameters: function (tone decoder), number of circuits (1), base product number (LMC567), manufacturer (Texas Instruments), and compliance certifications (ROHS3, REACH Unaffected).

Two substitute parts meet these criteria:

LM567CN/NOPB — Active product status with identical functional specification and package form factor (8-DIP through-hole). Voltage supply range differs (4.75V ~ 9V versus 2V ~ 9V), and operating temperature is narrower (0°C ~ 70°C versus -25°C ~ 100°C). Current supply is specified at 12mA with power consumption of 1.1W.

LMC567CMX/NOPB — Active product status with identical functional specification, voltage supply range (2V ~ 9V), and operating temperature range (-25°C ~ 100°C). Package differs to 8-SOIC surface-mount form factor. Mounting type changes from through-hole to surface mount.

Parameter Comparison

Engineering Selection Recommendations

For through-hole mounting applications: LM567CN/NOPB provides direct package compatibility with the obsolete LMC567CN/NOPB. Both use 8-DIP form factor. Selection of LM567CN/NOPB requires verification that the narrower voltage supply range (4.75V ~ 9V) and operating temperature range (0°C ~ 70°C) satisfy application requirements. Higher power consumption (1.1W versus 500mW) must be evaluated for thermal management.

For surface-mount applications or new designs: LMC567CMX/NOPB maintains the original voltage supply range (2V ~ 9V) and operating temperature range (-25°C ~ 100°C), with identical power consumption (500mW). Package change to 8-SOIC requires PCB redesign. Both substitute parts carry active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can LM567CN/NOPB directly replace LMC567CN/NOPB in existing designs?

A: LM567CN/NOPB shares the same 8-DIP package and through-hole mounting type. However, the voltage supply range is restricted to 4.75V ~ 9V (versus 2V ~ 9V for the original), and operating temperature is limited to 0°C ~ 70°C (versus -25°C ~ 100°C). Substitution is valid only if the application operates within these narrower ranges.

Q: What is the primary difference between LM567CN/NOPB and LMC567CMX/NOPB?

A: The primary difference is package and mounting type. LM567CN/NOPB uses 8-DIP through-hole mounting, while LMC567CMX/NOPB uses 8-SOIC surface-mount. LMC567CMX/NOPB retains the original voltage and temperature specifications of the LMC567CN/NOPB.

Q: Are all three parts ROHS3 compliant?

A: Yes. LMC567CN/NOPB, LM567CN/NOPB, and LMC567CMX/NOPB are all ROHS3 compliant with REACH Unaffected status.

Q: Which substitute should I select for a new design?

A: Selection depends on mounting requirements. For through-hole designs, use LM567CN/NOPB if voltage and temperature ranges are acceptable. For surface-mount designs or applications requiring the full original voltage and temperature specifications, use LMC567CMX/NOPB.

Q: What is the inventory status of these parts?

A: LMC567CN/NOPB has 991 pieces in stock (obsolete status). LM567CN/NOPB has 1695 pieces available. LMC567CMX/NOPB has 55300 pieces in stock, indicating strong availability for new orders.