CPPC1L-BR-12.8PD Equivalent & Substitute Parts

Part Overview

The CPPC1L-BR-12.8PD is a 12.8 MHz XO (Standard) CMOS oscillator manufactured by Cardinal Components Inc., designed for applications requiring a 3.3V standby power-down function in a 14-DIP through-hole package. This part operates across a 0°C to 70°C temperature range with ±25ppm frequency stability and a maximum supply current of 25mA. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

CPPC1L-BR-12.8PD

Cardinal Components Inc.In Stock: 1223CPPC1L-BR-12.8PD Datasheet

Current PartRFQ

MXO45HS-3C-12M800000

CTS-Frequency ControlsIn Stock: 1086MXO45HS-3C-12M800000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPPC1L-BR-12.8PD is determined by the following critical parameters:

• Frequency Match: 12.8 MHz (exact match required)
• Output Logic Family: CMOS or compatible logic levels
• Standby Function: Power Down capability
• Supply Voltage Compatibility: 3.3V operation or dual-voltage support
• Frequency Stability: ±25ppm or better
• Mounting Type: Through Hole configuration
• Temperature Range: Minimum 0°C ~ 70°C coverage

The MXO45HS-3C-12M800000 meets the core frequency and standby function requirements but introduces differences in output logic family (HCMOS/TTL vs. CMOS), supply voltage (5V vs. 3.3V), and package form factor (8-DIP vs. 14-DIP). These differences require circuit-level evaluation for compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MXO45HS-3C-12M800000 is an active product with current manufacturing support and ROHS3 compliance, providing supply chain continuity for the obsolete CPPC1L-BR-12.8PD. However, direct substitution requires evaluation of the following differences:

Supply Voltage: The substitute operates at 5V versus the original 3.3V specification. Circuit designs dependent on 3.3V operation require voltage regulation or level-shifting circuitry.

Output Logic Family: HCMOS/TTL output differs from CMOS. Logic threshold levels and drive characteristics must be verified against receiving circuit input specifications.

Frequency Stability: The substitute provides ±50ppm stability versus ±25ppm for the original. Applications with tight frequency tolerance requirements must assess impact.

Package Form Factor: The 8-DIP half-size metal can differs from the 14-DIP module. PCB layout modifications are required.

Temperature Range: The substitute extends to -20°C, providing broader environmental coverage than the original 0°C minimum.

Frequently Asked Questions (FAQ)

Q: Can the MXO45HS-3C-12M800000 directly replace the CPPC1L-BR-12.8PD without circuit modifications?

A: No. The 5V supply voltage requirement and HCMOS/TTL output logic differ from the original 3.3V CMOS specification. Circuit-level compatibility assessment is required before substitution.

Q: What is the primary reason for seeking a substitute for the CPPC1L-BR-12.8PD?

A: The CPPC1L-BR-12.8PD is obsolete. The MXO45HS-3C-12M800000 is an active product with current manufacturing availability and ROHS3 compliance.

Q: Are the frequency specifications compatible between these parts?

A: Both parts operate at 12.8 MHz with power-down standby function. However, frequency stability differs: ±25ppm (original) versus ±50ppm (substitute). Applications requiring tighter stability must evaluate this difference.

Q: What package considerations apply to substitution?

A: The original uses a 14-DIP module with 4 leads; the substitute uses an 8-DIP half-size metal can with 4 leads. PCB footprint and layout modifications are necessary.

Q: Does the substitute support the same operating temperature range?

A: The substitute extends the lower temperature limit to -20°C compared to the original 0°C minimum, providing broader environmental coverage. Both support 70°C maximum operation.