TMS320C32PCM40 Equivalent & Substitute Parts

Part Overview

The TMS320C32PCM40 is a floating-point digital signal processor (DSP) from Texas Instruments' TMS320C3x series, designed for embedded applications requiring real-time signal processing. This device operates at 40MHz with 2.25kB of on-chip RAM and external non-volatile memory support. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, redesigns, and production continuity.

Substiute Parts

TMS320C32PCM40

Texas InstrumentsIn Stock: 2114TMS320C32PCM40 Datasheet

Current PartRFQ

TMS320C6722BRFP200

Texas InstrumentsIn Stock: 2267TMS320C6722BRFP200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TMS320C6722BRFP200 is identified as a manufacturer-recommended substitute for the TMS320C32PCM40. Substitution eligibility is determined by the following criteria:

Substitution-Determining Parameters:

• Base product family alignment (TMS320 series)
• Floating-point DSP architecture
• Surface-mount 144-pin package format
• RoHS3 compliance and REACH unaffected status
• Identical ECCN and HTSUS classifications
• MSL rating compatibility (both rated MSL 4)

The substitute part operates within the same embedded DSP category and maintains package-level compatibility through the 144-pin TQFP format, enabling direct functional replacement in signal processing applications.

Parameter Comparison

Engineering Selection Recommendations

The TMS320C6722BRFP200 is the manufacturer-recommended substitute for the obsolete TMS320C32PCM40. Both devices maintain ROHS3 compliance and identical regulatory classifications (ECCN 3A991A2, HTSUS 8542.31.0001), ensuring compliance continuity in regulated applications.

The substitute part is currently in active production status, providing long-term availability and supply chain stability compared to the obsolete original part. Both devices support surface-mount assembly in 144-pin configurations and carry equivalent moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Why is the TMS320C6722BRFP200 recommended as a substitute for the TMS320C32PCM40?

A: Both devices are Texas Instruments floating-point DSPs within the TMS320 family, share identical 144-pin surface-mount package formats, and maintain equivalent RoHS3 and regulatory compliance. The substitute part is actively manufactured, addressing the obsolescence of the original part.

Q: Are there voltage compatibility considerations when substituting these parts?

A: The substitute part operates at reduced core voltage (1.20V vs. 5.00V) and I/O voltage (3.30V vs. 5.00V). System designs must accommodate these voltage differences through appropriate power supply and signal conditioning modifications.

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

A: The original part uses a 144-BQFP package (28x28mm), while the substitute uses a 144-TQFP with exposed pad (20x20mm). Both are 144-pin surface-mount packages; however, the smaller footprint and exposed pad of the substitute may require PCB layout adjustments.

Q: Does the substitute part provide backward compatibility in terms of memory?

A: The substitute part includes significantly more on-chip RAM (160kB vs. 2.25kB) and integrated ROM (384kB), compared to the original part's external memory architecture. Applications designed for the original part's memory configuration require evaluation for compatibility.

Q: Are both parts suitable for the same operating temperature range?

A: Both parts operate within overlapping temperature ranges (0°C ~ 85°C for the original, 0°C ~ 90°C for the substitute), with the substitute offering a slightly extended upper temperature limit.