DM368ZCEDZ Equivalent & Substitute Parts

Part Overview

The DM368ZCEDZ is a Digital Media System-on-Chip (DMSoC) from Texas Instruments' TMS320DM3x DaVinci™ series, designed for embedded video and imaging applications. This 338-pin BGA device integrates a 432MHz processor with comprehensive multimedia interfaces including Ethernet, USB, SPI, I2C, and McBSP connectivity. The part is currently in Last Time Buy status, indicating end-of-life transition. Identifying qualified substitute components is essential for design continuity and long-term supply chain planning.

Substiute Parts

DM368ZCEDZ

Texas InstrumentsIn Stock: 876DM368ZCEDZ Datasheet

Current PartRFQ

TMS320DM365ZCE21

Texas InstrumentsIn Stock: 2261TMS320DM365ZCE21 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM368ZCEDZ is determined by strict alignment across the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 338-LFBGA (13x13) package to ensure PCB footprint and mechanical compatibility.

Interface Set: The substitute must provide the complete interface suite: EBI/EMI, Ethernet, I2C, McBSP, SPI, UART, and USB. Functional equivalence in multimedia connectivity is mandatory.

Memory Configuration: On-chip RAM of 56kB and ROM of 16kB must be maintained to preserve firmware and runtime memory requirements.

Voltage Specifications: Core voltage of 1.20V and I/O voltage support for 1.8V and 3.3V are non-negotiable for power delivery and signal integrity.

Compliance & Certification: RoHS3 compliance and MSL rating of 3 (168 Hours) ensure regulatory alignment and moisture handling consistency.

The TMS320DM365ZCE21 qualifies as a direct substitute based on these parameters, with the exception of clock rate and operating temperature range, which represent functional trade-offs acceptable within the DM3x series architecture.

Parameter Comparison

Engineering Selection Recommendations

The TMS320DM365ZCE21 is the qualified substitute for the DM368ZCEDZ within the TMS320DM3x DaVinci™ family. Both devices maintain identical package geometry, memory architecture, voltage specifications, and interface configurations, ensuring direct PCB compatibility and firmware portability.

The primary functional difference is clock rate: the substitute operates at 216MHz versus the main part's 432MHz. This represents a 50% reduction in processing throughput and must be evaluated against application performance requirements. The substitute's operating temperature range is narrowed to 0°C ~ 85°C, eliminating the -40°C lower bound available in the main part.

Both devices carry ROHS3 compliance and identical MSL ratings, confirming regulatory and moisture handling equivalence. The substitute's Active product status provides superior long-term availability compared to the main part's Last Time Buy designation, supporting extended production and supply chain stability.

Selection between these parts depends on thermal environment requirements and processing performance headroom. Applications requiring extended low-temperature operation or maximum processing speed must retain the DM368ZCEDZ. Applications tolerating reduced clock rate and standard industrial temperature ranges benefit from the TMS320DM365ZCE21's active availability.

Frequently Asked Questions (FAQ)

Q: Can the TMS320DM365ZCE21 be used as a direct drop-in replacement for the DM368ZCEDZ?

A: Physical and electrical compatibility is confirmed. Both devices use the 338-LFBGA package, identical core and I/O voltages, and the complete interface set. However, the 216MHz clock rate of the substitute versus 432MHz of the main part requires performance validation. Applications must confirm that reduced processing throughput does not impact real-time video or imaging processing requirements.

Q: What is the impact of the narrowed operating temperature range on the substitute?

A: The TMS320DM365ZCE21 operates from 0°C to 85°C, compared to the main part's -40°C to 85°C range. This eliminates support for extended low-temperature environments. Applications deployed in cold climates or requiring -40°C operation must use the DM368ZCEDZ.

Q: Are firmware and software modifications required when switching to the substitute?

A: The substitute maintains identical memory architecture (56kB RAM, 16kB ROM) and interface configuration. Firmware compatibility depends on application-specific performance assumptions. Code optimized for 432MHz operation may require profiling and adjustment for 216MHz execution.

Q: How does product status affect long-term supply planning?

A: The DM368ZCEDZ is in Last Time Buy status, indicating limited future availability. The TMS320DM365ZCE21 is Active, ensuring continued supply and manufacturing support. New designs should prioritize the substitute for supply chain resilience.

Q: Are there compliance or certification differences between the two parts?

A: Both devices are ROHS3 compliant with identical MSL ratings of 3 (168 Hours). No compliance or moisture handling differences exist.