VCBU68WMCE30 Equivalent & Substitute Parts

Part Overview

The VCBU68WMCE30 is a Digital Media System-on-Chip (DMSoC) from Texas Instruments' TMS320DM3x DaVinci™ series, designed for embedded multimedia processing applications. This device integrates a 432MHz processor with comprehensive multimedia interfaces including Ethernet, USB, SPI, I2C, and McBSP connectivity. The part carries Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute components is essential for design continuity and long-term product support.

Substiute Parts

VCBU68WMCE30

Texas InstrumentsIn Stock: 776VCBU68WMCE30 Datasheet

Current PartRFQ

TMS320DM365ZCE21

Texas InstrumentsIn Stock: 2261TMS320DM365ZCE21 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VCBU68WMCE30 is determined by the following critical parameters:

• Package compatibility: 338-LFBGA (13x13) form factor
• Interface set: EBI/EMI, Ethernet, I2C, McBSP, SPI, UART, USB
• Memory configuration: 56kB on-chip RAM and 16kB ROM
• Voltage rails: 1.8V/3.3V I/O and core voltage support
• Operating temperature range: 0°C ~ 85°C
• Series family: TMS320DM3x DaVinci™

The TMS320DM365ZCE21 qualifies as a substitute based on identical package, interface set, memory configuration, voltage specifications, and temperature range. Differences in clock rate (216MHz vs. 432MHz) and core voltage (1.20V vs. 1.35V) represent functional variations within the same product family and do not preclude substitution where performance requirements permit.

Parameter Comparison

Engineering Selection Recommendations

The TMS320DM365ZCE21 is the designated substitute for the VCBU68WMCE30. Both devices maintain identical mechanical and electrical compatibility through matching package specifications, interface configurations, and voltage requirements. The substitute part carries Active product status, ensuring continued availability and manufacturing support, whereas the original part is in Last Time Buy phase.

Selection of the TMS320DM365ZCE21 is appropriate for applications where the reduced clock rate (216MHz versus 432MHz) and lower core voltage (1.20V versus 1.35V) align with system performance requirements. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent supply chain and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the TMS320DM365ZCE21 be used as a direct replacement for the VCBU68WMCE30?

A: The TMS320DM365ZCE21 is mechanically and electrically compatible with the VCBU68WMCE30 in terms of package form factor, pinout, interface set, and voltage rails. Substitution is valid where application performance requirements accommodate the lower clock rate of 216MHz.

Q: What are the key differences between these parts?

A: The primary differences are clock rate (432MHz vs. 216MHz) and core voltage (1.35V vs. 1.20V). All other parameters—package, interfaces, memory, I/O voltage, and temperature range—are identical.

Q: Are there any compliance or certification differences?

A: Both parts maintain ROHS3 compliance, identical MSL ratings, and equivalent REACH and ECCN classifications. No compliance barriers exist to substitution.

Q: Does the lower clock rate affect PCB layout or thermal design?

A: The lower clock rate and reduced core voltage of the TMS320DM365ZCE21 typically result in lower power dissipation. Existing thermal and power delivery designs may require validation but generally support this substitution.

Q: What is the availability status of each part?

A: The VCBU68WMCE30 is in Last Time Buy status with limited inventory. The TMS320DM365ZCE21 maintains Active status with higher inventory availability, supporting long-term design continuity.