MCP47CVB28-20E/ST Equivalent & Substitute Parts

Part Overview

The MCP47CVB28-20E/ST is a 12-bit digital-to-analog converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications. This integrated circuit features 8 independent D/A converters with voltage-buffered outputs and I2C interface compatibility. The device operates across a wide supply voltage range of 1.8V to 5.5V for both analog and digital supplies, making it suitable for diverse embedded systems and industrial applications. The part is currently in active production status with 896 units available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same product family.

Substiute Parts

MCP47CVB28-20E/ST

Microchip TechnologyIn Stock: 953MCP47CVB28-20E/ST Datasheet

Current PartRFQ

MCP47CMB28-20E/ST

Microchip TechnologyIn Stock: 1287MCP47CMB28-20E/ST Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP47CVB28-20E/ST are identified based on strict electrical and mechanical parameter equivalence within the Microchip MCP47 series. The substitution criteria are defined by the following key parameters:

• Resolution and Converter Count: 12-bit resolution with 8 independent D/A converters
• Output Configuration: Voltage-buffered output type with no differential output capability
• Interface Protocol: I2C data interface for digital communication
• Supply Voltage Range: Dual supply voltage specifications (1.8V ~ 5.5V for both analog and digital)
• Accuracy Specifications: INL/DNL maximum of ±1 LSB
• Settling Time: 16µs typical settling time
• Package Specification: 20-TSSOP surface mount package with 0.173" width (4.40mm)
• Environmental Compliance: ROHS3 compliance and MSL 3 rating

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Variations in manufacturer part number suffix indicate different temperature grades, packaging formats, or lead-free processing, but do not affect functional equivalence when core electrical specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

The MCP47CMB28-20E/ST is a direct parametric equivalent to the MCP47CVB28-20E/ST. Both devices are manufactured by Microchip Technology and maintain identical electrical specifications, package configuration, and environmental compliance certifications. The difference in part number suffix reflects manufacturing or temperature grade variations that do not impact functional performance in applications requiring 12-bit, 8-channel voltage-output digital-to-analog conversion.

Both parts are active products with current production status. The MCP47CMB28-20E/ST currently maintains higher inventory availability at 1236 units compared to 896 units for the MCP47CVB28-20E/ST. Both devices carry ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements for industrial and commercial applications.

Selection between these equivalent parts should be based on availability, lead time, and supply chain requirements rather than technical performance considerations, as all electrical and mechanical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Are the MCP47CVB28-20E/ST and MCP47CMB28-20E/ST pin-compatible?

A: Yes. Both devices use the identical 20-TSSOP package with 0.173" width (4.40mm). Pin configuration, signal assignments, and PCB footprint requirements are identical, enabling direct substitution without circuit board redesign.

Q: Can I use the MCP47CMB28-20E/ST as a replacement in an existing design using the MCP47CVB28-20E/ST?

A: Yes. The MCP47CMB28-20E/ST is a parametric equivalent with identical electrical specifications, supply voltage ranges, I2C interface protocol, and output characteristics. No firmware, software, or circuit modifications are required.

Q: What is the difference between the "V" and "M" designations in the part numbers?

A: The part number suffix variations (V versus M) indicate manufacturing or temperature grade classifications within the Microchip MCP47 product family. These designations do not affect the core electrical performance or functional capabilities of the 12-bit, 8-channel DAC.

Q: Are both parts suitable for the full -40°C to 125°C operating temperature range?

A: Yes. Both the MCP47CVB28-20E/ST and MCP47CMB28-20E/ST are specified for operation across the -40°C to 125°C temperature range with identical performance characteristics throughout this range.

Q: Do both parts require the same PCB layout and decoupling capacitor specifications?

A: Yes. Since both devices share identical package geometry, pin configuration, and electrical specifications, PCB layout requirements, decoupling capacitor values, and power distribution schemes are identical.

Q: What is the Moisture Sensitivity Level (MSL) for both parts, and what does it mean?

A: Both parts carry an MSL rating of 3 with a 168-hour floor life. This indicates the maximum time the component can be exposed to ambient conditions (typically 30°C, 60% relative humidity) after moisture absorption before soldering. Proper storage in dry conditions or desiccant packaging is required to maintain this specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the MCP47CVB28-20E/ST and MCP47CMB28-20E/ST are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components in industrial and commercial applications.