DSC1001AI1-020.0000 MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The DSC1001AI1-020.0000 is a 20 MHz MEMS-based crystal oscillator manufactured by Microchip Technology. This component operates as a standard XO (crystal oscillator) with CMOS output, supporting supply voltages from 1.8V to 3.3V and featuring standby power-down functionality. The device is actively produced and widely used in applications requiring stable frequency generation with low power consumption. Substitute parts may be required due to inventory constraints, packaging preferences, or specific application requirements such as extended operating temperature ranges or modified supply current specifications.

Substiute Parts

DSC1001AI1-020.0000

Microchip TechnologyIn Stock: 923DSC1001AI1-020.0000 Datasheet

Current PartRFQ

DSC1001AL1-020.0000T

Microchip TechnologyIn Stock: 1177DSC1001AL1-020.0000T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DSC1001AI1-020.0000 is determined by strict alignment of the following critical parameters:

• Frequency: Must be exactly 20 MHz
• Base Resonator: Must be MEMS technology
• Output Type: Must be CMOS
• Supply Voltage Range: Must support 1.8V ~ 3.3V
• Package / Case: Must be 4-VDFN Exposed Pad
• Physical Dimensions: Must match 7.00mm x 5.00mm footprint and 0.90mm maximum height
• Function: Must include Standby (Power Down) capability
• Frequency Stability: Must maintain ±50ppm specification
• Ratings: Must maintain AEC-Q100 compliance

The DSC1001AL1-020.0000T qualifies as a direct substitute based on identical alignment across all critical parameters. Differences in operating temperature range, maximum supply current, and packaging format (Tape & Reel vs. standard) do not affect functional interchangeability in applications where the substitute's extended specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The DSC1001AL1-020.0000T is a qualified substitute for the DSC1001AI1-020.0000 based on the following engineering criteria:

• Both components maintain Active product status with full manufacturer support
• Both comply with AEC-Q100 automotive-grade reliability standards
• Both achieve ROHS3 compliance and carry unlimited moisture sensitivity rating
• Electrical specifications are functionally equivalent across all critical parameters
• Physical footprint and package dimensions are identical, ensuring PCB compatibility
• The substitute's extended operating temperature range (-40°C to 105°C versus -40°C to 85°C) provides additional thermal margin without introducing incompatibility
• Maximum supply current difference (6.5mA versus 6.3mA) is within acceptable tolerance for power budget calculations

Selection between these parts should be based on packaging format requirements (Tape & Reel versus standard packaging) and inventory availability rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can DSC1001AL1-020.0000T be used as a direct replacement for DSC1001AI1-020.0000 in existing designs?

A: Yes. Both parts share identical electrical specifications, frequency output, supply voltage range, CMOS output characteristics, and physical package dimensions. The primary difference is packaging format (Tape & Reel for the substitute). No circuit modifications are required.

Q: What is the significance of the different part number suffix (AI1 versus AL1)?

A: The suffix designates internal manufacturing or qualification variants within the DSC1001 series. Both variants meet identical electrical and mechanical specifications for the 20 MHz CMOS oscillator function.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: No. The DSC1001AL1-020.0000T's extended upper temperature limit (-40°C to 105°C) is a superset of the original part's range (-40°C to 85°C). Applications operating within the original temperature range experience no compatibility issues.

Q: Are there any supply current considerations when substituting?

A: The substitute's maximum supply current is 6.5mA compared to 6.3mA for the original part. This 0.2mA difference is negligible for most applications. Power budget calculations should account for this minor increase.

Q: What packaging format differences exist between these parts?

A: The DSC1001AI1-020.0000 is supplied in standard packaging, while the DSC1001AL1-020.0000T is supplied in Tape & Reel (TR) format. Both contain identical die and perform identically. Selection depends on assembly process requirements and volume needs.

Q: Are both parts suitable for automotive applications?

A: Yes. Both components carry AEC-Q100 ratings, indicating qualification for automotive-grade reliability and environmental stress testing requirements.