ASCSM-19.200MHZ-LR-T Equivalent & Substitute Parts

Part Overview

The ASCSM-19.200MHZ-LR-T is a 19.2 MHz MEMS-based XO (Standard) oscillator manufactured by Abracon LLC. This component operates across a wide supply voltage range of 1.7V to 3.6V with CMOS output and Enable/Disable functionality. The oscillator is housed in a compact 4-UFBGA/CSPBGA package measuring 1.79mm × 1.25mm with a maximum seated height of 0.69mm.

The ASCSM-19.200MHZ-LR-T has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this frequency and package specification.

Substiute Parts

ASCSM-19.200MHZ-LR-T

Abracon LLCIn Stock: 1136ASCSM-19.200MHZ-LR-T Datasheet

Current PartRFQ

ASCO-19.200MHZ-L-T3

Abracon LLCIn Stock: 855ASCO-19.200MHZ-L-T3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASCSM-19.200MHZ-LR-T is evaluated based on the following critical parameters:

• Frequency match: 19.2 MHz (exact)
• Output type: CMOS
• Function: Enable/Disable capability
• Operating temperature range: -40°C ~ 85°C (minimum requirement)
• RoHS compliance: ROHS3 Compliant
• Mounting type: Surface Mount

The ASCO-19.200MHZ-L-T3 qualifies as a substitute part. While it employs a crystal-based resonator rather than MEMS technology, it maintains the same 19.2 MHz frequency, CMOS output, Enable/Disable function, and operating temperature range. Both parts are ROHS3 compliant and surface-mount compatible. The primary design consideration is the difference in supply voltage range and frequency stability specifications.

Parameter Comparison

Engineering Selection Recommendations

The ASCO-19.200MHZ-L-T3 is an active product with confirmed availability (823 Pcs in stock), making it suitable for designs requiring component replacement or new production runs. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for most applications.

Design considerations for substitution:

Supply voltage compatibility must be verified. The ASCSM operates across 1.7V to 3.6V, while the ASCO is specified for 3.3V operation. Applications utilizing supply voltages below 3.0V or above 3.6V require circuit redesign or alternative component selection.

Frequency stability tolerance must be evaluated. The ASCSM provides ±25ppm stability, while the ASCO provides ±50ppm. Applications with stringent frequency accuracy requirements may require design modification or alternative components.

Package and footprint differences exist between the UFBGA/CSPBGA (ASCSM) and SMD/No Lead (ASCO) packages. PCB layout and assembly process compatibility must be confirmed before implementation.

Current consumption in disabled mode is specified for the ASCSM (15µA) but not provided for the ASCO. Power management designs dependent on this parameter require verification with the manufacturer.

Frequently Asked Questions (FAQ)

Q: Can the ASCO-19.200MHZ-L-T3 directly replace the ASCSM-19.200MHZ-LR-T in existing designs?

A: Direct replacement requires verification of three factors: supply voltage compatibility (ASCO operates at 3.3V versus ASCSM's 1.7V–3.6V range), frequency stability tolerance (ASCO provides ±50ppm versus ASCSM's ±25ppm), and package footprint compatibility (different package types require PCB redesign).

Q: What is the primary difference between MEMS and crystal-based oscillators?

A: MEMS oscillators use silicon resonators, while crystal oscillators use quartz resonators. Both technologies deliver the same 19.2 MHz frequency and CMOS output in this application. MEMS typically offers lower power consumption and wider voltage ranges; crystal oscillators may provide different frequency stability characteristics.

Q: Are both parts suitable for industrial temperature applications?

A: Both parts operate across the -40°C to 85°C temperature range, meeting industrial specifications. Compliance certifications (ROHS3, REACH) are identical for both components.

Q: What are the package compatibility implications?

A: The ASCSM uses 4-UFBGA/CSPBGA packaging (1.79mm × 1.25mm), while the ASCO uses 4-SMD/No Lead packaging (1.60mm × 1.20mm). These are different package types requiring distinct PCB footprints and assembly processes. Footprint conversion is not interchangeable without PCB redesign.

Q: Is the ASCO-19.200MHZ-L-T3 available for production quantities?

A: The ASCO-19.200MHZ-L-T3 is listed as active product status with 823 pieces in current inventory, indicating availability for production use.

Q: How do the current consumption specifications compare?

A: The ASCSM draws a maximum of 6.5mA during operation and 15µA in disabled mode. The ASCO draws a maximum of 4.5mA during operation, with disabled mode current not specified. Applications requiring precise power budget calculations should confirm the ASCO's disabled mode current with the manufacturer.