73M1822-IM/F Equivalent & Substitute Parts

Part Overview

The 73M1822-IM/F is a specialized interface IC manufactured by Analog Devices Inc./Maxim Integrated, designed for fax, modems, and pagers applications. This component operates as part of the MicroDAA™ series and is packaged in a 42-QFN (8x8) form factor with exposed pad. The product is currently obsolete, making identification of suitable substitute components essential for legacy system maintenance and redesign efforts.

Substiute Parts

73M1822-IM/F

Analog Devices Inc./Maxim IntegratedIn Stock: 294573M1822-IM/F Datasheet

Current PartRFQ

TUSB214QRWBRQ1

Texas InstrumentsIn Stock: 30162TUSB214QRWBRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 73M1822-IM/F is determined by the following critical parameters:

• Voltage Supply Range: 3V ~ 3.6V compatibility
• Interface Category: Specialized interface IC classification
• Mounting Type: Surface mount technology
• RoHS Compliance: ROHS3 Compliant status
• Package Form Factor: QFN-based surface mount packages

The identified substitute, TUSB214QRWBRQ1, meets the core electrical requirements (3V ~ 3.6V supply voltage) and compliance standards (ROHS3 Compliant). However, this substitute operates in a different application domain (USB interface versus fax/modem/pager interface) and uses a different package size (12-X2QFN versus 42-QFN). Substitution feasibility depends on circuit-level compatibility and functional requirements of the target application.

Parameter Comparison

Engineering Selection Recommendations

The TUSB214QRWBRQ1 is an active product with current manufacturing support and improved moisture sensitivity characteristics (MSL 2 versus MSL 3). Both components maintain ROHS3 compliance and operate within the same supply voltage range. The TUSB214QRWBRQ1 includes automotive-grade qualification (AEC-Q100), providing additional reliability assurance for demanding applications.

Selection between these components must account for functional compatibility at the circuit level, as the 73M1822-IM/F targets fax/modem/pager applications while the TUSB214QRWBRQ1 is designed for USB interface applications. Package size differences (42-QFN versus 12-X2QFN) require PCB layout evaluation.

Frequently Asked Questions (FAQ)

Q: Can the TUSB214QRWBRQ1 directly replace the 73M1822-IM/F in existing designs?

A: Direct replacement is not guaranteed. While both components share identical supply voltage specifications (3V ~ 3.6V) and RoHS compliance, they serve different functional purposes. The 73M1822-IM/F is optimized for fax/modem/pager interfaces, while the TUSB214QRWBRQ1 is designed for USB interface applications. Circuit-level compatibility must be evaluated.

Q: What are the key differences in package specifications?

A: The 73M1822-IM/F uses a 42-QFN (8x8) package with exposed pad, while the TUSB214QRWBRQ1 uses a smaller 12-X2QFN (1.6x1.6) package. These different form factors require distinct PCB footprints and cannot be used interchangeably without redesign.

Q: How do the moisture sensitivity levels compare?

A: The 73M1822-IM/F has MSL 3 (168 hours), while the TUSB214QRWBRQ1 has MSL 2 (1 year). Lower MSL ratings indicate better tolerance to moisture exposure during storage and handling, making the TUSB214QRWBRQ1 more suitable for extended shelf life applications.

Q: Is the TUSB214QRWBRQ1 suitable for automotive applications?

A: Yes, the TUSB214QRWBRQ1 carries AEC-Q100 automotive qualification, making it appropriate for automotive-grade designs. The 73M1822-IM/F does not specify automotive qualification.

Q: What compliance standards apply to both components?

A: Both the 73M1822-IM/F and TUSB214QRWBRQ1 are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and fall under HTSUS code 8542.39.0001.