DSC8002AI1 Equivalent & Substitute Parts

Part Overview

The DSC8002AI1 is a MEMS-based programmable oscillator from Microchip Technology's DSC8002 series, designed for applications requiring user-programmable frequency selection across the 1 MHz to 150 MHz range. This component operates on supply voltages between 1.8V and 3.3V with CMOS output and includes a standby function for power management. The DSC8002AI1 is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Base Resonator	MEMS
Type	XO (Standard)
Programmable Type	Blank (User Must Program)
Available Frequency Range	1 MHz ~ 150 MHz
Output	CMOS
Voltage - Supply	1.8V ~ 3.3V
Frequency Stability (Total)	±50ppm
Operating Temperature	-40°C ~ 85°C
Function	Standby
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height - Seated (Max)	0.035" (0.90mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DSC8002AI1 is based on strict alignment of the following critical parameters:

Base Resonator: MEMS technology
Type: XO (Standard) oscillator
Programmable Type: Blank (user-programmable)
Frequency Range: 1 MHz ~ 150 MHz
Output Type: CMOS
Supply Voltage: 1.8V ~ 3.3V
Standby Function: Present
Package: 4-SMD, No Lead
Physical Dimensions: 0.276" L x 0.197" W (7.00mm x 5.00mm)
Height: 0.035" (0.90mm) maximum
Operating Temperature: -40°C ~ 85°C
RoHS3 Compliance: Required
MSL Rating: 1 (Unlimited)

All substitute parts listed below meet these core requirements. Variations in frequency stability and supply current are noted but do not preclude substitution when application requirements permit.

Parameter Comparison

Parameter	DSC8002AI1 (Main)	DSC8001AI1	DSC8001AI2	DSC8001AI5
Series	DSC8002	DSC8001	DSC8001	DSC8001
Product Status	Obsolete	Active	Active	Active
Base Resonator	MEMS	MEMS	MEMS	MEMS
Type	XO (Standard)	XO (Standard)	XO (Standard)	XO (Standard)
Programmable Type	Blank	Blank	Blank	Blank
Frequency Range	1 MHz ~ 150 MHz	1 MHz ~ 150 MHz	1 MHz ~ 150 MHz	1 MHz ~ 150 MHz
Output	CMOS	CMOS	CMOS	CMOS
Voltage - Supply	1.8V ~ 3.3V	1.8V ~ 3.3V	1.8V ~ 3.3V	1.8V ~ 3.3V
Frequency Stability (Total)	±50ppm	±50ppm	±25ppm	±10ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Function	Standby	Standby	Standby	Standby
Current - Supply (Max)	10mA	12.2mA	12.2mA	12.2mA
Current - Supply (Disable) (Max)	1 µA	15 µA	15 µA	15 µA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	7.00mm x 5.00mm	7.00mm x 5.00mm	7.00mm x 5.00mm	7.00mm x 5.00mm
Height - Seated (Max)	0.90mm	0.90mm	0.90mm	0.90mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Ratings	—	AEC-Q100	AEC-Q100	AEC-Q100

Engineering Selection Recommendations

All three substitute parts (DSC8001AI1, DSC8001AI2, DSC8001AI5) are active products from Microchip Technology's DSC8001 series and provide direct functional equivalence to the obsolete DSC8002AI1. The DSC8001 series maintains identical mechanical packaging, electrical interface, and frequency programming capability.

Selection among the three substitutes depends on application-specific frequency stability requirements:

DSC8001AI1 matches the frequency stability specification of the original part at ±50ppm and carries AEC-Q100 automotive qualification.

DSC8001AI2 provides improved frequency stability at ±25ppm while maintaining all other electrical and mechanical parameters, also with AEC-Q100 qualification.

DSC8001AI5 offers the tightest frequency stability at ±10ppm with AEC-Q100 qualification, suitable for applications requiring enhanced frequency accuracy.

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile. The increase in maximum supply current (12.2mA versus 10mA) and disable current (15 µA versus 1 µA) should be evaluated against power budget constraints in the target application.

Frequently Asked Questions (FAQ)

Q: Can DSC8001AI1, DSC8001AI2, and DSC8001AI5 be used interchangeably with DSC8002AI1?

A: Yes, all three parts are mechanically and electrically compatible substitutes. They share identical package dimensions, pinout, supply voltage range, frequency programming capability, and operating temperature range. The primary differences are frequency stability specifications and supply current characteristics.

Q: What is the difference between the three substitute parts?

A: The three DSC8001 variants differ in frequency stability tolerance and supply current specifications. DSC8001AI1 provides ±50ppm stability matching the original part. DSC8001AI2 offers ±25ppm stability. DSC8001AI5 provides the tightest tolerance at ±10ppm. All three carry identical maximum supply current of 12.2mA and disable current of 15 µA.

Q: Are there any compliance or certification differences?

A: The original DSC8002AI1 carries no specific ratings designation. All three DSC8001 substitutes carry AEC-Q100 automotive qualification, which represents an enhancement in terms of reliability documentation and testing. All parts maintain ROHS3 compliance and MSL 1 rating.

Q: Will the increased supply current of the DSC8001 series affect my design?

A: The DSC8001 series specifies a maximum supply current of 12.2mA compared to 10mA for the DSC8002AI1. The disable current increases from 1 µA to 15 µA. These differences should be evaluated against your power budget and standby power requirements. For most applications, this increase is negligible.

Q: Can I use a higher-stability part (DSC8001AI5) as a direct replacement?

A: Yes. The DSC8001AI5 with ±10ppm stability is a direct mechanical and electrical substitute. Using a part with tighter frequency stability than required does not create compatibility issues and may benefit applications sensitive to frequency drift.

Q: What is the significance of the HTSUS code difference between DSC8001AI5 and the other parts?

A: The HTSUS code difference (8542.39.0060 for DSC8001AI5 versus 8542.39.0001 for others) reflects tariff classification and does not affect technical compatibility or substitution suitability.

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