DS1090U-32 Clock Generator IC Equivalent & Substitute Parts

Part Overview

The DS1090U-32 is a Clock Generator IC manufactured by Analog Devices Inc./Maxim Integrated, part of the EconOscillator™ series. This device generates clock signals up to 250kHz with CMOS and TTL output options, designed for surface mount applications in 8-TSSOP/8-MSOP packaging. The main part number DS1090U-32 is currently listed as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

DS1090U-32

Analog Devices Inc./Maxim IntegratedIn Stock: 944DS1090U-32 Datasheet

Current PartRFQ

DS1090U-32+

Analog Devices Inc./Maxim IntegratedIn Stock: 1270DS1090U-32+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1090U-32 is based on strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Frequency range: 250kHz maximum
• Output configuration: CMOS and TTL compatible
• Supply voltage: 3V to 5.5V operating range
• Package type: 8-TSSOP/8-MSOP form factor
• Pin count and pinout: 8-pin configuration
• Operating temperature range: -40°C to 85°C
• Circuit count: Single circuit (1)
• Input/Output ratio: 1:1

The DS1090U-32+ qualifies as a direct substitute because it maintains identical electrical specifications, package dimensions, and functional characteristics while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The DS1090U-32+ is the direct equivalent for the obsolete DS1090U-32. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The DS1090U-32+ offers the advantage of active product status, meaning it remains in current production and is available through authorized distribution channels.

The DS1090U-32+ achieves ROHS3 compliance, whereas the original DS1090U-32 is RoHS non-compliant. This compliance improvement is significant for applications subject to environmental regulations and supply chain requirements. The DS1090U-32+ is supplied in tube packaging, providing standard handling and storage conditions for surface mount components.

For new designs or production continuity, the DS1090U-32+ is the appropriate selection. Both parts operate within identical voltage ranges (3V to 5.5V), temperature ranges (-40°C to 85°C), and frequency specifications (250kHz maximum), confirming full functional interchangeability.

Frequently Asked Questions (FAQ)

Q: Can DS1090U-32+ replace DS1090U-32 in existing designs? A: Yes. The DS1090U-32+ is a direct substitute with identical electrical specifications, output types (CMOS/TTL), frequency range (250kHz), supply voltage (3V to 5.5V), operating temperature range (-40°C to 85°C), and 8-TSSOP/8-MSOP package configuration. Pin-for-pin compatibility is maintained.

Q: What is the primary difference between these parts? A: The DS1090U-32 is obsolete, while the DS1090U-32+ is an active product. The DS1090U-32+ also provides ROHS3 compliance, whereas the original part is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package differences? A: Both parts use the same 8-TSSOP/8-MSOP package with 0.118" width (3.00mm). The DS1090U-32+ is supplied in tube packaging, which is standard for surface mount components.

Q: What supply voltage range do these parts support? A: Both the DS1090U-32 and DS1090U-32+ operate across a 3V to 5.5V supply voltage range, providing flexibility for various logic level applications.

Q: What is the maximum frequency output? A: Both parts generate clock signals up to 250kHz with CMOS and TTL output compatibility.

Q: Are these parts suitable for -40°C to 85°C temperature environments? A: Yes. Both the DS1090U-32 and DS1090U-32+ are rated for operation across the full -40°C to 85°C temperature range.