TLC339CDBR Equivalent & Substitute Parts

Part Overview

The TLC339CDBR is a general-purpose CMOS comparator with open-drain output configuration, manufactured by Texas Instruments in a 14-SSOP surface-mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TLC339CDBR operates across a wide supply voltage range of 3V to 16V and is suitable for applications requiring low input offset voltage and low input bias current characteristics.

Substiute Parts

TLC339CDBR

Texas InstrumentsIn Stock: 812TLC339CDBR Datasheet

Current PartRFQ

CMP401GRUZ-REEL

Analog Devices Inc.In Stock: 4922CMP401GRUZ-REEL Datasheet

MFR RecommendedRFQ

CMP402GRUZ-REEL

Analog Devices Inc.In Stock: 7555CMP402GRUZ-REEL Datasheet

MFR RecommendedRFQ

CMP402GSZ

Analog Devices Inc.In Stock: 3333CMP402GSZ Datasheet

MFR RecommendedRFQ

TS339IDT

STMicroelectronicsIn Stock: 15817TS339IDT Datasheet

MFR RecommendedRFQ

TS339IPT

STMicroelectronicsIn Stock: 19183TS339IPT Datasheet

MFR RecommendedRFQ

TS374CDT

STMicroelectronicsIn Stock: 10018TS374CDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC339CDBR are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Number of Elements: 4 comparators
• Output Type: CMOS, Open-Drain (preferred for direct replacement)
• Voltage - Supply Range: Must encompass or overlap with 3V ~ 16V
• Voltage - Input Offset (Max): 5mV or lower
• Current - Input Bias (Max): 5pA or lower
• Current - Output (Typ): 20mA or higher
• Operating Temperature: Must support 0°C ~ 70°C minimum
• RoHS3 Compliance: Required
• Mounting Type: Surface Mount

Substitute Categories:

Category A - Direct Package Equivalents (14-pin packages with Open-Drain output):

• TS339IDT (14-SOIC, STMicroelectronics)
• TS339IPT (14-TSSOP, STMicroelectronics)

These parts maintain the same pin count, open-drain output configuration, and comparable electrical characteristics to the TLC339CDBR.

Category B - Functional Equivalents (16-pin packages with CMOS/TTL output):

• CMP401GRUZ-REEL (16-TSSOP, Analog Devices Inc.)
• CMP402GRUZ-REEL (16-TSSOP, Analog Devices Inc.)
• CMP402GSZ (16-SOIC, Analog Devices Inc.)

These parts provide 4 comparators with CMOS and TTL output options. While they use 16-pin packages instead of 14-pin, they offer active product status and extended operating temperature ranges.

Category C - Alternative Type (Differential comparator):

• TS374CDT (14-SOIC, STMicroelectronics)

This part is a differential comparator with 4 elements and open-drain output, suitable for applications requiring differential input configurations.

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement:

TS339IDT and TS339IPT are the preferred substitutes when pin-for-pin compatibility is required. Both parts maintain the 14-pin package configuration, open-drain output type, and comparable electrical specifications to the TLC339CDBR. These STMicroelectronics devices offer active product status, extended operating temperature range (-40°C to 125°C), and superior input bias current performance (1pA versus 5pA). Both are ROHS3 compliant with MSL 1 rating.

For Extended Temperature Range Applications:

If the application requires operation beyond the TLC339CDBR's 0°C to 70°C range, TS339IDT and TS339IPT support -40°C to 125°C operation while maintaining functional equivalence.

For 16-Pin Package Alternatives:

CMP401GRUZ-REEL, CMP402GRUZ-REEL, and CMP402GSZ from Analog Devices Inc. provide 4-element comparator solutions with CMOS and TTL output options. These parts require PCB layout redesign due to 16-pin package configuration but offer active product status and extended temperature support. CMP402GRUZ-REEL and CMP402GSZ feature lower quiescent current (1.2mA, 1mA) compared to CMP401GRUZ-REEL (6mA, 1mA).

For Differential Input Applications:

TS374CDT provides a differential comparator alternative with 4 elements, open-drain output, and 14-SOIC package. This part is suitable for applications requiring differential input configurations and maintains the same operating temperature range as the TLC339CDBR (0°C to 70°C).

Compliance Considerations:

All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the TLC339CDBR's compliance profile. All parts are REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001.

Frequently Asked Questions (FAQ)

Q: Can TS339IDT or TS339IPT be used as direct replacements for TLC339CDBR?

A: Yes. Both TS339IDT and TS339IPT maintain the same 4-element comparator configuration, open-drain output type, and comparable electrical specifications. TS339IDT uses a 14-SOIC package while TS339IPT uses a 14-TSSOP package. Pin compatibility requires verification against specific PCB layout, but electrical functionality is equivalent.

Q: What is the difference between TS339IDT and TS339IPT?

A: Both parts are functionally identical STMicroelectronics TS339 comparators with identical electrical specifications. The primary difference is packaging: TS339IDT is supplied in 14-SOIC (0.154", 3.90mm width) while TS339IPT is supplied in 14-TSSOP (0.173", 4.40mm width). Selection depends on PCB footprint requirements.

Q: Why do CMP401GRUZ-REEL and CMP402GRUZ-REEL use 16-pin packages instead of 14-pin?

A: The CMP401 and CMP402 series from Analog Devices Inc. are designed with 16-pin TSSOP packages to accommodate additional functionality and output configuration options (CMOS and TTL outputs). These parts require PCB redesign but offer active product status and extended operating temperature range.

Q: What is the difference between CMP401GRUZ-REEL and CMP402GRUZ-REEL?

A: Both are 4-element comparators in 16-TSSOP packages from Analog Devices Inc. with identical supply voltage (±5V), input offset voltage (3mV @ 5V), and input bias current (3µA @ 5V). The primary difference is propagation delay: CMP401GRUZ-REEL has 30ns maximum delay while CMP402GRUZ-REEL has 75ns maximum delay. CMP402GRUZ-REEL also features lower quiescent current (1.2mA, 1mA versus 6mA, 1mA).

Q: Can CMP402GSZ be used in place of CMP402GRUZ-REEL?

A: Yes. CMP402GSZ and CMP402GRUZ-REEL are functionally identical Analog Devices Inc. CMP402 comparators with identical electrical specifications. The difference is packaging: CMP402GSZ is supplied in 16-SOIC (0.154", 3.90mm width) tube packaging, while CMP402GRUZ-REEL is supplied in 16-TSSOP (0.173", 4.40mm width) cut tape and Digi-Reel format. Selection depends on procurement and assembly requirements.

Q: Is TS374CDT suitable as a replacement for TLC339CDBR?

A: TS374CDT is a differential comparator, not a general-purpose comparator. It is suitable only for applications requiring differential input configurations. While it maintains the same 4-element count, 14-SOIC package, and open-drain output type, the differential input architecture makes it functionally different from the general-purpose TLC339CDBR.

Q: What are the key electrical differences between TLC339CDBR and its substitutes?

A: The TLC339CDBR has a maximum input offset voltage of 5mV @ 10V and input bias current of 5pA @ 5V. TS339IDT and TS339IPT match these specifications exactly. CMP401GRUZ-REEL, CMP402GRUZ-REEL, and CMP402GSZ offer superior input offset voltage (3mV @ 5V) but higher input bias current (3µA @ 5V). All substitutes maintain 20mA typical output current and ROHS3 compliance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TS339IDT, TS339IPT, CMP401GRUZ-REEL, CMP402GRUZ-REEL, CMP402GSZ, and TS374CDT) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the TLC339CDBR's compliance profile.