TLC339MDRG4 Equivalent & Substitute Parts

Part Overview

The TLC339MDRG4 is a general-purpose CMOS comparator IC featuring four independent comparator elements in a 14-SOIC surface-mount package. This device is designed for applications requiring precision voltage comparison with open-drain output configuration. The TLC339MDRG4 carries a Last Time Buy product status, indicating that this specific variant is no longer in active production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or design revisions.

Substiute Parts

TLC339MDRG4

Texas InstrumentsIn Stock: 2323TLC339MDRG4 Datasheet

Current PartRFQ

TLC339MDR

Texas InstrumentsIn Stock: 1220TLC339MDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC339MDRG4 is determined by strict equivalence across the following critical parameters:

Number of comparator elements (4 required), output configuration (CMOS open-drain), supply voltage range (4V ~ 16V minimum), input offset voltage specification (5mV @ 10V maximum), input bias current (5pA @ 5V maximum), output current capability (20mA typical), quiescent current (175µA maximum), common-mode rejection ratio (84dB typical), propagation delay (4.5µs maximum), operating temperature range (-55°C ~ 125°C), and package type (14-SOIC surface mount).

The primary substitute identified is TLC339MDR, which maintains identical electrical specifications and packaging while offering Active product status, ensuring continued availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The TLC339MDR is the direct equivalent substitute for the TLC339MDRG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The primary distinction is product status: TLC339MDRG4 is designated Last Time Buy, while TLC339MDR maintains Active status with ongoing manufacturing support.

For new designs or production runs requiring long-term component availability, TLC339MDR is the appropriate selection. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The identical 14-SOIC package ensures direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can TLC339MDR be used as a direct replacement for TLC339MDRG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. No circuit modifications or PCB layout changes are required. The only difference is product lifecycle status.

Q: What is the significance of Last Time Buy status for TLC339MDRG4?

A: Last Time Buy indicates that Texas Instruments will no longer manufacture this specific part number variant after a defined cutoff date. Existing inventory may be available, but new production orders should transition to TLC339MDR to ensure supply continuity.

Q: Are there any compliance or certification differences between these parts?

A: No. Both TLC339MDRG4 and TLC339MDR carry identical ROHS3 compliance and REACH unaffected status. Moisture sensitivity level is 1 (Unlimited) for both variants.

Q: Is the 14-SOIC package identical for both parts?

A: Yes. Both parts use the same 14-SOIC package with 0.154" width (3.90mm). Pin configuration, spacing, and footprint are identical, enabling direct PCB substitution.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on four-element comparator configuration, CMOS open-drain output, 4V to 16V supply range, 5mV input offset voltage, 5pA input bias current, 20mA output current, 175µA quiescent current, 84dB CMRR, and 4.5µs propagation delay maximum.