TLC393IP Equivalent & Substitute Parts

Part Overview

The TLC393IP is a dual general-purpose comparator from Texas Instruments' LinCMOS™ series, housed in an 8-DIP through-hole package. This device features MOS open-drain outputs and operates across a 3V to 16V supply range, making it suitable for precision voltage comparison applications in analog signal processing circuits.

The TLC393IP is currently in Last Time Buy status, indicating discontinued production. Identifying qualified substitute parts is essential for design continuity, inventory planning, and long-term product support.

Substiute Parts

TLC393IP

Texas InstrumentsIn Stock: 1544TLC393IP Datasheet

Current PartRFQ

TLC393IDR

Texas InstrumentsIn Stock: 17198TLC393IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC393IP is determined by electrical parameter equivalence and functional compatibility. The following criteria establish valid substitutes:

• Identical number of comparator elements (2)
• Matching output configuration (MOS, Open-Drain)
• Identical supply voltage range (3V ~ 16V)
• Equivalent or superior electrical specifications (input offset, bias current, output current, propagation delay)
• Matching operating temperature range (-40°C ~ 85°C)
• Same base product number (TLC393) ensuring functional equivalence

The TLC393IDR meets all substitution criteria while offering improved product status (Active) and alternative packaging (8-SOIC surface mount).

Parameter Comparison

Engineering Selection Recommendations

The TLC393IDR is the qualified substitute for the TLC393IP based on the following factors:

• All electrical specifications are identical across both devices
• Both devices maintain ROHS3 compliance and REACH unaffected status
• The TLC393IDR carries Active product status, ensuring continued availability and manufacturing support
• The primary difference is packaging: TLC393IP uses through-hole 8-DIP mounting, while TLC393IDR uses surface-mount 8-SOIC
• PCB layout redesign is required when transitioning from through-hole to surface-mount technology
• Both devices are manufactured by Texas Instruments under the LinCMOS™ series

Frequently Asked Questions (FAQ)

Q: Can the TLC393IDR directly replace the TLC393IP without circuit modifications?

A: Electrical functionality is identical. However, the TLC393IDR uses 8-SOIC surface-mount packaging while the TLC393IP uses 8-DIP through-hole packaging. PCB layout and footprint changes are required.

Q: What is the pin-to-pin compatibility between these devices?

A: Both devices contain identical pin configurations for the two comparator channels. Pin assignments are functionally equivalent; however, physical package geometry differs significantly.

Q: Are there any compliance or certification differences?

A: Both devices maintain identical RoHS3 compliance and REACH unaffected status. No compliance differences exist.

Q: Why is the TLC393IP listed as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of the TLC393IP in 8-DIP packaging. The TLC393IDR in 8-SOIC packaging remains in active production.

Q: What are the inventory implications of this substitution?

A: The TLC393IP has 1,455 units in stock (limited supply). The TLC393IDR has 17,101 units available, providing significantly greater supply security for new designs.

Q: Are the electrical performance characteristics identical?

A: Yes. Input offset voltage, bias current, output current, quiescent current, CMRR, propagation delay, and operating temperature range are identical between both devices.