TLC354CPWRG4 Equivalent & Substitute Parts

Part Overview

The TLC354CPWRG4 is a quad differential comparator IC manufactured by Texas Instruments, housed in a 14-TSSOP surface mount package. This device is classified as a LinCMOS™ series comparator with CMOS, MOS, open-drain, and TTL output types. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLC354CPWRG4
Manufacturer	Texas Instruments
Category	Linear
Type	Differential
Number of Elements	4
Output Type	CMOS, MOS, Open-Drain, TTL
Voltage - Supply, Single/Dual (±)	1.4V ~ 16V, ±0.7V ~ 8V
Voltage - Input Offset (Max)	5mV @ 5V
Current - Input Bias (Max)	5pA @ 5V
Current - Output (Typ)	20mA
Current - Quiescent (Max)	800µA
Operating Temperature	0°C ~ 70°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TLC354CPWRG4 is determined by the following critical parameters:

Package compatibility: 14-TSSOP surface mount form factor
Functional equivalence: Quad differential comparator configuration
Output type compatibility: CMOS, MOS, open-drain, TTL outputs
Supply voltage range: Minimum 1.4V single supply or ±0.7V dual supply capability
Input offset voltage: Maximum 5mV specification
Input bias current: Maximum 5pA specification
Output current capability: Minimum 20mA typical
Quiescent current: Maximum 800µA specification
Operating temperature range: Minimum 0°C to 70°C coverage
Compliance standards: ROHS3 compliant, MSL 1 rating

The substitute parts listed below meet these core electrical and mechanical requirements within the specified tolerances.

Parameter Comparison

Parameter	TLC354CPWRG4	TLC354CPWR	TS339CPT	TS339IPT
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics
Type	Differential	Differential	General Purpose	General Purpose
Number of Elements	4	4	4	4
Output Type	CMOS, MOS, Open-Drain, TTL	CMOS, MOS, Open-Drain, TTL	CMOS, Open-Drain	CMOS, Open-Drain
Voltage - Supply, Single/Dual (±)	1.4V ~ 16V, ±0.7V ~ 8V	1.4V ~ 16V, ±0.7V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V
Voltage - Input Offset (Max)	5mV @ 5V	5mV @ 5V	5mV @ 10V	5mV @ 10V
Current - Input Bias (Max)	5pA @ 5V	5pA @ 5V	1pA @ 5V	1pA @ 5V
Current - Output (Typ)	20mA	20mA	20mA	20mA
Current - Quiescent (Max)	800µA	800µA	25µA	25µA
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 125°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Last Time Buy	Active	Active

Engineering Selection Recommendations

TLC354CPWR is the direct manufacturer-recommended substitute from Texas Instruments. This part maintains identical electrical specifications and supply voltage ranges as the TLC354CPWRG4, with the primary difference being packaging format (Tape & Reel versus individual packaging). The part carries Last Time Buy status, indicating limited future availability.

TS339CPT and TS339IPT are STMicroelectronics alternatives that provide functional equivalence with notable differences. Both parts require a minimum supply voltage of 2.7V (versus 1.4V for the TLC354 series), which may restrict use in ultra-low-voltage applications. The TS339 series demonstrates superior input bias current performance (1pA versus 5pA) and significantly lower quiescent current consumption (25µA versus 800µA). TS339IPT extends the operating temperature range to -40°C to 125°C, providing broader thermal coverage compared to the standard 0°C to 70°C range.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical 14-TSSOP package geometry, ensuring mechanical and environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can TS339CPT or TS339IPT be used as direct replacements for TLC354CPWRG4?

A: Functional substitution is possible with design considerations. Both TS339 parts meet the core quad comparator requirements and package specifications. However, the minimum supply voltage requirement of 2.7V (versus 1.4V) eliminates these options for applications requiring operation below 2.7V single supply. The output type specification differs slightly; TS339 parts provide CMOS and open-drain outputs, while TLC354 includes additional TTL output capability.

Q: What is the primary difference between TLC354CPWR and TLC354CPWRG4?

A: The primary difference is packaging format. TLC354CPWR is supplied in Tape & Reel (TR) format for automated assembly, while TLC354CPWRG4 uses standard packaging. Electrical specifications and performance characteristics are identical.

Q: Which substitute offers the best power efficiency?

A: TS339CPT and TS339IPT both provide superior power efficiency with quiescent current of 25µA compared to 800µA for the TLC354 series. This 32-fold reduction in quiescent current consumption makes the TS339 series preferable for battery-powered or low-power applications, provided the 2.7V minimum supply voltage requirement is compatible with the design.

Q: Are all substitute parts available in the same 14-TSSOP package?

A: Yes. TLC354CPWR, TS339CPT, and TS339IPT are all housed in 14-TSSOP (0.173", 4.40mm width) surface mount packages with identical pinout compatibility and mechanical dimensions.

Q: What is the temperature range limitation when using TS339IPT?

A: TS339IPT supports an extended operating temperature range of -40°C to 125°C, compared to 0°C to 70°C for TLC354CPWRG4 and TS339CPT. This extended range accommodates industrial and automotive applications requiring broader thermal operation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message