TLC3704MD Equivalent & Substitute Parts

Part Overview

The TLC3704MD is a general-purpose CMOS comparator with four independent elements, manufactured by Texas Instruments under the LinCMOS™ series. This device features push-pull and TTL-compatible outputs, operating across a 4V to 16V supply range with a 14-SOIC surface-mount package. The TLC3704MD is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current availability and product status requirements.

Key Parameters

Parameter	TLC3704MD Value	Unit
Number of Elements	4	-
Output Type	CMOS, Push-Pull, TTL	-
Voltage - Supply, Single/Dual (±)	4V ~ 16V	V
Voltage - Input Offset (Max)	5mV @ 10V	mV
Current - Input Bias (Max)	5pA @ 5V	pA
Current - Output (Typ)	20mA	mA
Current - Quiescent (Max)	175µA	µA
CMRR, PSRR (Typ)	84dB CMRR	dB
Propagation Delay (Max)	4.5µs	µs
Operating Temperature	-55°C ~ 125°C	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	-
Mounting Type	Surface Mount	-

Substitute Part Grouping Explanation

Substitute parts for the TLC3704MD are categorized based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Number of Elements: 4 independent comparators
Output Type: CMOS and TTL-compatible outputs
Supply Voltage Range: Minimum 4V to 16V compatibility
Input Offset Voltage: Maximum 5mV @ 10V
Input Bias Current: Maximum 5pA @ 5V
Output Current: Typical 20mA
Package Type: 14-pin surface-mount configuration
RoHS3 Compliance and REACH Unaffected status

Substitution Categories:

Category 1: Direct Manufacturer Equivalents (Texas Instruments) TLC3704IDR represents the active production equivalent from the same manufacturer, maintaining identical electrical specifications with improved product status and lower quiescent current consumption.

Category 2: Cross-Manufacturer Alternatives with Package Variation MAX964EEE+ and MAX964EEE+T (Analog Devices Inc./Maxim Integrated) provide functional equivalence with different package geometry (16-QSOP vs. 14-SOIC) and narrower supply voltage range (2.7V ~ 5.5V). These parts require PCB layout redesign.

Category 3: Cross-Manufacturer Alternatives with Output Type Variation TS339CDT and TS339IDT (STMicroelectronics) maintain 14-pin SOIC packaging with open-drain output configuration instead of push-pull, requiring external pull-up resistors. Extended supply voltage range (2.7V ~ 16V, ±1.35V ~ 8V) provides broader application flexibility.

Category 4: Cross-Manufacturer Alternative with Package Variation TS3704IPT (STMicroelectronics) offers push-pull output compatibility with 14-TSSOP package (0.173", 4.40mm width), requiring PCB layout modification.

Category 5: Parametric Equivalent (Texas Instruments) TLC3704MDG4 maintains identical specifications to TLC3704MD but is discontinued at DiGi Electronics, limiting availability for new procurement.

Parameter Comparison

Parameter	TLC3704MD	TLC3704IDR	MAX964EEE+	MAX964EEE+T	TS339CDT	TS339IDT	TS3704IPT
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices/Maxim	Analog Devices/Maxim	STMicroelectronics	STMicroelectronics	STMicroelectronics
Number of Elements	4	4	4	4	4	4	4
Output Type	CMOS, Push-Pull, TTL	CMOS, Push-Pull, TTL	CMOS, TTL	CMOS, TTL	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, Push-Pull
Voltage - Supply (V)	4V ~ 16V	3V ~ 16V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V
Voltage - Input Offset (Max)	5mV @ 10V	5mV @ 10V	1.5mV @ 5V	1.5mV @ 5V	5mV @ 10V	5mV @ 10V	5mV @ 10V
Current - Input Bias (Max)	5pA @ 5V	5pA @ 5V	15µA @ 5V	15µA @ 5V	1pA @ 5V	1pA @ 5V	1pA @ 5V
Current - Output (Typ)	20mA	20mA	-	-	20mA	20mA	20mA
Current - Quiescent (Max)	175µA	125µA	9mA	9mA	25µA	25µA	25µA
CMRR (Typ)	84dB	84dB	80dB	80dB	75dB	75dB	80dB
Propagation Delay (Max)	4.5µs	4.5µs	7ns	7ns	-	-	-
Operating Temperature	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	14-SOIC	14-SOIC	16-SSOP	16-SSOP	14-SOIC	14-SOIC	14-TSSOP
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS3 Compliance	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): TLC3704IDR is the recommended substitute. This part maintains identical electrical specifications to TLC3704MD, operates across a compatible supply voltage range (3V ~ 16V), and is manufactured by Texas Instruments with active product status. The TLC3704IDR features lower quiescent current (125µA vs. 175µA), improving power efficiency. Both parts are RoHS3 compliant and REACH unaffected. No PCB layout modifications are necessary.

For Applications Requiring Extended Temperature Range: TS339IDT and TS3704IPT both support the full -40°C ~ 125°C operating temperature range, matching the TLC3704MD's lower temperature limit of -55°C. TS339IDT maintains 14-SOIC packaging but requires external pull-up resistors due to open-drain output configuration. TS3704IPT provides push-pull output compatibility but requires PCB redesign for 14-TSSOP package geometry.

For Applications with Relaxed Temperature Requirements: TS339CDT operates across 0°C ~ 70°C and is suitable for commercial-grade applications. This part offers the lowest quiescent current (25µA) and input bias current (1pA), reducing power consumption and improving precision in low-signal applications.

For High-Speed Applications: MAX964EEE+ and MAX964EEE+T provide significantly faster propagation delay (7ns vs. 4.5µs), enabling high-frequency comparator applications. These parts require PCB layout redesign for 16-QSOP package and operate within a narrower supply voltage range (2.7V ~ 5.5V). Selection is appropriate only for applications operating within this voltage window.

Compliance and Regulatory Considerations: All substitute parts maintain RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement and manufacturing.

Frequently Asked Questions (FAQ)

Q: Can TLC3704IDR be used as a direct drop-in replacement for TLC3704MD? A: Yes. TLC3704IDR maintains identical electrical specifications, 14-SOIC package geometry, and functional output characteristics. The supply voltage range is slightly extended (3V minimum vs. 4V minimum), and quiescent current is reduced. No design modifications are required.

Q: What is the primary difference between TS339IDT and TS3704IPT? A: TS339IDT features open-drain output configuration requiring external pull-up resistors, while TS3704IPT provides push-pull output. TS339IDT uses 14-SOIC packaging identical to TLC3704MD; TS3704IPT uses 14-TSSOP packaging requiring PCB layout modification. Both support extended temperature range (-40°C ~ 125°C).

Q: Why do MAX964EEE+ and MAX964EEE+T require PCB redesign? A: These parts use 16-QSOP package geometry (0.154", 3.90mm width) instead of 14-SOIC, resulting in different pin count, pin spacing, and board footprint. PCB layout must be redesigned to accommodate the new package. Additionally, the narrower supply voltage range (2.7V ~ 5.5V) may limit application in systems requiring 4V minimum supply.

Q: Which substitute part offers the lowest power consumption? A: TS339CDT and TS339IDT both feature the lowest quiescent current at 25µA (compared to 175µA for TLC3704MD and 125µA for TLC3704IDR). TS339CDT additionally offers the lowest input bias current (1pA), making it suitable for precision, low-power applications.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed—TLC3704IDR, MAX964EEE+, MAX964EEE+T, TS339CDT, TS339IDT, and TS3704IPT—are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the operating temperature range limitation for TS339CDT? A: TS339CDT operates across 0°C ~ 70°C, which is narrower than TLC3704MD (-55°C ~ 125°C). This part is suitable for commercial-grade applications but not for extended temperature range or military-grade specifications requiring -55°C minimum operation.

Q: Can open-drain output parts (TS339CDT, TS339IDT) replace push-pull output parts (TLC3704MD)? A: Open-drain output requires external pull-up resistors to establish high-level output voltage. If the original design does not include pull-up resistors, circuit modification is necessary. If pull-up resistors are already present, open-drain parts are functionally compatible.

Q: Which substitute part is recommended for new designs? A: TLC3704IDR is recommended for new designs requiring direct compatibility with TLC3704MD specifications. For applications prioritizing power efficiency, TS339IDT or TS3704IPT offer significantly lower quiescent current. For high-speed applications, MAX964EEE+ or MAX964EEE+T provide 7ns propagation delay.

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