CPC7232KTR Equivalent & Substitute Parts

Part Overview

The CPC7232KTR is an 8-channel analog switch IC manufactured by Littelfuse, designed for ultrasound applications. This part operates as a 1:1 multiplexer/demultiplexer with SPST (Single Pole Single Throw) switching architecture in a 48-LQFP surface mount package. The product is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	CPC7232KTR
Manufacturer	Littelfuse
Category	Interface
Package / Case	48-LQFP
Number of Channels	8
Switch Circuit	SPST
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	38Ω
Voltage - Supply, Single (V+)	4.5V ~ 6V
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the CPC7232KTR is determined by the following critical parameters:

Package compatibility: 48-LQFP (7x7) form factor for direct PCB replacement
Channel configuration: 8-channel SPST switching architecture
On-state resistance: 38Ω maximum specification
Operating temperature range: 0°C ~ 70°C
Supply voltage compatibility: Parts must operate within or exceed the 4.5V ~ 6V range
Mounting type: Surface mount technology
Compliance: ROHS3 compliant and REACH unaffected status

The MAX4802 series from Analog Devices Inc./Maxim Integrated meets all critical substitution criteria. All substitute parts maintain identical channel count, switching topology, on-state resistance specification, operating temperature range, and package geometry. Substitute parts offer extended supply voltage ranges and active product status, providing improved availability and long-term support.

Parameter Comparison

Parameter	CPC7232KTR	MAX4802ACCM+	MAX4802ACCM+T	MAX4802CCM+	MAX4802CCM+T
Manufacturer	Littelfuse	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Number of Channels	8	8	8	8	8
Multiplexer/Demultiplexer Circuit	1:1	1:1	1:1	1:1	1:1
On-State Resistance (Max)	38Ω	38Ω	38Ω	38Ω	38Ω
Voltage - Supply, Single (V+)	4.5V ~ 6V	2.7V ~ 6V	2.7V ~ 6V	2.7V ~ 13.2V	2.7V ~ 13.2V
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	48-LQFP	48-LQFP	48-LQFP	48-LQFP	48-LQFP
Supplier Device Package	48-LQFP	48-LQFP (7x7)	48-LQFP (7x7)	48-LQFP (7x7)	48-LQFP (7x7)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active
Packaging	-	-	Tape & Reel (TR)	-	Tape & Reel (TR)

Engineering Selection Recommendations

All four MAX4802 variants are direct functional equivalents to the CPC7232KTR and are suitable for substitution in ultrasound switch applications. Selection between variants depends on packaging and supply voltage requirements:

MAX4802ACCM+ and MAX4802ACCM+T: These variants operate within a 2.7V ~ 6V supply range, fully encompassing the CPC7232KTR specification of 4.5V ~ 6V. Both maintain identical electrical performance with 38Ω on-state resistance and 8-channel SPST architecture. The ACCM+ variant is supplied in standard packaging, while ACCM+T is supplied in Tape & Reel format for automated assembly.

MAX4802CCM+ and MAX4802CCM+T: These variants extend the supply voltage range to 2.7V ~ 13.2V, providing additional design flexibility beyond the original CPC7232KTR specification. Both maintain identical channel configuration and on-state resistance. The CCM+ variant is supplied in standard packaging, while CCM+T is supplied in Tape & Reel format.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original part. Product status for all MAX4802 variants is active, ensuring long-term availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can MAX4802 series parts directly replace CPC7232KTR in existing designs?

A: Yes. All MAX4802 variants maintain identical 48-LQFP package geometry, 8-channel SPST switching configuration, 38Ω on-state resistance specification, and 0°C ~ 70°C operating temperature range. Pin-for-pin compatibility is confirmed for direct PCB replacement.

Q: What is the difference between MAX4802ACCM+ and MAX4802CCM+ variants?

A: The primary difference is supply voltage range. MAX4802ACCM+ operates at 2.7V ~ 6V, while MAX4802CCM+ operates at 2.7V ~ 13.2V. Both maintain identical on-state resistance, channel count, and switching performance. Selection depends on the system supply voltage requirements.

Q: What does the "+T" suffix indicate in part numbers?

A: The "+T" suffix indicates Tape & Reel packaging format, suitable for automated pick-and-place assembly. Parts without the "+T" suffix are supplied in standard packaging. Electrical performance is identical between packaged and tape & reel variants of the same base part number.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All MAX4802 variants (ACCM+, ACCM+T, CCM+, CCM+T) are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the CPC7232KTR.

Q: Which MAX4802 variant should be selected for new designs?

A: For applications requiring supply voltages up to 6V, either MAX4802ACCM+ or MAX4802ACCM+T is appropriate. For applications requiring extended supply voltage capability up to 13.2V, select MAX4802CCM+ or MAX4802CCM+T. Choose the "+T" variant if automated assembly with tape & reel feeding is required; otherwise, standard packaging variants are suitable.

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