ISL84544IPZ Equivalent & Substitute Parts

Part Overview

The ISL84544IPZ is a single-circuit SPDT (Single Pole Double Throw) analog switch manufactured by Renesas Electronics Corporation. This component functions as a 2:1 multiplexer/demultiplexer with 60Ohm on-state resistance, designed for signal routing applications in analog and mixed-signal systems. The ISL84544IPZ is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and system maintenance.

Key Parameters

Parameter	Value
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Configuration	2:1
Number of Circuits	1
On-State Resistance (Max)	60Ohm
Channel-to-Channel Matching (ΔRon)	800mOhm
Supply Voltage Range (Single)	2.7V ~ 12V
Switch Time (Ton/Toff Max)	100ns / 75ns
Charge Injection	1pC
Channel Capacitance (CS(off)/CD(off))	8pF / 8pF
Leakage Current (IS(off) Max)	100pA
Crosstalk	-90dB @ 1MHz
Package Type	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ISL84544IPZ is determined by strict equivalence across the following critical parameters:

Functional Parameters:

Switch circuit topology (SPDT)
Multiplexer configuration (2:1)
Single circuit count
On-state resistance specification (60Ohm maximum)
Channel-to-channel matching tolerance (800mOhm)

Electrical Performance Parameters:

Supply voltage range (2.7V ~ 12V single supply)
Switch timing characteristics (100ns Ton, 75ns Toff maximum)
Charge injection (1pC)
Channel capacitance (8pF off-state)
Leakage current (100pA maximum)
Crosstalk performance (-90dB @ 1MHz)

Physical & Environmental Parameters:

Package type (8-DIP, 0.300" pitch, 7.62mm)
Through-hole mounting compatibility
RoHS3 compliance
MSL rating (1 - Unlimited)

The MAX4544CPA+ meets all specified electrical and physical parameters for direct substitution. The primary distinction is product status: ISL84544IPZ is obsolete while MAX4544CPA+ maintains active production status.

Parameter Comparison

Parameter	ISL84544IPZ	MAX4544CPA+	Match Status
Switch Circuit	SPDT	SPDT	Equivalent
Multiplexer Configuration	2:1	2:1	Equivalent
Number of Circuits	1	1	Equivalent
On-State Resistance (Max)	60Ohm	60Ohm	Equivalent
Channel-to-Channel Matching (ΔRon)	800mOhm	800mOhm	Equivalent
Supply Voltage Range (Single)	2.7V ~ 12V	2.7V ~ 12V	Equivalent
Switch Time Ton (Max)	100ns	100ns	Equivalent
Switch Time Toff (Max)	75ns	75ns	Equivalent
Charge Injection	1pC	1pC	Equivalent
Channel Capacitance CS(off)	8pF	8pF	Equivalent
Channel Capacitance CD(off)	8pF	8pF	Equivalent
Leakage Current IS(off) (Max)	100pA	100pA	Equivalent
Crosstalk	-90dB @ 1MHz	-90dB @ 1MHz	Equivalent
Package Type	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Operating Temperature Range	-40°C ~ 85°C	0°C ~ 70°C	Subset (MAX4544CPA+ narrower range)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Obsolete	Active	Active alternative available

Engineering Selection Recommendations

The MAX4544CPA+ is a direct functional equivalent to the ISL84544IPZ across all specified electrical and mechanical parameters. Both components share identical switch topology, on-state resistance, timing characteristics, and package configuration.

Compliance & Certification Alignment: Both parts maintain ROHS3 compliance and MSL rating 1 (Unlimited), ensuring compatibility with current manufacturing and environmental standards.

Operating Temperature Consideration: The MAX4544CPA+ specifies an operating temperature range of 0°C ~ 70°C, which is narrower than the ISL84544IPZ range of -40°C ~ 85°C. For applications requiring operation below 0°C or above 70°C, the temperature specification difference must be evaluated against actual system requirements.

Product Status: The ISL84544IPZ is obsolete. The MAX4544CPA+ maintains active production status, providing assured long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MAX4544CPA+ directly replace ISL84544IPZ in existing designs? A: Yes. Both components are electrically and mechanically equivalent across all specified parameters. Pin configuration, package footprint, and electrical performance are identical. No circuit modifications are required.

Q: What is the key difference between these parts? A: The primary difference is product status and operating temperature range. ISL84544IPZ is obsolete; MAX4544CPA+ is in active production. MAX4544CPA+ operates from 0°C ~ 70°C versus ISL84544IPZ at -40°C ~ 85°C. Verify temperature requirements for your application.

Q: Are the pin assignments identical? A: Both components use 8-DIP packaging with identical through-hole pin configuration. PCB layouts and socket compatibility are preserved.

Q: Do both parts meet current compliance requirements? A: Yes. Both ISL84544IPZ and MAX4544CPA+ are ROHS3 compliant with MSL rating 1 (Unlimited), meeting current manufacturing and environmental standards.

Q: What is the supply voltage compatibility? A: Both parts operate with single supply voltage from 2.7V to 12V. Dual supply operation is not supported by either component.

Q: How do the switching characteristics compare? A: Switching times, charge injection, channel capacitance, leakage current, and crosstalk specifications are identical between both parts. Signal integrity performance is equivalent.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message