X4163PZ Equivalent & Substitute Parts

Part Overview

The X4163PZ is a supervisor integrated circuit manufactured by Renesas Electronics Corporation, designed for power management applications. It functions as a simple reset/power-on reset device with open drain or open collector output, monitoring a single voltage channel. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring similar supervision capabilities.

Substiute Parts

X4163PZ

Renesas Electronics CorporationIn Stock: 699X4163PZ Datasheet

Current PartRFQ

MIC1232NY

Microchip TechnologyIn Stock: 2326MIC1232NY Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the X4163PZ is determined by the following critical parameters:

• Functional Type: Simple reset/power-on reset supervisor with single voltage channel monitoring
• Output Configuration: Open drain or open collector output with active low reset
• Package Compatibility: 8-DIP through-hole form factor (0.300", 7.62mm)
• Voltage Threshold Range: Threshold voltage must fall within acceptable operating margins (4.38V nominal)
• Reset Timeout: Minimum reset timeout specification of 100ms or greater
• Electrical Compliance: ROHS3 compliance and EAR99 classification maintained

The MIC1232NY from Microchip Technology meets these substitution criteria through identical package geometry, matching functional architecture, compatible output stage configuration, and equivalent compliance certifications. Voltage threshold variants (4.37V, 4.62V) provide operational flexibility within the supervisor function range.

Parameter Comparison

Engineering Selection Recommendations

The MIC1232NY is a direct functional equivalent for X4163PZ replacement applications. Both devices maintain ROHS3 compliance and EAR99 classification, ensuring regulatory consistency. The MIC1232NY offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), providing broader environmental applicability. The longer reset timeout specification (250ms minimum versus 100ms minimum) accommodates applications requiring extended power-on sequencing intervals. Active product status of the MIC1232NY ensures long-term availability and supply chain continuity, addressing the obsolescence constraint of the X4163PZ.

Frequently Asked Questions (FAQ)

Q: Can the MIC1232NY directly replace the X4163PZ in existing designs?

A: Yes. Both devices share identical 8-DIP package geometry, matching pinout compatibility, and equivalent open drain/open collector output configuration. Voltage threshold values (4.37V and 4.62V for MIC1232NY versus 4.38V for X4163PZ) fall within acceptable supervisor operating margins for single-channel voltage monitoring applications.

Q: What are the differences in reset timeout specifications?

A: The X4163PZ specifies 100ms minimum reset timeout, while the MIC1232NY specifies 250ms minimum. The longer timeout in the MIC1232NY provides extended power-on reset duration, suitable for systems requiring additional stabilization time during power sequencing.

Q: Does the extended operating temperature range of the MIC1232NY affect substitution suitability?

A: No. The MIC1232NY operating range (-40°C to 85°C) encompasses the X4163PZ range (0°C to 70°C). Extended temperature capability represents an enhancement for applications operating outside the original X4163PZ specifications.

Q: Are packaging and mounting considerations identical between these devices?

A: Yes. Both devices utilize 8-DIP through-hole packaging with 0.300" (7.62mm) body width. Pin spacing, lead configuration, and mounting methodology are equivalent, enabling direct socket compatibility.

Q: What compliance certifications apply to both devices?

A: Both the X4163PZ and MIC1232NY maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and EAR99 export classification. Regulatory and environmental compliance requirements are satisfied by either device.