MC34064P-5RP

Supervisors Overview

The MC34064P-5RP is an undervoltage sensing circuit from onsemi, designed for use as a reset controller in microprocessor-based systems. It operates with a supply voltage range of 1 V to 6.5 V and features a precise comparator threshold of 4.6 V at 25°C. The device utilizes a trimmed-in-package bandgap reference and includes built-in hysteresis to prevent erratic reset operation. It provides an open collector output capable of sinking over 10 mA and guarantees reset operation down to 1.0 V input with low standby current. Packaged in a TO-92-3 through-hole case, it supports adjustable reset delay times via an external capacitor.

Supervisors Feature Summary

• Features a trimmed-in-package temperature compensated reference for precise threshold accuracy
• Includes internal clamp diode for efficient discharging of the delay capacitor
• Provides open collector reset output capable of sinking significant current loads
• Operates reliably with low standby current down to 1.0 V input voltage

Supervisors Applications

• Direct monitoring of 5.0 V MPU/logic power supplies
• Reset control in microprocessor-based systems
• Low voltage detection in appliance and consumer equipment
• Automotive and industrial equipment power supervision

Supervisors Procurement Notes

Verify the specific suffix RP against official onsemi documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the TO-92-3 package. Confirm that the 4.6 V threshold aligns with system requirements. Check for any automotive-grade variants if site control changes are required. Validate operating temperature ranges against application constraints.

Supervisors Selection Notes

Select this component when a simple, economical undervoltage detector is needed for 5 V logic systems. The TO-92-3 package suits through-hole designs requiring robust mechanical mounting. Consider the open collector output capability for interfacing with various logic families. Evaluate the need for adjustable reset delays using external capacitors. Compare standby current consumption against other supervisor options for battery-sensitive applications.

Supervisors Part Context

The MC34064 series comprises undervoltage sensing circuits designed for reliable reset generation. Variants include different packages such as SOIC-8 and TSOP-5, and thresholds like 4.33 V or 4.59 V. The MC34064P-5RP specifically denotes the TO-92-3 through-hole package version with a 4.6 V threshold. This family offers cost-effective solutions for basic power monitoring tasks in standard commercial environments.

Supervisors Replacement Considerations

MC34064P-5G: Same function and threshold in TO-92-3 package; verify suffix differences. MC34064D-5G: Similar electrical characteristics but in SOIC-8 surface mount package. MC34164P-5G: Higher maximum supply voltage (10 V) and lower quiescent current; requires pinout verification.