Diodes Incorporated PT7M6714CUEX

Overview

PT7M6714CUEX from Pericom (now part of Diodes Incorporated) is a quad-voltage supervisor IC with integrated 140ms reset timeout, three adjustable power-fail comparators (PFI1–PFI3), and one fixed V_CC-monitored active-low open-drain RESET output. It operates from 2.0V to 5.5V supply, consumes 20μA typical current, supports −40°C to +85°C operation, and targets multi-rail systems requiring reliable power sequencing and brownout detection in servers and networking equipment.

For engineers reviewing the PT7M6714CUEX datasheet, PT7M6714CUEX pinout, PT7M6714CUEX application, or PT7M6714CUEX equivalent, key selection criteria include its 140ms minimum reset timeout, 0.623V internal reference for PFI inputs, MSOP-10 package compatibility, and support for 5%/10% supply tolerance thresholds on V_CC monitoring.

Technical Context

The PT7M6714CUEX implements four independent comparator channels: one dedicated V_CC monitor with factory-trimmed −10% threshold (2.85V to 3.00V at 3.3V nominal), and three high-impedance PFI inputs each referenced to a 0.623V internal bandgap. Each PFI input requires an external resistor divider to scale higher supply voltages down to the 0.62V reference level.

Its RESET output integrates undervoltage lockout (UVLO) and manual reset (MR) logic with 200ns MR-to-RESET delay and 100ns glitch rejection. The 140ms minimum reset timeout is internally generated and temperature-stable, eliminating external RC timing components.

Key Specifications

Pinout & Package

PT7M6714CUEX is housed in a lead-free, RoHS-compliant MSOP-10 package (3.0mm × 3.0mm footprint, 0.5mm pitch), optimized for space-constrained PCB layouts in telecom and server applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-voltage supervisor applications.

Compared with TPS3307-33D and MAX6816CUA+, PT7M6714CUEX uniquely delivers three independently adjustable power-fail monitors plus a timed reset in a single MSOP-10 device, reducing component count and interconnect complexity in multi-rail embedded systems.

Availability

PT7M6714CUEX is available at Aetrix Electronics and suitable for server power sequencing, network switch supervision, and industrial PLC backplane applications requiring stable component supply and long-term lifecycle support.

Supply support for PT7M6714CUEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated acquired Pericom Semiconductor in 2017, integrating its high-performance timing, interface, and power management portfolio into a broad analog and mixed-signal solutions provider.

The PT7M6714CUEX belongs to Pericom's legacy multi-voltage supervisor product line, designed specifically for robust power integrity monitoring in telecom infrastructure, enterprise computing, and industrial control systems.

FAQ

What is the exact V_CC reset threshold for PT7M6714CUEX?

The PT7M6714CUEX is the −10% variant for 3.3V nominal supply, with a guaranteed V_CC reset threshold range of 2.85V (min) to 3.00V (max) at −40°C to +85°C. This is factory-trimmed and does not require external calibration or adjustment.

Can PFI1, PFI2, and PFI3 monitor different supply voltages simultaneously?

Yes - each PFI input is electrically independent and references the same 0.623V internal bandgap. By using separate resistor dividers (e.g., R1/R2 for PFI1, R3/R4 for PFI2), the device can concurrently supervise 12V, 5V, and 3.3V rails with distinct trip points scaled to the 0.62V reference.

Is an external pull-up resistor required for the RESET output?

No - the RESET output has a 10μA internal pull-up to V_CC, sufficient to drive standard CMOS inputs. An external pull-up is only needed when interfacing to logic with a different supply voltage (e.g., 1.8V I/O) or when faster rise times are required under capacitive loads exceeding 20pF.

How does the manual reset (MR) interact with the 140ms timeout?

When MR is pulled low, RESET asserts immediately. After MR returns high, RESET remains low for ≥140ms regardless of V_CC status - this timeout is fully internal and independent of supply voltage recovery timing, ensuring deterministic reset duration.