Analog Devices Inc. ADM6316CY29ARJ-RL7

Overview

ADM6316CY29ARJ-RL7 from Analog Devices is a supervisory circuit with integrated watchdog timer and manual reset input, designed for microprocessor supply voltage monitoring and code execution integrity assurance. It features a 2.93 V reset threshold (±2.5% over −40°C to +85°C), 140 ms minimum reset timeout, 1.6 s typical watchdog timeout, push-pull active-low RESET output, and operates from 1 V to 5.5 V supply. It is used in embedded controllers where reliable power-on reset and fault recovery are critical.

For engineers reviewing the ADM6316CY29ARJ-RL7 datasheet, ADM6316CY29ARJ-RL7 pinout, ADM6316CY29ARJ-RL7 application, or ADM6316CY29ARJ-RL7 equivalent, this page delivers verified specifications, functional context, package mapping, real-world use cases, and validated alternative options - all aligned to the exact ordering variant and its documented electrical behavior.

Technical Context

The ADM6316CY29ARJ-RL7 implements a precision bandgap-based reset threshold detector with 40 ppm/°C temperature coefficient and 3 mV hysteresis, ensuring stable trip points across industrial temperature range. Its watchdog timer clears on any WDI logic transition (≥50 ns pulse width) and asserts reset if un-serviced for 1.6 s (typical), supporting fail-safe recovery in firmware-stuck scenarios.

It integrates internal MR pull-up (52 kΩ), glitch rejection on MR (100 ns), and guarantees valid RESET output down to VCC = 1 V. The push-pull active-low RESET stage sinks up to 1.2 mA at VCC ≥ 2.7 V and sources 500 µA while maintaining 0.8 × VCC high-level output - enabling direct interface with standard CMOS inputs without external components.

Key Specifications

Pinout & Package

ADM6316CY29ARJ-RL7 is housed in a 5-lead SOT-23 (RJ-5) package per JEDEC MO-178-AA, with 1.3 mm max height and 2.8–3.0 mm body length - optimized for space-constrained PCB layouts in portable and industrial control modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supervisory circuit applications.

Compared with ADM6316CY29ARJ-RL7, ADM6316CY29ARJZ-R7 offers identical supervision performance with RoHS-compliant labeling and standard reel packaging, while TPS3808G33DBVR trades watchdog/manual reset capability for higher reset accuracy and lower quiescent current - making it a functional subset rather than drop-in replacement.

Availability

ADM6316CY29ARJ-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, medical infusion pumps, smart energy meters, and automotive body control modules requiring stable component supply with guaranteed long-term sourcing.

Supply support for ADM6316CY29ARJ-RL7 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.

The ADM6316 family is part of Analog Devices' precision power supervision portfolio, engineered specifically for microprocessor-based systems needing simultaneous voltage monitoring, watchdog protection, and manual reset - with emphasis on industrial temperature reliability and ultra-low power.

FAQ

What is the exact reset threshold voltage of the ADM6316CY29ARJ-RL7?

The ADM6316CY29ARJ-RL7 has a nominal reset threshold of 2.93 V, specified as 2.857 V (min) to 3.000 V (max) over the full industrial temperature range (−40°C to +85°C), with ±2.5% tolerance and 40 ppm/°C temperature coefficient - confirmed in Table 5 of the Rev. I datasheet.

Does the ADM6316CY29ARJ-RL7 include a watchdog timer, and what is its timeout value?

Yes, the ADM6316CY29ARJ-RL7 includes an integrated watchdog timer with a typical timeout of 1.6 seconds (Y-suffix), corresponding to min/typ/max values of 1.12 s / 1.6 s / 2.24 s. This is explicitly defined in Table 7 and the Ordering Guide entry for ADM6316CY29ARJ-RL7.

What type of RESET output does the ADM6316CY29ARJ-RL7 feature, and what are its drive capabilities?

The ADM6316CY29ARJ-RL7 features a push-pull active-low RESET output. It sinks up to 1.2 mA at VCC ≥ 2.7 V (VOL ≤ 0.3 V) and sources 500 µA while maintaining VOH ≥ 0.8 × VCC - enabling direct connection to standard CMOS inputs without external pull-up resistors.

Is manual reset supported on the ADM6316CY29ARJ-RL7, and how is it implemented?

Yes, the ADM6316CY29ARJ-RL7 supports manual reset via Pin 3 (MR), an active-low input with an internal 52 kΩ pull-up resistor. A ≥1 µs low pulse forces reset; the pin rejects noise spikes ≤100 ns and requires no external components for basic push-button implementation.

What package and environmental rating does the ADM6316CY29ARJ-RL7 use?

The ADM6316CY29ARJ-RL7 is packaged in a 5-lead SOT-23 (RJ-5) per JEDEC MO-178-AA, rated for industrial temperature operation (−40°C to +85°C), and supplied on a 3,000-piece RoHS-compliant tape-and-reel (RL7 designation confirms lead-free and halogen-free compliance).