Analog Devices Inc. ADM6384YKS29D3Z-R7

Overview

ADM6384YKS29D3Z-R7 from Analog Devices is a precision microprocessor supervisory circuit in a 4-lead SC70 package, monitoring VCC with a fixed 2.93 V reset threshold and 140 ms minimum reset timeout. It delivers active-low push-pull RESET output valid down to VCC = 1 V, features manual reset (MR) input with 52 kΩ internal pull-up, and consumes only 4–7 µA at 1.8–2.5 V - ideal for low-power portable microcontroller systems requiring reliable brownout protection.

For engineers reviewing the ADM6384YKS29D3Z-R7 datasheet, ADM6384YKS29D3Z-R7 pinout, ADM6384YKS29D3Z-R7 application, or ADM6384YKS29D3Z-R7 equivalent, key selection criteria include guaranteed reset validity below 1 V, glitch-immune MR input with 100 ns rejection, temperature-stable 60 ppm/°C threshold drift, and compatibility with wide VCC range (1–5.5 V) in automotive-grade −40°C to +125°C operation.

Technical Context

The ADM6384YKS29D3Z-R7 implements a precision bandgap-based voltage reference and comparator architecture to detect VCC falling below 2.93 V ±70 mV, with built-in hysteresis of 2×VTH (≈5.86 mV). Its reset generator enforces a fixed 140 ms minimum assertion time after VCC recovery or MR release, ensuring stable processor initialization.

It integrates on-chip debounce and noise immunity on the MR input, rejecting transients ≤100 ns and supporting external RC filtering. The push-pull RESET output drives low to 0.3 V at 80 µA (VCC ≥1 V) and supports sinking up to 3.2 mA at 4.5 V, eliminating need for external pull-down resistors in most designs.

Key Specifications

Pinout & Package

ADM6384YKS29D3Z-R7 is housed in a 4-lead SC70 (KS-4) package: 2.20 mm × 1.35 mm × 0.90 mm body, 0.65 mm lead pitch, coplanarity ≤0.10 mm. Pin 1 is marked by a dot; top view orientation places GND (Pin 1), RESET (Pin 2), MR (Pin 3), and VCC (Pin 4) in counter-clockwise order.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326UT29D3+T and TPS3808G33DBVR, ADM6384YKS29D3Z-R7 offers tighter threshold accuracy at 2.93 V, lower 4 µA supply current at 1.8 V, and smallest SC70 footprint - making it optimal for space-constrained, battery-sensitive designs requiring exact 2.93 V trip point.

Availability

ADM6384YKS29D3Z-R7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, portable medical sensors, and smart energy meters requiring stable component supply across extended temperature and long product lifecycles.

Supply support for ADM6384YKS29D3Z-R7 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 ADM6384 belongs to Analog Devices' Simple Reset Supervisory IC product line, designed specifically for robust, low-power voltage monitoring in microprocessor-based systems operating across extreme temperatures and noisy environments.

FAQ

What is the exact reset threshold voltage of ADM6384YKS29D3Z-R7?

The ADM6384YKS29D3Z-R7 has a nominal reset threshold of 2.93 V, with a guaranteed range of 2.85 V to 3.00 V at TA = −40°C to +125°C. This value is factory-trimmed and specified in Table 1 of the Rev. E datasheet under "ADM6384x29x" row. The device maintains this accuracy with a temperature coefficient of 60 ppm/°C, ensuring stability across its full operating range.

Does ADM6384YKS29D3Z-R7 support operation below 1.8 V supply?

Yes, ADM6384YKS29D3Z-R7 operates down to VCC = 1 V, and its RESET output remains valid and actively driven low at that voltage. At 1.8 V, typical supply current is 4 µA (min) to 7 µA (max); at 1.0 V, the device still asserts RESET correctly but quiescent current drops further. Absolute maximum rating confirms VCC down to −0.3 V, though functional operation begins at 1 V.

What is the function of the MR pin on ADM6384YKS29D3Z-R7?

The MR (Manual Reset) pin on ADM6384YKS29D3Z-R7 is an active-low input with a 52 kΩ internal pull-up resistor. Driving MR low for ≥1 µs forces the RESET output active, independent of VCC level. After release, RESET remains asserted for the full 140 ms timeout period. This enables push-button reset or logic-controlled system restart without external bias components.

Can ADM6384YKS29D3Z-R7 replace a 3.0 V reset supervisor in existing designs?

Yes - ADM6384YKS29D3Z-R7's 2.93 V threshold provides 2.3% headroom below 3.0 V nominal supplies, matching common brownout margins for 3.0 V systems. Its 140 ms timeout, SC70 footprint, and push-pull output make it a drop-in replacement where the original design tolerates ±70 mV threshold variation and does not require open-drain output.

Is ADM6384YKS29D3Z-R7 RoHS compliant and halogen-free?

Yes, ADM6384YKS29D3Z-R7 is RoHS compliant (indicated by the "Z" suffix) and meets Analog Devices' Material Declaration standards, including halogen-free packaging. The "R7" suffix denotes 3,000-piece RoHS-compliant reel packaging, and the device conforms to JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/60% RH.