Analog Devices Inc. ADM6384YKS46D2Z-R7

Overview

ADM6384YKS46D2Z-R7 from Analog Devices is a precision microprocessor supervisory circuit in a 4-lead SC70 package, monitoring VCC supply voltage with a fixed 4.63 V reset threshold and 20 ms minimum reset timeout. It features push-pull active-low RESET output, manual reset (MR) input with internal 52 kΩ pull-up, and guaranteed valid reset assertion down to VCC = 1 V. Used in embedded controllers and portable instrumentation for reliable power-on and brownout reset control.

For engineers reviewing the ADM6384YKS46D2Z-R7 datasheet, ADM6384YKS46D2Z-R7 pinout, ADM6384YKS46D2Z-R7 application, or ADM6384YKS46D2Z-R7 equivalent, key selection criteria include reset threshold accuracy (±1.3% at 4.63 V), low quiescent current (7 µA typical at 3.6 V), glitch-immune MR input (100 ns rejection), and operation across −40°C to +125°C.

Technical Context

The ADM6384YKS46D2Z-R7 implements a precision bandgap-based voltage reference and comparator to detect VCC falling below 4.63 V, triggering an active-low reset pulse with 20 ms minimum duration. Its internal debounce logic ensures MR input pulses as short as 1 µs reliably initiate reset, while integrated glitch immunity rejects transients ≤100 ns on MR and suppresses fast VCC dips per Figure 10.

Reset assertion remains valid during VCC decay to 1 V due to rail-to-rail output stage design; the push-pull driver sinks up to 3.2 mA at VCC ≥ 4.5 V (VOL = 0.4 V). Temperature coefficient of reset threshold is 60 ppm/°C, ensuring stable trip point across industrial temperature range.

Key Specifications

Pinout & Package

ADM6384YKS46D2Z-R7 is housed in a 4-lead SC70 (KS-4) package, measuring 2.20 mm × 1.35 mm × 0.95 mm, with gull-wing leads and 0.65 mm pitch. The compact footprint suits space-constrained portable and high-density PCB designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6384XR26D2+T and TPS3808G33DBVR, ADM6384YKS46D2Z-R7 delivers exact 4.63 V detection in the smallest SC70 package with lowest quiescent current-critical for 5 V industrial controllers where threshold accuracy and board area are non-negotiable.

Availability

ADM6384YKS46D2Z-R7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and portable medical instruments requiring stable component supply and long-term lifecycle support.

Supply support for ADM6384YKS46D2Z-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.

The ADM6384 belongs to Analog Devices' Simple Reset Supervisory IC product line, engineered for deterministic power-on reset, brownout protection, and manual reset integration in resource-constrained embedded systems.

FAQ

What is the exact reset threshold voltage of ADM6384YKS46D2Z-R7?

The ADM6384YKS46D2Z-R7 has a nominal reset threshold of 4.63 V, with a guaranteed range of 4.51 V to 4.74 V at TA = −40°C to +125°C. This value is factory-trimmed and specified in Table 1 of the Rev. E datasheet under "ADM6384x46x" row. The part number suffix "46" explicitly denotes this 4.63 V variant.

Does ADM6384YKS46D2Z-R7 support operation down to 1 V VCC?

Yes, ADM6384YKS46D2Z-R7 guarantees valid active-low RESET output down to VCC = 1 V, as confirmed in the "RESET OUTPUT VOLTAGE" section (VOL = 0.3 V at ISINK = 80 µA, VCC ≥ 1.0 V). This ensures reliable reset assertion during deep brownout events before full power collapse.

What is the function of the MR pin on ADM6384YKS46D2Z-R7?

The MR (Manual Reset) pin on ADM6384YKS46D2Z-R7 is an active-low input with a built-in 52 kΩ pull-up resistor. Driving MR low for ≥1 µs initiates a reset pulse with the configured 20 ms timeout. Its integrated debounce and 100 ns glitch rejection eliminate need for external RC filtering in most push-button implementations.

Is ADM6384YKS46D2Z-R7 RoHS compliant and lead-free?

Yes, ADM6384YKS46D2Z-R7 is RoHS compliant and lead-free, as indicated by the "Z" suffix in the part number and confirmed in the Ordering Guide (page 11). It meets JEDEC J-STD-020 moisture sensitivity level 1 and is qualified for Pb-free reflow soldering at 260°C for 40 seconds.

What package type and dimensions does ADM6384YKS46D2Z-R7 use?

ADM6384YKS46D2Z-R7 uses the 4-lead SC70 (KS-4) package, with outline dimensions of 2.20 mm × 1.35 mm × 0.95 mm and 0.65 mm lead pitch. Pin 1 indicator is marked on the top surface, and coplanarity is controlled to ≤0.10 mm per JEDEC MO-203.