# ADM823YYKSZ-R7

**Analog Devices** · Monitors & Reset Circuits · SC-70-5

ADM823YYKSZ-R7 from Analog Devices, in a SC-70-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RESET | output | Active low, push-pull reset output, asserted whenever VCC is below the reset threshold VTH (also on MR low or watchdog timeout). |
| 2 | GND | power_in | Ground. |
| 3 | MR | input | Active low manual reset input that generates a reset when forced low for at least 1 µs, with a 52 kΩ internal pull-up. |
| 4 | WDI | input | Watchdog input that generates a reset if the pin remains low or high for the watchdog timeout; the timer is cleared by a logic transition or a reset. |
| 5 | VCC | power_in | Power supply voltage being monitored (absolute maximum −0.3 V to +6 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SC-70-5 |
| Category | Power Supply Chip |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC Operating Voltage Range | VCC | 1 |  | 5.5 | V | TA = 0°C to 70°C | 3 |
| VCC Operating Voltage Range (full temp) | VCC | 1.2 |  |  | V | TA = TMIN to TMAX | 3 |
| Supply Current ADM82xT/S/R/Z/Y | ICC |  | 5 | 12 | µA | WDI and MR unconnected | 3 |
| Reset Threshold ADM82xY | VTH | 2.16 | 2.19 | 2.22 | V | TA = 25°C | 3 |
| Reset Threshold ADM82xY full temp | VTH | 2.13 |  | 2.25 | V | TA = TMIN to TMAX | 3 |
| Reset Threshold Temperature Coefficient |  |  | 40 |  | ppm/°C |  | 3 |
| Reset Threshold Hysteresis ADM82xT/S/R/Z/Y |  |  | 5 |  | mV |  | 3 |
| Reset Timeout Period | tRP | 140 | 200 | 280 | ms |  | 3 |
| VCC to Reset Delay | tRD |  | 40 |  | µs | VTH − VCC = 100 mV | 3 |
| RESET Output Voltage low | VOL |  |  | 0.3 | V | VCC = VTH min, ISINK = 1.2 mA, ADM82xT/S/R/Z/Y | 3 |
| RESET Output Voltage low at VCC = 1 V | VOL |  |  | 0.3 | V | TA = 0°C to 70°C, VCC = 1 V, VCC falling, ISINK = 50 µA | 3 |
| RESET Output Voltage high | VOH | 0.8 |  |  | ×VCC | VCC = VTH max, ISOURCE = 30 µA, ADM82xT/S/R/Z/Y | 3 |
| Watchdog Timeout Period | tWD | 1.12 | 1.6 | 2.4 | sec |  | 4 |
| WDI Pulse Width |  | 50 |  |  | ns | VIL = 0.4 V, VIH = 0.8 × VCC | 4 |
| WDI Input Threshold VIH | VIH | 0.7 |  |  | ×VCC |  | 4 |
| WDI Input Threshold VIL | VIL |  |  | 0.3 | ×VCC |  | 4 |
| WDI Input Current high |  |  | 120 | 160 | µA | VWDI = VCC, time average | 4 |
| WDI Input Current low |  | -20 | -15 |  | µA | VWDI = 0 V, time average | 4 |
| MR Input Threshold high |  | 0.7 |  |  | ×VCC |  | 4 |
| MR Input Threshold low |  |  |  | 0.3 | ×VCC |  | 4 |
| MR Input Pulse Width |  | 1 |  |  | µs |  | 4 |
| MR Glitch Rejection |  |  | 100 |  | ns |  | 4 |
| MR Pull-Up Resistance |  | 35 | 52 | 75 | kΩ |  | 4 |
| MR to Reset Delay |  |  | 500 |  | ns |  | 4 |
| VCC | VCC | -0.3 |  | 6 | V | TA = 25°C | 5 |
| Output Current (RESET) |  |  |  | 20 | mA | TA = 25°C | 5 |
| All Other Pins |  | -0.3 |  |  | V | to (VCC + 0.3 V) | 5 |
| Operating Temperature Range |  | -40 |  | 125 | °C |  | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 5 |
| Lead Temperature Soldering (10 sec) |  |  |  | 300 | °C |  | 5 |
| θJA Thermal Impedance SC70 | θJA |  | 146 |  | °C/W | SC70 | 5 |

## CAD (KiCad official)

- Symbol: `ADM823YYKSZ-R7`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `adm823yyksz-r7-etched.step` / `adm823yyksz-r7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adm823yyksz-r7.step` / `adm823yyksz-r7.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/ADM823_824_825.pdf) (12 pp, sha256 `8a8e4ed5fab4f9c4`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/adm823yyksz-r7-datasheet.pdf)