CN825R

@@ -0,0 +1,47 @@+# CN825R++**ShangHai Consonance Elec** · Supervisor and Reset ICs · SOT-23-6++CN825R from ShangHai Consonance Elec, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | /MR | input | Active-low manual reset input. Pulling this pin low triggers a reset pulse on both reset outputs. Internally pulled up to VCC via a ~50 kΩ resistor (38-62 kΩ), so it can be left floating, driven by CMOS, or driven by open-drain/open-collector logic. Minimum pulse width 1 µs; MR-to-reset delay ≤500 ns. |+| 2 | GND | power_in | Ground / negative supply return for the device. |+| 3 | /RESET | output | Active-low reset output. Driven low when VCC is below the 2.63 V reset threshold, when /MR is low, or when the watchdog times out. After the condition clears, /RESET stays low for at least 140 ms (typ. 200 ms) before returning high. VOL = 0.3 V max at 3.2 mA sink (150 µA at VCC = 1.1 V). |+| 4 | VCC | power_in | Positive supply input, 1.1 V to 6.5 V operating range. This pin is continuously monitored and compared to the internal 2.63 V (CN825R) reset threshold. Supply current 2.7 µA typ. below threshold, 16 µA typ. above threshold. Abs max 6.5 V, 20 mA. |+| 5 | RESET | output | Active-high reset output. Driven high when VCC is below the reset threshold, when /MR is low, or when the watchdog times out. After the condition clears, RESET stays high for at least 140 ms (typ. 200 ms) before returning low. VOH = VCC−1 V min at 1 mA source (1.0 V min at VCC = 1.1 V, 8 µA). |+| 6 | WDI | input | Watchdog input. If WDI is held high or low for more than the watchdog timeout (typ. 1.6 s, min 0.95 s, max 2.25 s) without a logic transition, the watchdog expires and asserts both reset outputs for ≥140 ms. Input high threshold 0.75·VCC, low threshold 0.25·VCC; input current ±50 nA; minimum detectable pulse width 50 ns. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `CN825R`+- `CN825RCN825S`+- `CN825RCN825Z`++## CAD (KiCad official)++- Symbol: `CN825R`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn825r-datasheet.pdf) (9 pp, sha256 `4c8e82b7435776f0`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/cn825r-datasheet.pdf)

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