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CN813L
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ShangHai Consonance Elec Supervisor And Reset ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCN813L
ShangHai Consonance Elec · Supervisor And Reset ICs · SOP-8
CN813L from ShangHai Consonance Elec, in a SOP-8. 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 | MR | input | Manual reset input: a low level triggers a reset pulse, the pin has an internal pull-up so it can be left floating, and it is compatible with TTL/CMOS levels. |
| 2 | VCC | power_in | Positive supply input; the datasheet gives an operating supply range of 1.15 V to 5.5 V (absolute maximum VCC is 6.0 V). |
| 3 | GND | power_in | Ground (power supply return) input for the device. |
| 4 | PFI | input | Power-fail detection input: PFO goes low when the voltage on PFI is below the 1.22 V threshold; it may be tied to VCC or GND if unused. |
| 5 | PFO | output | Power-fail output that is low when PFI is below 1.22 V and high otherwise. |
| 6 | WDI | input | Watchdog input: if WDI stays high or low for more than 1.6 s without a transition, WDO goes low; leaving WDI floating or at high impedance disables the watchdog. |
| 7 | RESET | output | Active-high reset output: it is held high while VCC is below the reset threshold and stays high for about 200 ms (140 to 280 ms) after VCC rises above the threshold, then goes low. |
| 8 | WDO | output | Watchdog output that goes low when the 1.6 s watchdog timer times out until it is reset, and also goes low while VCC is below the reset threshold, returning high immediately once VCC exceeds it. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating supply voltage range | VCC | 1.15 | 5.5 | 伏特 | 6 | ||
| Reset threshold (CN705/707/813L) | VRES | 4.5 | 4.65 | 4.75 | 伏特 | 6 | |
| Reset pulse width | tRES | 140 | 200 | 280 | 毫秒 | 6 | |
| Watchdog timeout | tWD | 1 | 1.6 | 2.25 | 秒 | 6 | |
| WDI pulse width (VCC=5V) | tWP | 50 | 纳秒 | VCC=5V | 6 | ||
| WDI pulse width (VCC<4.5V) | tWP | 120 | 纳秒 | VCC<4.5V | 6 | ||
| WDI input high threshold | 3.5 | 伏特 | VCC=5V | 6 | |||
| WDI pull-up resistance | 125 | 250 | 500 | K | VCC>VRES | 7 | |
| WDI pull-down resistance | 88 | 175 | 350 | K | VCC>VRES | 7 | |
| Supply current (CN705/706X/813X) | IVCC | 52 | 105 | 微安 | 6 | ||
| Reset output low voltage VOL1 (VCC=5V) | VOL1 | 0.3 | 伏特 | ISINK=3.2mA, VCC=5V | 6 | ||
| Reset output low voltage VOL1 (VCC=1.2V) | VOL1 | 0.3 | 伏特 | ISINK=150uA, VCC=1.2V | 6 | ||
| Reset output high voltage VOH1 (VCC=1.2V) | VOH1 | 1 | 伏特 | ISOURCE=8uA, VCC=1.2V | 6 | ||
| WDO output low voltage | VOL2 | 0.3 | 伏特 | ISINK=3.2mA | 7 | ||
| MR pull-up current (VCC=5V) | 100 | 250 | 600 | 微安 | MR=0V, VCC=5V | 7 | |
| MR pull-up current (VCC=4V) | 60 | 152 | 360 | 微安 | MR=0V, VCC=4V | 7 | |
| MR pull-up current (VCC=3V) | 32 | 75 | 180 | 微安 | MR=0V, VCC=3V | 7 | |
| MR pull-up current (VCC=2.5V) | 20 | 44 | 105 | 微安 | MR=0V, VCC=2.5V | 7 | |
| MR pulse width (VCC=5V) | TMR | 150 | 纳秒 | VCC=5V | 7 | ||
| MR pulse width (VCC<4.5V) | TMR | 500 | 纳秒 | VCC<4.5V | 7 | ||
| MR input low threshold | 0.8 | 伏特 | VCC=5V | 7 | |||
| MR input high threshold | 2 | 伏特 | VCC=5V | 7 | |||
| MR to reset output delay (VCC=5V) | tMD | 250 | 纳秒 | VCC=5V | 7 | ||
| MR to reset output delay (VCC<4.5V) | tMD | 750 | 纳秒 | VCC<4.5V | 7 | ||
| Power-fail input threshold | VPFI | 1.184 | 1.22 | 1.256 | 伏特 | 7 | |
| PFO output low voltage | VOL3 | 0.3 | 伏特 | ISINK=3.2mA | 7 | ||
| VCC pin voltage (absolute maximum) | VCC | -0.3 | 6 | 伏特 | 6 | ||
| Other input pins voltage (absolute maximum) | -0.3 | 6 | 伏特 | 6 | |||
| VCC pin current (absolute maximum) | 20 | mA | 6 | ||||
| GND pin current (absolute maximum) | 20 | mA | 6 | ||||
| Input current (absolute maximum) | 20 | mA | 6 | ||||
| Output current (absolute maximum) | 20 | mA | 6 | ||||
| Operating temperature | TA | -40 | 85 | ℃ | 6 | ||
| Storage temperature | -65 | 150 | ℃ | 6 | |||
| Maximum junction temperature | 150 | ℃ | 6 | ||||
| Soldering temperature | 300 | ℃ | 6 | ||||
| ESD voltage (HBM) | 2 | KV | HBM | 6 | |||
| Thermal resistance, junction to ambient (SOP8) | 190 | /W | 6 | ||||
| Power-fail input current | IPFI | 0 | 纳安 | 7 |
CAD (KiCad official)
- Symbol:
CN813L - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cn813l-etched.step/cn813l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cn813l.step/cn813l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShangHai Consonance Elec datasheet (14 pp, sha256
fe7cca14ea02af6e, retrieved 2026-10-19, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).