component
MAX6303CSA+
Public Made by Adomby adom
Analog Devices Inc./Maxim Integrated Supervisor And Reset ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX6303CSA+
Analog Devices Inc./Maxim Integrated · Supervisor And Reset ICs · SOIC-8
MAX6303CSA+ from Analog Devices Inc./Maxim Integrated, in a SOIC-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 | RESET IN | input | High-impedance reset comparator input connected to an external resistor divider to set the threshold, VRST = 1.22 x (R1 + R2)/R2 (1.22V nominal input threshold). |
| 2 | GND | power_in | Ground. |
| 3 | SRT | passive | Set reset-timeout input; a capacitor to ground sets tRP = 2.67 x CSRT (CSRT in pF, tRP in µs). |
| 4 | SWT | passive | Set watchdog-timeout input; a capacitor to ground sets tWD = 2.67 x CSWT (pF to µs), and connecting it to ground disables the watchdog. |
| 5 | WDS | input | Watchdog-select input; GND selects normal mode and VCC selects extended mode with the timeout multiplied by 500. |
| 6 | WDI | input | Watchdog input; a rising or falling transition must occur within the watchdog timeout period or a reset pulse occurs. |
| 7 | RESET | output | Push-pull active-low reset output (MAX6303) that goes low when VIN drops below VRST, stays low for the reset timeout period after VIN exceeds VRST, and pulses on watchdog timeout; guaranteed low at VCC of 1V or above. |
| 8 | VCC | power_in | Supply voltage, bypassed to ground with a 0.1µF capacitor placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package | SOIC-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 Voltage Range (MAX6303C) | VCC | 1 | 5.5 | V | MAX6301C/MAX6303C | 2 | |
| Supply Current | ICC | 4 | 7 | µA | No load | 2 | |
| Reset Input Threshold Voltage (falling) | VTH | 1.195 | 1.22 | 1.245 | V | VRESET IN falling, VCC = 5.0V | 2 |
| Reset Input Threshold Voltage (rising) | VTH | 1.24 | 1.265 | V | VRESET IN rising, VCC = 5.0V | 2 | |
| Reset Output-Voltage Low | VOL | 0.4 | V | VCC ≥ 4.5V, ISINK = 3.2mA | 2 | ||
| Reset Output-Voltage Low | VOL | 0.3 | V | VCC = 1V, ISINK = 50µA, TA = 0°C to +70°C | 2 | ||
| Reset Timeout Period | tRP | 2.8 | 4 | 5.2 | ms | CSRT = 1500pF | 2 |
| Reset Input Leakage Current | IRESET IN | -1 | 0.01 | 1 | nA | 2 | |
| WDI, WDS Input Threshold High | VIH | 0.7 | x VCC | 3 | |||
| WDI, WDS Input Threshold Low | VIL | 0.3 | x VCC | 3 | |||
| WDI Pulse Width | tWP | 30 | ns | VCC = 4.5V to 5.5V | 3 | ||
| WDI Pulse Width | tWP | 60 | ns | VCC = 2V to 4.5V | 3 | ||
| WDI, WDS Leakage Current | -1 | 1 | µA | Extended mode disabled | 3 | ||
| Watchdog Timeout Period | tWD | 2.8 | 4 | 5.2 | ms | WDS = GND, CSWT = 1500pF | 3 |
| Watchdog Timeout Period | tWD | 1.4 | 2 | 2.6 | s | WDS = VCC, CSWT = 1500pF | 3 |
| Reset Input Hysteresis | VHYST | 20 | mV | 2 | |||
| VCC to Reset Delay | tRD | 63 | µs | VCC = falling at 1mV/µs | 2 | ||
| Reset Input Pulse Width | tRI | 26 | µs | Comparator overdrive = 50mV | 2 | ||
| WDI Sink/Source Current | 70 | µA | Extended mode enabled | 3 | |||
| Supply Voltage | VCC | -0.3 | 7 | V | 2 | ||
| WDI, WDS Voltage | -0.3 | 7 | V | 2 | |||
| Input Current VCC | -20 | 20 | mA | 2 | |||
| Input Current GND | -20 | 20 | mA | 2 | |||
| Output Current RESET, RESET | -20 | 20 | mA | 2 | |||
| Operating Temperature Range | 0 | 70 | °C | MAX630_C_A | 2 | ||
| Storage Temperature Range | -65 | 160 | °C | 2 | |||
| Lead Temperature | 300 | °C | soldering, 10s | 2 | |||
| Soldering Temperature (reflow) Lead(Pb)-free | 260 | °C | Lead(Pb)-free | 2 |
CAD (KiCad official)
- Symbol:
MAX6303CSA+ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
max6303csa-etched.step/max6303csa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max6303csa.step/max6303csa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc./Maxim Integrated datasheet (12 pp, sha256
599e498038959b58, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# MAX6303CSA+
**Analog Devices Inc./Maxim Integrated** · Supervisor And Reset ICs · SOIC-8
MAX6303CSA+ from Analog Devices Inc./Maxim Integrated, in a SOIC-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 | RESET IN | input | High-impedance reset comparator input connected to an external resistor divider to set the threshold, VRST = 1.22 x (R1 + R2)/R2 (1.22V nominal input threshold). |
| 2 | GND | power_in | Ground. |
| 3 | SRT | passive | Set reset-timeout input; a capacitor to ground sets tRP = 2.67 x CSRT (CSRT in pF, tRP in µs). |
| 4 | SWT | passive | Set watchdog-timeout input; a capacitor to ground sets tWD = 2.67 x CSWT (pF to µs), and connecting it to ground disables the watchdog. |
| 5 | WDS | input | Watchdog-select input; GND selects normal mode and VCC selects extended mode with the timeout multiplied by 500. |
| 6 | WDI | input | Watchdog input; a rising or falling transition must occur within the watchdog timeout period or a reset pulse occurs. |
| 7 | RESET | output | Push-pull active-low reset output (MAX6303) that goes low when VIN drops below VRST, stays low for the reset timeout period after VIN exceeds VRST, and pulses on watchdog timeout; guaranteed low at VCC of 1V or above. |
| 8 | VCC | power_in | Supply voltage, bypassed to ground with a 0.1µF capacitor placed close to the pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package | SOIC-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 Voltage Range (MAX6303C) | VCC | 1 | | 5.5 | V | MAX6301C/MAX6303C | 2 |
| Supply Current | ICC | | 4 | 7 | µA | No load | 2 |
| Reset Input Threshold Voltage (falling) | VTH | 1.195 | 1.22 | 1.245 | V | VRESET IN falling, VCC = 5.0V | 2 |
| Reset Input Threshold Voltage (rising) | VTH | | 1.24 | 1.265 | V | VRESET IN rising, VCC = 5.0V | 2 |
| Reset Output-Voltage Low | VOL | | | 0.4 | V | VCC ≥ 4.5V, ISINK = 3.2mA | 2 |
| Reset Output-Voltage Low | VOL | | | 0.3 | V | VCC = 1V, ISINK = 50µA, TA = 0°C to +70°C | 2 |
| Reset Timeout Period | tRP | 2.8 | 4 | 5.2 | ms | CSRT = 1500pF | 2 |
| Reset Input Leakage Current | IRESET IN | -1 | 0.01 | 1 | nA | | 2 |
| WDI, WDS Input Threshold High | VIH | 0.7 | | | x VCC | | 3 |
| WDI, WDS Input Threshold Low | VIL | | | 0.3 | x VCC | | 3 |
| WDI Pulse Width | tWP | 30 | | | ns | VCC = 4.5V to 5.5V | 3 |
| WDI Pulse Width | tWP | 60 | | | ns | VCC = 2V to 4.5V | 3 |
| WDI, WDS Leakage Current | | -1 | | 1 | µA | Extended mode disabled | 3 |
| Watchdog Timeout Period | tWD | 2.8 | 4 | 5.2 | ms | WDS = GND, CSWT = 1500pF | 3 |
| Watchdog Timeout Period | tWD | 1.4 | 2 | 2.6 | s | WDS = VCC, CSWT = 1500pF | 3 |
| Reset Input Hysteresis | VHYST | | 20 | | mV | | 2 |
| VCC to Reset Delay | tRD | | 63 | | µs | VCC = falling at 1mV/µs | 2 |
| Reset Input Pulse Width | tRI | | 26 | | µs | Comparator overdrive = 50mV | 2 |
| WDI Sink/Source Current | | | 70 | | µA | Extended mode enabled | 3 |
| Supply Voltage | VCC | -0.3 | | 7 | V | | 2 |
| WDI, WDS Voltage | | -0.3 | | 7 | V | | 2 |
| Input Current VCC | | -20 | | 20 | mA | | 2 |
| Input Current GND | | -20 | | 20 | mA | | 2 |
| Output Current RESET, RESET | | -20 | | 20 | mA | | 2 |
| Operating Temperature Range | | 0 | | 70 | °C | MAX630_C_A | 2 |
| Storage Temperature Range | | -65 | | 160 | °C | | 2 |
| Lead Temperature | | | | 300 | °C | soldering, 10s | 2 |
| Soldering Temperature (reflow) Lead(Pb)-free | | | | 260 | °C | Lead(Pb)-free | 2 |
## CAD (KiCad official)
- Symbol: `MAX6303CSA+`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `max6303csa-etched.step` / `max6303csa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max6303csa.step` / `max6303csa.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Analog Devices Inc./Maxim Integrated datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max6301-max6304.pdf) (12 pp, sha256 `599e498038959b58`, retrieved 2026-10-31, 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/max6303csa-datasheet.pdf)