| Part Number | UC3903Q | UC2903Q |
|---|---|---|
| Manufacturer | Unitrode | Texas Instruments |
| Category | PMIC - Supervisors | PMIC - Supervisors |
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| Product Status | Active | Obsolete |
| Type | Multi-Voltage Supervisor | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 4 | 4 |
| Voltage - Threshold | Adjustable/Selectable | Adjustable/Selectable |
| Output | Open Drain or Open Collector | Open Drain or Open Collector |
| Reset | Active Low | Active Low |
| Reset Timeout | Adjustable/Selectable | Adjustable/Selectable |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-LCC (J-Lead) | 20-LCC (J-Lead) |
| Supplier Device Package | 20-PLCC (8.96x8.96) | 20-PLCC (9x9) |