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| PartNumber | BU4238FVE-TR | BU4238F-TR | BU4238FTR |
| Description | Supervisory Circuits LOW VOLT DETECT VOLT 4.0V | Supervisory Circuits LOW VOLT DETECT VOLT 4.0V | Processor Supervisors |
| Manufacturer | ROHM Semiconductor | ROHM Semiconductor | - |
| Product Category | Supervisory Circuits | Supervisory Circuits | - |
| RoHS | Y | Y | - |
| Type | Voltage Detectors | Voltage Monitors | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | HVSOF-5 | SOP-4 | - |
| Threshold Voltage | 3.8 V | 3.8 V | - |
| Number of Inputs Monitored | 1 Input | - | - |
| Output Type | Open Drain | - | - |
| Manual Reset | No Manual Reset | - | - |
| Watchdog Timers | No Watchdog | - | - |
| Battery Backup Switching | No Backup | - | - |
| Reset Delay Time | Adjustable | - | - |
| Supply Voltage Max | 7 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Accuracy | 1 % | - | - |
| Series | BU42(43)xxFVE | BU42(43)xxF | - |
| Packaging | Reel | Reel | - |
| Brand | ROHM Semiconductor | ROHM Semiconductor | - |
| Operating Supply Current | 550 nA | - | - |
| Pd Power Dissipation | 210 mW | - | - |
| Product Type | Supervisory Circuits | Supervisory Circuits | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Supply Voltage Min | 0.9 V | - | - |
| Part # Aliases | BU4238FVE | BU4238F | - |