Datasheet Details
| Part number | PST621 |
|---|---|
| Manufacturer | Mitsumi Electronics |
| File Size | 226.75 KB |
| Description | (PST620 / PST621) System Reset |
| Datasheet | PST621 PST620 Datasheet (PDF) |
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Overview: MITSUMI System Reset (with battery back-up) PST620, 621 System Reset (with battery back-up) Monolithic IC PST620, 621 Outline These ICs are part of the regular series of back-up ICs, and use capacitors (super capacitor, large capacity chemical capacitor) as back-up power supply. They control 1-chip microputer high-speed, low-speed, and stand-by modes (MNI control). These ICs also are capable of controlling data save in EPROM and other nonvolatile memories during power outage.
This datasheet includes multiple variants, all published together in a single manufacturer document.
| Part number | PST621 |
|---|---|
| Manufacturer | Mitsumi Electronics |
| File Size | 226.75 KB |
| Description | (PST620 / PST621) System Reset |
| Datasheet | PST621 PST620 Datasheet (PDF) |
|
|
|
PST620 Pin No.
1 2 3 4 5 6 7 8 Pin name VAC VCC1 VCC2 TC RE PSCONT CE GND Function Has +2.0V detection voltage to detect AC power supply and stable power supply primary side, for quick power outage detection.
+5V main power supply Back-up power supply (back-up capacitor connected) Pulse width setting pin for pulse shaver (capacitor and resistor connected) Reset output Pulse shaver ON/OFF switching High : OFF Low : ON Chip enable signal output GND MITSUMI System Reset (with battery back-up) PST620, 621 PST621 Pin No.
| Part Number | Description |
|---|---|
| PST620 | (PST620 / PST621) System Reset |
| PST623 | System Reset |
| PST611 | System Reset Monolithic IC PST611 |
| PST35XX | (PST35XX / PST36XX) IC for CMOS System Reset |
| PST36XX | (PST35XX / PST36XX) IC for CMOS System Reset |
| PST37xxU | IC for CMOS System Reset Monolithic IC |
| PST38xxU | IC for CMOS System Reset Monolithic IC |
| PST90xx | IC for System Reset Monolithic IC |
| PST92xx | IC for System Reset Monolithic IC |