PST621中文资料三美数据手册PDF规格书

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 microcomputer 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.

特性 Features

1. Low current consumption

2. Capacitors (super capacitor, large capacity chemical capacitor) are used for back-up power supply, lowering system cost

3. Stable 1-chip microcomputer crystal oscillator rise time maintained with the built-in pulse shaver.

4. In addition to power outage detection for main power supply (+5V), there are built-in pins to detect AC power supply and +5V power supply primary side

5. Reset signal output by back-up power supply (super capacitor, large capacity chemical capacitor) detection

Applications

1. VCR

2. Audio equipment

3. Communications equipment

4. Rice cookers, etc.