FUJITSU SEMICONDUCTOR DATA SHEET
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DS04-29106-2E
LONG PERIOD TIMER The Fujitsu MB4214 is designed for a long period timer. It contains oscillator, divider (13 stages of flip-flop), output circuit, power supply circuit and comparator (2-ch). Arbitrary period is set by external resistor RT, capacitor CT and VS input voltage.
• Time adjustable: 500ms to 100hours • Oscillator period is controlled by VS input voltage • Free running oscillation is achieved
• On-chip low power IIL (Integrated Injection Logic) divider • On-chip zener diode to keep stability • On-chip two-pair of comparators
• Timer output level: TTL level (open collect...