MB4214中文資料富士通數(shù)據(jù)手冊PDF規(guī)格書

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 collector)

? Plastic 17-pin ZIP Package (Suffix: -PSZ)