CF5741BA View Datasheet(PDF) - Nippon Precision Circuits

Part Name

Description

MFG CO.

CF5741BA

Analog Clock CMOS IC

Nippon Precision Circuits  

1 2 3 4 5 6 7

CF5741 series

FUNCTIONAL DESCRIPTION

Motor Output

Stepping motor drive type

tPW

OUT1

(Active High)

tPW

OUT2

(Active High)

tCY

1sec

tCY

1sec

tCY : Needle period

tPW : Pulse width

Sweeping motor drive type

OUT1

OUT2

tCY

125msec

tCY

125msec

tCY : Needle period

tPW : Pulse width

Input Debounce Function (AI ,RST/TC)

Setting bouncing delay time prevents the circuit from the erroneous operation by AI and RST/TC input

bouncing.

tON < 62.5 msec : Alarm and reset input is ignored.

62.5 ≤ tON ≤ 125 msec : Alarm and reset input is ignored or accepted.

tON > 125 msec : Alarm and reset input is accepted.

tON

AI , RST/TC

(Active Low)

NIPPON PRECISION CIRCUITS—4

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