CF5741BB datasheet(1/7 Pages) NPC

No. de pieza	CF5741BB

Descripción Electrónicos	Analog Clock CMOS IC

PDF	7 Pages

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Fabricante Electrónico	NPC [Nippon Precision Circuits Inc]

Página de inicio	http://www.npc.co.jp/en

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CF5741 series

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

Analog Clock CMOS IC

OVERVIEW

The CF5741 series are analog clock driver ICs

using 32.768kHz reference frequency of crystal

oscillator. Some versions in accordance with the

combinations of each motor drive and alarm output

characteristics can provide a wide range of applica-

tions for various clock speciﬁcations.

FEATURES

s

Operating voltage 1.2 to 2.0V

s

Low current 1.2

µA (typ) / 1.5V

s

Built-in oscillator circuits (32.768 kHz)

s

Built-in crystal oscillator capacitors (CG, CD)

s

Motor output

Various motor output

s

Alarm output

Various alarm output

s

Reset function

s

Input debounce function (AI, RST/TC)

s

Chip form (CF5741

××)

PINOUT

(Top View)

SERIES LINEUP

ORDERING INFORMATION

Chip size : 1.22

× 1.20 mm

Chip thickness : 400

± 30 µm

Pad size : 100

× 100 µm

Reverse side : VDD level

1

XT

VSS

(0,0)

X

Y

SA5741

2

3

4

5

10

9

8

7

6

XTN

AO2/F

AO1

VDD

OUT2

AI

RST/TC

OUT1

CF5741AA

CF5741AB

CF5741BA

CF5741BB

Built-in capacitor

XT terminal CG (pF)

0

25

0

27

XTN terminal CD (pF)

25

Reset input

Active level

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Motor output

Active level

High

Hand drive cycle tCY (sec)

1111

Pulse width tPW (msec)

31.25

46.875

Alarm input

Active level

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Low

(Pull-up resistor)

Test function (1/2VDD)

Yes

Alarm output

Terminal

AO1

AO2/F

AO1

AO2/F

AO1

AO2/F1

1. AO is complete reverse phase of AO. (even output is inactive.)

AO1

AO2/F1

Active level

High

Low

High

Low

Fundamental frequency fPW (Hz)

2048

32

2048

32

2048

Modulation frequency fCY (Hz)

8

+ 1

−

8

+ 1

−

8

+ 18 + 18 + 18 + 1

Device

Package

CF5741

××

Chip form

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CF5741BB Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc

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