CF5761MB datasheet(5/10 Pages) NPC

Part #	CF5761MB

Description	CMOS Analog Clock IC with Alarm Function

Download	10 Pages

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Manufacturer	NPC [Nippon Precision Circuits Inc]

Direct Link	http://www.npc.co.jp/en

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5 / 10 page

CF5761 series

SEIKO NPC CORPORATION —5

3.0V operation

Ta = 25

°C, VSS = 0V, VDD = 3.0V, X’tal (f0 = 32.768kHz, CI = 35kΩ max, CG = 20pF) unless otherwise noted

Measurement Circuit

Parameter

Symbol

Condition

Rating

Unit

min

typ

max

Operating voltage

VDD

1.2

3.0

3.6

V

Oscillator startup time1

1. Measured using standard circuits.

t1

VDD = 2.4V

–

5.0

s

Frequency voltage characteristic

∆f/f

–

1.0

ppm/0.1V

Current consumption1

IDD

No output load

–

0.6

1.2

µA

No output load, F output

–

1.3

2.6

O1, O2 motor output current2

2. RL is the resistance of the motor coil connected between O1 and O2.

IOUT

VDD = 2.4V, RL = 1kΩ

2.26

–

mA

AI HIGH-level input current

IIH1

VDD = 3.0V, VIH = 3.0V

0.6

3

7.5

µA

AI LOW-level input current

IIL1

VDD = 3.0V, VIL = 0V

0.6

3

7.5

µA

SN, SEL HIGH-level input current

IIH2

VDD = 3.0V, VIH = 3.0V

0.2

1

2

µA

IIH3

VDD = 3.0V, VIH = 0.5V

25

50

100

SN LOW-level input current

IIL2

VDD = 3.0V, VIL = 0V

0.2

1

2

µA

IIL3

VDD = 3.0V, VIL = 2.5V

25

50

100

AO1, AO2, AO3 LOW-level output

current3

3. The rating varies depending on the device selected. Please refer to the series lineup table for details.

IOL1

VDD = 3.0V, VOL = 1.5V

900

–

µA

IOL2

VDD = 3.0V, VOL = 1.5V

10

–

AO1, AO2, AO3 HIGH-level output

current3

IOH1

VDD = 3.0V, VOH = 1.5V

900

–

µA

IOH2

VDD = 3.0V, VOH = 1.5V

10

–

T1 LOW-level output current

IOLT

VDD = 3.0V, VOL = 3.0V

–

20

–

µA

T1 HIGH-level output current

IOHT

VDD = 3.0V, VOH = 0V

–

20

–

µA

F output voltage4

4. F output voltage is the difference voltage, with load capacitor CL connected between F and VSS pins, between 0.5VDD and the peak voltage.

VF

VDD = 2.4V, output

capacitance CL = 50pF

0.8

–

V

Built-in capacitance

CD

See series lineup

pF

X’tal f0 = 32.768kHz, CI = 35kΩ max, CL = 12.5pF, C0 = 1.3pF, C1 = 2.6pF, CG = 20pF, RL = 400Ω or 1kΩ

XTN

O1

X'tal

O2

VDD

T1

CG

XT

AO1

AI

CD

IAO

RL

SN

SEL

AO2

AO3

VSS

IO

A

IO

VO

A

IDD

VDD

A

VI

II

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