NPC CF5760JA, CF5760HA, CF5760FC, CF5760EA, CF5760DA Datasheet

CF5760 series

NIPPON PRECISION CIRCUITS INC.

CMOS Analog Clock IC

OVERVIEW

The CF5760 series devices are analog clock ICs that derive their timing from a 32.768 kHz oscillator element.
They feature a reset function (optional seconds control function) which can be used to maintain accurate time.
Various alarm functions and motor outputs are available to match a wide range of clock specifications.

FEATURES

■

1.2 to 2.0V operating supply voltage

■

1.2µA (typ) / 1.5V current consumption

■

32.768 kHz oscillator circuit

■

Oscillator capacitance C

■

Alarm output function

■

Reset function (optional seconds control function)

■

Input chattering elimination function (AI/R)

■

Chip form (CF5760 ×× )

and C

G

built-in

D

PAD LAYOUT

VDD

AI/R

O1

O2

(0,0)

Top view

1

XT

9

2

8

XTN

3

7

AON

6

AO

45

HA5760

VSS

Chip size: 0.76

×

1.21 mm
Chip thickness: 300 ± 30 µm
Pad size: 100
Re verse side: V

×

100 µm

level

DD

SERIES CONFIGURATION

CF5760AA CF5760BA CF5760CC CF5760DA CF5760EA CF5760FC CF5760HA CF5760JA

C

(pF) 33333333

Built-in
capacitance

Alarm input/reset input level HIGH/LOW HIGH/LOW LOW/HIGH LOW/HIGH –/LOW LOW /HIGH LOW/HIGH LOW/HIGH

Motor output

Alarm output

1. Built-in capacitance includes the parasitic capacitance.

G

1

C

(pF) 25 25 33 25 25 33 25 25

D

Active level LOW LOW HI GH LOW – – HI GH –
Needle period

t

(s)

CY

Pulsewidth

(ms)

t

PW

Pins AO AO N AO AON AO AO N A O AO N AO AON AO AO N A O AO N AO AON
Active level HI GH LOW HI GH
Frequency

(kHz)

f

PW

Modulation

(Hz)

f

CY

I

min (

µ

A) 900 900 900 10 900 900 900 10 – – 900 900 900 900 900 10

OH

I

min (

µ

A) 900 900 10 10 900 900 10 10 – – 900 900 900 900 10 10

OL

111110.0625 1 0.0625

23.4 23.4 31.25 27.3 1000 62.5 46.875 62.5

F

HIGH LOW HIGH

(32kHz)

44DC–22DC–––2222DC–

88––8 + 18 + 1––––8 + 18 + 18 + 18 + 1––

F

– – HIGH LOW HIGH LOW HIGH

(32kHz)

(32kHz)

F

ORDERING INFORMATION

De vice Pack ag e

CF5760

××

Chip form

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BLOCK DIAGRAM

CF5760 series

XT

XTN

AI/R

CG

CD

Reset
Input

Alarm
Input

VDD

7 Stage

Divider

VSS

9 Stage
Divider

Alarm Output

Control

AO AON

Motor Output

Control

O1 O2

PAD DESCRIPTION/DIMENSIONS

No. Name Description

1 VD D Supply 155 1065
2 AI/R Alarm input and reset input 15 5 85 4
3 O1 Motor output 1 155 6 20
4 O2 Motor output 2 145 1 45
5 V SS Ground 615 145
6 AO Alarm o utput 1 615 3 25
7 AON Alarm ou tput 2 615 50 5
8 XT N Oscillator output 61 5 74 6
9 X T Oscillator input 6 1 5 1065

Dimensions (µm)

XY

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SPECIFICATIONS

Absolute Maximum Ratings

Parameter Symbol Condition Rating Unit

Supply voltage range V
Input voltage range V
Ope rating temperature range T
Storage temperature range T

Electrical Characteristics

T

= 25 ° C, V

a

erwise noted

= 1.5V, V

DD

SS

DD

= 0V, C

−

V

IN

opr

stg

= 23pF, C

G

SS

C

CF5760 series

−

0.3 to 5.0 V

V

≤

V

≤

= 25pF, X’tal (f

D

SS

−

−

65 to 150

= 32.768kHz, C

0

V

IN

DD

30 to 80

= 50k Ω max) unless oth-

I

V

°

C

°

Parameter Symbol Condition

Ope r ating voltage V
Current consumption I
Oscillator start-up time t
Motor output current I
AI/R HIGH-level input current I
AI/R LOW -level input current I
Oscillator frequency stability

Alarm L O W-level output current

2

(AO, AON)

Alarm HIGH-level output current

2

(AO, AON)
F output voltage

Internal capacitance

1. R

is the load resistance connected between O1 and O2.

L

2. CF5760AA/ CC/ FC/ HA: If the outputs (AO or AON) are shor t circuit, the output current is I

3

4

3. The F output voltage rating, V F, when a load capacitance, C
ag e, 0.5V

4. C

G

, and the peak voltage.

DD

is the capacitance between VDD and XT. C

DD

DD

STA

MOT

IH

IL

∆

f/f V

I

OL1

I

OL2

I

OH1

I

OH2

V

F

C

G

C

D

D

O1 = O2 = open – 1.2 4.0 µA
V

= 1.2V – – 5.0 s

DD

V

= 1.2V, R

DD

V

= 1.5V 2 4 8 µ A

DD

V

= 1.5V 2 4 8 µ A

DD

= 1.2 to 2.0V – 0.5 1 .0 ppm/0.1V

DD

V

= 1.5V, V

DD

V

= 1.5V, V

DD

V

= 1.5V, V

DD

V

= 1.5V, V

DD

V

= 1.2V, C

DD

, is connected between pin F and VS S, is the differ en c e voltage between the center volt-

L

1

= 200

Ω

L

= 0.75V 900 2000 – µA

OL

= 0.75V 10 30 – µA

OL

= 0.75V 900 2000 – µ A

OH

= 0.75V 1 0 30 – µA

OH

= 50pF 0.4 – – V

L

is the capacitance between VDD and XTN.

AO

Rating

min typ max

1.2 – 2.0 V

4.0 – – mA

Refer to the SERIES LINEUP

≥

900

µ

A.

Unit

pF
pF

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