Datasheet CF5732KA, CF5732JA, CF5732HA, CF5732GA, CF5732FA Datasheet (NPC)

NIPPON PRECISION CIRCUITS INC.

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OVERVIEW

CF5732 Series

Analog clock CMOS IC

The CF5732 series are analog clock driver ICs using
32kHz 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 applications for various clock specifica­tions.

The CF5732 series incorporates 4 types of pace adjust­ment capacitors, which enables to adjust the pace with
bonding options.

FEATURES

- Built-in oscillator circuits(32.678 kHz)
On-chip feed back resistors (Rf, Rd)
Crystal oscillator capacitors (CD, CG)
Additional 4 capacitors for pace adjustment.

- Debounce circuit (AI terminal)

- Single 1.5 V supply

- Available as a die

SERIES LINEUP

CF5732EA CF5732FA CF5732GA CF5732HA CF5732JA CF5732KA

Built-in XT terminal C

G(pF) 11.5 11.5 10 11.5 11.5 11.5

Capacitor XT terminal C

D(pF) 29 29 25 29 29 29

C1(pF) 6 6 3666
C2(pF) 7 7 4777
C4(pF) 8 8 5888
C4(pF) 9 9 6999

Motor Active Level - H L H H H

Output Hand Drive Cycle(sec) 0.125 1 1111

Pulse Width(msec) DUTY50% 31.25 31.25 15.6 23.4375 46.875

Alarm Active Level L L LLLL

Input Test Function Yes(1/2V

DD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD)

Alarm Terminal AO AO AO AO AO AO AO AO AO AO AO AO

Output Active Level H L(*1) H L(*2) H L(*1) H L(*2) H L(*2) H L(*2)

Fundmental Frequency(Hz) 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048

Modulation Frequency(Hz) 8+1 8+1 8+1 8+1 8+1 8+1 16+116+18+18+18+18+1

I

OH MIN(mA) −1.0 −1.0 −1.0 −1.0 −1.0 −1.0

I

OL MIN(mA) 1.0 1.0 1.0 1.0 1.0 1.0

(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive)
(*2) AO is complete reverse phase of AO. (even output is inactive.)

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CF5732 Series

PINOUT

(0, 0)

1234

5

6

78 9

11

X

Y

10

12

13

14

Name

VDD

VSS

TC

AI
AO
AO

OUT2
OUT1

XT
XT

C1
C2
C3
C4

Description

Power supply pin
Ground
Test pin
Alarm Input
Alarm signal Output
Alarm signal Inverting Output
Motor drive output 2
Motor drive output 1
Crystal oscillator connection
Crystal oscillator connection
Supplementary internal capacitor connection 1
Supplementary internal capacitor connection 2
Supplementary internal capacitor connection 3
Supplementary internal capacitor connection 4

Chip size: 1.49×1.40mm
Chip thickness: 300±30µm
Pad size: 100×100µm
Reverse side of chip is VDD.

No Name X Y No Name X Y

1 VDD 1023 1248 8 OUT1 340 151
2 VSS 817 1248 9 XT 567 151
3 TC 553 1248 10 XT 1101 151
4 AI 214 1248 11 C1 1305 382
5 AO 151 943 12 C2 1305 682
6 AO 151 429 13 C3 1305 880
7 OUT2 151 151 14 C4 1305 1105

(Unit: µm)

PIN DESCRIPTION

BLOCK DIAGRAM

4 Stage
Divider

13 Stage

Divider

Alarm
Input

Alarm Output

Control

Mortor Output

Control

VDD

VSS

AO AO OUT1 OUT2

TC

AI

Alarm

Test

XT

CG

CD

XT

C1 C2 C3 C4

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CF5732 Series

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Parameter Symbol Condition Rating Unit

Supply Voltage V

DD - VSS −0.3 to +5.0 V

Input Voltage V

IN VSS ≤ VIN ≤ VDD V

Operating Temperature T

OPR −30 to +70 °C

Storage Temperature T

STG −40 to +125 °C

(VSS= 0V)

Rating

Parameter Symbol Condition MIN TYP MAX Unit

Supply Voltage V

DD 1.1 1.5 2.0 V

Supply Current I

DD No Load(*1) 1.0 3.0 µA

Motor Output Current I

MOT VDD= 1.2V, RL= 200Ω 4.0 mA

Alarm Output Current I

OH AO, AO pin, VOH= 0.75V −1.0 mA

I

OL AO, AO pin, VOL= 0.75V 1.0 mA

Alarm Input Voltage V

IH AI pin VDD−0.2 VDD V

V

IL AI pin VSS VSS+0.2 V

Alarm Input Center Voltage V

IM AI pin 1/2VDD V

Input Resistance R

IN AI pin 5 15 50 kΩ

Oscillator Stability ∆f/f V

DD= 1.1V to 2.0V 0.5 1 PPM/0.1V

Internal Capacitance C

G (*2) GA 10 pF

others 11.5 pF

C

D (*3) GA 25 pF

others 29 pF

(Ta= 25°C, VDD= 1.5V, VSS= 0V, f0= 32.768kHz unless otherwise noted)

(*1) All terminals except for the supply and the crystal oscillators are open.
(*2) C

G is the incorporated capacitance between VDD and XT.

(*3) C

D is the incorporated capacitance between VDD and XT.

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CF5732 Series

FUNCTIONAL DESCRIPTION

Alarm input/output

AO

AO
(*1)

AI

AO
(*2)

1/2VDD (*3)

fPW fCY

(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive): CF5732EA, GA
(*2) AO is complete reverse phase of AO. (even output is inactive.): CF5732FA, HA, JA, KA
(*3) When AI is held at 1/2 V

DD, the alarm reference, frequency is output at AO and AO.

Input Debouncing Circuit

Setting bouncing delay time prevents the circuit from the

erroneous operation by AI input bouncing (chattering.)

ton ≤ 31.25 msec : The alarm input is ignored
ton ≥ 62.5 msec : The alarm input is accepted

tCH tON

AI

(Active L)

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CF5732 Series

Motor Drive Outputs

Step needle movement

CF5732FA, GA, HA, JA, KA

OUT1

OUT2

tPW

tPW

tCY

1sec

tCY

1sec

OUT1

OUT2

tCY

125msec

tCY

125msec

Continuos needle movement

CF5732EA

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CF5732 Series

NC9121BE 1996 3

NIPPON PRECISION CIRCUITS INC.

NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to

improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modifica­tion. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, includ­ing compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirect­ly, any products without first obtaining required licenses and approvals from appropriate government agencies.

NIPPON PRECISION CIRCUITS INC.

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Tokyo, 135 -8430, JAPAN
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