Actual size

http://www.epsontoyocom.co.jp

Real time clock module

Real time clock module

Real time clock module

Real time clock module

E

E

E

Epson Toyocom

pson Toyocom

pson Toyocom

pson Toyocom

Block diagram

Overview

Control 1

Seconds

Minutes

Hours

Days

Month / Century

Control 2

Weekdays

Years

Minutes Alarm

Hour Alarm

Day Alarm

Weekday Alarm

Timer Control

CLKOUT frequency

Timer

00

0F

OUTPUT

CONTROL

CONTROL

LOGIC

POR

OSC

32.768 kHz

CRYSTAL

CLKOUT

CLKOE

DIVIDER

Voltage Detector

ADDRESS

REGISTER

I

2

C-BUS

INTERFACE

/ INT

SCL

SDA

•••• Interface Type

• I

•••• Low Timekeeper voltage

°C

−40 °C to +85 °C

•••• 32.768 kHz frequency output function

• CLKOUT pin output (C-MOS output ), CL=30 pF

• CLKOE pin enables output on/off control.

• Output selectable <32.768 kHz, 1024 Hz, 32 Hz, 1 Hz>

•••• The various interrupt function

• Timer function can be set up between 1/4096 second and 255 minutes.

• Alarm function can be set to any combination of day of

week, hour, or minute.

∗ Functions are compatible with RTC-8564 JE / NB series.

Pin Function

Terminal connection / External dimensions

(Unit:mm)

Signal Name

Input / Output

Function

SCL

Input

Serial clock input pin

SDA

Bi-directional

Data input and output pin

CLKOUT

Output

CLKOE

Input

32.768 kHz clock output pin with the output control function. (C-MOS)

CLKOE pin control the condition of CLKOUT pin with FE-bit, FD1-bit,

FD0-bit.

C L KOE pi n

i nput

FE

bi t

CL K O UT pi n

output

1

O u t p ut

( C-M O S )

HI G H

0

O FF

( LO W )

1

O FF

( LO W )

LO W

0

O FF

( LO W )

/INT

Output

Interrupt output

( N-ch open drain )

-

Connected to a positive power supply.

GND

-

Connected to a ground.

RX

− 8564 LC

1.

N.C.

12.

N.C.

2.

N.C.

11.

CLKOE

3.

N.C.

10.

4.

N.C.

9.

CLKOUT

5.

/ INT

8.

SCL

6.

GND

2.4

2.8

7.

SDA

VSOJ

− 12pin

Specifications (characteristics)

∗ Refer to application manual for details.

!

!

!

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Power voltage

-

1.8

3.0

5.5

V

Clock voltage

-

3.0

5.5

V

Operating

temperature

-

-40

+25

+85

°C

!

!

!

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

°C

0.9

1.0

V

°C to +70 °C

0.9

1.2

V

Low voltage

detection

°C to +85 °C

0.9

1.3

V

!

!

!

Item

Symbol

Condition

Rating

Unit

Frequency

tolerance

∆ f / f

5

± 23 *

* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)

!

!

!

°C to +85 °C

Item

Symbol

Condition

Min.

Typ.

Max. Unit

= 5 V

330

800

CLKOE = GND

CLKOUT ;

output OFF ( LOW )

= 3 V

275

700

nA

= 5 V

2.5

3.4

Current

Consumption

CLKOUT ;

32.768 kHz Output ON

(Output=OPEN ;

CL = 0 pF)

= 3 V

1.5

2.2

µA

Low current consumption /

Small size, low profile model package

I

RX - 8564 LC

: I

: 1.8 V to 5.5 V

: 275 nA / 3.0 V(Typ.)

power supply voltage monitoring function.

* The I

Product Number (Please contact us)

RX-8564LC : Q418564C0xxxx00