Actual size

http://www.epsontoyocom.co.jp

Real time clock module

Real time clock module

Real time clock module

Real time clock module

Epson Toyocom

Epson Toyocom

Epson Toyocom

Epson 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

INTERFACE

/ INT

SCL

SDA

•••• Interface Type

•I

∗ I

•••• Low Timekeeper voltage range

•1.0 V to 5.5 V / Ta = -20

°C to +70 °C

•1.1 V to 5.5 V / Ta = -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 RX-8564 LC 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 with FE-bit, etc.

CLKOE pin

input

FE

bit

CLKOUT pin

output

1

Output

( C-MOS )

HIGH

0

OFF

( LOW )

1

OFF

( LOW )

LOW

0

OFF

( LOW )

/INT

Output

Interrupt output ( N-ch open drain )

-

Connected to a positive power supply.

GND

-

Connected to a ground.

RTC

− 8564 JE

1. N.C.

20. N.C.

2. N.C.

19. N.C.

3. CLKOE

18. N.C.

17. N.C.

5. CLKOUT

16. N.C.

6. SCL

15. N.C.

7. SDA

14. N.C.

8. ( GND )

13. N.C.

9. GND

12. N.C.

10. / INT

5.4

6.0 ± 0.2

11. N.C.

VSOJ − 20 pin

RTC

− 8564 NB

1. / INT

22. N.C.

2. GND

21. N.C.

3. ( GND )

20. N.C.

4. N.C.

19. N.C.

5. SDA

18. N.C.

6. SCL

17. N.C.

7. CLKOUT

16. N.C.

15. N.C.

9. CLKOE

14. N.C.

10. N.C.

13.

−

11. N.C.

4.8

12.

−

SON − 22 pin

Metal may be exposed on the top or bottom of this product. This w ill not affect any quality , reliability or electrical spec.

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

Typ.

Max.

Unit

°C ∼ +70 °C

0.9

1.0

V

Low voltage

detection

°C ∼ +85 °C

0.9

1.1

V

!

!

!

Item

Symbol

Condition

Rating

Unit

Frequency

tolerance

∆ f / f

°C

5

± 23 *

6

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

!

!

!

−40 °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

Consumtion

CLKOUT ;

32.768 kHz output ON

(Output=OPEN ;

CL = 0 pF)

= 3 V

1.5

2.2

µA

RTC-8564JE

RTC-8564NB

Low current consumption

•Built in frequency adjusted 32.768 kHz crystal unit.

•Interface Type

׃

•Operating voltage range

׃

1.8 V to 5.5 V

•Timekeeper voltage range

׃

1.0 V to 5.5 V / -20

°C to +70 °C

•Low backup current

׃

275 nA / 3.0 V(Typ.)

•32.768 kHz frequency output function

׃

C-MOS output With Control Pin

•The various functions include full calendar, alarm, timer,

and power supply voltage monitoring function

* The I

Product Number (Please contact us)

RTC-8564JE : Q41856471000100

RTC-8564NB : Q41856491000200