rx-8803sa Epson Electronics America, Inc., rx-8803sa Datasheet

rx-8803sa

Manufacturer Part Number

rx-8803sa

Description

Built-in 32.768 Khz-dtcxo, High Stability I 2 C-bus Interface Real Time Clock Module

Manufacturer

Epson Electronics America, Inc.

Datasheet

1.RX-8803SA.pdf (1 pages)

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∗1 )

Operating voltage

Temp. compensated

Clock supply voltage

Operating temperature

Stability

Current consumption (1)

Current consumption (2)

Electrical Characteristics

Voltage

Built-in 32.768 kHz-DTCXO, High Stability

RX - 8803 SA

Equivalent to 9 seconds of month deviation.

Signal Name

•Built in frequency adjusted 32.768 kHz crystal unit and DTCXO.

•1/100s resolution Time register

•Interface Type

•Interface voltage range

•Temp. compensated voltage range

•Clock supply voltage range

•Selectable clock output (32.768 kHz, 1024 Hz, 1 Hz)

•The various functions include full calendar, alarm, timer, EVIN input.

*The I

Block diagram

C-Bus INTERFACE REAL TIME CLOCK MODULE

Pin Function

Specifications (characteristics)

T2(VPP)

Real time clock module

T1(CE)

FOUT

TEST

EVIN

/ INT

GND

FOE

FOUT

EVIN

/ INT

SDA

SCL

VDD

FOE

SDA

SCL

Item

C-BUS is a trademark of NXP Semiconductors.

Output

Output Interrupt output (N-ch. open drain).

input

I / O

I/O

Symbol

IDD1

IDD2

Δ f / f

OPR

TEM

CLK

Use by the manufacture for testing.

Serial clock input pin.

The pin outputs the reference clock signal.

Use by the manufacture for testing.

Connected to a positive power supply

The input pin for the FOUT output control.

External event input.

Connected to a ground

Use by the manufacture for testing.

Data input and output pin.

( Do not connect externally.)

( CMOS output )

( Do not connect externally. RX-8803SA only.)

( Do not connect externally.)

Backup Mode

FOE = GND,

FOUT output : OFF

Interface voltage

Temp. compensated voltage

/INT = V

∗2 )∗3 )

INTERRUPT

FOUT

INTERFACE

CONTROLLER

DIVIDER

Equivalent to 13 seconds of month deviation. ( excluding offset )

DTCXO

Ta = -40 ºC to +85 ºC

Ta = -30 ºC to +70 ºC

Ta = +25 ºC

32kHz

CIRCUIT

Condition

: I

: 1.6 V to 5.5 V

: 2.2 V to 5.5 V

: 1.6 V to 5.5 V

C-Bus interface (400kHz)

Function

32.768 kHz

= 5V

= 3V

http://www.epsontoyocom.co.jp

TIMER

CONTROL

SYSTEM

CONTROLLER

Min.

−40

CLOCK

CALENDAR

1.6

2.2

1.6

ALARM

and

5 ±5.0

±3.4

±5.0 ∗2

Typ.

+25

3.0

1.2

0.8

∗1

∗3

Max.

+85

5.5

3.4

2.1

Actual size

RX-8803SA

× 10

Terminal connection / External dimensions

Unit

μA

ºC

−6

T1(CE)

SCL

FOUT

N.C.

TEST

FOE

• High Stability

• High Resolution: 1/100s Time register with capture buffer

• 32.768 kHz frequency output function

• The various interrupt

• Time synchronize function with 1PPS signal input

• Register compatibility: upper compatible with RX-8801.

*It is possible to use it by the terminal connection as

32.768 kHz-DTCXO.

RX − 8803 SA

•UA

•UB

•UC

•AA

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

• Output selectable: 32.768 kHz, 1024 Hz, 1 Hz

• Timer Function can be set between 1/ 4096 second and

• Alarm Function can be set to day of week, day, hour, or minute.

• EVIN input.

Overview

SOP − 14 pin

32.768 kHz-DTCXO Frequency temperature characteristics (Example)

Metal may be exposed on the top or bottom of this product.

4095 minutes.

This will not affect any quality, reliability or electrical spec.

( Equivalent to 9 seconds of month deviation )

( Equivalent to 13 seconds of month deviation )

7.4

RX-8803LC

5.0

± 0.2

-10

-15

-20

-25

-30

-5

(+5 ± 5.0) x 10

± 3.4 x 10

± 5.0 x 10

-45

-35

32.768 kHz DTCXO

14.

13.

12.

11.

10.

-25

∗ Refer to application manual for details.

-6

Frequency tem perature characteri sti cs

N.C.

SDA

T2(V

GND

/ INT

EVIN

N.C.

-15

Product Number (Please contact us)

/ -40 ºC to +85 ºC

/ -30 ºC to +70 ºC

-6

)

-5

/ +25 ºC

Temperature (ºC)

1. N.C.

2. FOE

3. V

4. FOUT

5. SCL

6. T1

Epson Toyocom

(CE)

RX − 8803 LC

VSOJ − 12pin

2.4

2.8

Tuning fork X'tal

12. EVIN

10. GND

11. /INT

9. T2(Vpp)

8. SDA

7. N.C.

(Unit:mm)

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