AB-RTCMK-32.768kHz

REAL TIME CLOCK MODULE WITH 32.768kHz TCXO

3.2 x 2.5 x 1.0 mm

Compliant

ABRACON IS

ISO 9001 / QS 9000

CERTIFIED

ABRACON IS

ISO 9001 : 2008

CERTIFIED

30332Esperanza, Rancho Santa Margarita, California 92688

Revised: 09.30.12

Visit www.abracon.com for Terms & Conditions of Sale

Pin No.

Pin Name

I/O

Function

1

CLKOE

Input

This is an input pin used to control the output mode of the CLKOUT pin.

When this pin’s level is high, the CLKOUT pin is in output mode.

When it is low, the CLKOUT pin is “Hi-Z” (High Impedance).

2

/INT

Output This pin is used to output alarm signals, timer signals, timer update signals,

and other signals. This pin is an open drain pin.

3

N.C.

This pin is open.

4

VSS

This pin is connected to ground.

5

CLKOUT

Output This pin outputs a 32.768kHz signal.

This is the C-MOS output pin with output control provided via the CLKOE pin.

6

SCL

Input

7

SDA

I/O

This pin’s signal is used for input and output of address, data, and ACK bits,

This pin is an N-ch open drain pin during output.

8

VDD

This pin is connected to a positive power supply.

VDD

VSS

SCL

CLKOE

CLKOUT

SDA

32.768kHz

/INT

EEPROM

DIVIDER

CLOCK

CALENDER

COUNTER

ALARM

REGISTER

CLKOUT

CONTROL

INTERRUPT

CONTROL

TIMER

REGISTER

INTERFACE

FUNCTION:

BLOCK DIAGRAM: