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PDF KKA8583N Data sheet ( Hoja de datos )

Número de pieza KKA8583N
Descripción CMOS timer
Fabricantes KODENSHI KOREA 
Logotipo KODENSHI KOREA Logotipo



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CMOS timer with RAM and I2C-bus control.
TECHNICAL DATA
KKA8583N
KKA8583N is a timer with RAM and I2C-bus control. Designed for use in ap-
pliances having I2C-bus as clock/calendar/timer/alarm/events counter for turn-
ing on functions of the appliance at preset time or upon completion of an
event. To be used in audio and appliances.
Features:
- I2C- bus interface operating supply voltage: 2.5 V to 6 V;
- Clock operating supply voltage ( 0÷70°С): 1.0 V to 6 V;
- Operating current (at fSCL = 0Hz):
50 µА;
- Clock function with four year calendar;
- 24 or 12 hour format;
- 32.768 kHz or 50Hz time base;
- Serial bus (I2C);
- Automatic word address in crementation;
- Programmable alarm, timer and interrupt function;
- Operating temperature range: -20 to +70 ОС.
-
TA = -20° Tо 70° C
Table1 – PIN ASSIGNMENT
OSCI
OSCO
A0
GND
SDA
SCL
INT
Vcc
Pin
1 Generator input, 50Hz or occurrences
2 Generator output
3 Address input
4 GND
5 Data for I2C-bus
6 Clock pulses for I2C-bus
7 Open-drain interrupt output
8 Supply voltage
Pinning diagram
OSCI
OSCO
A0
GND
1
2
3
4
8 Vcc
7 INT
6 SCL
5 SDA
Fig.1
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KKA8583N pdf
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KKA8583
KKA8583N contains 256х8 RAM 8-bit. The word address register which is incremented automati-
cally, built-in 32.768 kHz oscillator circuit, frequency divider, interface of two line bi-directional
serial I2C-bus and power-on reset circuit.
The first 8 bits of the RAM (addresses 00÷07) are designated ass addressable 8-bit parallel
registers. The first register (address 00) is used as a control/status register. The memory addresses
01 to 07 are used as counters for the clock function. The memory address 08÷0F may be used as
free RAM locations or may be programmed as alarm registers.
The following modes can be selected by setting the control/status register:
„ Clock mode from 32.768 kHz;
„ Clock mode from 50 Hz;
„ Event counter mode.
In the clock mode hundredths of a second, seconds, minutes, hours, date, month (four-year
calendar) and a weekday are stored in a BCD format. The timer register stores up to 99 days. The
event counter mode is used for counting pulses applied to the oscillator input (OSCO left open-
circuit). In BCD format the event counter stores up to 6 digits.
By setting the alarm enabling bit of the control/status register the alarm control register (ad-
dress 08) is activated.
By setting the alarm control register the following may be programmed:
„ Dated alarm;
„ Weekday alarm;
„ Daily alarm;
„ Timer alarm.
In the clock mode the timer register (address 07) may be programmed to count hundredths
of a second, seconds, minutes, hours or days. Days are counted when an alarm is not programmed.
Whenever an alarm event occurs the alarm flag of the control/status register is set, and an
overflow condition of the timer will set the timer flag. The open drain interrupt output is switched
on (active LOW) when the alarm or timer flag is set. The flags remain set until directly reset by a
write operation to register (00 address).
When the alarm is disabled the remaining alarm registers (addresses 09÷0F) may be used as
free RAM.
In the clock modes 24hr or 12hr format can be selected by setting the most significant bit of
the hours counter register.
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KKA8583N arduino
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KKA8583
Application circuit
VCC
VCC
А0
SCL
OSCI KKA8583N
SDA
OSCO
GND
SDA
SCL
Master
transmitter
VCC
VCC
VCC
А0
SCL
OSCI KKA8583N
SDA
OSCO
GND
VCC
RR
Fig.10
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