RV5C387A_03 datasheet(49/49 Pages) RICOH

Part #	RV5C387A

Description	I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION

Download	49 Pages

Scroll/Zoom	100%

Manufacturer	RICOH [RICOH electronics devices division]

Direct Link	http://www.ricoh.com

Logo

49 / 49 page

49

RV5C387A

CTFG=1?

Generate Interrupt to CPU

Write “

×,1,×,1,×,0,1,1”

to Control Register 2

Set Periodic Interrupt

Cycle Selection Bits

YES

NO

Periodic Interrupt Process

Other Interrupt

Processes

*

1

*

2

WAFG or DAFG=1?

Generate Interrupt to CPU

WALE or DALE=1

Write “

×,1,×,1,×,1,0,1”

to Control Register 2

WALE or DALE=0

YES

NO

Conduct Alarm Interrupt

Set Alarm Minute, Hour,

and Day-of-week Registers

*

1

*

2

*

3

Other Interrupt

Processes

8.4-2 Alarm Interrupt

8.4 Interrupt Process

8.4-1 Periodic Interrupt

*1) This step is intended to select the level mode as a waveform mode for the

periodic interrupt function.

*2) This step is intended to set the CTFG bit to 0 in the control register 2 to

cancel an interrupt to the CPU.

*1) This step is intended to once disable the alarm interrupt circuit by setting

the WALE and DALE bits to 0 in anticipation of the coincidental occurrence

of a match between current time and preset alarm time in the process of

setting the alarm interrupt function.

*2) This step is intended to enable the alarm interrupt function after completion

of all alarm interrupt settings.

*3) This step is intended to once cancel the alarm interrupt function by writing

the settings of “

×,1,×,1,×,1,0,1” and “×,1,×,1,×,1,1,0” to the Alarm_W

registers and the Alarm_D registers, respectively.

Similar Part No. - RV5C387A_03

Manufacturer	Part #	Datasheet	Description
RICOH electronics devic...	RV5C387A-E2	363Kb / 42P	I2C-bus Real-Time Clock ICs with Voltage Monitoring Function?

More results

Similar Description - RV5C387A_03

Manufacturer	Part #	Datasheet	Description
RICOH electronics devic...	RV5C386A	377Kb / 49P	I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
	RV5C387A	363Kb / 42P	I2C-bus Real-Time Clock ICs with Voltage Monitoring Function?
	RS5C372B-E2-F	402Kb / 57P	I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
	RV5C386A	362Kb / 42P	I2C-bus Real-Time Clock ICs with Voltage Monitoring Function
	RS5C372A-E2-F	402Kb / 57P	I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
	RV5C339A	364Kb / 46P	3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
	RV5C338A	440Kb / 52P	3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION?
	RV5C339A	421Kb / 51P	3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION???
	RS5C348A	452Kb / 53P	4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION?
	RS5C338A	578Kb / 51P	3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION

More results

RV5C387A Datasheet(PDF) 49 Page - RICOH electronics devices division

RV5C387A Datasheet(HTML) 49 Page - RICOH electronics devices division

Similar Part No. - RV5C387A_03

Similar Description - RV5C387A_03

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Datasheet Download

Link URL