參數(shù)資料
型號(hào): RV5C339
廠商: Ricoh Co., Ltd.
英文描述: 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
中文描述: 3線串行接口實(shí)時(shí)時(shí)鐘IC,帶有電壓檢測(cè)功能
文件頁(yè)數(shù): 13/51頁(yè)
文件大小: 421K
代理商: RV5C339
17
RV5C339A
2.4 Day-of-week Counter (at Address 3h)
D7
D6
D5
D4
D3
D2
D1
D0
W4
W2
W1
0
W4
W2
W1
0
Indefinite
(For writing)
(For reading)
Default settings*
*) Default settings: Default value means read/written values when the XSTP bit is set to “1” due to power-on from 0 volts or supply voltage drop.
The day-of-week counter is incremented by 1 when the day-of-week digits are carried to the day-of-month digits.
Day-of-week display (incremented in septimal notation):
(W4, W2, W1) = (0, 0, 0)
→ (0, 0, 1) →...→ (1, 1, 0) → (0, 0, 0)
Correspondences between days of the week and the day-of-week digits are user-definable (e.g. Sunday = 0, 0, 0)
The writing of (1, 1, 1) to (W4, W2, W1) is prohibited except when days of the week are unused.
2.5 Calendar Counters (at Address 4h to 6h)
The calendar counters are configured to display the calendar digits in BCD format by using the automatic calen-
dar function as follows:
The day-of-month digits (D20 to D1) range from 1 to 31 for January, March, May, July, August, October, and
December; from 1 to 30 for April, June, September, and November; from 1 to 29 for February in leap years;
from 1 to 28 for February in ordinary years.
The day-of-month digits are carried to the month digits in reversion from the last day of the month to 1. The
month digits (MO10 to MO1) range from 1 to 12 and are carried to the year digits in reversion from 12 to 1.
The year digits (Y80 to Y1) range from 00 to 99 (00, 04, 08, ... , 92, and 96 in leap years) and are carried to the
19/20 digits in reversion from 99 to 00.
The 19/20 digits cycle between 0 and 1 in reversion from 99 to 00 in the year digits.
Any carry from lower digits with the writing of non-existent calendar data may cause the calendar counters to mal-
function. Therefore, such incorrect writing should be replaced with the writing of existent calendar data.
2.5-1 Day-of-month Counter (at Address 4h)
D7
D6
D5
D4
D3
D2
D1
D0
D20
D10
D8
D4
D2
D1
0
D20
D10
D8
D4
D2
D1
0
Indefinite
(For writing)
(For reading)
Default settings*
2.5-2 Month Counter + Century Bit (at Address 5h)
D7
D6
D5
D4
D3
D2
D1
D0
19/20
MO10
MO8
MO4
MO2
MO1
19/20
0
MO10
MO8
MO4
MO2
MO1
Indefinite
0
Indefinite
(For writing)
(For reading)
Default settings*
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RV5C339A 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C339A_03 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
RV5C339A-E2 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C348A 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C348B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION