參數(shù)資料
型號: DS1687-5IND
廠商: Maxim Integrated Products
文件頁數(shù): 34/34頁
文件大?。?/td> 0K
描述: IC RTC 5V 64-BIT Y2K 24-EDIP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 14
類型: 時鐘/日歷
特點: 警報器,NVSRAM,方波輸出,Y2K
存儲容量: 242B
時間格式: HH:MM:SS(12/24 小時)
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 4.5 V ~ 5.5 V
電壓 - 電源,電池: 2.5 V ~ 3.7 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 24-DIP 模塊(0.600",15.24mm)
供應商設備封裝: 24-EDIP
包裝: 管件
DS1685/DS1687 3V/5V Real-Time Clocks
9 of 34
“don’t care” codes in all three time alarm bytes create an interrupt every second. The three time-alarm bytes can be
used with the date alarm as described in the Wake-Up/Kickstart section. The century counter is discussed later in
this text.
All registers can be directly written or read except for the following:
1) Registers C and D are read-only.
2) Bit 7 of Register A is read-only.
3) Bit 7 of the seconds byte is read-only.
Table 2A. Time, Calendar, and Alarm Data Modes—BCD Mode (DM = 0)
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FUNCTION
RANGE
00H
0
10 Seconds
Seconds
00-59
01H
0
10 Seconds
Seconds
Alarm
00-59
02H
0
10 Minutes
Minutes
00-59
03H
0
10 Minutes
Minutes
Alarm
00-59
04H
AM/PM
0
10 Hour
Hours
1-12
+AM/PM
00-23
0
10 Hour
05H
AM/PM
0
10 Hour
Hours
Alarm
1-12
+AM/PM
00-23
0
10 Hr
06H
0
Day
01-07
07H
0
10 Date
Date
01-31
08H
0
10 Month
Month
01-12
09H
10 Year
Year
00-99
0AH
UIP
DV2
DV1
DV0
RS3
RS2
RS1
RS0
Control
0BH
SET
PIE
AIE
UIE
SQWE
DM
24/12
DSE
Control
0CH
IRQF
PF
AF
UF
0
Control
0DH
VRT
0
Control
48H
Century
Bank 1
Century
00-99
49H
10 Date
Date
Bank 1
Date Alarm
01-31
X = Read/Write Bit.
Note 1: Unless otherwise specified, the state of the registers is not defined when power is first applied.
Note 2: Except for the seconds register, 0 bits in the time and date registers can be written to a 1, but may be modified when the clock updates.
0 bits should always be written to 0 except for alarm mask bits.
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