参数资料
型号: DS12885Q
厂商: Maxim Integrated Products
文件页数: 6/22页
文件大小: 0K
描述: IC RTC W/RAM 128 BYTE 28-PLCC
标准包装: 37
类型: 时钟/日历
特点: 警报器,夏令时,闰年,NVSRAM,方波输出
存储容量: 114B
时间格式: HH:MM:SS(12/24 小时)
数据格式: YY-MM-DD-dd
接口: 并联
电源电压: 4.5 V ~ 5.5 V
电压 - 电源,电池: 2.5 V ~ 4 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 28-LCC(J 形引线)
供应商设备封装: 28-PLCC(11.51x11.51)
包装: 管件
DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
14
____________________________________________________________________
Table 2B. Time, Calendar, and Alarm Data Modes—Binary Mode (DM = 1)
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FUNCTION
RANGE
00H
0
Seconds
00–3B
01H
0
Seconds
Seconds Alarm
00–3B
02H
0
Minutes
00–3B
03H
0
Minutes
Minutes Alarm
00–3B
AM/PM
0
Hours
04H
0
00
Hours
01–0C +AM/PM
00–17
AM/PM
0
Hours
05H
0
Hours
Hours Alarm
01–0C +AM/PM
00–17
06H
0
Day
01–07
07H
0
Date
01–1F
08H
0
Month
01–0C
09H
0
Year
00–63
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
0EH-31H
X
RAM
32H
N/A
Century*
33H-7FH
X
RAM
X = Read/Write Bit.
*
DS12C887, DS12C887A only. General-purpose RAM on DS12885, DS12887, and DS12887A.
Note: Unless otherwise specified, the state of the registers is not defined when power is first applied. Except for the seconds regis-
ter, 0 bits in the time and date registers can be written to 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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