参数资料
型号: CDP68HC68T1M
厂商: Intersil
文件页数: 20/23页
文件大小: 0K
描述: IC RTC 32X8 NVSRAM CMOS 20-SOIC
标准包装: 380
类型: 时钟/日历
特点: 警报器,闰年,方波输出,监视计时器
存储容量: 32B
时间格式: HH:MM:SS(12/24 小时)
数据格式: YY-MM-DD-dd
接口: SPI
电源电压: 3 V ~ 6 V
电压 - 电源,电池: 2.2 V ~ 6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC W
包装: 管件
6
FN1547.8
October 29, 2007
SECONDS
MINUTES
HOURS
DAY OF WEEK
DATE
MONTH
YEARS
NOT USED
SEC ALARM
MIN ALARM
HRS ALARM
NOT USED
STATUS REGISTER
CONTROL REGISTER
INTERRUPT CONTROL REGISTER
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
$20
$21
$22
$23
$24
$25
$26
$27
$28
$29
$2A
$2B
$2C
$2D
$2E
$2F
$30
$31
$32
CLOCK/CALENDAR
13 BYTES UNUSED
TEST MODE
32 RAM LOCATIONS
$00
$1F
$20
$32
$33
$3F
$55
85
63
51
50
32
31
0
R = READABLE
W = WRITABLE
R, W
W
R
R, W
FIGURE 2. ADDRESS MAP
TABLE 1. CLOCK/CALENDAR AND ALARM DATA MODES
ADDRESS LOCATION (H)
FUNCTION
DECIMAL RANGE
BCD DATA RANGE
BCD DATE EXAMPLE
(Note 4)
20
Seconds
0 to 59
00 to 59
18
21
Minutes
0 to 59
00 to 59
49
22
Hours
12 Hour Mode
(Note 5)
1 to 12
81 to 92 (AM)
A1 to B2 (PM)
A3
Hours
24 Hour Mode
0 to 23
00 to 23
15
23
Day of the Week
(Sunday = 1)
1 to 7
01 to 07
03
24
Day of the Month
(Date)
1 to 31
01 to 31
29
25
Month
Jan = 1, Dec = 12
1 to 12
01 to 12
10
26
Years
0 to 99
00 to 99
85
28
Alarm Seconds
0 to 59
00 to 59
18
29
Alarm Minutes
0 to 59
00 to 59
49
2A
Alarm Hours (Note 6)
12 Hour Mode
1 to 12
01 to 12 (AM)
21 to 32 (PM)
23
Alarm Hours
24 Hour Mode
0 to 23
00 to 23
15
NOTES:
4. Example: 3:49:18, Tuesday. Oct. 29,1985.
5. Most significant Bit, D7, is “0” for 24 hours, and “1” for 12 hour mode. Data Bit D5 is “1” for PM and ‘0” for AM in 12 hour mode.
6. Alarm hours. Data Bit D5 is “1” for PM and “0” for AM in 12 hour mode. Data Bits D7 and D6 are DON’T CARE.
CDP68HC68T1
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