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参数资料
| 型号： | MAX6900EUT-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO6 |
| 封装： | SOT-23, 6 PIN |
| 文件页数： | 2/16页 |
| 文件大小： | 570K |
| 代理商： | MAX6900EUT-T |
MAX6900
I2C-Bus-Compatible Real-Time Clock
in a SOT23
10
______________________________________________________________________________________
HEX REGISTER ADDRESS/DESCRIPTION
WRITE
ADDRESS/
COMMAND
BYTE
(HEX)
READ
ADDRESS/
COMMAND
BYTE
(HEX)
DESCRIPTION
POR
CONTENTS
D0
D1
RAM 8
Indeterminate
D2
D3
RAM 9
Indeterminate
D4
D5
RAM 10
Indeterminate
D6
D7
RAM 11
Indeterminate
D8
D9
RAM 12
Indeterminate
DA
DB
RAM 13
Indeterminate
DC
DD
RAM 14
Indeterminate
DE
DF
RAM 15
Indeterminate
E0
E1
RAM 16
Indeterminate
E2
E3
RAM 17
Indeterminate
E4
E5
RAM 18
Indeterminate
E6
E7
RAM 19
Indeterminate
E8
E9
RAM 20
Indeterminate
EA
EB
RAM 21
Indeterminate
EC
ED
RAM 22
Indeterminate
EE
EF
RAM 23
Indeterminate
F0
F1
RAM 24
Indeterminate
F2
F3
RAM 25
Indeterminate
F4
F5
RAM 26
Indeterminate
F6
F7
RAM 27
Indeterminate
F8
F9
RAM 28
Indeterminate
FA
FB
RAM 29
Indeterminate
FC
FD
RAM 30
Indeterminate
FE
FF
RAM Burst
N/A
Table 2. Hex Register Address Definition (continued)
on the receiving end. The potential for errors occurs
when the seconds counter increments before all the
other registers are read out. For example, suppose a
carry of 13:59:59 to 14:00:00 occurs during Single
Read operations of the timekeeping registers. The net
data could become 14:59:59, which is erroneous real-
time data. To prevent this with Single Read operations,
read the Seconds register first (initial seconds) and
store this value for future comparison. When the
remaining timekeeping registers have been read out,
read the Seconds register again (final seconds). If the
initial seconds value is 59, check that the final seconds
value is still 59; if not, repeat the entire Single Read
process for the timekeeping registers. A comparison of
the initial seconds value with the final seconds value
can indicate if there was a bus delay problem in read-
ing the timekeeping data (difference should always be
1s or less). Using a 100kHz bus speed, sequential
Single Reads take under 2.5ms to read all seven of the
timekeeping registers plus a second read of the
Seconds register.
The most accurate way to read the timekeeping regis-
ters is a Burst Read. In the Burst Read mode, the main
timekeeping registers (Seconds, Minutes, Hours, Date,
Month, Day, Year) and the Control register are read
sequentially. All of the main timekeeping registers and
the Control register must be read out as a group of
eight registers, with 8 bytes each, for proper execution
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6901EKA-W | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MAX6901ETA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6901ETA-T | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MAX6902ETA | 制造商:Rochester Electronics LLC 功能描述: |
| MAX6902ETA＋ | 制造商:Maxim Integrated Products 功能描述: |
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