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参数资料
| 型号： | DS1602 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | Elapsed Time Counter(经过时间计数器) |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 3/9页 |
| 文件大小： | 70K |
| 代理商： | DS1602 |
DS1602
042298 3/9
DATA OUTPUT
Following the eight CLK cycles that input read mode
protocol, 32 bits of data will be output from the selected
counter on the next 32 CLK cycles. The first data bit to
be transmitted from the selected 32–bit counter occurs
on the falling edge after the last bit of protocol is written.
When transmitting data from the selected 32–bit count-
er, RST must remain at high level as a transition to low
level will terminate data transfer. Data is driven out the
DQ pin as long as CLK is low. When CLK is high the DQ
pin is tristated.
CRYSTAL SELECTION
A standard 32,768 KHz quartz crystal can be directly
connected to the DS1602 via pins 1 and 2 (X1, X2). The
crystal selected for use should have a specified load
capacitance (C
L
) of 6 pF. For more information on crys-
tal selection and crystal layout considerations, please
consult Application Note 58, “Crystal Considerations
with Dallas Real Time Clocks”.
BATTERY SELECTION
The battery selected for use with the DS1602 should
have an output voltage between 2.5 and 3.5 volts. A lith-
ium battery of 35 mAh or greater will run the elapsed
time counter for over 10 years in the absence of power.
Small lithium coin cell batteries produce both the proper
output voltage and have the capacity to supply the
DS1602 for the useable lifetime of the equipment where
they are installed.
DS1602 ELAPSED TIME COUNTER BLOCK DIAGRAM
Figure 1
RST
CLK
DQ
SERIAL
PORT
REGISTER
OSTRIM
REGISTER
32–BIT CONTINUOUS
COUNTER
OSRTC
X1
X2
32–BIT V
CC
ACTIVE
COUNTER
V
CC
V
BAT
V
CCO
POWER
PROTOCOL BIT MAP
Figure 2
ACC
AVC
OSC2
OSC1
OSC0
CCC
CVC
RD
7
6
5
4
3
2
1
0
相关PDF资料 |
PDF描述 |
|---|---|
| DS1603 | Elapsed Time Counter Module(经过时间计数器模块) |
| DS1609 | Dual Port RAM(双端口RAM) |
| DS1610 | Partitioned NV Controller(分割式非易失性控制器) |
| DS1615 | Temperature Recorder(温度记录器) |
| DS1620 | Digital Thermometer and Thermostat(数字温度计和恒温控制器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1602+ | 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 |
| DS1602-7R | 制造商:Power-One 功能描述:DCDC - Bulk |
| DS1602N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Timer Circuit |
| DS16-02P | 制造商:Cooper Bussmann 功能描述:TOP SCREW-ON INSERTION BRIDGE, 2 POLE, F - Bulk 制造商:COOPER BUSSMANN 功能描述:TOP SCREW-ON INSERTION BRIDGE, 2 POLE, F |
| DS1602S | 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 |
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