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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： | 1/9页 |
| 文件大小： | 70K |
| 代理商： | DS1602 |
DS1602
Elapsed Time Counter
DS1602
042298 1/9
FEATURES
Two 32–bit counters keep track of real time and
elapsed time
Counters keep track of seconds for over 125 years
Battery powered counter counts seconds from the
time battery is attached until V
BAT
is less than 2.5 volts
V
CC
powered counter counts seconds while V
CC
is
above 4.25 volts and retains the count in the absence
of V
CC
under battery backup power
Clear function resets selected counter to zero
Read/Write serial port affords low pin count
Maximum current drain of less than 1
μ
A from V
BAT
pin when serial port is disabled
One byte protocol defines read/write, counter ad-
dress and software clear function
8–pin DIP or optional 8–pin SOIC
Operating temperature range of –40
°
C to +85
°
C
Reduced performance operation down to V
CC
= 2.5V
PIN ASSIGNMENT
8
7
6
5
V
CC
X1
X2
V
BAT
RST
DQ
CLK
GND
1
2
3
4
DS1602
8–PIN DIP (300 MIL)
V
CC
X1
X2
V
BAT
RST
DQ
CLK
GND
1
2
3
4
8
7
6
5
DS1602
8–PIN SOIC (200 MIL)
PIN DESCRIPTION
RST
CLK
DQ
GND
X1, X2
V
BAT
V
CC
– Reset
– Clock
– Data input/output
– Ground
– Crystal inputs
– + Battery input
– +5 volts
DESCRIPTION
The DS1602 is a real time clock/elapsed time counter
designed to count seconds when V
CC
power is applied
and continually count seconds under battery backup
power with an additional counter regardless of the con-
dition of V
CC
. The continuous counter can be used to
derive time of day, week, month, and year by using a
software algorithm. The V
CC
powered counter will auto-
matically record the amount of time that V
CC
power is
applied. This function is particularly useful in determin-
ing the operational time of equipment in which the
DS1602 is used. Alternatively, this counter can also be
used under software control to record real time events.
Communication to and from the DS1602 takes place via
a 3–wire serial port. A one byte protocol selects read/
write functions, counter clear functions and oscillator
trim. A low cost 32.768 KHz crystal attaches directly to
the X1 and X2 pins. If battery powered only operation is
desired, the V
BAT
pin must be grounded and the V
CC
pin
must be connected to the battery.
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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