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参数资料
| 型号： | DS1602 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 1/10页 |
| 文件大小： | 123K |
| 代理商： | DS1602 |
1 of 10
070199
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 VBAT is less
than 2.5 volts
§ V
CC powered counter counts seconds while
VCC is above 4.25 volts and retains the count
in the absence of VCC under battery backup
power
§ Clear function resets selected counter to 0
§ Read/Write serial port affords low pin count
§ Maximum current drain of less than 1 A
from VBAT pin when serial port is disabled
§ One byte protocol defines read/write, counter
address 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
PIN DESCRIPTION
RST
- Reset
CLK
- Clock
DQ
- Data Input/Output
GND
- Ground
X1, X2
- Crystal Inputs
VBAT
- + Battery Input
VCC
- +5 Volts
DESCRIPTION
The DS1602 is a real time clock/elapsed time counter designed to count seconds when VCC power is
applied and continually count seconds under battery backup power with an additional counter regardless
of the condition of VCC. The continuous counter can be used to derive time of day, week, month, and year
by using a software algorithm. The VCC powered counter will automatically record the amount of time
that VCC power is applied. This function is particularly useful in determining 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 1-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 VBAT pin must be grounded and the VCC pin must be connected to the battery.
DS1602
8-Pin SOIC (200-mil)
DS1602
8-Pin DIP (300-mil)
DS1602
Elapsed Time Counter
www.dalsemi.com
VCC
VBAT
X1
X2
RST
DQ
CLK
GND
1
2
3
4
8
7
6
5
RST
DQ
CLK
GND
VCC
VBAT
X1
X2
1
2
3
4
8
7
6
5
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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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