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參數(shù)資料
| 型號(hào)： | DS1603 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, SIP7 |
| 封裝： | SIP-7 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 104K |
| 代理商： | DS1603 |
1 of 8
080299
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
§ Powered internally by a lithium energy cell
that provides over 10 years of operation
§ 1-byte protocol defines read/write, counter
address and software clear function
§ Self-contained crystal provides an accuracy of
±2 min per month
§ Operating temperature range of 0°C to 70°C
§ Low profile SIP module
PIN ASSIGNMENT
PIN DESCRIPTION
RST
- Reset
CLK
- Clock
DQ
- Data Input/Output
GND
- Ground
VCC
- +5 Volts
OSC
- 1 Hz Oscillator Output
NC
- No Connect
DESCRIPTION
The DS1603 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 DS1603 is used. Alternatively, this counter can also be used under software
control to record real time events. Communication to and from the DS1603 takes place via a 3–wire
serial port. A 1-byte protocol selects read/ write functions, counter clear functions and oscillator trim. The
device contains a 32.768 kHz crystal which will keep track of time to within
±2 min/mo. An internal
lithium energy source contains enough energy to power the continuous seconds counter for over 10 years.
OPERATION
The main elements of the DS1603 are shown in Figure 1. As shown, communications to and from the
elapsed time counter occur over a 3–wire serial port. The port is activated by driving RST to a high state.
With RST at high level 8 bits are loaded into the protocol shift register providing read/write, register
select, register clear, and oscillator trim information. Each bit is serially input on the rising edge of the
DS1603
Elapsed Time Counter Module
www.dalsemi.com
1
2
3
4
5
6
7
VCC
RST
DQ
NC
CLK
OSC
GND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1603+ | 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1603J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TRI-STATE Dual Receiver |
| DS1603J/883 | 制造商:National Semiconductor Corporation 功能描述:Dual Receiver 14-Pin CDIP |
| DS1603N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Timer Circuit |
| DS16-03P | 制造商:Cooper Bussmann 功能描述:TOP SCREW-ON INSERTION BRIDGE, 3 POLE, F - Bulk 制造商:COOPER BUSSMANN 功能描述:TOP SCREW-ON INSERTION BRIDGE, 3 POLE, F |
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