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參數(shù)資料
| 型號(hào)： | DS1685Q-3+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 23/34頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC 3V 64-BIT Y2KC 28-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 類型： | 時(shí)鐘/日歷 |
| 特點(diǎn)： | 警報(bào)器，NVSRAM，方波輸出，Y2K |
| 存儲(chǔ)容量： | 242B |
| 時(shí)間格式： | HH:MM:SS（12/24 小時(shí)） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 并聯(lián) |
| 電源電壓： | 2.7 V ~ 3.7 V |
| 電壓 - 電源，電池： | 2.5 V ~ 3.7 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
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DS1685/DS1687 3V/5V Real-Time Clocks
3 of 34
DETAILED DESCRIPTION
The DS1685/DS1687 are real-time clocks (RTC) designed as successors to the industry-standard DS1285,
DS1385, DS1485, and DS1585 PC RTCs. These devices provide the industry-standard DS1285 clock function with
either +3.0V or +5.0V operation. The DS1685 also incorporates a number of enhanced features including a silicon
serial number, power-on/off control circuitry, 242 bytes of user NV SRAM, and 32.768kHz output for sustaining
power management activities.
The DS1685/DS1687 power-control circuitry allows the system to be powered on by an external stimulus such as a
keyboard or by a time and date (wake-up) alarm. The PWR output pin can be triggered by one or either of these
events, and can be used to turn on an external power supply. The PWR pin is under software control, so that when
a task is complete, the system power can then be shut down.
The DS1685 is a clock/calendar chip with the features described above. An external crystal and battery are the
only components required to maintain time-of-day and memory status in the absence of power. The DS1687
incorporates the DS1685 chip, a 32.768kHz crystal, and a lithium battery in a complete, self-contained timekeeping
EDIP. The entire unit is fully tested at Maxim Integrated such that a minimum of 10 years of timekeeping and data
retention in the absence of VCC is guaranteed.
OPERATION
The block diagram in Figure 1 shows the pin connections with the major internal functions of the DS1685/DS1687.
The following paragraphs describe the function of each pin.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1685Q-5 | 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 |
| DS1685Q-5/T&R | 制造商:Maxim Integrated Products 功能描述:IC RTC 5V 64-BIT Y2KC 28-PLCC |
| DS1685Q-5/T&R | 功能描述:實(shí)時(shí)時(shí)鐘 3V/5V RTC 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 |
| DS1685Q-5/TR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clocks |
| DS1685Q-5_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3V/5V Real-Time Clocks |
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