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參數(shù)資料
| 型號： | DS1305EN |
| 英文描述： | Serial Alarm Real Time Clock RTC |
| 中文描述： | 串行實時時鐘鬧鐘時鐘 |
| 文件頁數(shù)： | 3/22頁 |
| 文件大?。?/td> | 257K |
| 代理商： | DS1305EN |
DS1305
3 of 22
DS1305 BLOCK DIAGRAM
Figure 1
SIGNAL DESCRIPTIONS
V
CC1
- DC power is provided to the device on this pin. V
CC1
is the primary power supply.
V
CC2
- This is the secondary power supply pin. In systems using the trickle charger, the rechargeable
energy source is connected to this pin.
V
BAT
- Battery input for any standard 3-volt lithium cell or other energy source.
V
CCIF
(Interface Logic Power Supply Input)
- The V
CCIF
pin allows the DS1305 to drive SDO and
PF
out-put pins to a level that is compatible with the interface logic, thus allowing an easy interface to 3-volt
logic in mixed supply systems. This pin is physically connected to the source connection of the p-channel
transistors in the output buffers of the SDO and
PF
pins.
SERMODE (Serial Interface Mode Input)
-
The SERMODE
pin offers the flexibility to choose
between two serial interface modes. When connected to GND, standard 3-wire communication is
selected. When connected to V
CC
, Motorola SPI communication is selected.
SCLK (Serial Clock Input)
- SCLK is used to synchronize data movement on the serial interface for
either the SPI or 3-wire interface.
SDI (Serial Data Input)
- When SPI communication is selected, the SDI pin is the serial data input for
the SPI bus. When 3-wire communication is selected, this pin must be tied to the SDO pin (the SDI and
SDO pins function as a single I/O pin when tied together).
SDO (Serial Data Output)
- When SPI communication is selected, the SDO pin is the serial data output
for the SPI bus. When 3-wire communication is selected, this pin must be tied to the SDI pin (the SDI
and SDO pins function as a single I/O pin when tied together).
相關(guān)PDF資料 |
PDF描述 |
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| DS1305 | Serial Alarm Real Time Clock RTC |
| DS1305E | Serial Alarm Real Time Clock RTC |
| DS1305N | Serial Alarm Real Time Clock RTC |
| DS1306EN | Serial Alarm Real Time Clock RTC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1305EN/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Alarm Real-Time Clock |
| DS1305EN/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Serial Alarm Real-Time Clock |
| DS1305EN/T&R | 制造商:Maxim Integrated Products 功能描述:SERIAL ALARM RTC 20P TSSOP IND T&R - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC RTC SERIAL ALARM IND 20-TSSOP 制造商:Maxim Integrated Products 功能描述:IC RTC YY-MM-DD 96 X 8 TSS 制造商:Maxim Integrated Products 功能描述:Real Time Clock Serial Alarm RTC 3-Wire |
| DS1305EN/T&R | 功能描述:實時時鐘 Serial Alarm RTC 3-Wire 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 時間格式:HH:MM:SS RTC 存儲容量: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 |
| DS1305EN/TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Serial Alarm Real-Time Clock |
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