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參數(shù)資料
| 型號： | DS2404B |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO16 |
| 封裝： | 0.208 INCH, SSOP-16 |
| 文件頁數(shù)： | 16/31頁 |
| 文件大?。?/td> | 1591K |
| 代理商： | DS2404B |
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DS2404
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Battery Operate Mode
Figure 17 shows the necessary connections for operating the DS2404 in Battery Operate mode.
BATTERY OPERATE MODE Figure 17
VCC
Pin 1 & 16
Ground
VBATB
Pin 9
Ground
VBATO
Pin 10
2.8 to 5.5V
The VBATO pin is normally connected to any standard 3 V lithium cell or other energy source. The Battery
Operate mode also minimizes the power-consumption in applications where battery backup is not
required and the VBATO lead is directly connected to the system’s 5V supply.
NOTE:
In Battery Operate mode, the voltage on DQ must never exceed the voltage on VBATO if the 3-wire
interface is used. This restriction does not apply to the 1-Wire interface.
DEVICE OPERATION MODES
With its two ports and two power modes the DS2404 can be operated in several ways. While the
maximum voltage on the 1-Wire port (I/O) is always 6V, the maximum voltage on the 3-wire port (DQ)
depends on the power mode and actual operating voltage. A particular port is selected by setting the
control lines to a state that makes the other port inactive. See Table 1 for details.
When using the 3-wire port only and the DS2404 is wired for VCC Operate Mode (Battery Backed) the
1 Wire I/O pin can be used as counter input. This mode requires that the I/O lead is connected to VCC
through a 5k
Ω (typical) resistor. To enable communication through the 3-wire port a reset/presence
sequence has to be performed on the 1-Wire port after the system has powered up.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2404 | 0 TIMER(S), REAL TIME CLOCK, PDIP16 |
| DS2405P | SPECIALTY MEMORY CIRCUIT, PDSO6 |
| DS2405 | SPECIALTY MEMORY CIRCUIT, PBCY3 |
| DS2405Z | SPECIALTY MEMORY CIRCUIT, PDSO4 |
| DS2406P | 1K X 1 OTPROM, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2404B/T&R | 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, SSOP16-TRL (GENERIC) - Tape and Reel |
| DS2404B+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Rail/Tube |
| DS2404B+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Tape and Reel |
| DS2404FP000 | 制造商:Thomas & Betts 功能描述:200A,CON,3P4W,MG,404,3P480V |
| DS2404FP000/DF2029 | 制造商:Thomas & Betts 功能描述:RS DS2404FP000/DF2029 200A,CON,3P4W |
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