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參數(shù)資料
| 型號(hào)： | DS2404 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP16 |
| 封裝： | 0.300 INCH, DIP-16 |
| 文件頁數(shù)： | 23/29頁 |
| 文件大?。?/td> | 760K |
| 代理商： | DS2404 |
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DS2404
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The “Power Control” section provides for two basic power configurations, battery operate mode and VCC
operate mode. The battery operate mode utilizes one supply connected to VBATO. The VCC operate mode
may utilize two supplies; the primary supply connects to VCC and a backup supply connects to VBATB.
DS2404 BLOCK DIAGRAM Figure 1
COMMUNICATION PORTS
Two communication ports are provided a 1-Wire and a 3-wire port. The advantages of using the 1-Wire
port are as follows: 1) provides access to the 64-bit lasered ROM, 2) consist of a single communication
signal (I/O), and 3) multiple devices may be connected to the 1-Wire bus. The 1-Wire bus has a
maximum data rate of 16.3k bits/second and requires one 5 k
external pull-up.
The 3-wire port consists of three signals, RST , CLK, and DQ. RST is an enable input, DQ is bidirectional
serial data, and the CLK input is used to clock in or out the serial data. The advantages of using the
3-wire port are 1) high data transfer rate (2 MHz), 2) simple timing, and 3) no external pull-up required.
Port selection is accomplished on a first-come, first-serve basis. Whichever port comes out of reset first
will obtain control. For the 3-wire port, this is done by bringing RST high. For the 1-Wire port, this is
done on the first falling edge of I/O after the reset and presence pulses. (See “1-Wire Signaling” section.)
More information on how to arbitrate port access is found in section “Device Operation Modes” later in
this document.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2405P | SPECIALTY MEMORY CIRCUIT, PDSO6 |
| DS2405 | SPECIALTY MEMORY CIRCUIT, PBCY3 |
| DS2405Z | SPECIALTY MEMORY CIRCUIT, PDSO4 |
| DS2406P | 1K X 1 OTPROM, PDSO6 |
| DS2406 | 1K X 1 OTPROM, PBCY3 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2404-001 | 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, DIP16 (GENERIC) - Rail/Tube |
| DS2404-001+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16PDIP - Rail/Tube |
| DS2404B | 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 |
| 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 |
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