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參數(shù)資料
| 型號(hào)： | DS2505 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Programmable ROM |
| 英文描述： | 16K X 1 OTPROM, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 18/24頁 |
| 文件大小： | 525K |
| 代理商： | DS2505 |
DS2505
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protocol has been satisfied. This protocol is described in the ROM functions flow chart (Figure 8). The
1-Wire bus master must first provide one of four ROM function commands: 1) Read ROM, 2) Match
ROM, 3) Search ROM, or 4) Skip ROM. After a ROM function sequence has been successfully
executed, the bus master may then provide any one of the memory function commands specific to the
DS2505 (Figure 5).
The 1-Wire CRC of the lasered ROM is generated using the polynomial X8 + X5 + X4 + 1. Additional
information about the Dallas Semiconductor 1-Wire Cyclic Redundancy Check is available in the Book
of DS19xx iButton Standards. The shift register acting as the CRC accumulator is initialized to 0. Then
starting with the least significant bit of the family code, one bit at a time is shifted in. After the 8th bit of
the family code has been entered, then the serial number is entered. After the 48th bit of the serial number
has been entered, the shift register contains the CRC value. Shifting in the 8 bits of CRC should return
the shift register to all zeroes.
DS2505 BLOCK DIAGRAM Figure 1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2506S | 64K X 1 OTPROM, PDSO8 |
| DS2506 | 64K X 1 OTPROM, PBCY3 |
| DS275E | LINE TRANSCEIVER, PDSO14 |
| DS275 | LINE TRANSCEIVER, PDIP8 |
| DS276S | LINE TRANSCEIVER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2505/T&R | 制造商:Maxim Integrated Products 功能描述:IC OTP 16KBIT TO92-3 |
| DS2505/T&R | 功能描述:可擦除可編程ROM RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| DS2505/TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16Kb Add-Only Memory |
| DS2505+ | 功能描述:可擦除可編程ROM 16Kb Add-Only Memory RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| DS2505+ | 制造商:Maxim Integrated Products 功能描述:IC EPROM 16KBIT SERIAL TO-92-3 |
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