參數(shù)資料
型號(hào)： DS1852B-000
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 22/26頁(yè)
文件大?。?/td> 0K
描述： IC MONITOR TXRX OPTICAL 25-BGA
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 640
類型： 收發(fā)器
電源電壓： 2.7 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 25-TFBGA，CSPBGA
供應(yīng)商設(shè)備封裝： 25-BGA（5x5）
包裝： 托盤(pán)
DS1852
5 of 26
DEVICE OPERATION
Security
To prevent accidental overwrites of key device data, a data lockout feature is incorporated. A 32-bit
password provides access to the “manufacturer” memory locations. These locations are in addition to the
unprotected “user” memory locations:
1) User—This is the default state after power-up; it allows read access to standard IEEE identity table
and standard monitoring and status functions.
2) Manufacturer Level 1—This allows access to customer data table and some selected setups (password
1).
3) Manufacturer Level 2—This allows access to all memory, settings, and features (password 2).
The level 1 password is located in Table 03h EEPROM (bytes D3h to D6h) and may be changed by
gaining access through the level 2 password.
The level 2 password is set in protected EEPROM and is programmed during factory test.
During power-up, the 32-bit password entry (addresses 7Bh to 7Eh) is set to all 1s. This is the value that
is compared to the level 1 password entry in Table 03h to grant level 1 access. Therefore, the level 1
password should not be set to all 1s or the user will gain level 1 access after each power-on.
By default, both passwords are factory preset to 00h.
To gain access to a security level, a 4-byte password is written into Table 00h, bytes 7Bh to 7Eh. If the
written data matches one of the passwords, that corresponding level of access is granted until the
password entry is changed or the power is cycled. Entering the level 2 password allows access to both
the level 1 data and the level 2 data. The 4-byte password is write-only.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1852B-000/C 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
DS1852B-000/T&R 制造商:Maxim Integrated Products 功能描述:IC MONITOR TXRX OPTICAL 25-BGA
DS1852B-000/T&R 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
DS1852B-000+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Optical Transceiver Diagnostic Monitor RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
DS1852B-000+T&R 制造商:Maxim Integrated Products 功能描述:OPTICAL TRNSCVR 25BGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR TXRX OPTICAL 25-BGA 制造商:Maxim Integrated Products 功能描述:Data Converter ICs - Various Optical Transceiver Diagnostic Monitor
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