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| 型號： | ADM1026JST-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Complete Thermal and System Management Controller |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數： | 13/56頁 |
| 文件大小： | 634K |
| 代理商： | ADM1026JST-REEL |
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ADM1026
Rev. A | Page 13 of 56
R/W
0
SCL
SDA
1
0
1
1
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
SLAVE
START BY
MASTER
FRAME 1
SLAVE ADDRESS
FRAME 2
COMMAND CODE
1
9
1
ACK. BY
SLAVE
9
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
SLAVE
STOP BY
MASTER
FRAME N
DATA BYTE
1
9
9
SCL
(CONTINUED)
SDA
(CONTINUED)
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
SLAVE
FRAME 3
DATA BYTE
1
0
Figure 17. General SMBus Write Timing Diagram
R/W
0
SCL
SDA
1
0
1
1
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
MASTER
START BY
MASTER
FRAME 1
SLAVE ADDRESS
FRAME 2
DATA BYTE
1
9
1
ACK. BY
SLAVE
9
D7
D6
D5
D4
D3
D2
D1
D0
NO ACK.
STOP BY
MASTER
FRAME N
DATA BYTE
1
9
9
SCL
(CONTINUED)
SDA
(CONTINUED)
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
MASTER
FRAME 3
DATA BYTE
1
0
Figure 18. General SMBus Read Timing Diagram
SMBus PROTOCOLS FOR RAM AND EEPROM
The ADM1026 contains volatile registers (RAM) and non-
volatile EEPROM. RAM occupies Addresses 00h to 6Fh, while
EEPROM occupies Addresses 8000h to 9FFFh.
Data can be written to and read from both RAM and EEPROM
as single data bytes and as block (sequential) read or write
operations of 32 data bytes, the maximum block size allowed by
the SMBus specification.
Data can only be written to unprogrammed EEPROM locations.
To write new data to a programmed location, it is first necessary
to erase it. EEPROM erasure cannot be done at the byte level;
the EEPROM is arranged as 128 pages of 64 bytes, and an entire
page must be erased. Note that of these 128 pages, only 124
pages are available to the user. The last four pages are reserved
for manufacturing purposes and cannot be erased/rewritten.
The EEPROM has three RAM registers associated with it,
EEPROM Registers 1, 2, and 3 at Addresses 06h, 0Ch, and 13h.
EEPROM Registers 1 and 2 are for factory use only. EEPROM
Register 3 sets up the EEPROM operating mode. Setting Bit 0 of
EEPROM Register 3 puts the EEPROM into read mode. Setting
Bit 1 puts it into programming mode. Setting Bit 2 puts it into
erase mode.
Only one of these bits must be set before the EEPROM may be
accessed. Setting no bits or more than one of them causes the
device to respond with No Acknowledge if an EEPROM read,
program, or erase operation is attempted.
It is important to distinguish between SMBus write opera-
tions, such as sending an address or command, and EEPROM
programming operations. It is possible to write an EEPROM
address over the SMBus, whatever the state of EEPROM
Register 3. However, EEPROM Register 3 must be correctly set
before a subsequent EEPROM operation can be performed. For
example, when reading from the EEPROM, Bit 0 of EEPROM
Register 3 can be set, even though SMBus write operations are
required to set up the EEPROM address for reading.
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相關代理商/技術參數 |
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| ADM1026JST-REEL7 | 功能描述:IC CNTRL SYS REF/EEPROM 48LQFP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADM1026JSTZ | 功能描述:PMIC 解決方案 HI INT SYS MONITR IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| ADM1026JSTZ-R7 | 功能描述:PMIC 解決方案 HI INT SYS MONITR IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| ADM1026JSTZ-REEL | 功能描述:板上安裝溫度傳感器 HI INT SYS MONITR IC RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADM1026JSTZ-REEL7 | 制造商:Analog Devices 功能描述:IC SYSTEM MONITOR 制造商:ON Semiconductor 功能描述:IC SYSTEM MONITOR |
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