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參數資料
| 型號： | ADM1066ASU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Multisupply Supervisor/Sequencer with Margining Control and Auxiliary ADC Inputs |
| 中文描述： | 10-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48 |
| 封裝： | 7 X 7 MM, PLASTIC, MS-026ABC, TQFP-48 |
| 文件頁數： | 27/32頁 |
| 文件大小： | 861K |
| 代理商： | ADM1066ASU |
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ADM1066
Rev. 0 | Page 27 of 32
9
0
1
9
9
1
1
9
1
START BY
MASTER
ACK. BY
SLAVE
ACK. BY
MASTER
ACK. BY
MASTER
NO ACK.
FRAME 2
DATA BYTE
FRAME 1
SLAVE ADDRESS
FRAME N
DATA BYTE
FRAME 3
DATA BYTE
SCL
SDA
R/W
STOP
BY
MASTER
SCL
(CONTINUED)
SDA
(CONTINUED)
D7
A0
A1
1
1
1
0
0
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Figure 37. General SMBus Read Timing Diagram
0
SCL
SDA
P
S
S
P
t
SU;STO
t
HD;STA
t
SU;STA
t
SU;DAT
t
HD;DAT
t
HD;STA
t
HIGH
t
BUF
t
LOW
t
R
t
F
Figure 38. Serial Bus Timing Diagram
SMBus Protocols for RAM and EEPROM
The ADM1066 contains volatile registers (RAM) and nonvola-
tile registers (EEPROM). User RAM occupies address locations
from 0x00 to 0xDF; EEPROM occupies addresses from 0xF800
to 0xFBFF.
Data can be written to and read from both RAM and EEPROM
as single data bytes. Data can be written only to unprogrammed
EEPROM locations. To write new data to a programmed loca-
tion, it must first be erased. EEPROM erasure cannot be done at
the byte level. The EEPROM is arranged as 32 pages of 32 bytes
each, and an entire page must be erased.
Page erasure is enabled by setting Bit 2 in the UPDCFG register
(Address 0x90) to 1. If this bit is not set, page erasure cannot
occur, even if the command byte (0xFE) is programmed across
the SMBus.
WRITE OPERATIONS
The SMBus specification defines several protocols for different
types of read and write operations. The following abbreviations
are used in the diagrams:
S
P
R
W
A
A
Start
Stop
Read
Write
Acknowledge
No acknowledge
The ADM1066 uses the following SMBus write protocols.
Send Byte
In a send byte operation, the master device sends a single
command byte to a slave device, as follows:
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by the
write bit (low).
3.
The addressed slave device asserts ACK on SDA.
4.
The master sends a command code.
5.
The slave asserts ACK on SDA.
6.
The master asserts a stop condition on SDA and the
transaction ends.
In the ADM1066, the send byte protocol is used for two
purposes:
To write a register address to RAM for a subsequent single
byte read from the same address, or a block read or write
starting at that address, as shown in Figure 39.
0
2
4
1
3
SLAVE
ADDRESS
REGISTER
ADDRESS
(0x00 TO 0xDF)
S
W
A
A
5
6
P
Figure 39. Setting a RAM Address for Subsequent Read
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| ADM1066ASUZ | 功能描述:IC SUPERVISOR/SEQUENCER 48-TQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:Super Sequencer® 其它有關文件:STM6905 View All Specifications 標準包裝:1 系列:- 類型:多壓監控器 監視電壓數目:5 輸出:開路漏極或開路集電極 復位:低有效 復位超時:最小為 140 ms 電壓 - 閥值:2.188V，2.955V，可調，可調，可調 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-TSSOP 包裝:Digi-Reel® 產品目錄頁面:1197 (CN2011-ZH PDF) 其它名稱:497-8728-6 |
| ADM1066ASUZ-REEL | 功能描述:IC SEQUENCER/SUPERVISOR 48TQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:Super Sequencer® 標準包裝:1 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:高有效 復位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應商設備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
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