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參數(shù)資料
| 型號： | MAX16049ATN+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 8-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC56 |
| 封裝： | 8 X 8 MM, ROHS COMPLIANT, TQFN-56 |
| 文件頁數(shù)： | 39/61頁 |
| 文件大?。?/td> | 790K |
| 代理商： | MAX16049ATN+ |
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MAX16047A/MAX16049A
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
44
______________________________________________________________________________________
I2C/SMBus-Compatible
Serial Interface
The MAX16047A/MAX16049A feature an I2C/SMBus-
compatible 2-wire serial interface consisting of a serial
data line (SDA) and a serial clock line (SCL). SDA and
SCL facilitate bidirectional communication between the
MAX16047A/MAX16049A and the master device at
clock rates up to 400kHz. Figure 1 shows the 2-wire
interface timing diagram. The MAX16047A/MAX16049A
are transmit/receive slave-only devices, relying upon a
master device to generate a clock signal. The master
device (typically a C) initiates a data transfer on the
bus and generates SCL to permit that transfer.
A master device communicates to the MAX16047A/
MAX16049A by transmitting the proper address followed
by command and/or data words. The slave address
input, A0, is capable of detecting four different states,
allowing multiple identical devices to share the same seri-
al bus. The slave address is described further in the
Slave Address section. Each transmit sequence is framed
by a START (S) or REPEATED START (SR) condition and
a STOP (P) condition. Each word transmitted over the bus
is 8 bits long and is always followed by an acknowledge
pulse. SCL is a logic input, while SDA is an open-drain
input/output. SCL and SDA both require external pullup
resistors to generate the logic-high voltage. Use 4.7k
for
most applications.
Bit Transfer
Each clock pulse transfers one data bit. The data on
SDA must remain stable while SCL is high (Figure 9);
otherwise the MAX16047A/MAX16049A registers a
START or STOP condition (Figure 10) from the master.
SDA and SCL idle high when the bus is not busy.
START and STOP Conditions
Both SCL and SDA idle high when the bus is not busy.
A master device signals the beginning of a transmis-
sion with a START condition by transitioning SDA from
high to low while SCL is high. The master device issues
a STOP condition by transitioning SDA from low to high
while SCL is high. A STOP condition frees the bus for
another transmission. The bus remains active if a
REPEATED START condition is generated, such as in
the block read protocol (see Figure 1).
Early STOP Conditions
The MAX16047A/MAX16049A recognize a STOP condi-
tion at any point during transmission except if a STOP
condition occurs in the same high pulse as a START
condition. This condition is not a legal I2C format; at least
one clock pulse must separate any START and STOP
condition.
REPEATED START Conditions
A REPEATED START may be sent instead of a STOP
condition to maintain control of the bus during a read
operation. The START and REPEATED START condi-
tions are functionally identical.
DATA LINE STABLE,
DATA VALID
SDA
SCL
CHANGE OF
DATA ALLOWED
Figure 9. Bit Transfer
P
S
START
CONDITION
SDA
SCL
STOP
CONDITION
Figure 10. START and STOP Conditions
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX16049ATN+ | 功能描述:監(jiān)控電路 8Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16049ATN+T | 功能描述:監(jiān)控電路 8Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16049ETN+ | 功能描述:監(jiān)控電路 8Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16049ETN+T | 功能描述:監(jiān)控電路 8Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX1604EAI | 功能描述:電源開關(guān) IC - 配電 RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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