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| 型号： | MAX16046ATN+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 49/70页 |
| 文件大小： | 0K |
| 描述： | IC EE-PROG SYS MGR 12CH 56-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 37 |
| 类型： | 系统管理器 |
| 监视电压数目： | 12 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-TQFN-EP（8x8） |
| 包装： | 托盘 |
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MAX16046/MAX16048
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
I 2 C/SMBus-Compatible
Serial Interface
The MAX16046/MAX16048 feature an I 2 C/SMBus-com-
patible 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
MAX16046/MAX16048 and the master device at clock
rates up to 400kHz. Figure 1 shows the 2-wire interface
timing diagram. The MAX16046/MAX16048 are trans-
mit/receive slave-only devices, relying upon a master
device to generate a clock signal. The master device
(typically a microcontroller) initiates a data transfer on
the bus and generates SCL to permit that transfer.
A master device communicates to the MAX16046/
MAX16048 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 Ω for
most applications.
SDA
SCL
Bit Transfer
Each clock pulse transfers one data bit. The data on
SDA must remain stable while SCL is high (Figure 9);
otherwise the MAX16046/MAX16048 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 MAX16046/MAX16048 recognize a STOP condition
at any point during transmission except if a STOP condi-
tion occurs in the same high pulse as a START condition.
This condition is not a legal I 2 C 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.
SDA
SCL
S
P
DATA LINE STABLE,
DATA VALID
CHANGE OF
DATA ALLOWED
START
CONDITION
STOP
CONDITION
Figure 9. Bit Transfer
Maxim Integrated
Figure 10. START and STOP Conditions
49
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16046ATN+ | 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16046ATN+T | 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16046ECB+ | 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16046ECB+T | 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16046ETN+ | 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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