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参数资料
| 型号： | MIC184YMM |
| 厂商： | Micrel Inc |
| 文件页数： | 6/20页 |
| 文件大小： | 483K |
| 描述： | IC SUPERVISOR LOCAL/REMOTE 8MSOP |
| 标准包装： | 100 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部和外部 |
| 感应温度： | -55°C ~ 125°C，外部传感器 |
| 精确度： | ±2°C 本地（最大），±3°C 远程（最大） |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
| 产品目录页面： | 1083 (CN2011-ZH PDF) |
| 其它名称： | 576-2134 MIC184YMM-ND |
MIC184
Micrel
MIC184
6
May 2006
Functional Description
Pin Descriptions
VDD
Power supply input. See electrical specications.
GND
Ground return for all MIC184 functions.
CLK
Clock input to the MIC184 from the two-wire serial bus. The
clock signal is provided by the bus host and is shared by all
devices on the bus.
DATA
Serial data I/O pin that connects to the two-wire serial bus.
DATA is bidirectional and has an open-drain output driver.
An external pull-up resistor or current source somewhere in
the system is necessary on this line. This line is shared by
all devices on the bus.
A2/T1, A1, A0
These inputs set the three least signicant bits of the MIC184s
7-bit slave address. Each MIC184 will only respond to its own
unique slave address, allowing the use of up to eight MIC184s
on a single bus. A match between the MIC184s address and
Functional Diagram
2:1
MUX
TEMPERATURE-TO-DIGITAL
CONVERTER
1-Bit
DAC
2/T1
A1
A0
DATA
MIC184
CLK
INT
2-Wire
Serial Bus
Interface
Pointer
Register
Temperature
Hysteresis
Register
State
Machine
and
Digital
Comparator
Digital Filter
and
Control
Logic
Thermostat
Output
Configuration
Register
Bandgap
Sensor
and
Reference
Result
Register
Temperature
Setpoint
Register
the address specied in the serial bit stream must be made
to initiate communication. A1 and A0 should be connected
directly to V
DD
or ground. When A2/T1 is used as an address
bit input, it should also be tied to V
DD
or ground. A2/T1 can
alternatively connect to a remote temperature sensor. When
A2/T1 is used for temperature measurements, an off-chip di-
ode junction must be connected between A2/T1 and ground. In
this case, internal circuitry will detect A2 as logic low, leaving
four possible slave addresses. See Temperature Measure-
ment and Power On for more information. A2/T1, A1, and
A0 determine the slave address as shown in Table 1.
INT
Temperature events are indicated to external circuitry via this
output. INT may be congured as active-low or active-high
by the host. Operation of the INT output is controlled by the
MODE and POL bits in the MIC184s conguration register.
See Comparator and Interrupt Modes below. This output
is open-drain and may be wire-ORed with other open-drain
signals. Most systems will require a pull-up resistor or current
source on this pin. If the IM bit in the conguration register
is set, it prevents the INT output from sinking current. In
I
2
C and SMBus systems, the IM bit is therefore an interrupt
mask bit.
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