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| 型號(hào)： | MIC284-1BMM |
| 廠商： | MICREL INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | Two-Zone Thermal Supervisor Advance Information |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 439K |
| 代理商： | MIC284-1BMM |
MIC284
Functional Diagram
Micrel
MIC284
6
September 29, 2000
FUNCTIONAL DESCRIPTION
Pin Descriptions
VDD:
Power supply input. See electrical specifications.
GND
: Ground return for all MIC284 functions.
CLK
: Clock input to the MIC284 from the two-wire serial bus.
The clock signal is provided by the 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 bi-directional and has an open-drain output
driver. An external pull-up resistor or current source some-
where in the system is necessary on this line. This line is
shared by all devices on the bus.
A0
: This inputs sets the least significant bit of the MIC284
’
s
7-bit slave address. The six most-significant bits are fixed
and are determined by the part number ordered. (See order-
ing information table above.) Each MIC284 will only respond
to its own unique slave address, allowing up to eight MIC284s
to share a single bus. A match between the MIC284
’
s
address and the address specified in the serial bit stream
must be made to initiate communication. A0 should be tied
directly to VDD or ground. See "Temperature Measurement
2:1
MUX
TEMPERATURCONVERTER
∑
∫
1-Bit
DAC
A0
DATA
VDD
MIC284
CLK
/CRIT
GND
2-Wire
Serial Bus
Interface
Temperature
Hysteresis
Registers
State
Machine
and
Digital
Comparator
Digital Filter
and
Control
Logic
Open-Drain
Output
Configuration
Register
Bandgap
Sensor
and
Reference
Result
Registers
T_SET & /CRIT
Setpoint
Registers
T1
/INT
Pointer
Register
and Power On" for more information. A0 determines the slave
address as shown in Table 1:
r
e
b
m
u
N
t
a
P
s
u
0
A
0
p
n
s
x
s
e
8
e
H
4
h
9
4
h
A
4
r
d
d
A
e
v
a
S
4
y
0
8
r
2
a
0
1
C
I
n
B
0
0
M
0
8
2
C
I
M
0
1
b
1
1
0
0
1
0
0
1
b
1
8
2
C
I
M
0
0
1
0
1
0
0
1
b
h
1
1
1
0
1
0
0
1
b
B
4
h
2
8
2
C
I
M
0
0
0
1
1
0
0
1
b
C
4
h
1
1
0
1
1
0
0
1
b
D
4
h
3
8
2
C
I
M
0
0
1
1
1
0
0
1
b
E
4
h
1
1
1
1
1
0
0
1
b
F
4
h
Table 1. MIC284 Slave Address Settings
/INT
: Temperature events are indicated to external circuitry
via this output. Operation of the /INT output is controlled by
the MODE and IM bits in the MIC284
’
s configuration register.
See "Comparator and Interrupt Modes" below. This output is
open-drain and may be wire-OR
’
ed 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 configuration register is
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