参数资料
型号: LM89-1CIMMX
厂商: National Semiconductor
文件页数: 18/32页
文件大小: 0K
描述: IC TEMP SENSOR DGTL 8-MSOP
标准包装: 1
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: 0°C ~ 125°C
精确度: ±3°C(最小值)
拓扑: ADC(三角积分型),比较器,寄存器库
输出类型: 2 线 SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 3.6 V
工作温度: 0°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: 剪切带 (CT)
其它名称: *LM89-1CIMMX
LM89-1CIMMXCT
SNIS128C – AUGUST 2002 – REVISED MARCH 2013
Table 3. LOCAL and REMOTE TEMPERATURE REGISTERS (RTLB) (Read Only Address 10h):
BIT
Value
D7
0.5
D6
0.25
D5
0.125
D4
0
D3
0
D2
0
D1
0
D0
0
For RTLB D7–D5: Temperature Data. LSB = 0.125°C. Two's complement format.
The maximum value available from the Local Temperature register is 127; the minimum value available from the
Local Temperature register is -128. The maximum value available from the Remote Temperature register is
127.875; the minimum value available from the Remote Temperature registers is ? 128.875.
STATUS REGISTER (SR)
Table 4. STATUS REGISTER (SR) (Read Only Address 02h):
D7
Busy
D6
LHIGH
D5
LLOW
D4
RHIGH
D3
RLOW
D2
OPEN
D1
RCRIT
D0
LCRIT
Power up default is with all bits “0” (zero).
D0: LCRIT: When set to “1” indicates a Local Critical Temperature alarm.
D1: RCRIT: When set to “1” indicates a Remote Diode Critical Temperature alarm.
D2: OPEN: When set to “1” indicates a Remote Diode disconnect.
D3: RLOW: When set to “1” indicates a Remote Diode LOW Temperature alarm
D4: RHIGH: When set to “1” indicates a Remote Diode HIGH Temperature alarm.
D5: LLOW: When set to “1” indicates a Local LOW Temperature alarm.
D6: LHIGH: When set to “1” indicates a Local HIGH Temperature alarm.
D7: Busy: When set to “1” ADC is busy converting.
CONFIGURATION REGISTER
Table 5. CONFIGURATION REGISTER (Read Address 03h /Write Address 09h):
D7
ALERT mask
D6
RUN/STOP
D5
0
D4
Remote
D3
0
D2
Local
D1
0
D0
Fault Queue
T_CRIT_A
mask
T_CRIT_A
mask
Power up default is with all bits “0” (zero)
D7: ALERT mask: When set to “1” ALERT interrupts are masked.
D6: RUN/STOP: When set to “1” SHUTDOWN is enabled.
D5: is not defined and defaults to “0”.
D4: Remote T_CRIT mask: When set to “1” a diode temperature reading that exceeds T_CRIT setpoint will not
activate the T_CRIT_A pin.
D3: is not defined and defaults to “0”.
D2: Local T_CRIT mask: When set to “1” a Local temperature reading that exceeds T_CRIT setpoint will not
activate the T_CRIT_A pin.
D1: is not defined and defaults to “0”.
D0: Fault Queue: when set to “1” three consecutive remote temperature measurements outside the HIGH, LOW,
or T_CRIT setpoints will trigger an “Outside Limit” condition resulting in setting of status bits and associated
output pins..
18
Product Folder Links: LM89
Copyright ? 2002–2013, Texas Instruments Incorporated
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