參數(shù)資料
型號: MCP9808T-E/MS
廠商: Microchip Technology
文件頁數(shù): 5/52頁
文件大小: 1085K
描述: IC TEMP SENSOR DGTL I2C 8MSOP
標(biāo)準(zhǔn)包裝: 2,500
功能: 溫度監(jiān)控系統(tǒng)(傳感器)
傳感器類型: 內(nèi)部
感應(yīng)溫度: -40°C ~ 125°C
精確度: ±1°C
拓?fù)洌?/td> ADC(三角積分型),寄存器庫
輸出類型: 2 線串行,I²C?/SMBUS?
輸出警報:
輸出風(fēng)扇:
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
?2011 Microchip Technology Inc.
DS25095A-page 5
MCP9808
TIMING DIAGRAM
SENSOR SERIAL INTERFACE TIMING SPECIFICATIONS
Electrical Specifications: Unless otherwise indicated, V
DD
 = 2.7V to 5.5V, T
A
 = -40癈 to +125癈, GND = Ground
and C
L
 = 80 pF. (Note 1)
Parameters
Sym
Min
Max
Units
Conditions
2-Wire SMBus/Standard Mode I
2
C" Compatible Interface (Note 1)
Serial Port Clock Frequency
f
SC
0
400
kHz
(Note 2, 4)
Low Clock
t
LOW
1300

ns
(Note 2)
High Clock
t
HIGH
600

ns
(Note 2)
Rise Time
t
R
20
300
ns
Fall Time
t
F
20
300
ns
Data in Setup Time
t
SU-DI
100

ns
(Note 3)
Data In Hold Time
t
HD-DI
0

ns
(Note 5)
Data Out Hold Time
t
HD-DO
200
900
ns
(Note 4)
Start Condition Setup Time
t
SU-START
600

ns
Start Condition Hold Time
t
HD-START
600

ns
Stop Condition Setup Time
t
SU-STOP
600

ns
Bus Free
t
B-FREE
1300

ns
Time-out
t
OUT
25
35
ms
Bus Capacitive Load
C
b

400
pf
Note  1:   All values referred to V
IL MAX
 and V
IH MIN
 levels.
2:   If t
LOW
 > t
OUT
 or t
HIGH
 > t
OUT
, the temperature sensor I
2
C interface will time-out. A Repeat Start command
is required for communication.
3:   This device can be used in a Standard mode I
2
C bus system, but the requirement, t
SU-DI
 e 100 ns, must
be met. This device does not stretch the SCL Low time.
4:   As a transmitter, the device provides internal minimum delay time, t
HD-DO MIN
, to bridge the undefined
region (min. 200 ns) of the falling edge of SCL, t
F MAX
, to avoid unintended generation of Start or Stop
conditions.
5:   As a receiver, SDA should not be sampled at the falling edge of SCL. SDA can transition t
HD-DI
 0 ns after
SCL toggles Low.
t
SU-START
t
HD-START
t
SU-DI
t
SU-STOP
t
B-FREE
SCL
SDA
t
HD-DI/
t
HD-DO
t
HIGH
t
LOW
t
OUT
t
R
, t
F
START Condition
Data Transmission
STOP Condition
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