參數(shù)資料
型號(hào)： LM75BDP
廠商： NXP Semiconductors N.V.
元件分類： 工業(yè)控制
英文描述： Digital temperature sensor and thermal watchdog
封裝： LM75BD<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<Always Pb-free,;LM75BD<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<Always Pb-free,;
文件頁(yè)數(shù)： 20/29頁(yè)
文件大小： 164K
代理商： LM75BDP
LM75B_2
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 02 — 9 December 2008
20 of 29
NXP Semiconductors
LM75B
Digital temperature sensor and thermal watchdog
12. Dynamic characteristics
[1]
These specifications are guaranteed by design and not tested in production.
[2]
This is the SDA time LOW for reset of serial interface.
[3]
Holding the SDA line LOW for a time grater than t
to
will cause the LM75B to reset SDA to the idle state of the serial bus communication
(SDA set HIGH).
Table 18.
V
CC
= 2.8 V to 5.5 V; T
amb
=
55
°
C to +125
°
C; unless otherwise specified.
Symbol
Parameter
f
SCL
SCL clock frequency
t
HIGH
HIGH period of the SCL clock
t
LOW
LOW period of the SCL clock
t
HD;STA
hold time (repeated) START condition
t
SU;DAT
data set-up time
t
HD;DAT
data hold time
t
SU;STO
set-up time for STOP condition
t
f
fall time
I
2
C-bus interface dynamic characteristics
[1]
Conditions
see
Figure 19
Min
0.02
0.6
1.3
100
100
0
100
-
Typ
-
-
-
-
-
-
-
250
Max
400
-
-
-
-
-
-
-
Unit
kHz
μ
s
μ
s
ns
ns
ns
ns
ns
SDA and OS outputs;
C
L
= 400 pF; I
OL
= 3 mA
t
to
time-out time
[2][3]
75
-
200
ms
Fig 19. Timing diagram
SDA
SCL
002aab271
t
f
S
Sr
P
S
t
HD;STA
t
LOW
t
r
t
SU;DAT
t
f
t
HD;DAT
t
HIGH
t
SU;STA
t
HD;STA
t
SP
t
SU;STO
t
r
t
BUF
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