STEVAL-IFS012V1 STMicroelectronics, STEVAL-IFS012V1 Datasheet - Page 145
STEVAL-IFS012V1
Manufacturer Part Number
STEVAL-IFS012V1
Description
BOARD ST72651AR6/STTS75/STLM20
Manufacturer
STMicroelectronics
Specifications of STEVAL-IFS012V1
Sensor Type
Temperature
Sensing Range
Depends on IC
Interface
I²C, USB
Sensitivity
Depends on IC
Voltage - Supply
5V
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ST72F651AR6, STTS75, STLM20
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8419
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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COMMUNICATION INTERFACE CHARACTERISTICS (Cont’d)
13.11.2 I
Subject to general operating conditions for V
f
Figure 91. Typical Application with I
Notes:
1. Data based on standard I
2. The device must internally provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined
region of the falling edge of SCL.
3. The maximum hold time of the START condition has only to be met if the interface does not stretch the low period of
SCL signal.
4. Measurement points are done at CMOS levels: 0.3xV
t
OSC
w(STO:STA)
Symbol
t
t
t
t
t
w(SCLH)
w(SCLL)
t
t
su(SDA)
t
t
su(STA)
su(STO)
t
t
h(SDA)
h(STA)
r(SDA)
r(SCL)
f(SDA)
SDA
SCK
f(SCL)
I
C
, and T
2
t
C BUS
f(SDA)
b
2
C - Inter IC Control Interface
t
A
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
Repeated START condition setup time
STOP condition setup time
STOP to START condition time (bus free)
Capacitive load for each bus line
h(STA)
unless otherwise specified.
START
4.7kΩ
t
w(SCKH)
t
r(SDA)
V
2
DD
C protocol requirement, not tested in production.
t
w(SCKL)
Parameter
4.7kΩ
V
DD
t
su(SDA)
2
t
r(SCK)
C Bus and Timing Diagram
100Ω
100Ω
Doc ID 7215 Rev 4
t
h(SDA)
t
DD
f(SCK)
DD
,
SDAI
SCLI
and 0.7xV
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(SDAI and SCLI). The ST7 I
requirements of the Standard I
protocol described in the following table.
ST72XXX
Standard mode I
Min
250
0
4.7
4.7
4.0
4.7
4.0
4.0
DD
3)
.
1)
4)
Max
1000
300
400
2
1)
C
t
su(STA)
20+0.1C
20+0.1C
t
su(STO)
Min
100
0
Fast mode I
1.3
0.6
0.6
0.6
0.6
1.3
2
2)
C interface meets the
1)
t
w(STO:STA)
STOP
2
b
b
C communication
REPEATED START
ST72651AR6
Max
900
300
300
400
2
C
3)
1)
START
145/161
Unit
ms
pF
μs
ns
μs
ns
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