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STW4510 Datasheet(PDF) 47 Page - STMicroelectronics

No. de pieza STW4510
Descripción Electrónicos  2 step-down DC/DC converters / 5 LDO power management
PDF  57 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4510 Datasheet(HTML) 47 Page - STMicroelectronics

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4.3.2
CMOS input/output dynamic characteristics: I2C interface
4.3.3
CMOS input/output static characteristics: VddIO level
Table 26.
CMOS input/output dynamic characteristics: I²C interface
Symbol
Description
Min.
Typ.
Max.
Units
I²C interface (
Figure 5)
Fscl
Clock frequency
400
kHz
thigh
Clock pulse width high
600
ns
tlow
Clock pulse width low
1300
ns
tr
SDA, SCL, USBSDA, USBSCL rise time
20+0.1Cb
(1)
300
ns
tf
SDA, SCL, USBSDA, USBSCL fall time
20+0.1Cb
(1)
300
ns
thd_sta
Start condition hold time
600
ns
tsu_sta
Start condition set up time
600
ns
thd_dat
Data input hold time
0
ns
tsu_dat
Data input set up time
100
ns
tsu_sto
Stop condition set up time
600
ns
tbuf
Bus free time
1300
ns
Cb
Capacitive load for each bus line
400
pF
1.
Cb = total capacitance of one bus line in pF.
Table 27.
VddIO level: Control I/Os
Symbol
Description
Test conditions
Min.
Typ.
Max.
Units
Sw_resetn, VddOK, Res_pro, Pwren, Clk32k_in
VIL
Low level input voltage
0.3*VddIO
V
VIH
High level input voltage
0.7*VddIO
V
IIL
Low level input current
-1.0
1.5
µA
IIH
High level input current
-1.0
1.5
µA
CIN
Input capacitance
10
pF
VOL
Low level output voltage
IOL = TBD
0.2*VddIO
V
VOH
High level output voltage
IOH = TBD
0.8*VddIO
V
Output fall time
Capacitance 10pF
1
ns
Output rise time
Capacitance 10pF
1
ns
CI/O
Driving capability
100
pF



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