STM32F103xx
Electrical characteristics
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Figure 21.
SPI timing diagram - master mode
1.
Measurement points are done at CMOS levels: 0.3V
DD
and 0.7V
DD
.
USB characteristics
The USB interface is USB-IF certified (Full Speed).
Table 37.
USB DC electrical characteristics
Symbol
Parameter
Conditions
Min.
(1)
1.
All the voltages are measured from the local ground potential.
Max.
(1)
Unit
Input levels
V
DI
Differential input sensitivity
I(USBDP, USBDM)
0.2
V
V
CM
Differential common mode
range
Includes V
DI
range
0.8
2.5
V
SE
Single ended receiver
threshold
1.3
2.0
Output levels
V
OL
Static output level low
R
L
of 1.5 k
Ω
to 3.6 V
(2)
2.
R
L
is the load connected on the USB drivers
0.3
V
V
OH
Static output level high
R
L
of 15 k
Ω
to V
SS
(2)
2.8
3.6
ai14136
SCK Input
CPHA= 0
MOSI
OUTUT
MISO
INP UT
CPHA= 0
MS BIN
M SB OUT
BI T6 IN
LSB OUT
LSB IN
CPOL=0
CPOL=1
B I T1 OUT
NSS input
tc(SCK)
tw(SCKH)
tw(SCKL)
tr(SCK)
tf(SCK)
th(MI)
High
SCK Input
CPHA=1
CPHA=1
CPOL=0
CPOL=1
tsu(MI)
tv(MO)
th(MO)