STM32F103xx
Electrical characteristics
Figure 21. SPI timing diagram - master mode
High
NSS input
t
c(SCK)
CPHA=0
CPOL=0
CPHA=0
CPOL=1
CPHA=1
CPOL=0
CPHA=1
CPOL=1
t
t
t
t
w(SCKH)
w(SCKL)
r(SCK)
f(SCK)
t
su(MI)
MISO
MSBIN
t
BIT6 IN
LSB IN
INPUT
h(MI)
MOSI
M SB OUT
BIT1 OUT
LSB OUT
OUTUT
t
t
v(MO)
h(MO)
ai14136
1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD
.
USB characteristics
The USB interface is USB-IF certified (Full Speed).
Table 37. USB DC electrical characteristics
Symbol
Parameter
Conditions
Min.(1)
Max.(1) Unit
Input levels
VDI
Differential input sensitivity
I(USBDP, USBDM)
Includes VDI range
0.2
0.8
Differential common mode
range
VCM
VSE
2.5
V
Single ended receiver
threshold
1.3
2.0
Output levels
VOL
VOH
Static output level low
Static output level high
RL of 1.5 kΩto 3.6 V(2)
0.3
V
3.6
(2)
RL of 15 kΩto VSS
2.8
1. All the voltages are measured from the local ground potential.
RL is the load connected on the USB drivers
2.
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STMICROELECTRONICS [ ST ]
