Electrical characteristics
STM32L151x6/8/B, STM32L152x6/8/B
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DocID17659 Rev 10
Figure 24. SPI timing diagram - master mode
(1)
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 50. USB startup time
Symbol
Parameter
Max
Unit
t
STARTUP
(1)
1. Guaranteed by design, not tested in production.
USB transceiver startup time
1
µs
ai14136
SCK Input
CPHA= 0
MOSI
OUTPUT
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)