Electrical characteristics
STM8S003K3 STM8S003F3
Figure 40: SPI timing diagram - master mode(1)
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 made at CMOS levels: 0.3 VDD and 0.7 VDD.
9.3.9
I2C interface characteristics
Table 43: I2C characteristics
Symbol Parameter
Unit
Standard mode I2C
Fast mode I2C(1)
Min(2)
4.7
Max(2) Min(2)
Max(2)
tw(SCLL) SCL clock low time
tw(SCLH) SCL clock high time
tsu(SDA) SDA setup time
1.3
0.6
100
μs
4.0
250
0(3)
th(SDA)
SDA data hold time
0(4)
900(3)
300
tr(SDA)
tr(SCL)
SDA and SCL rise time
1000
300
ns
μs
tf(SDA)
tf(SCL)
SDA and SCL fall time
300
th(STA)
START condition hold time
4.0
0.6
0.6
tsu(STA) Repeated START condition setup time 4.7
80/99
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