STM8L151G4Y3 STMICROELECTRONICS [STMicroelectronics], STM8L151G4Y3 Datasheet - Page 95

• Manufacturer Part Number: STM8L151G4Y3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8L151xx, STM8L152xx
Note:
I
Subject to general operating conditions for V
The STM8L I
protocol described in the following table with the restriction mentioned below:
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (SDA and SCL).
Table 42.
1. f
2. Data based on standard I
For speeds around 200 kHz, the achieved speed can have a
For other speed ranges, the achieved speed can have a
The above variations depend on the accuracy of the external components used.
2
t
w(STO:STA)
C - Inter IC control interface
Symbol
t
t
t
t
t
w(SCLH)
w(SCLL)
t
su(SDA)
t
t
su(STO)
t
t
t
su(STA)
h(SDA)
r(SDA)
f(SDA)
h(STA)
r(SCL)
f(SCL)
SYSCLK
C
b
must be at least equal to 8 MHz to achieve max fast I
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
Repeated START condition setup
time
STOP condition setup time
STOP to START condition time (bus
free)
Capacitive load for each bus line
2
I2C characteristics
C interface (I2C1) meets the requirements of the Standard I
2
Parameter
C protocol requirement, not tested in production.
Doc ID 15962 Rev 5
DD
, f
Min
SYSCLK
Standard mode
250
4.7
4.0
4.0
4.7
4.0
4.7
0
(2)
2
C speed (400 kHz).
I
2
±
, and T
C
2% tolerance
Max
1000
300
400
±
5% tolerance
(2)
A
unless otherwise specified.
Fast mode I
Min
Electrical parameters
100
1.3
0.6
0.6
0.6
0.6
1.3
0
(2)
2
C communication
Max
900
300
300
400
2
C
(1)
(2)
95/122
Unit
pF
μs
ns
μs
μs
μs