Preliminary
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Table 3.16. I2C Fast-mode (Fm)
Symbol
fSCL
Parameter
Min
Typ
Max
Unit
SCL clock frequency
0
1.3
0.6
100
8
4001 kHz
tLOW
SCL clock low time
µs
tHIGH
SCL clock high time
µs
tSU,DAT
tHD,DAT
tSU,STA
tHD,STA
tSU,STO
tBUF
SDA set-up time
ns
SDA hold time
9002,3 ns
Repeated START condition set-up time
(Repeated) START condition hold time
STOP condition set-up time
Bus free time between a STOP and START condition
0.6
0.6
0.6
1.3
µs
µs
µs
µs
1For the minimum HFPERCLK frequency required in Fast-mode, see the I2C chapter in the EFM32ZG Reference Manual.
2The maximum SDA hold time (tHD,DAT) needs to be met only when the device does not stretch the low time of SCL (tLOW).
3When transmitting data, this number is guaranteed only when I2Cn_CLKDIV < ((900*10-9 [s] * fHFPERCLK [Hz]) - 5).
Table 3.17. I2C Fast-mode Plus (Fm+)
Symbol
fSCL
Parameter
Min
Typ
Max
Unit
SCL clock frequency
0
0.5
10001 kHz
tLOW
SCL clock low time
µs
µs
ns
ns
µs
µs
µs
µs
tHIGH
SCL clock high time
0.26
50
tSU,DAT
tHD,DAT
tSU,STA
tHD,STA
tSU,STO
tBUF
SDA set-up time
SDA hold time
8
Repeated START condition set-up time
(Repeated) START condition hold time
STOP condition set-up time
Bus free time between a STOP and START condition
0.26
0.26
0.26
0.5
1For the minimum HFPERCLK frequency required in Fast-mode Plus, see the I2C chapter in the EFM32ZG Reference Manual.
3.13 Digital Peripherals
Table 3.18. Digital Peripherals
Symbol
Parameter
Condition
Min
Typ
Max
Unit
IUSART
USART current
USART idle current, clock en-
abled
7.5
6.25
8.75
100
µA/
MHz
II2C
I2C current
I2C idle current, clock enabled
µA/
MHz
ITIMER
TIMER current
PCNT current
TIMER_0 idle current, clock
enabled
µA/
MHz
IPCNT
PCNT idle current, clock en-
abled
nA
nA
IRTC
RTC current
GPIO current
RTC idle current, clock enabled
100
IGPIO
GPIO idle current, clock en-
abled
5.31
µA/
MHz
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2013-10-09 - EFM32ZG108FXX - d0063_Rev0.60
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