ATTINY441_14 Datasheet, PDF (243/366 Pages) ATMEL Corporation – 8-bit AVR Microcontroller with 4/8K Bytes In-System

Symbol
Parameter
t_LOW
Low period of SCL clock
t_HIGH
High period of SCL clock
t_SU:STA
Set-up time for repeated START condition
t_HD:DAT
Data hold time
t_SU:DAT
Data setup time
t_SU:STO
Setup time for STOP condition
t_BUF
Bus free time between STOP and START
Notes: 1. f_CK = CPU clock frequency.
Figure 25-3. Two-Wire Serial Bus Timing
t_OF
SCL
t_LOW
t_HIGH
Condition
t_LOW
t_SU:STA
t_HD:STA
t_HD:DAT
t_SU:DAT
SDA
25.1.9 Serial Programming Characteristics
Figure 25-4. Serial Programming Timing
MOSI
t_OVSH
SCK
MISO
t_SHSL
t_SHOX
Min
Max
Unit
1.3
–
µs
0.6
–
µs
0.6
–
µs
0
0.9
µs
100
–
ns
0.6
–
µs
1.3
–
µs
t_R
t_SU:STO
t_BUF
t_SLSH
ATtiny441/841 [DATASHEET] 243
8495H–AVR–05/2014