Datasheet

DC and AC parameters M41ST85W
32/43 Doc ID 7531 Rev 11
Figure 19. Bus timing requirements sequence
Table 12. AC characteristics
Symbol Parameter
(1)
1. Valid for ambient operating temperature: T
A
= –40 to 85°C; V
CC
= 2.7 to 3.6 V (except where otherwise noted).
Min Max Unit
f
SCL
SCL clock frequency 0 400 kHz
t
BUF
Time the bus must be free before a new transmission can start 1.3 µs
t
EXPD
EX to E
CON
propagation delay 15 ns
t
F
SDA and SCL fall time 300 ns
t
HD:DAT
(2)
2. Transmitter must internally provide a hold time to bridge the undefined region (300 ns max) of the falling edge of SCL.
Data hold time 0 µs
t
HD:STA
START condition hold time (after this period the first clock pulse is generated) 600 ns
t
HIGH
Clock high period 600 ns
t
LOW
Clock low period 1.3 µs
t
R
SDA and SCL rise time 300 ns
t
SU:DAT
Data setup time 100 ns
t
SU:STA
START condition setup time (only relevant for a repeated start condition) 600 ns
t
SU:STO
STOP condition setup time 600 ns
AI00589
SDA
P
tSU:STOtSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STAtBUF
SP