m41t81 STMicroelectronics, m41t81 Datasheet - Page 25

• Manufacturer Part Number: m41t81
• Description: Serial Access Real-time Clock With Alarms
• Manufacturer: STMicroelectronics

M41T81
Table 13.
1.
2.
t
HD:DAT
t
t
t
t
SU:STO
HD:STA
SU:DAT
Valid for Ambient Operating Temperature: T
Transmitter must internally provide a hold time to bridge the undefined region (300ns max) of the falling edge of SCL.
SU:STA
t
Sym
t
f
t
HIGH
LOW
SCL
BUF
t
t
R
F
(2)
SCL clock frequency
Clock low period
Clock high period
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
(after this period the first clock pulse is
generated)
START condition setup time
(only relevant for a repeated start condition)
Data setup time
Data hold time
STOP condition setup time
Time the bus must be free before a new
AC characteristics
transmission can start
Parameter
A
= –40 to 85°C; V
(1)
CC
= 2.0 to 5.5V (except where noted).
Min
600
600
600
100
600
1.3
1.3
0
0
DC and AC parameters
Typ
Max
400
300
300
Units
kHz
25/30
µs
ns
ns
ns
ns
ns
ns
µs
ns
µs