M41ST84W_08 STMICROELECTRONICS [STMicroelectronics], M41ST84W_08 Datasheet - Page 13

• Manufacturer Part Number: M41ST84W_08
• Description: 3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41ST84W
Figure 7.
Table 2.
1. Valid for ambient operating temperature: T
2. Transmitter must internally provide a hold time to bridge the undefined region (300 ns max) of the falling edge of SCL.
t
Symbol
SDA
SCL
HD:DAT
t
t
t
t
SU:STO
HD:STA
SU:DAT
SU:STA
t
t
t
HIGH
LOW
f
BUF
SCL
t
t
F
R
(2)
tBUF
Bus timing requirements sequence
AC characteristics
P
SCL clock frequency
Time the bus must be free before a new transmission can
start
SDA and SCL fall time
Data hold time
START condition hold time
(after this period the first clock pulse is generated)
Clock high period
Clock low period
SDA and SCL rise time
Data setup time
START condition setup time
(only relevant for a repeated start condition)
STOP condition setup time
S
tHD:STA
tR
A
Parameter
= –40 to 85°C; V
tLOW
tHIGH
tF
(1)
CC
tHD:DAT
= 2.7 to 3.6 V (except where noted).
tSU:DAT
SR
tSU:STA
Min
600
600
100
600
600
1.3
1.3
0
0
tHD:STA
Operating modes
Max
400
300
300
P
AI00589
tSU:STO
Unit
kHz
µs
ns
µs
ns
ns
µs
ns
ns
ns
ns
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