M41T81SMY6E STMicroelectronics, M41T81SMY6E Datasheet - Page 27

• Manufacturer Part Number: M41T81SMY6E
• Description: IC RTC SER W/ALARMS 18-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T81SMY6E

• Memory Size: 20B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M41T81S
Table 13.
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
t
HD:DAT
t
t
t
t
SU:STO
HD:STA
edge of SCL.
SU:STA
SU:DAT
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
transmission can start
AC characteristics
Parameter
Doc ID 10773 Rev 6
A
(1)
= –40 to 85 °C; V
CC
= 2.7 to 5.5 V (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
ns
ns
27/32
µs
ns
ns
ns
ns
ns
µs
µs