M41T81SM6F STMicroelectronics, M41T81SM6F Datasheet - Page 27

• Manufacturer Part Number: M41T81SM6F
• Description: IC RTC SERIAL W/ALARM 8SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T81SM6F

• 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: 8-SOIC (3.9mm Width)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 20 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4684-2

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