M41T81SM6F STMicroelectronics, M41T81SM6F Datasheet - Page 26
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M41T81SM6F
Manufacturer Part Number
M41T81SM6F
Description
IC RTC SERIAL W/ALARM 8SOIC
Manufacturer
STMicroelectronics
Type
Clock/Calendar/Alarmr
Datasheet
1.M41T81SM6F.pdf
(32 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M41T81SM6F
Manufacturer:
ST
Quantity:
20 000
DC and AC parameters
26/32
Table 11.
1. V
2. Valid for ambient operating temperature: T
Table 12.
1. All voltages referenced to V
2. Valid for ambient operating temperature: T
Figure 17. Bus timing requirements sequence
V
Sym
V
Symbol
PFD
SO
SDA
SCL
CC
t
t
PD
rec
fall time should not exceed 5 mV/µs.
Power-fail deselect
Hysteresis
Battery backup switchover voltage
(V
Hysteresis
tBUF
CC
Power down/up AC characteristics
Power down/up trip points DC characteristics
< V
P
SCL and SDA at V
BAT
SCL and SDA at V
; V
S
CC
< V
SS
Parameter
Parameter
.
PFD
tHD:STA
tR
Doc ID 10773 Rev 6
)
IH
IH
before power-down
tLOW
tHIGH
(1)(2)
after power-up
(1)(2)
tF
A
A
= –40 to 85 °C; V
= –40 to 85 °C; V
V
V
BAT
BAT
tHD:DAT
< V
> V
tSU:DAT
CC
CC
PFD
PFD
= 2.7 to 5.5 V (except where noted).
= 2.7 to 5.5 V (except where noted).
Min
10
0
Min
2.5
SR
tSU:STA
Typ
-
-
V
tHD:STA
V
Typ
2.6
25
40
PFD
BAT
Max
-
-
P
Max
2.7
tSU:STO
M41T81S
Unit
AI00589
nS
µS
Unit
mV
mV
V
V
V