M41T81MX6TR STMicroelectronics, M41T81MX6TR Datasheet - Page 23
![Real Time Clock Serial 512 (64x8)](/photos/16/11/161122/soic-8_sml.jpg)
M41T81MX6TR
Manufacturer Part Number
M41T81MX6TR
Description
Real Time Clock Serial 512 (64x8)
Manufacturer
STMicroelectronics
Datasheet
1.M41T81M6.pdf
(29 pages)
Specifications of M41T81MX6TR
Function
Clock, Calendar, Alarm, Timer Interrupt
Rtc Memory Size
20 B
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial
Package / Case
SO-28
Time Format
HH:MM:SS:hh
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
M41T81
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 16. Bus timing requirements sequence
Sym
V
Symbol
SO
SDA
SCL
CC
t
t
PD
rec
fall time should not exceed 5 mV/µs.
Battery backup switchover voltage
tBUF
Power down/up AC characteristics
Power down/up trip points DC characteristics
SCL and SDA at V
SCL and SDA at V
P
Parameter
S
Parameter
SS
.
tHD:STA
tR
IH
IH
Doc ID 7529 Rev 10
(1)(2)
before power down
after power Up
tLOW
(1)(2)
tHIGH
tF
A
A
= –40 to 85 °C; V
= –40 to 85 °C; V
tHD:DAT
V
tSU:DAT
BAT
Min
CC
CC
– 0.80 V
Min
= 2.0 to 5.5 V (except where noted).
= 2.0 to 5.5 V (except where noted).
10
0
BAT
SR
Typ
Typ
– 0.50 V
tSU:STA
-
-
DC and AC parameters
tHD:STA
Max
BAT
-
-
Max
P
– 0.30
tSU:STO
Unit
nS
µS
AI00589
Unit
23/29
V