M41T81MX6TR STMicroelectronics, M41T81MX6TR Datasheet - Page 23

• Manufacturer Part Number: M41T81MX6TR
• Description: Real Time Clock Serial 512 (64x8)
• Manufacturer: STMicroelectronics

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