M41T81MX6 STMicroelectronics, M41T81MX6 Datasheet - Page 23

• Manufacturer Part Number: M41T81MX6
• Description: IC RTC SERIAL W/ALARM 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T81MX6

• 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 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2822-5

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