M41T0M6 STMicroelectronics, M41T0M6 Datasheet - Page 5

• Manufacturer Part Number: M41T0M6
• Description: Real Time Clock ENV 511-M41T0M6E
• Manufacturer: STMicroelectronics

Specifications of M41T0M6

• Function: Clock, Calendar
• Rtc Memory Size: 8 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-8
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1
Description
The M41T0 real-time clock is a low power serial real-time clock with a built-in 32.768 kHz
oscillator (external crystal controlled). Eight registers are used for the clock/calendar
function and are configured in binary coded decimal (BCD) format. Addresses and data are
transferred serially via a two-line bidirectional bus. The built-in address register is
incremented automatically after each WRITE or READ data byte.
The M41T0 is supplied in 8-lead plastic small outline package.
Figure 1.
Figure 2.
1. NF pin must be tied to V
Table 1.
1. NF pin must be tied to V
OSCI
OCSO
OUT
SDA
SCL
NF
V
V
CC
SS
(1)
Logic diagram
SOIC connections
Signal names
SS
SS
.
.
OSCI
Oscillator input
Oscillator output
Output driver (open drain)
Serial data address input / output
Serial clock
No function
Supply voltage
Ground
SCL
OSCO
NF (1)
OSCI
V SS
V CC
V SS
M41T0
1
2
3
4
M41T0
AI07029
8
7
6
5
V CC
OUT
SCL
SDA
OSCO
SDA
OUT
AI07028
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