M41T00AUD_12 STMICROELECTRONICS [STMicroelectronics], M41T00AUD_12 Datasheet - Page 9

• Manufacturer Part Number: M41T00AUD_12
• Description: Serial real-time clock (RTC) with audio
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T00AUD
Figure 4.
R2 for unity gain
Set R1’s to 2x
be a minimum
Typical hookup example
Audio
R2 should
SDA
In
SCL
R1 x
R1 x
Optional: can
sum additional
audio inputs
32.768 kHz
3.3V
3.3V
Place near
pin 4
OSCO
0.1 µF
OSCI
SDA 8
AIN
SCL 7
FBK 12
Package Metal Heatsink:
exposed pad on back of
IC package
10
1
2
Doc ID 13480 Rev 5
SWITCHOVER
V DD
32 KHz
3.3 V
2
BATTERY
OSC
I 2 C
CHARGE
TRICKLE
M41T00AUD
V INT
256/512 Hz
SECTION
ONE GEN
AUDIO
1.0 µF
RTC
Place near
pin 15
V DD
2
6
5
13
16
3.3 V
AOUT+
AOUT–
V BACK
Either/or, but
not both
IRQ/FT/OUT
+
Optional connection
to micro
ai13325
Lithium
Cell
Battery
(alternative)
Application
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