Datasheet

DocID012578 Rev 16 11/64
M41T82, M41T83 Description
Figure 8. M41T83 block diagram
1. Open drain output.
2. V
RST
= V
SO
= 2.93 V (S), 2.63 V (R), and 2.32 V (Z).
Figure 9. M41T83 hardware hookup
1. Open drain output.
REAL TIME CLOCK
CALENDAR
ALARM1
ALARM2
WATCHDOG
OSCILLATOR FAIL
CIRCUIT
SQUARE WAVE
OUTPUT DRIVER
8 BITS OF OTP
8-BIT COUNTER
FREQUENCY TEST
USER SRAM (7 Bytes)
IRQ1/FT/OUT
(1)
SQW
IRQ2
(1)
RST
(1)
INTERNAL
POWER
SQWE
A1IE
SDA
SCL
V
CC
OFIE
COMPARE
t
rec
TIMER
I
2
C
INTERFACE
32KHz
OSCILLATOR
V
BAT
CRYSTAL
XI
XO
V
RST
/V
SO
(2)
AI11800
WRITE
PROTECT
V
CC
< V
RST
A2IE
FT
OUT
TIE
AI11801
V
CC
Reset Input
Port
Serial Clock Line
Serial Data Line
32KHz CLKIN
XO
XI
M41T83
MCU
V
SS
V
BAT
IRQ1/FT/OUT
(1)
RST
(1)
IRQ2
(1)
SQW
SDA
SCL
V
CC
INT
V
CC