Datasheet

DocID12615 Rev 8 9/56
M41T93 Description
56
Figure 4. Block diagram
1. Open drain output
2. V
RST
= V
SO
= 2.93 V (S), 2.63 V (R), and 2.32 V (Z)
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)
IRQ/FT/OUT
(1)
SQW
RST
(1)
INTERNAL
POWER
SQWE
A1IE
E
SCL
V
CC
OFIE
COMPARE
t
rec
TIMER
SDO
SDI
SPI
INTERFACE
32KHz
OSCILLATOR
V
BAT
CRYSTAL
XI
XO
V
RST
/V
SO
(2)
AI11821
WRITE
PROTECT
V
CC
< V
RST
(2)
FT
OUT
TIE