M41T62_06 STMICROELECTRONICS [STMicroelectronics], M41T62_06 Datasheet - Page 5

• Manufacturer Part Number: M41T62_06
• Description: Serial Access Real-Time Clock with Alarms
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T62/63/64/65
1
Summary description
The M41T6x Serial Access TIMEKEEPER
kHz oscillator (external crystal controlled). Eight registers (see
for the clock/calendar function and are configured in binary coded decimal (BCD) format. An
additional 8 registers provide status/control of Alarm, 32KHz output, Calibration, and
Watchdog functions. Addresses and data are transferred serially via a two line, bi-directional
I
READ data byte.
Functions available to the user include a time-of-day clock/calendar, Alarm interrupts
(M41T62/65), 32KHz output (M41T64), programmable Square Wave output
(M41T62/63/64), and Watchdog output (M41T63/65). The eight clock address locations
contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a
second in 24 hour BCD format. Corrections for 28-, 29- (leap year), 30- and 31-day months
are made automatically.
The M41T6x is supplied in a 16-pin QFN.
Figure 1.
1. Open drain.
2. Defaults to 32KHz on power-up.
2
C interface. The built-in address register is incremented automatically after each WRITE or
M41T62 logic diagram
SDA
SCL
XO
XI
M41T62
V
V
CC
SS
®
is a low power Serial RTC with a built-in 32.768
IRQ/OUT
SQW
AI09103
(2)
(1)
Table 3 on page
Summary description
19) are used
5/40