M41TTHSMH6E STMICROELECTRONICS [STMicroelectronics], M41TTHSMH6E Datasheet - Page 9

• Manufacturer Part Number: M41TTHSMH6E
• Description: Serial Real Time Clock with 44Bytes NVRAM and Reset
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T94
Figure 4.
1. Open drain output
Figure 5.
1. CPOL (clock polarity) and CPHA (clock phase) are bits that may be set in the SPI Control register of the MCU.
Crystal
RSTIN1
RSTIN2
SDO
V CC
SCL
WDI
SDI
E
CS3
Block diagram
Hardware hookup
SPI Interface with
(CPOL, CPHA) (1) =
('0','0') or ('1','1')
(ST6, ST7, ST9,
ST10, Others)
V BAT
Master
CS2
OSCILLATOR
CS1
INTERFACE
32KHz
SPI
Q
D
C
V PFD = 4.4V
V SO = 2.5V
V BL = 2.5V
(2.65V if THS = V SS )
C
E
COMPARE
COMPARE
COMPARE
M41T94
Q
D
REAL TIME CLOCK
& CALIBRATION
SQUARE WAVE
RTC w/ALARM
WATCHDOG
CALENDAR
USER RAM
44 BYTES
POR
C
E
XXXXX
Q
BL
D
AF
WDF
Summary description
C
E
XXXXX
Q
IRQ/FT/OUT
SQW
RST (1)
D
AI03686
AI04785
(1)
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