M41ST84W_08 STMICROELECTRONICS [STMicroelectronics], M41ST84W_08 Datasheet - Page 8

• Manufacturer Part Number: M41ST84W_08
• Description: 3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Description
Figure 2.
Figure 3.
1. Open drain output
8/34
Crystal
RSTIN
V BAT
16-pin SOIC connections
Block diagram
V CC
SDA
V SS
WDI
SCL
PFI
XO
XI
RSTIN
V BAT
1.25V
(Internal)
OSCILLATOR
INTERFACE
PFO
RST
V SS
WDI
400kHz
XO
32KHz
I 2 C
XI
V PFD = 2.65V
V SO = 2.5V
V BL = 2.5V
1
2
3
4
5
6
7
8
M41ST84W
COMPARE
COMPARE
COMPARE
COMPARE
REAL TIME CLOCK
AI03678
& CALIBRATION
SQUARE WAVE
RTC w/ALARM
WATCHDOG
CALENDAR
USER RAM
44 BYTES
16
15
14
13
12
11
10
POR
9
BL
V CC
NC
IRQ/FT/OUT
NC
PFI
SQW
SCL
SDA
AF
WDF
V INT
SQW
IRQ/FT/OUT
RST
PFO
AI03931
(1)
M41ST84W
(1)