m41st84w STMicroelectronics, m41st84w Datasheet - Page 5

• Manufacturer Part Number: m41st84w
• Description: 3.0/3.3v I 2c Serial Rtc With Supervisory Functions
• Manufacturer: STMicroelectronics

Figure 3. 16-pin SOIC Connections
Figure 4. Block Diagram
Note: 1. Open drain output
Crystal
RSTIN
V BAT
PFO
RST
V SS
WDI
RSTIN
XO
V CC
SDA
SCL
WDI
XI
PFI
1
2
3
4
5
6
7
8
V BAT
M41ST84W
1.25V
(Internal)
OSCILLATOR
INTERFACE
400kHz
AI03678
32KHz
I 2 C
16
15
14
13
12
11
10
V PFD = 2.65V
9
V SO = 2.5V
V BL = 2.5V
V CC
NC
IRQ/FT/OUT
NC
PFI
SQW
SCL
SDA
COMPARE
COMPARE
COMPARE
COMPARE
REAL TIME CLOCK
& CALIBRATION
SQUARE WAVE
RTC w/ALARM
WATCHDOG
CALENDAR
USER RAM
44 BYTES
POR
BL
AF
WDF
IRQ/FT/OUT
SQW
V INT
RST
PFO
M41ST84W
(1)
AI03931
(1)
5/29