m41st87w STMicroelectronics, m41st87w Datasheet - Page 8

• Manufacturer Part Number: m41st87w
• Description: 5.0, 3.3, Or 3.0v, 1280 Bit 160 X8 Secure Serial Rtc And Nvram Supervisor With Tamper Detection
• Manufacturer: STMicroelectronics

M41ST87Y, M41ST87W
Figure 5. Hardware Hookup
8/42
Unregulated
Voltage
R1
R2
voltage sources
R3
R4
V
V
For monitoring
Pushbutton
of additional
Regulator
Regulator
IN
IN
Inhibit
Inhibit
3.3V
5V
Reset
V
V
CC
CC
V
TP1
TP2
EX
SCL
WDI
RSTIN1
RSTIN2
PFI
PFI
V
V
CC
SS
BAT
1
2
IN
IN
M41ST87Y/W
IRQ/OUT
SQW/FT
TP
PFO
PFO
E
V
SDA
F
RST
CON
OUT
CLR
32k
1
2
To RST
To LED Display
To NMI
To INT
To 32kHz
V
E
AI07027
CC
Low-Power
SRAM