M4T28-BR12SH ST Microelectronics, M4T28-BR12SH Datasheet - Page 7

• Manufacturer Part Number: M4T28-BR12SH
• Description: TIMEKEEPER SNAPHAT Battery & Crystal
• Manufacturer: ST Microelectronics

Figure 7. Hardware Hookup
Note: 1. Required for embedded crystal (MX) package only.
MAXIMUM RATING
Stressing the device above the rating listed in the
“Absolute Maximum Ratings” table may cause
permanent damage to the device. These are
stress ratings only and operation of the device at
these or any other conditions above those indicat-
ed in the Operating sections of this specification is
Table 2. Absolute Maximum Ratings
Note: 1. Reflow at peak temperature of 215°C to 225°C for < 60 seconds (total thermal budget not to exceed 180°C for between 90 to 120
Symbol
T
T
SLD
V
CAUTION: Negative undershoots below –0.3V are not allowed on any pin while in the Battery Back-up mode.
CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
V
P
STG
I
CC
O
IO
D
seconds).
Unregulated
(1)
Voltage
Storage Temperature (V
Lead Solder Temperature for 10 seconds
Input or Output Voltage
Supply Voltage
Output Current
Power Dissipation
R1
R2
V IN
Pushbutton
Regulator
Reset
V CC
CC
Parameter
Off, Oscillator Off)
V CC
EX
SCL
WDI
RSTIN1
RSTIN2
PFI
V BAT
V SS
M41ST85Y/W
not implied. Exposure to Absolute Maximum Rat-
ing conditions for extended periods may affect de-
vice
STMicroelectronics SURE Program and other rel-
evant quality documents.
(1) IRQ/FT/OUT
M41ST85W
SNAPHAT
M41ST85Y
SOIC
reliability.
E CON
V OUT
SQW
SDA
PFO
RST
®
–0.3 to V
To RST
To LED Display
To NMI
To INT
Refer
M41ST85Y, M41ST85W
–55 to 125
–0.3 to 4.6
–40 to 85
V CC
E
–0.3 to 7
Value
M68Z128Y/W
M68Z512Y/W
260
20
1
CC
or
+0.3
also
AI03660
to
Unit
mA
°C
°C
°C
W
V
V
V
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the