M41ST84Y, M41ST84W

6/31

Figure 7. Hardware Hookup

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

not implied. Exposure to Absolute Maximum Rat-

ing conditions for extended periods may affect de-

vice

reliability.

Refer

also

to

the

STMicroelectronics SURE Program and other rel-

evant quality documents.

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

seconds).

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.

AI03680

VCC

PFO

SCL

WDI

RSTIN

PFI

VSS

IRQ/FT/OUT

SQW

RST

SDA

M41ST84Y/W

Unregulated

Voltage

Regulator

VCC

VIN

To RST

To LED Display

To NMI

To INT

R1

R2

Symbol

Parameter

Value

Unit

–40 to 85

°C

SOIC

–55 to 125

°C

(1)

Lead Solder Temperature for 10 seconds

260

°C

Input or Output Voltages

V

Supply Voltage

M41ST84Y

–0.3 to 7.0

V

M41ST84W

–0.3 to 4.6

V

Output Current

20

mA

Power Dissipation

1

W