Symbol

Parameter

Value

Unit

Ambient Operating Temperature

MK41T56

MKI41T56

0 to 70

–40 to 85

°C

–55 to 125

°C

Input or Output Voltages

–0.3 to 7

V

Supply Voltage

–0.3 to 7

V

Output Current

20

mA

Power Dissipation

0.25

W

Note: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress

rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of

this specification is not implied. Exposure to the absolute maximum rating conditions for extended periods of time may affect

reliability.

CAUTION: Negative undershoots below –0.3 volts are not allowed on any pin while in the Battery Back-up mode.

Table 2. Absolute Maximum Ratings

SDA

VSS

SCL

FT/OUT

OSCO

OSCI

VCC

VBAT

AI02305

MK41T56

MKI41T56

1

2

3

4

8

7

6

5

Figure 2A. DIP Pin Connections

1

SDA

VSS

SCL

FT/OUT

OSCO

OSCI

VCC

VBAT

AI02306

MK41T56

MKI41T56

2

3

4

8

7

6

5

Figure 2B. SOIC Pin Connections

Address

Data

Function/Range

BCD Format

D7

D6

D5

D4

D3

D2

D1

D0

0

ST

10 Seconds

Seconds

Seconds

00-59

1

X

10 Minutes

Minutes

Minutes

00-59

2

X

X

10 Hours

Hours

Hour

00-23

3

X

X

X

X

X

Day

Day

01-07

4

X

X

10 Date

Date

Date

01-31

5

X

X

X

10 M.

Month

Month

01-12

6

10 Years

Years

Year

00-99

7

OUT

FT

S

Calibration

Control

Keys: S = SIGN Bit; FT = FREQUENCY TEST Bit; ST = STOP Bit; OUT = Output level; X = Don’t care.

Table 3. Register Map

2/15

MK41T56, MKI41T56