M48T35, M48T35Y

2/18

Figure 2A. DIP Connections

A1

A0

DQ0

A7

A4

A3

A2

A6

A5

A13

A10

A8

A9

DQ7

W

A11

G

E

DQ5

DQ1

DQ2

DQ3

VSS

DQ4

DQ6

A12

A14

VCC

AI01621B

8

1

2

3

4

5

6

7

9

10

11

12

13

14

16

15

28

27

26

25

24

23

22

21

20

19

18

17

M48T35

M48T35Y

Note: 1. 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.

2. Soldering temperature not to exceed 260°C for 10 seconds (total thermal budget not to exceed 150°C for longer than 30 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.

Symbol

Parameter

Value

Unit

Ambient Operating Temperature

Grade 1

0 to 70

°C

Grade 6

–40 to 85

°C

–40 to 85

°C

(2)

Lead Solder Temperature for 10 seconds

260

°C

Input or Output Voltages

–0.3 to 7

V

Supply Voltage

–0.3 to 7

V

Output Current

20

mA

Power Dissipation

1

W

Figure 2B. SOIC Connections

AI01622B

8

2

3

4

5

6

7

9

10

11

12

13

14

22

21

20

19

18

17

16

15

28

27

26

25

24

23

1

A1

A0

DQ0

A7

A4

A3

A2

A6

A5

A13

A10

A8

A9

DQ7

W

A11

G

E

DQ5

DQ1

DQ2

DQ3

VSS

DQ4

DQ6

A12

A14

VCC

M48T35Y

DESCRIPTION

x8 non-volatile static RAM and real time clock. The

monolithic chip is available in two special packag-

es to provide a highly integrated battery backed-up

memory and real time clock solution.

The M48T35/35Y is a non-volatile pin and function

equivalent to any JEDEC standard 32Kb x8

SRAM. It also easily fits into many ROM, EPROM,

and EEPROM sockets, providing the non-volatility

of PROMs without any requirement for special

write timing or limitations on the number of writes

that can be performed.

The 28 pin 600mil DIP CAPHAT houses the

M48T35/35Y silicon with a quartz crystal and a

long life lithium button cell in a single package.

The 28 pin 330mil SOIC provides sockets with

gold plated contacts at both ends for direct con-