M48T39Y

2/4

Figure 2. DIP Connections

A1

A0

DQ0

A7

A4

A3

A2

A6

A5

A13

A10

A8

A9

DQ7

SQW

A11

G

E

DQ5

DQ1

DQ2

DQ3

VSS

DQ4

DQ6

INTB

INTA

VCC

AI02312

10

1

2

5

6

7

8

9

11

12

13

14

15

16

30

29

26

25

24

23

22

21

20

19

18

17

A12

A14

W

VCC

3

4

28

27

32

31

M48T39Y

Table 1. Signal Names

A0-A14

Address Inputs

DQ0-DQ7

Data Inputs / Outputs

E

Chip Enable Input

G

Output Enable Input

W

Write Enable Input

INTA

Interrupt Output A (Open Drain)

INTB

Interrupt Output B (Open Drain)

SQW

Square Wave Output

Supply Voltage

Ground

Table 2. Ordering Information Scheme

For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de-

vice, please contact the ST Sales Office nearest to you.

Example:

M48T39Y

-100 PM

1

Device Type

M48T

Supply Voltage and Write Protect Voltage

Speed

-100 = 100ns

-150 = 150ns

Package

PM = PMDIP32

Temperature Range

1 = 0 to 70 °C