Q2

VSS

A3

A0

Q0

Q1

A2

A1

GVPP

Q5

A10

E

Q3

A11

Q7

Q6

Q4

A4

VCC

A7

AI00781

M2732A

8

1

2

3

4

5

6

7

9

10

11

12

20

19

18

17

16

15

A6

A5

A9

A8

23

22

21

14

13

24

Figure 2. DIP Pin Connections

Symbol

Parameter

Value

Unit

Ambient Operating Temperature

grade 1

grade 6

0 to 70

–40 to 85

°C

Temperature Under Bias

grade 1

grade 6

–10 to 80

–50 to 95

°C

Storage Temperature

–65 to 125

°C

Input or Output Voltages

–0.6 to 6

V

Supply Voltage

–0.6 to 6

V

Program Supply Voltage

–0.6 to 22

V

Note: Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" 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

indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods

may affect device reliability. Refer also to the SGS-THOMSON SURE Program and other relevant quality documents.

Table 2. Absolute Maximum Ratings

DEVICE OPERATION

The six modes of operation for the M2732A are

listed in the Operating Modes Table. A single 5V

power supply is required in the read mode. All

Read Mode

The M2732A has two control functions, both of

which must be logically satisfied in order to obtain

data at the outputs. Chip Enable (E) is the power

control and should be used for device selection.

Output Enable (G) is the output control and should

be used to gate data to the output pins, inde-

pendent of device selection.

Assuming that the addresses are stable, address

the falling edge of G, assuming that E has been low

and the addresses have been stable for at least

Standby Mode

The M2732A has a standby mode which reduces

the active power current by 70 %, from 125 mA to

35 mA. The M2732A is placed in the standby mode

by applying a TTL high signal to E input. When in

standby mode, the outputs are in a high impedance

Two Line Output Control

Because M2732A’s are usually used in larger mem-

ory arrays, this product features a 2 line control

function which accommodates the use of multiple

memory connection. The two line control function

allows:

a. the lowest possible memory power dissipation,

b. complete assurance that output bus contention

will not occur.

To most efficiently use these two control lines, it is

recommended that E be decoded and used as the

primary device selecting function, while G should

be made a common connection to all devices in the

array and connected to the READ line from the

system control bus.

This ensures that all deselected memory devices

are in their low power standby mode and that the

output pins are only active when data is required

from a particular memory device.

2/9

M2732A