4

Data Sheet

1 Mbit / 2 Mbit / 4 Mbit Many-Time Programmable Flash

GLS37VF010 / GLS37VF020 / GLS37VF040

©2010 Greenliant Systems, Ltd.

S71151-11-000

05/10

FIGURE 4: Pin Assignments for 32-pin PDIP

TABLE 2: Pin Description

Symbol

Pin Name

Functions

Address Inputs

To provide memory addresses.

Data Input/output

To output data during Read cycles and receive input data during Program cycles.

The outputs are in tri-state when OE# or CE# is high.

CE#

Chip Enable

To activate the device when CE# is low.

WE#

Write Enable

OE#

Output Enable

To gate the data output buffers during Read operation when low

Power Supply

To provide 3.0V supply (2.7-3.6V)

Ground

NC

No Connection

Unconnected pins.

T2.1 1151

TABLE 3: Operation Modes Selection

Mode

CE#

WE#

OE#

DQ

Address

Read

Output Disable

XX

High Z

Standby

X

X

X

High Z

X

Chip-Erase

High Z

X

Byte-Program

Program/Erase Inhibit

X

X

X

High Z

X

XX

X

X

Product Identification

Manufacturer’s ID (BFH)

1. Device ID = C5H for GLS37VF020, C6H for GLS37VF020, and C2H for GLS37VF040

T3.2 1151

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32-pin

PDIP

Top View

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

VDD

WE#

NC

A14

A13

A8

A9

A11

OE#

A10

CE#

DQ7

DQ6

DQ5

DQ4

DQ3

VDD

WE#

A17

A14

A13

A8

A9

A11

OE#

A10

CE#

DQ7

DQ6

DQ5

DQ4

DQ3

VDD

WE#

A17

A14

A13

A8

A9

A11

OE#

A10

CE#

DQ7

DQ6

DQ5

DQ4

DQ3

GLS37VF010 GLS37VF020 GLS37VF040

GLS37VF040 GLS37VF020 GLS37VF010

NC

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

DQ0

DQ1

DQ2

VSS

NC

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

DQ0

DQ1

DQ2

VSS

A18

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

DQ0

DQ1

DQ2

VSS

1151 32-pdip P02b

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