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M59BW102

SIGNAL DESCRIPTIONS

See Figure 1 and Table 1.

Address Inputs (A0-A15). The address inputs

for the memory array are latched during a write op-

eration on the falling edge of Chip Enable E or

Read Electronic Signature Manufacturer or Device

Code is enabled depending on the combination of

levels on A0 and A1.

Data Inputs/Outputs (DQ0-DQ15). The input is

data to be programmed in the memory array or a

command to be written to the C.I. Both are latched

on the rising edge of Chip Enable E or Write En-

able W. The output is data from the Memory Array,

the Electronic Signature Manufacturer or Device

codes, the Status register Data Polling bit DQ7,

the Toggle Bits DQ6 and DQ2, the Error bit DQ5

or the Erase Timer bit DQ3. Outputs are valid

when Chip Enable E and Output Enable G are ac-

tive. The output is high impedance when the chip

is deselected or the outputs are disabled.

Chip Enable (E). The Chip Enable input acti-

vates the memory control logic, input buffers, de-

coders and sense amplifiers. E High deselects the

memory and reduces the power consumption to

the standby level. E can also be used to control

writing to the command register and to the memo-

ry array, while W remains at a low level.

Note: 1. 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 condi-

tions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant qual-

ity documents.

2. Minimum Voltage may undershoot to –2V during transition and for less than 20ns.

Symbol

Parameter

Value

Unit

Ambient Operating Temperature

0 to 70

°C

Temperature Under Bias

–50 to 125

°C

Storage Temperature

–65 to 150

°C

(2)

Input or Output Voltage

–0.6 to 5

V

Supply Voltage

–0.6 to 5

V

(2)

A9, E, G Voltage

–0.6 to 13.5

V

Operation

E

G

W

ALE

A0

A1

A6

A9

A12

A15

DQ15-DQ0

Non Linear

Access Mode

Pulse

X

X

X

X

X

X

Data Output

Linear Access

Cycle

Rising

Edge

X

X

X

X

X

X

Data Output

Write Word

A0

A1

A6

A9

A12

A15

Data Input

Output Disable

X

X

X

X

X

X

Hi-Z

Standby

X

X

X

X

X

X

X

X

X

Hi-Z

Code

E

G

W

A0

A1

Other

Address

DQ15-DQ8

DQ7-DQ0

Manufact. Code

Don't Care

00h

20h

Device Code

Don't Care

00h

C1h