Pin Functions

No. 6303-3/6

LC35V256EM, ET70W

A0 to A14

Address input

WE

Read/write control input

OE

Output enable input

CE

Chip enable input

I/O1 to I/O8

Data I/O

Power supply, ground

Function Table

Mode

CE

OE

WE

I/O

Supply current

Read cycle

L

L

H

Data output

Write cycle

L

X

L

Data input

Output disable

L

H

H

High impedance

Unselected

H

X

X

High impedance

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

4.6

V

Input pin voltage

V

I/O pin voltage

V

Operating temperature

Topr

–10 to +70

°C

Storage temperature

Tstg

–55 to +125

°C

Specifications

Absolute Maximum Ratings

Note: * The minimum value is –2.0 V for pulse widths under 30 ns.

I/O Capacitances at Ta = 25°C, f = 1 MHz

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

I/O pin capacitance

6

10

pF

Input pin capacitance

6

10

pF

Note: All units are not tested; only samples are tested.

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Supply voltage

3.0

3.3

3.6

V

Input voltage

V

–0.3*

V

Note: * The minimum value is –2.0 V for pulse widths under 30 ns.

Note: X indicates H or L.