HANBit

HMS3224M3/Z3

HANBit Electronics Co.,Ltd.

8

6. If /OE,/CE and /WE are in the read mode during this period, the I/O pins are in the output low-Z state. Inputs of

opposite

phase of the output must not be applied because bus contention can occur.

7. For common I/O applications, minimization or elimination of bus contention conditions is necessary during read and

write

cycle.

8. If /CE goes low simultaneously with /WE going low or after /WE going low, the outputs remain high impedance state.

10. When /CE is low: I/O pins are in the output state. The input signals in the opposite phase leading to the output should

not be applied.

FUNCTIONAL DESCRIPTION

/CE

/WE

/OE

MODE

I/O PIN

SUPPLY CURRENT

H

X*

X

Not Select

High-Z

L

H

H

Output Disable

High-Z

LH

L

Read

L

L

X

Write

Note: X means Don't Care