7

µµµµPD444016L-Y

Preliminary Data Sheet M15392EJ1V0DS

Read Cycle

Parameter

Symbol

µPD444016L-A8Y µPD444016L-A10Y µPD444016L-A12Y Unit Notes

MIN.

MAX.

MIN.

MAX.

MIN.

MAX.

Read cycle time

810

12

ns

Address access time

810

12

ns

1

/CS access time

810

12

ns

/OE access time

456

ns

/LB, /UB access time

456

ns

Output hold from address change

33

3

ns

/CS to output in low impedance

33

3

ns

2, 3

/OE to output in low impedance

00

0

ns

/LB, /UB to output in low impedance

00

0

ns

/CS to output in high impedance

456

ns

/OE to output hold in high impedance

456

ns

/LB, /UB to output hold in high impedance

456

ns

Notes 1. See the output load shown in Figure 1.

2. Transition is measured at

± 200 mV from steady-state voltage with the output load shown in Figure 2.

3. These parameters are not 100% tested.

Read Cycle Timing Chart 1 (Address Access)

Address (Input)

I/O (Output)

Previous data out

Data out

Remarks 1. In read cycle, /WE should be fixed to high level.