MITSUBISHI <DIGITAL ASSP>

M66287FP

262144-word x 8-bit x 3-FIELD MEMORY

© 2002 MITSUBISHI ELECTRIC CORPORATION

11

POWER - ON

After power-on, this IC initializes some circuits of internal FIFO (1.8 V), using the built-in power-on reset circuit.

Some circuits of internal FIFO are initialized by the built-in power-on reset circuit. No restriction is imposed on the

VCC18

GND

VCC18 x 10%

VCC18 x 10%

100ms(min)

VCC18

1ms(max)

Some circuits of internal FIFO should be initialized by the TEST1 (pin 99) pin.

VCC18

GND

VCC18

TEST1

VCCIO

1ms or more

200ns(min)

200ns(min)

VCCIO

GND

3.0V~3.6V

VCCIO

3.0V~3.6V

1.62V~1.98V

GND

msec or less.

Note : Important matter;

Provide write reset cycles and read reset cycles of 100 cycles or more, respectively after the VCC reaches

to the specified voltage after power-on.

When inputting a reset pulse using the TEST1 (pin 99) pin, provide write reset cycles and read reset cycles

of 100 cycles or more, respectively after inputting a reset pulse at power-on.

There is no problem in this reset operation if a total of 100 cycles or more is achieved, even if

discontinuous reset input is made.