XM20C64

7

Array Recall Timing

Limits

Symbol

Parameter

Min.

Max.

Units

Array Recall Time

10

µs

Recall Strobe Pulse Width

50

ns

Delay From

WE HIGH to Recall

0

ns

3874 PGM T05.1

Note:

The recall sequence must be repeated for each memory component individually. This is accomplished by sequencing through the

Array Recall Cycle

3874 FHD F06.1

EQUIVALENT TEST LOAD CIRCUIT

SYMBOL TABLE

WAVEFORM

INPUTS

OUTPUTS

Must be

steady

Will be

steady

May change

from LOW

to HIGH

Will change

from LOW

to HIGH

May change

from HIGH

to LOW

Will change

from HIGH

to LOW

Don’t Care:

Changes

Allowed

Changing:

State Not

Known

N/A

Center Line

is High

Impedance

ADDRESS

NE

OE

WE

CE

DATA I/O

tRCC

tRCP

tRWE

3874 FHD F07.2

735

Ω

318

Ω

OUTPUT

30pF

5V