XM20C64 View Datasheet(PDF) - Xicor -> Intersil
Part Name
Description
Manufacturer
XM20C64 Datasheet PDF : 11 Pages
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XM20C64
Array Recall Timing
Symbol
Parameter
Limits
Min.
Max.
Units
tRCC
Array Recall Time
tRCP
Recall Strobe Pulse Width
50
tRWE
Delay From WE HIGH to Recall
0
10
µs
ns
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 with all four combinations of A11, and A12.
Array Recall Cycle
ADDRESS
NE
tRCC
tRCP
OE
tRWE
WE
CE
DATA I/O
EQUIVALENT TEST LOAD CIRCUIT
5V
OUTPUT
735Ω
318Ω
30pF
3874 FHD F07.2
3874 FHD F06.1
SYMBOL TABLE
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
7
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