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PYA28HC256 Datasheet, PDF (10/15 Pages) Pyramid Semiconductor Corporation – Access Times of 70, 90 and 120ns Software Data Protection
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input Timing Reference Level
Output Timing Reference Level
Output Load
GND to 3.0V
10ns
1.5V
1.5V
See Figure 1
PYA28HC256 - HIGH SPEED 32K x 8 EEPROM
TRUTH TABLE
Mode
CE
OE
WE
Read
L
L
H
Write
L
H
L
Write Inhibit
X
L
X
Write Inhibit
X
X
H
Standby
H
X
X
Output Disable
X
H
X
I/O
DOUT
DIN
—
—
High Z
High Z
Figure 1. Output Load
Document # EEPROM106 REV 03
Page 10