W27C512
CAPACITANCE
(VCC = 5V, TA = 25 C, f = 1 MHz)
°
PARAMETER
Input Capacitance
Output Capacitance
SYMBOL
CONDITIONS
MAX.
6
UNIT
pF
IN
C
IN
V
= 0V
OUT
C
OUT
V
= 0V
12
pF
AC CHARACTERISTICS
AC Test Conditions
PARAMETER
CONDITIONS
45/70 nS
90/120 nS
Input Pulse Levels
0 to 3.0V
5 nS
0.45V to 2.4V
10 nS
Input Rise and Fall Times
Input and Output Timing Reference Level 1.5V/1.5V
0.8V/2.0V
L
L
Output Load
C = 30 pF,
C = 100 pF,
OH OL
OH OL
I
/I = -0.4 mA/2.1 mA
I
/I = -0.4 mA/2.1 mA
AC Test Load and Waveforms
+1.3V
(IN914)
3.3K ohm
D
OUT
100 pF for 90/120 nS (Including Jig and Scope
30 pF for 45/70 nS (Including Jig and Scope)
Output
Input
Input
Test Points
Test Points
2.4V
For 90/120 nS
0.45V
2.0V
0.8V
2.0V
0.8V
Output
Test Point
1.5V
Test Point
3.0V
1.5V
For 45/70 nS
0V
Publication Release Date: November 1999
Revision A4
- 5 -
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