Capacitance, Ac characteristics, Ac test conditions – Rainbow Electronics W27E512 User Manual
Page 5: Ac test load and waveforms
W27E512
Publication Release Date: November 1999
- 5 -
Revision A8
CAPACITANCE
(V
CC
= 5V, T
A
= 25
° C, f = 1 MHz)
PARAMETER SYMBOL
CONDITIONS MAX.
UNIT
Input Capacitance
C
IN
V
IN
= 0V
6
pF
Output Capacitance
C
OUT
V
OUT
= 0V
12
pF
AC CHARACTERISTICS
AC Test Conditions
PARAMETER CONDITIONS
45/55/70
nS
90/120/150
nS
Input Pulse Levels
0 to 3.0V
0.45V to 2.4V
Input Rise and Fall Times
5 nS
10 nS
Input and Output Timing Reference Level 1.5V/1.5V
0.8V/2.0V
Output Load
C
L
= 30 pF,
I
OH
/I
OL
= -0.4 mA/2.1 mA
C
L
= 100 pF,
I
OH
/I
OL
= -0.4 mA/2.1 mA
AC Test Load and Waveforms
+1.3V
3.3K ohm
100 pF for 90/120/150 nS (Including Jig and Scope
D
(IN914)
OUT
30 pF for 45/55/70 nS (Including Jig and Scope)
Input
3.0V
0V
1.5V
Test Point
Test Point
1.5V
For 45/70 nS
For 90/120/150 nS
Output
2.4V
0.45V
2.0V
0.8V
2.0V
0.8V
Test Points
Test Points
Input
Output