CY7B991
CY7B992
Capacitance[12]
Parameter
Description
Test Conditions
Max.
Unit
C
Input Capacitance
T = 25°C, f = 1 MHz, V = 5.0V
10
pF
IN
A
CC
Note:
12. Applies to REF and FB inputs only. Tested initially and after any design or process changes that may affect these parameters.
AC Test Loads and Waveforms
5V
3.0V
2.0V
=1.5V
0.8V
2.0V
=1.5V
0.8V
R1=130
R2=91
R1
R2
V
th
V
th
C = 50 pF (C =30 pF for –2 and –5 devices)
L
L
0.0V
C
(Includes fixture and probe capacitance)
L
1ns
≤
1ns
≤
7B991–4
7B991–5
TTL ACTest Load (CY7B991)
TTL Input Test Waveform (CY7B991)
V
CC
V
CC
R1=100
R2=100
80%
80%
= V /2
20%
R1
=30 pF for –2 and –5 devices)
C = 50 pF (C
L
L
V
th
= V /2
V
CC
th
CC
(Includes fixture and probe capacitance)
20%
0.0V
C
L
R2
3ns
3ns
≤
≤
7B991–6
7B991–7
CMOS AC Test Load (CY7B992)
CMOS Input Test Waveform (CY7B992)
5
CYPRESS [ CYPRESS ]
