CY7B991
CY7B992
5
Capacitance
[12]
Parameter Description Test Conditions Max. Unit
C
IN
Input Capacitance T
A
= 25
°
C, f = 1 MHz, V
CC
= 5.0V 10 pF
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
7B991–4
7B991–5
TTL ACTest Load (CY7B991) TTL Input Test Waveform (CY7B991)
5V
R1
R2
C
L
R1
R2
C
L
7B991–6
CMOS AC Test Load (CY7B992)
3.0V
2.0V
V
th
=1.5V
0.8V
0.0V
≤
1ns
≤
1ns
2.0V
0.8V
V
th
=1.5V
80%
V
th
=V
CC
/2
20%
0.0V
≤
3ns
≤
3ns
80%
20%
V
th
=V
CC
/2
7B991–7
CMOS InputTest Waveform (CY7B992)
V
CC
R1=130
R2=91
C
L
=50pF(C
L
=30 pF for –2 and –5 devices)
(Includes fixture and probe capacitance)
R1=100
R2=100
C
L
=50pF(C
L
(Includes fixture and probe capacitance)
V
CC
=30 pF for –2 and –5 devices)
Comments to this Manuals