CY7B991
CY7B992
Capacitance
[12]
Parameter
C
IN
Description
Input Capacitance
Test Conditions
T
A
= 25
°
C, f = 1 MHz, V
CC
= 5.0V
Max.
10
Unit
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
5V
R1
C
L
R1=130
R2=91
C
L
= 50 pF (C
L
=30 pF for –2 and –5 devices)
(Includes fixture and probe capacitance)
7B991–4
3.0V
2.0V
V
th
=1.5V
0.8V
0.0V
2.0V
V
th
=1.5V
0.8V
R2
≤
1ns
≤
1ns
7B991–5
TTL AC Test Load (CY7B991)
TTL Input Test Waveform (CY7B991)
V
CC
R1
C
L
R1=100
R2=100
C
L
= 50 pF (C
L
=30 pF for –2 and –5 devices)
(Includes fixture and probe capacitance)
80%
V
th
= V
CC
/2
20%
0.0V
V
CC
80%
V
th
= V
CC
/2
20%
R2
7B991–6
≤
3ns
≤
3ns
7B991–7
CMOS AC Test Load (CY7B992)
CMOS Input Test Waveform (CY7B992)
Document #: 38-07138 Rev. **
Page 5 of 15
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