CY7C291A
CY7C292A/CY7C293A
AC Test Loads and Waveforms
[4]
5V
OUTPUT
30pF
INCLUDING
JIG AND
SCOPE
R2
167Ω
R1250
Ω
5V
OUTPUT
5 pF
INCLUDING
JIG AND
SCOPE
R2
167Ω
R1250
Ω
3.0V
GND
< 5 ns
C291A-4
ALL INPUT PULSES
90%
10%
90%
10%
< 5 ns
C291A-5
(a) Normal Load
Equivalent to:
THÉ
VENIN EQUIVALENT
100Ω
OUTPUT
(b) High Z Load
2.0V
C291A-6
V
CC
SUPPLY
CURRENT
A
0
−
A
10
ADDRESS
CS
2
−
CS
3
CS
1
t
AA
O
0
- O
7
t
PD
50%
t
PU
50%
t
HZCS
t
ACS
C291A-7
Switching Characteristics
Over the Operating Range
[3, 4]
7C291A-25
7C292A-25
7C293A-25
7C291AL-25
7C292AL-25
7C293AL-25
Min.
Max.
25
15
15
27
27
0
22
27
0
35
7C291A-35
7C292A-35
7C293A-35
7C291AL-35
7C292AL-35
7C293AL-35
Min.
Max.
35
20
20
35
35
0
45
7C291A-50
7C292A-50
7C293A-50
7C291AL-50
7C292AL-50
7C293AL-50
Min.
Max.
50
20
20
45
45
Unit
ns
ns
ns
ns
ns
ns
ns
7C291A-20
7C292A-20
7C293A-20
Parameter
t
AA
t
HZCS1
t
ACS1
t
HZCS2
t
ACS2
t
PU
t
PD
Description
Address to Output Valid
Chip Select Inactive to High Z
Chip Select Active to Output Valid
Chip Select Inactive to High Z
(7C293A CS
1
Only)
[6]
Chip Select Active to Output Valid
(7C293A CS
1
Only)
[6]
Chip Select Active to Power-Up
(7C293A CS
1
Only)
Chip Select Inactive to Power-Down
(7C293A CS
1
Only)
0
Min.
Max.
20
15
15
22
22
Notes:
6. t
HZCS2
and t
ACS2
refer to 7C293A CS
1
only.
5
CYPRESS [ CYPRESS SEMICONDUCTOR ]
