Cypress Semiconductor CY7C291A, Specification Sheet

Page: 5 / 16

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