Pin definitions, Selection guide – Cypress CY7C140 User Manual
Page 3
CY7C130, CY7C130A
CY7C131, CY7C131A
CY7C140, CY7C141
Document #: 38-06002 Rev. *E
Page 3 of 19
Pin Definitions
Left Port
Right Port
Description
CE
L
CE
R
Chip Enable
R/W
L
R/W
R
Read/Write Enable
OE
L
OE
R
Output Enable
A
0L
–A
11/12L
A
0R
–A
11/12R
Address
I/O
0L
–I/O
15/17L
I/O
0R
–I/O
15/17R
Data Bus Input/Output
INT
L
INT
R
Interrupt Flag
BUSY
L
BUSY
R
Busy Flag
V
CC
Power
GND
Ground
Selection Guide
Parameter
7C131-15
7C131A-15
7C141-15
7C131-25
7C141-25
7C130-30
7C130A-30
7C131-30
7C140-30
7C141-30
7C130-35
7C131-35
7C140-35
7C141-35
7C130-45
7C131-45
7C140-45
7C141-45
7C130-55
7C131-55
7C140-55
7C141-55
Unit
Maximum Access Time
15
25
30
35
45
55
ns
Maximum Operating
Current
Com’l/Ind
190
170
170
120
120
110
mA
Maximum Standby
Current
Com’l/Ind
75
65
65
45
45
35
mA
Shaded areas contain preliminary information.
Note
4. 15 and 25 ns version available only in PLCC/PQFP packages.