Cypress Semiconductor CY7C1018CV33 Specification Sheet

Features
• Pin- and function-compatible with CY7C1018BV33
• High speed
— t = 10 ns
AA
• CMOS for optimum speed/power
• Center power/ground pinout
• Data retention at 2.0V
• Automatic power-down when deselected
• Easy memory expansion with CE and OE options
• Available in Pb-free and non Pb-free 300-mil-wide
32-pin SOJ
Functional Description
The CY7C1018CV33 is a high-performance CMOS static
RAM organized as 131,072 words by 8 bits. Easy memory
expansion is provided by an active LOW Chip Enable (CE), an
active LOW Output Enable (OE), and tri-state drivers. This
Logic Block Diagram
INPUT BUFFER
A
0
A
1
A
2
A
3
A
4
128K x 8
A
5
ARRAY
A
6
A
7
A
8
COLUMN
CE
DECODER
WE
OE
Note:
1. For guidelines on SRAM system designs, please refer to the 'System Design Guidelines' Cypress application note, available on the internet at www.cypress.com.
Cypress Semiconductor Corporation
Document #: 38-05131 Rev. *D
[1]
POWER
DOWN
• 198 Champion Court
128K x 8 Static RAM
device has an automatic power-down feature that significantly
reduces power consumption when deselected.
Writing to the device is accomplished by taking Chip Enable
(CE) and Write Enable (WE) inputs LOW. Data on the eight I/O
pins (I/O through I/O ) is then written into the location
0 7
specified on the address pins (A
Reading from the device is accomplished by taking Chip
Enable (CE) and Output Enable (OE) LOW while forcing Write
Enable (WE) HIGH. Under these conditions, the contents of
the memory location specified by the address pins will appear
on the I/O pins.
The eight input/output pins (I/O
high-impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), or during a write
operation (CE LOW, and WE LOW).
The CY7C1018CV33 is available in a standard 300-mil-wide
SOJ.
Pin Configurations
Top View
A
1
0
A
1 2
A
3
2
A
4
3
I/O
0
CE 5
I/O
6
0
I/O
1
I/O
7
1
V
8
CC
I/O
2
V
9
SS
I/O
10
2
I/O
3
I/O
11
3
WE
12
I/O
4
A
4
13
A
5 14
I/O
5
A
15
6
A
16
7
I/O
6
I/O
7
,
• San Jose CA 95134-1709
CY7C1018CV33
through A ).
0 16
through I/O ) are placed in a
0 7
SOJ
A
32
16
31 A
15
30
A
14
A
29
13
28
OE
27
I/O
7
26
I/O
6
25
V
SS
24
V
CC
23
I/O
5
22
I/O
4
A
21
12
A
20 11
A
19
10
A
18
9
A
17
8
• 408-943-2600
Revised August 3, 2006
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