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參數資料
| 型號： | CY7C1021BV33-12VC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 64K x 16 Static RAM |
| 中文描述： | 64K X 16 STANDARD SRAM, 12 ns, PDSO44 |
| 封裝： | 0.400 INCH, PLASTIC, SOJ-44 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 239K |
| 代理商： | CY7C1021BV33-12VC |
64K x 16 Static RAM
Writing to the device is accomplished by taking Chip Enable
(CE) and Write Enable (WE) inputs LOW. If Byte Low Enable
(BLE) is LOW, then data from I/O pins (I/O
1
through I/O
8
), is
written into the location specified on the address pins (A
0
through A
15
). If Byte High Enable (BHE) is LOW, then data
from I/O pins (I/O
9
through I/O
16
) is written into the location
specified on the address pins (A
0
through A
15
).
Reading from the device is accomplished by taking Chip En-
able (CE) and Output Enable (OE) LOW while forcing the Write
Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then
data from the memory location specified by the address pins
will appear on I/O
1
to I/O
8
. If Byte High Enable (BHE) is LOW,
then data from memory will appear on I/O
9
to I/O
16
.
See the
truth table at the back of this data sheet for a complete descrip-
tion of read and write modes.
The input/output pins (I/O
1
through I/O
16
) are placed in a
high-impedance state when the device is deselected
(CE HIGH), the outputs are disabled (OE HIGH), the BHE and
BLE are disabled (BHE, BLE HIGH), or during a write opera-
tion (CE LOW, and WE LOW).
The CY7C1021BV is available in 400-mil-wide SOJ, standard
44-pin TSOP Type II, and 48-ball mini BGA packages.
CY7C1021BV33
Cypress Semiconductor Corporation
Document #: 38-05148 Rev. *A
3901 North First Street
San Jose
CA 95134
Revised September 13, 2002
408-943-2600
021BV33
Features
3.3V operation (3.0V–3.6V)
High speed
—
t
AA
= 10/12/15 ns
CMOS for optimum speed/power
Low Active Power (L version)
—
576 mW (max.)
Low CMOS Standby Power (L version)
—
1.80 mW (max.)
Automatic power-down when deselected
Independent control of upper and lower bits
Available in 44-pin TSOP II and 400-mil SOJ
Available in a 48-Ball Mini BGA package
Functional Description
[1]
The CY7C1021BV is a high-performance CMOS static RAM
organized as 65,536 words by 16 bits. This device has an au-
tomatic power-down feature that significantly reduces power
consumption when deselected.
WE
A15
A14
A13
A12
NC
Logic Block Diagram
Pin Configurations
SOJ / TSOP II
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
31
30
32
36
35
34
33
37
40
39
38
Top View
41
44
43
42
16
17
29
28
CC
V
I/O5
I/O6
A
4
A3
A2
A1
A0
OE
BHE
BLE
SS
V
I/O12
I/O11
I/O10
I/O9
A5
A6
A7
I/O16
I/O15
I/O14
V
CE
I/O1
I/O2
I/O3
V
NC
A8
A9
A10
A11
18
19
20
21
27
26
25
24
22
23
NC
I/O7
64K x 16
RAM Array
512 X 2048
I/O
1
–
I/O
8
R
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
COLUMN DECODER
A
9
A
1
A
1
A
1
A
1
A
1
A
1
S
DATA IN DRIVERS
BLE
I/O
9
–
I/O
16
OE
WE
A
8
Selection Guide
7C1021BV-8
8
170
190
5
0.500
7C1021BV-10
10
160
180
5
0.500
7C1021BV-12
12
150
170
5
0.500
7C1021BV-15
15
140
160
5
0.500
Maximum Access Time (ns)
Maximum Operating Current (mA)
Commercial
Industrial
Commercial
Maximum CMOS Standby Current
(mA)
L
Shaded areas contain advance information.
Note:
1.
For guidelines on SRAM system design, please refer to the
‘
System Design Guidelines
’
Cypress application note, available on the internet at www.cypress.com.
相關PDF資料 |
PDF描述 |
|---|---|
| CY7C1021BV33-12VI | 64K x 16 Static RAM |
| CY7C1021BV33-12ZC | 64K x 16 Static RAM |
| CY7C1021BV33-15BAC | 64K x 16 Static RAM |
| CY7C1021BV33-15BAI | 64K x 16 Static RAM |
| CY7C1021BV33-15VC | 64K x 16 Static RAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CY7C1021BV33-12VCT | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| CY7C1021BV33-12VI | 制造商:Cypress Semiconductor 功能描述:SRAM Chip Async Single 3.3V 1M-Bit 64K x 16 12ns 44-Pin SOJ |
| CY7C1021BV33-12VIT | 制造商:Cypress Semiconductor 功能描述:SRAM Chip Async Single 3.3V 1M-Bit 64K x 16 12ns 44-Pin SOJ T/R |
| CY7C1021BV33-12ZC | 制造商:Cypress Semiconductor 功能描述:SRAM Chip Async Single 3.3V 1M-Bit 64K x 16 12ns 44-Pin TSOP-II 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY7C1021BV33-12ZI | 制造商:Cypress Semiconductor 功能描述:SRAM Chip Async Single 3.3V 1M-Bit 64K x 16 12ns 44-Pin TSOP-II |
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