CY62146VLL-70BAI Cypress Semiconductor Corp, CY62146VLL-70BAI Datasheet

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CY62146VLL-70BAI

Manufacturer Part Number
CY62146VLL-70BAI
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY62146VLL-70BAI

Density
4Mb
Access Time (max)
70ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
3V
Address Bus
18b
Package Type
FBGA
Operating Temp Range
-40C to 85C
Number Of Ports
1
Supply Current
15mA
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
48
Word Size
16b
Number Of Words
256K
Lead Free Status / Rohs Status
Not Compliant

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
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Manufacturer:
TI
Quantity:
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Part Number:
CY62146VLL-70BAI
Manufacturer:
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Quantity:
20 000
Company:
Part Number:
CY62146VLL-70BAIT
Quantity:
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Features
Functional Description
The CY62146V is a high-performance CMOS static RAM or-
ganized as 262,144 words by 16 bits. These devices feature
advanced circuit design to provide ultra-low active current.
This is ideal for providing More Battery Life™ (MoBL™) in por-
table applications such as cellular telephones. The device also
has an automatic power-down feature that significantly reduc-
es power consumption by 99% when addresses are not tog-
gling. The device can also be put into standby mode when
deselected (CE HIGH). The input/output pins (I/O
MoBL and More Battery Life are trademarks of Cypress Semiconductor Corporation.
Cypress Semiconductor Corporation
• Low voltage range:
• Ultra-low active, standby power
• Easy memory expansion with CE and OE features
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
• CMOS for optimum speed/power
Logic Block Diagram
— CY62146V: 2.7V–3.6V
A
A
A
A
A
A
A
A
A
A
3
1
0
9
7
6
5
4
2
8
COLUMN DECODER
DATA IN DRIVERS
RAM Array
2048 x 2048
256K x 16
3901 North First Street
0
through
I/O
(CE HIGH), outputs are disabled (OE HIGH), BHE and BLE
are disabled (BHE, BLE HIGH), or during a write operation (CE
LOW, and WE LOW).
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
written into the location specified on the address pins (A
through A
from I/O pins (I/O
specified on the address pins (A
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
then data from memory will appear on I/O
truth table at the back of this data sheet for a complete descrip-
tion of read and write modes.
The CY62146V is available in 48-Ball FBGA and standard
44-Pin TSOP Type II (forward pinout) packaging.
I/O
I/O
15
0
8
–I/O
–I/O
) are placed in a high-impedance state when: deselected
BHE
WE
CE
OE
BLE
7
15
16
San Jose
). If Byte High Enable (BHE) is LOW, then data
256K x 16 Static RAM
0
8
to I/O
through I/O
Pin Configurations
7
I/O
I/O
I/O
I/O
V
I/O
I/O
I/O
I/O
V
A
WE
A
A
A
A
. If Byte High Enable (BHE) is LOW,
CE
CC
A
A
A
A
A
SS
16
15
14
13
12
4
3
2
1
0
0
1
2
3
4
5
6
7
TSOP II (Forward)
CA 95134
13
14
15
16
17
18
19
20
21
22
CY62146V MoBL™
1
2
3
4
5
6
7
8
9
10
11
12
15
Top View
0
) is written into the location
through A
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
8
A
0
A
A
A
OE
BHE
BLE
I/O
I/O
I/O
I/O
V
V
I/O
I/O
I/O
I/O
NC
A
A
A
A
17
to I/O
SS
CC
17
5
6
7
8
9
10
11
through I/O
).
15
14
13
12
11
10
9
8
June 15, 2001
408-943-2600
15
. See the
7
), is
0

Related parts for CY62146VLL-70BAI

CY62146VLL-70BAI Summary of contents

Page 1

... COLUMN DECODER MoBL and More Battery Life are trademarks of Cypress Semiconductor Corporation. Cypress Semiconductor Corporation I/O ) are placed in a high-impedance state when: deselected 15 (CE HIGH), outputs are disabled (OE HIGH), BHE and BLE are disabled (BHE, BLE HIGH), or during a write operation (CE LOW, and WE LOW). ...

Page 2

Pin Configurations (continued) Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied ............................................. –55°C to +125°C Supply Voltage to Ground Potential ............... ...

Page 3

Electrical Characteristics Over the Operating Range Parameter Description V Output HIGH Voltage OH V Output LOW Voltage OL V Input HIGH Voltage IH V Input LOW Voltage IL I Input Load Current IX I Output Leakage Current ...

Page 4

AC Test Loads and Waveforms OUTPUT OUTPUT INCLUDING INCLUDING JIG AND JIG AND SCOPE (a) SCOPE Equivalent to: THÉ VENIN EQUIVALENT R TH OUTPUT Parameter Data Retention ...

Page 5

Switching Characteristics Over the Operating Range Parameter READ CYCLE t Read Cycle Time RC t Address to Data Valid AA t Data Hold from Address Change OHA t CE LOW to Data Valid ACE t OE LOW to Data Valid ...

Page 6

Switching Waveforms [10, 11] Read Cycle No. 1 ADDRESS DATA OUT PREVIOUS DATA VALID [11, 12] Read Cycle No ACE OE BHE/BLE t LZOE t LZBE HIGH IMPEDANCE DATA OUT t LZCE SUPPLY ...

Page 7

Switching Waveforms (continued) Write Cycle No. 1 (WE Controlled) ADDRESS BHE/BLE OE DATA I/O NOTE 15 t HZOE Write Cycle No. 2 (CE Controlled) ADDRESS CE BHE/BLE WE DATA I/O Notes: 13. Data I/O is high-impedance ...

Page 8

Switching Waveforms (continued) Write Cycle No. 3 (WE Controlled, OE LOW) ADDRESS CE BHE/BLE DATA I/O NOTE 15 t HZWE Write Cycle No. 4 (BHE/BLE Controlled, OE LOW) ADDRESS CE BHE/BLE DATA I/O NOTE ...

Page 9

Typical DC and AC Characteristics Normalized Operating Current vs. Supply Voltage 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.7 3.2 SUPPLY VOLTAGE (V) Access Time vs. Supply Voltage 2.7 2.8 SUPPLY ...

Page 10

... Ordering Information Speed (ns) Ordering Code 70 CY62146VLL-70ZI CY62146VLL-70BAI Document #: 38-00647-*E Package Diagrams 48-Ball (7. 8. 1.20 mm) Fine Pitch BGA BA48B Package Name Package Type Z44 44-Pin TSOP II BA48B 48-Ball Fine Pitch BGA 10 CY62146V MoBL™ Operating Range Industrial 51-85106-B ...

Page 11

Package Diagrams (continued) 44-Pin TSOP II Z44 11 CY62146V MoBL™ 51-85087-A ...

Page 12

... Cypress Semiconductor Corporation, 2001. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user ...

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