CY62148 CYPRESS [Cypress Semiconductor], CY62148 Datasheet

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CY62148

Manufacturer Part Number
CY62148
Description
512K x 8 MoBL Static RAM
Manufacturer
CYPRESS [Cypress Semiconductor]
Datasheet

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Price
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Manufacturer:
CYPRESS/赛普拉斯
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20 000
MoBL
Features
Functional Description
The CY62148V is a high-performance CMOS static RAM or-
ganized as 524,288 words by 8 bits. This device features ad-
vanced circuit design to provide ultra-low active current. This
is ideal for providing More Battery Life™ (MoBL™) in portable
applications such as cellular telephones. The device also has
an automatic power-down feature that significantly reduces
power consumption by 99% when addresses are not toggling.
Cypress Semiconductor Corporation
Logic Block Diagram
• Low voltage range:
• Ultra low active power
• Low standby power
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
• CMOS for optimum speed/power
— 2.7V–3.6V
WE
CE
OE
A
A
A
A
A
A
A
A
A
A
1
2
3
4
5
0
6
7
8
9
3901 North First Street
Data in Drivers
DECODER
COLUMN
ARRAY
512K x 8
POWER
DOWN
The device can be put into standby mode when deselected
(CE HIGH).
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
fied on the address pins (A
Reading from the device is accomplished by taking Chip En-
able (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 CY62148V is available in a 36-ball FBGA, 32 pin TSOPII,
and a 32-pin SOIC package.
512K x 8 MoBL Static RAM
0
through I/O
San Jose
62148V-1
7
) is then written into the location speci-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
CY62148V MoBL™
0
1
2
3
4
5
6
7
0
through A
CA 95134
0
through I/O
18
).
7
) are placed in a
March 23, 2000
408-943-2600

Related parts for CY62148

CY62148 Summary of contents

Page 1

... 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 CY62148V is available in a 36-ball FBGA, 32 pin TSOPII, and a 32-pin SOIC package. Data in Drivers ...

Page 2

... Output Current into Outputs (LOW)............................. 20 mA Static Discharge Voltage .......................................... >2001V (per MIL-STD-883, Method 3015) Latch-Up Current .................................................... >200 mA Operating Range Range Industrial + 0.5V CC Operating (I [2] [2] Max. Speed Typ. 3. CY62148V MoBL™ FBGA Top View ...

Page 3

... CC V < 0.3V MAX CE > > < 0.3V 3.6V Test Conditions T = 25° MHz 3.0V CC Test Conditions Symbol 3 CY62148V MoBL™ CY62148V [2] Min. Typ. Max. Unit 2.4 V 0 –0.5 0.8 V – – ...

Page 4

... V 0. < 0. input may exceed V +0.3V CC ramp from > stable CC(min.) CC(min.) DATA RETENTION MODE 1.0V V > 1 CDR 4 CY62148V MoBL™ 90% 10% Fall time: 1 V/ns 62148V–4 [2] Min. Typ. Max. Unit 1.0 3.6 0 62148V– ...

Page 5

... Description [ [6] [6, 7] [6, 7] [6] is less than less than t HZCE LZCE HZOE LZOE = part ( Test Loads. Transition is measured ±200 mV from steady-state voltage. L HZWE 5 CY62148V MoBL™ (2.7V–3.6V Operation) Min. Max. Unit ...

Page 6

... During this period, the I/Os are in output state and input signals should not be applied OHA DOE DATA VALID 50 PWE t SD DATA VALID CY62148V MoBL™ DATA VALID 62148V–6 t HZOE t HZCE HIGH IMPEDANCE 50 62148V– 62148V–8 ...

Page 7

... DATA I/O Write Cycle No. 3 (WE Controlled, OE LOW) ADDRESS DATA I/O NOTE 15 t HZWE [8, 13, 14 SCE DATA IN [9, 14 DATA IN 7 CY62148V MoBL™ VALID VALID t LZWE 62148V–9 62148–10 ...

Page 8

... WE OE Inputs/Outputs High Data Out Data High Z Standby Current vs. Supply Voltage 1.0 1.9 3.7 SUPPLY VOLTAGE (V) 3.7 Mode Deselect/Power-Down Read Write Output Disabled 8 CY62148V MoBL™ 3.7 2.8 Power Standby ( Active ( Active ( Active ( ...

Page 9

... Ordering Code 70 CY62148VLL-70BAI CY62148VLL-70ZI CY62148VLL-70SI Document #: 38-00646-C Package Diagrams 36-Ball (7. 8 1.5 mm) Thin BGA BA37 Package Name Package Type BA37 36-Ball Fine Pitch BGA ZS32 32-Lead TSOPII S34 32-Lead 450 mil. molded SOIC 9 CY62148V MoBL™ Operating Range Industrial 51-85105-A ...

Page 10

... Package Diagrams (continued) 32-Lead (450 MIL) Molded SOIC S34 10 CY62148V MoBL™ ...

Page 11

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 32-Lead TSOP II ZS32 CY62148V MoBL™ 51-85095 ...

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