CY7C109B-20VC

CY7C109B-20VC Datasheet


CY7C109B CY7C1009B

Part Datasheet
CY7C109B-20VC CY7C109B-20VC CY7C109B-20VC (pdf)
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009B

CY7C109B CY7C1009B
128K x 8 Static RAM

A9 A 10 A 11 A12 A13 A14 A15 A16
• High speed tAA = 12 ns
• Low active power 495 mW max. 12 ns
• Low CMOS standby power 55 mW max. 4 mW
• 2.0V Data Retention
• Automatic power-down when deselected
• TTL-compatible inputs and outputs
• Easy memory expansion with CE1, CE2, and OE options

Functional Description

The CY7C109B / CY7C1009B 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 CE1 , an active HIGH Chip Enable CE2 , an active LOW Out-

Logic Block Diagram

A0 A1 A2 A3 A4 A5 A6 A7 A8

CE1 CE2 WE

ROW DECODER SENSE AMPS

INPUT BUFFER
512 x 256 x 8 ARRAY

COLUMN DECODER

POWER DOWN
put Enable OE , and three-state drivers. Writing to the device is accomplished by taking Chip Enable One CE1 and Write Enable WE inputs LOW and Chip Enable Two CE2 input HIGH. Data on the eight I/O pins I/O0 through I/O7 is then written into the location specified on the address pins A0 through A16 .

Reading from the device is accomplished by taking Chip Enable One CE1 and Output Enable OE LOW while forcing Write Enable WE and Chip Enable Two CE2 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/O0 through I/O7 are placed in a high-impedance state when the device is deselected CE1 HIGH or CE2 LOW , the outputs are disabled OE HIGH , or during a write operation CE1 LOW, CE2 HIGH, and WE LOW .

The CY7C109B is available in standard 400-mil-wide SOJ and 32-pin TSOP type I packages. The CY7C1009B is available in a 300-mil-wide SOJ package. The CY7C1009B and CY7C109B are functionally equivalent in all other respects.

I/O0

I/O1

I/O2

I/O3

A11 A9

I/O4 A13

I/O5 A15

I/O6 A16

I/O7 A7

Pin Configurations

SOJ Top View

NC 1 A16 2 A14 3 A12 4

A7 5 A6 6 A5 7

A4 8 A3 9

A2 10 A1 11 A0 12 I/O0 13 I/O1 14 I/O2 15 GND 16
32 VCC
31 A15 30 CE2
29 WE 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE1 21 I/O7 20 I/O6
19 I/O5
Ordering Information

Speed ns 12 15
Ordering Code CY7C109B-12VC CY7C1009B-12VC CY7C109B-12ZC CY7C109B-15VC CY7C109BL-15VC CY7C1009B-15VC CY7C109B-15ZC CY7C109BL-15ZC CY7C109B-15VI CY7C109BL-15VI CY7C1009B-15VI CY7C109B-15ZI CY7C109B-20VC CY7C1009B-20VC CY7C109B-20VI CY7C109B-20ZC CY7C109B-20ZI CY7C109B-25VC CY7C1009B-25VC CY7C109B-25VI CY7C109B-25ZC CY7C109B-25ZI CY7C109B-35VC CY7C1009B-35VC CY7C109B-35VI

CY7C109B CY7C1009B

Package Name V33 V32 Z32 V33 V32 Z32 V33 V32 Z32 V33 V32 V33 Z32 V33 V32 V33 Z32 V33 V32 V33

Package Type 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead TSOP Type I 32-Lead 400-Mil Molded SOJ 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead TSOP Type I 32-Lead TSOP Type I 32-Lead 400-Mil Molded SOJ 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead TSOP Type I 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead 400-Mil Molded SOJ 32-Lead TSOP Type I 32-Lead TSOP Type I 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead 400-Mil Molded SOJ 32-Lead TSOP Type I 32-Lead TSOP Type I 32-Lead 400-Mil Molded SOJ 32-Lead 300-Mil Molded SOJ 32-Lead 400-Mil Molded SOJ

Operating Range

Commercial

Commercial

Industrial

Commercial Industrial Commercial Industrial Commercial Industrial Commercial Industrial Commercial Industrial

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Package Diagrams
32-Lead 300-Mil Molded SOJ V32

CY7C109B CY7C1009B
32-Lead 400-Mil Molded SOJ V33
51-85041-A
51-85033-A

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Package Diagrams continued
32-Lead Thin Small Outline Package Z32

CY7C109B CY7C1009B
51-85056-C

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Cypress Semiconductor Corporation, 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. 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.

CY7C109B CY7C1009B

Document Title CY7C109B, CY7C1009 128K x 8 SRAM Document Number 38-05038

Issue ECN NO. Date

Orig. of Change Description of Change
106832 09/22/01 SZV

Change from Spec number 38-00971 to 38-05038

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Datasheet ID: CY7C109B-20VC 507921