CY7C1049B-17VC

CY7C1049B-17VC Datasheet

CY7C1049B

Part	Datasheet
CY7C1049B-17VC	CY7C1049B-17VC (pdf)

Related Parts	Information
CY7C1049BL-25VC	CY7C1049BL-25VC
CY7C1049B-15VC	CY7C1049B-15VC
CY7C1049B-20VC	CY7C1049B-20VC
CY7C1049BL-17VC	CY7C1049BL-17VC

PDF Datasheet Preview
049B CY7C1049B 512K x 8 Static RAM • High speed tAA = 12 ns • Low active power 1320 mW max. • Low CMOS standby power Commercial L version mW max. • 2.0V Data Retention 400 µW at 2.0V retention • Automatic power-down when deselected • TTL-compatible inputs and outputs • Easy memory expansion with CE and OE features Functional Description[1] The CY7C1049B is a high-performance CMOS static RAM organized as 524,288 words by 8 bits. Easy memory expansion Logic Block Diagram is provided by an active LOW Chip Enable CE , an active LOW Output Enable OE , and three-state drivers. 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/O0 through I/O7 is then written into the location specified on the address pins A0 through A18 . 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/O0 through I/O7 are placed in a 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 . Pin Configuration SOJ Top View A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 ROW DECODER SENSE AMPS INPUT BUFFER 512K x 8 ARRAY COLUMN DECODER POWER DOWN I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 A0 1 A1 2 A3 4 A4 5 I/O0 7 I/O1 8 VCC 9 GND 10 I/O2 11 I/O3 12 WE 13 A5 14 A6 15 A7 16 A8 17 A9 18 36 NC 35 A18 34 A17 33 A16 32 A15 31 OE 30 I/O7 29 I/O6 28 GND 27 VCC 26 I/O5 25 I/O4 24 A14 23 A13 22 A12 21 A11 20 A10 19 NC A 11 A12 A13 A14 A15 A16 A17 A18 Selection Guide 7C1049B-12 7C1049B-15 7C1049B-17 7C1049B-20 7C1049B-25 Maximum Access Time ns Maximum Operating Current mA Maximum CMOS Standby Current mA Ordering Information Speed ns Ordering Code CY7C1049B-12VC CY7C1049B-15VC CY7C1049B-15VI CY7C1049B-17VC CY7C1049BL-17VC CY7C1049B-17VI CY7C1049B-20VC CY7C1049BL-20VC CY7C1049B-20VI CY7C1049BL-20VI CY7C1049B-25VC CY7C1049BL-25VC CY7C1049B-25VI CY7C1049BL-25VI Package Name V36 Package Type 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ Operating Range Commercial Industrial Commercial Industrial Commercial Industrial Commercial Industrial Page 8 of 10 Package Diagram 36-Lead 400-Mil Molded SOJ V36 CY7C1049B 51-85090-*B All product and company names mentioned in this document may be the trademarks of their respective holders. Page 9 of 10 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. CY7C1049B Document History Page Document Title CY7C1049B 512K x 8 Static RAM Document Number 38-05169 Issue Date Orig. of Change Description of Change 110209 12/02/01 SZV Change from Spec number 38-00937 to 38-05169 116465 09/16/02

PDF Datasheet Preview

049B

CY7C1049B
512K x 8 Static RAM
• High speed tAA = 12 ns
• Low active power 1320 mW max.
• Low CMOS standby power Commercial L version mW max.
• 2.0V Data Retention 400 µW at 2.0V retention
• Automatic power-down when deselected
• TTL-compatible inputs and outputs
• Easy memory expansion with CE and OE features

Functional Description[1]

The CY7C1049B is a high-performance CMOS static RAM organized as 524,288 words by 8 bits. Easy memory expansion

Logic Block Diagram
is provided by an active LOW Chip Enable CE , an active LOW Output Enable OE , and three-state drivers. 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/O0 through I/O7 is then written into the location specified on the address pins A0 through A18 .

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/O0 through I/O7 are placed in a 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 .

Pin Configuration

SOJ Top View

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10

ROW DECODER SENSE AMPS

INPUT BUFFER
512K x 8 ARRAY

COLUMN DECODER

POWER DOWN

I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7

A0 1 A1 2

A3 4 A4 5

I/O0 7

I/O1 8 VCC 9

GND 10

I/O2 11 I/O3 12

WE 13

A5 14 A6 15 A7 16 A8 17 A9 18
36 NC
35 A18 34 A17 33 A16 32 A15 31 OE
30 I/O7 29 I/O6 28 GND
27 VCC 26 I/O5 25 I/O4
24 A14 23 A13 22 A12 21 A11 20 A10 19 NC

A 11 A12 A13 A14 A15 A16 A17 A18

Selection Guide
7C1049B-12 7C1049B-15 7C1049B-17 7C1049B-20 7C1049B-25

Maximum Access Time ns

Maximum Operating Current mA

Maximum CMOS Standby Current mA
Ordering Information

Speed ns
Ordering Code

CY7C1049B-12VC

CY7C1049B-15VC

CY7C1049B-15VI

CY7C1049B-17VC

CY7C1049BL-17VC

CY7C1049B-17VI

CY7C1049B-20VC

CY7C1049BL-20VC

CY7C1049B-20VI

CY7C1049BL-20VI

CY7C1049B-25VC

CY7C1049BL-25VC

CY7C1049B-25VI

CY7C1049BL-25VI

Package Name V36

Package Type 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ 36-Lead 400-Mil Molded SOJ

Operating Range

Commercial

Industrial Commercial

Industrial Commercial

Industrial

Commercial

Industrial

Page 8 of 10

Package Diagram
36-Lead 400-Mil Molded SOJ V36

CY7C1049B
51-85090-*B

All product and company names mentioned in this document may be the trademarks of their respective holders.

Page 9 of 10

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.

CY7C1049B

Document History Page

Document Title CY7C1049B 512K x 8 Static RAM Document Number 38-05169

Issue Date

Orig. of Change

Description of Change
110209 12/02/01

SZV Change from Spec number 38-00937 to 38-05169
116465 09/16/02

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived CY7C1049B-17VC Datasheet file may be downloaded here without warranties.

Datasheet ID: CY7C1049B-17VC 507904