CY62256LL-55ZXI

CY62256LL-55ZXI Datasheet

CY62256

Part	Datasheet
CY62256LL-55ZXI	CY62256LL-55ZXI (pdf)

Related Parts	Information
CY62256LL-70ZXC	CY62256LL-70ZXC
CY62256LL-70PXC	CY62256LL-70PXC
CY62256LL-70SNXC	CY62256LL-70SNXC
CY62256LL-70SNXIT	CY62256LL-70SNXIT
CY62256LL-70ZXIT	CY62256LL-70ZXIT
CY62256LL-70ZXI	CY62256LL-70ZXI
CY62256LL-70ZXCT	CY62256LL-70ZXCT
CY62256LL-70ZRXI	CY62256LL-70ZRXI
CY62256LL-70SNXI	CY62256LL-70SNXI
CY62256LL-70SNXCT	CY62256LL-70SNXCT
CY62256LL-55SNXIT	CY62256LL-55SNXIT
CY62256LL-55SNXI	CY62256LL-55SNXI
CY62256L-70SNXIT	CY62256L-70SNXIT
CY62256L-70SNXI	CY62256L-70SNXI
CY62256L-70SNXCT	CY62256L-70SNXCT
CY62256LL-55ZXIT	CY62256LL-55ZXIT
CY62256LL-70ZRXIT	CY62256LL-70ZRXIT
CY62256L-70PC	CY62256L-70PC
CY62256L-70SNC	CY62256L-70SNC
CY62256LL-70PC	CY62256LL-70PC
CY62256LL-70SNC	CY62256LL-70SNC
CY62256LL-70ZC	CY62256LL-70ZC
CY62256L-70SNXC	CY62256L-70SNXC
CY62256L-70PXC	CY62256L-70PXC

PDF Datasheet Preview
CY62256 256K 32K x 8 Static RAM • Temperature Ranges Commercial 0°C to 70°C Industrial to 85°C Automotive to 125°C • High speed 55 ns and 70 ns • Voltage range operation • Low active power 70 ns, LL version, Com’l and Ind’l 275 mW max. • Low standby power 70 ns, LL version, Com’l and Ind’l 28 µW max. • Easy memory expansion with CE and OE features • TTL-compatible inputs and outputs • Automatic power-down when deselected • CMOS for optimum speed/power • Package available in a standard 450-mil-wide 300-mil Logic Block Diagram Functional Description[1] The CY62256 is a high-performance CMOS static RAM organized as 32K words by 8 bits. Easy memory expansion is provided by an active LOW chip enable CE and active LOW output enable OE and three-state drivers. This device has an automatic power-down feature, reducing the power consumption by when deselected. An active LOW write enable signal WE controls the writing/reading operation of the memory. When CE and WE inputs are both LOW, data on the eight data input/output pins I/O0 through I/O7 is written into the memory location addressed by the address present on the address pins A0 through A14 . Reading the device is accomplished by selecting the device and enabling the outputs, CE and OE active LOW, while WE remains inactive or HIGH. Under these conditions, the contents of the location addressed by the information on address pins are present on the eight data input/output pins. The input/output pins remain in a high-impedance state unless the chip is selected, outputs are enabled, and write enable WE is HIGH. ROW DECODER A14 A13 A12 A11 A1 A0 SENSE AMPS I/O0 INPUTBUFFER I/O1 A9 A8 I/O2 A6 A5 512 x 512 ARRAY I/O3 I/O4 I/O5 COLUMN POWER DOWN I/O6 DECODER I/O7 Note For best practice recommendations, please refer to the Cypress application note “System Design Guidelines” on • 198 Champion Court • San Jose, CA 95134 • 408-943-2600 CY62256 Product Portfolio Product CY62256 Commercial CY62256L Com’l / Ind’l CY62256LL Commercial CY62256LL Industrial CY62256LL Automotive Pin Configurations Min. Ordering Information Speed ns 55 Ordering Code CY62256LL−55SNI CY62256LL−55SNXI CY62256LL−55ZI CY62256LL−55ZXI CY62256LL−55SNE CY62256LL−55SNXE CY62256LL−55ZE CY62256LL−55ZXE CY62256LL−55ZRE CY62256LL−55ZRXE CY62256−70SNC CY62256L−70SNC CY62256L−70SNXC CY62256LL−70SNC CY62256LL−70SNXC CY62256LL−70SNI CY62256LL−70SNXI CY62256LL−70ZC CY62256LL−70ZXC CY62256LL−70ZI CY62256LL−70ZXI CY62256−70PC CY62256L−70PC CY62256L−70PXC CY62256LL−70PC CY62256LL−70PXC CY62256LL−70ZRI CY62256LL−70ZRXI CY62256 Package Name SN28 Z28 SN28 Z28 ZR28 SN28 Z28 P15 ZR28 Operating Range Industrial Automotive Commercial Industrial Commercial Industrial Commercial Industrial Page 10 of 13 Package Diagrams 28-lead 600-mil Molded DIP P15 CY62256 28-lead 300-mil SNC Narrow Body SN28 51-85017-A 51-85092-B Page 11 of 13 Package Diagrams continued 28-lead Thin Small Outline Package Type 1 8 x mm Z28 CY62256 51-85071-G 51-85074-F All product and company names mentioned in this document are the trademarks of their respective holders. Page 12 of 13 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 product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress 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 products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. CY62256 Document History Page Document Title CY62256 256K 32K x 8 Static RAM Document Number 38-05248 Description of Change 113454 03/06/02 MGN Change from Spec number 38-00455 to 38-05248 Remove obsolete parts from ordering info, standardize format 115227 05/23/02 GBI Changed SN Package Diagram 116506 09/04/02 GBI Added footnote Corrected package description in Ordering Information table 238448 See ECN AJU Added Automotive product information 344595 See ECN SYT Added Pb-Free packages on page# 10 395936 See ECN SYT Changed address of Cypress Semiconductor Corporation on Page# 1 from “3901 North First Street” to “198 Champion Court” Added package in the Ordering Information on Page # 10 Page 13 of 13

PDF Datasheet Preview

CY62256
256K 32K x 8 Static RAM
• Temperature Ranges Commercial 0°C to 70°C Industrial to 85°C Automotive to 125°C
• High speed 55 ns and 70 ns
• Voltage range operation
• Low active power 70 ns, LL version, Com’l and Ind’l
275 mW max.
• Low standby power 70 ns, LL version, Com’l and Ind’l
28 µW max.
• Easy memory expansion with CE and OE features
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
• CMOS for optimum speed/power
• Package available in a standard 450-mil-wide 300-mil

Logic Block Diagram

Functional Description[1]

The CY62256 is a high-performance CMOS static RAM organized as 32K words by 8 bits. Easy memory expansion is provided by an active LOW chip enable CE and active LOW output enable OE and three-state drivers. This device has an automatic power-down feature, reducing the power consumption by when deselected.

An active LOW write enable signal WE controls the writing/reading operation of the memory. When CE and WE inputs are both LOW, data on the eight data input/output pins I/O0 through I/O7 is written into the memory location addressed by the address present on the address pins A0 through A14 . Reading the device is accomplished by selecting the device and enabling the outputs, CE and OE active LOW, while WE remains inactive or HIGH. Under these conditions, the contents of the location addressed by the information on address pins are present on the eight data input/output pins.

The input/output pins remain in a high-impedance state unless the chip is selected, outputs are enabled, and write enable WE is HIGH.

ROW DECODER A14 A13 A12 A11 A1 A0

SENSE AMPS

I/O0 INPUTBUFFER

I/O1

A9 A8

I/O2

A6 A5
512 x 512 ARRAY

I/O3

I/O4

I/O5

COLUMN

POWER DOWN

I/O6

DECODER

I/O7

Note For best practice recommendations, please refer to the Cypress application note “System Design Guidelines” on
• 198 Champion Court
• San Jose, CA 95134
• 408-943-2600

CY62256

Product Portfolio

Product

CY62256

Commercial

CY62256L

Com’l / Ind’l

CY62256LL Commercial

CY62256LL Industrial

CY62256LL Automotive

Pin Configurations

Min.
Ordering Information

Speed ns 55
Ordering Code CY62256LL−55SNI CY62256LL−55SNXI CY62256LL−55ZI CY62256LL−55ZXI CY62256LL−55SNE CY62256LL−55SNXE CY62256LL−55ZE CY62256LL−55ZXE CY62256LL−55ZRE CY62256LL−55ZRXE CY62256−70SNC CY62256L−70SNC CY62256L−70SNXC CY62256LL−70SNC CY62256LL−70SNXC CY62256LL−70SNI CY62256LL−70SNXI CY62256LL−70ZC CY62256LL−70ZXC CY62256LL−70ZI CY62256LL−70ZXI CY62256−70PC CY62256L−70PC CY62256L−70PXC CY62256LL−70PC CY62256LL−70PXC CY62256LL−70ZRI CY62256LL−70ZRXI

CY62256

Package Name SN28 Z28 SN28 Z28 ZR28 SN28 Z28 P15 ZR28

Operating Range

Industrial

Automotive

Commercial

Industrial

Commercial Industrial

Commercial

Industrial

Page 10 of 13

Package Diagrams
28-lead 600-mil Molded DIP P15

CY62256
28-lead 300-mil SNC Narrow Body SN28
51-85017-*A
51-85092-*B

Page 11 of 13

Package Diagrams continued
28-lead Thin Small Outline Package Type 1 8 x mm Z28

CY62256
51-85071-*G
51-85074-*F

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

Page 12 of 13

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 product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress 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 products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

CY62256

Document History Page

Document Title CY62256 256K 32K x 8 Static RAM Document Number 38-05248

Description of Change
113454 03/06/02 MGN Change from Spec number 38-00455 to 38-05248
Remove obsolete parts from ordering info, standardize format
115227 05/23/02 GBI Changed SN Package Diagram
116506 09/04/02 GBI Added footnote
Corrected package description in Ordering Information table
238448 See ECN AJU Added Automotive product information
344595 See ECN SYT Added Pb-Free packages on page# 10
395936 See ECN SYT Changed address of Cypress Semiconductor Corporation on Page# 1 from
“3901 North First Street” to “198 Champion Court”
Added package in the Ordering Information on Page # 10

Page 13 of 13

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 CY62256LL-55ZXI Datasheet file may be downloaded here without warranties.

Datasheet ID: CY62256LL-55ZXI 507828