CY7C188-20VC

CY7C188-20VC Datasheet


CY7C188

Part Datasheet
CY7C188-20VC CY7C188-20VC CY7C188-20VC (pdf)
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CY7C188
32 K x 9 Static RAM
32 K x 9 Static RAM
• High speed 20 ns
• Automatic power-down when deselected
• Low active power
935 mW
• Low standby power
83 mW
• CMOS for optimum speed/power
• TTL-compatible inputs and outputs
• Easy memory expansion with CE1, CE2, and OE features
• Available in non Pb-free 32-Lead 300-Mil Molded SOJ

Logic Block Diagram

Functional Description

The CY7C188 is a high-performance CMOS static RAM organized as 32,768 words by 9 bits. Easy memory expansion is provided by an active-LOW chip enable CE1 , an active-HIGH chip enable CE2 , an active-LOW output enable OE , and tri-state drivers. The device has an automatic power-down feature that reduces power consumption by more than 75% when deselected. Writing to the device is accomplished by taking CE1 and write enable WE inputs LOW and CE2 input HIGH. Data on the nine I/O pins I/Oo I/O8 is then written into the location specified on the address pins A0 A14 . Reading from the device is accomplished by taking CE1 and OE LOW while forcing WE and CE2 HIGH. Under these conditions, the contents of the memory location specified by the address pins will appear on the I/O pins. The nine input/output pins I/O0 I/O8 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 CY7C188 is available in standard 300-mil-wide SOJ.

A0 A1 A2 A3 A4 A5 A6

CE1 CE2 WE OE

ROW DECODER SENSE AMPS

INPUT BUFFER
32K x 9 ARRAY

COLUMN DECODER

POWER DOWN

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

I/O8

A7 A8 A9 A 10 A 11 A 12 A 13 A 14
• San Jose, CA 95134-1709
• 408-943-2600
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CY7C188

Contents

Pin Configuration 3 Selection Guide 3 Maximum Ratings 4 Operating Range 4 Electrical Characteristics 4 Capacitance 4 AC Test Loads and Waveforms 5 Switching Characteristics 5 Switching Waveforms 6

Read Cycle No. 1 6 Read Cycle No. 2 Chip-Enable Controlled 6 Write Cycle No. 1 WE Controlled 6 Write Cycle No.2 CE Controlled 7 Write Cycle No. 3 WE Controlled, OE LOW 7
Truth Table 7 Ordering Information 8
Ordering Code Definitions 8 Package Diagram 8 Acronyms 9 Document Conventions 9

Units of Measure 9 Document History Page 10 Sales, Solutions, and Legal Information 10

Worldwide Sales and Design Support 10 Products 10 PSoC Solutions 10

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Pin Configuration

Selection Guide

Description Maximum Access Time ns Maximum Operating Current mA Maximum CMOS Standby Current mA

SOJ Top View

A8 3 A7 4

A6 5 A5 6 A4 7 A3 8 A2 9

A1 10 A0 11

I/O0 12 I/O1 13 I/O2 14 I/O3 15

GND 16
32 VCC
31 A14 30 CE2 29 WE
28 A13 27 A9 26 A10 25 A11
24 OE
23 A12 22 CE1 21 I/O8 20 I/O7 19 I/O6 18 I/O5 17 I/O4
20 170 15

CY7C188

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CY7C188

Maximum Ratings

Exceeding the maximum ratings may impair the useful life of the device. These user guidelines are not tested. Storage Temperature C to +150 C Ambient Temperature with Power Applied C to +125 C Supply Voltage on VCC Relative to GND Pin 32 to Pin V to V DC Voltage Applied to Outputs in high Z State[1] V to VCC + V

Electrical Characteristics

DC Input Voltage[1] V to VCC + V Output Current into Outputs LOW ............................. 20 mA Static Discharge > 2001 V per MIL-STD-883, Method 3015 Latch-up > 200 mA

Operating Range

Range Commercial

Ambient Temperature 0 C to +70 C

VCC 5 V  10%

Over the Operating Range[2]

Parameter

VOH VOL VIH VIL IIX IOZ ICC ISB1

ISB2

Description Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage[1] Input Leakage Current Output Leakage Current VCC Operating Supply Current Automatic CE Power-Down Current TTL Inputs Automatic CE Power-Down Current CMOS Inputs

Capacitance[3]

Test Conditions VCC = Min, IOH = mA VCC = Min, IOL = mA

GND VI VCC GND VI VCC, Output Disabled VCC = Max, IOUT = 0 mA, f = fMAX = 1/tRC Max VCC, CE1 VIH or CE2 VIL,VIN VIH or VIN VIL, f = fMAX Max VCC, CE1 VCC V or CE2 V, VIN VCC V or VIN V, f = 0

Unit

VCC + V

Parameter
Ordering Information

Speed ns 20
Ordering Code

Package Name
51-85041

Package Type 32-pin 300-Mil Molded SOJ
Ordering Code Definitions CY 7C 188 - 20 V C

C = Temperature range Commercial V = 32-pin 300-Mil Molded SOJ 20 = Speed grade Part Identifier Family 7C = Fast asynchronous SRAM Company ID CY = Cypress

Package Diagram

Figure 32-Lead 300-Mil Molded SOJ, 51-85041

CY7C188

Operating Range

Commercial
51-85041 *B

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CY7C188

Acronyms

Acronym CMOS CE DIP I/O OE SRAM SOJ TTL WE

Description complementary metal oxide semiconductor chip enable dual inline package input/output enable static random access memory small outline J-lead transistor-transistor logic write enable

Document Conventions

Units of Measure

Symbol ns V µA mA mV mW pF °C W % MHz

Unit of Measure nano seconds Volts micro Amperes milli Amperes milli Volts milli Watts pico Farad degree Celcius Watts percent Mega Hertz

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CY7C188

Document History Page

Document Title CY7C188 32 K x 9 Static RAM Document Number 38-05053

ECN NO.

Issue Date

Orig. of Change

Description of Change
107155 09/10/01

SZV Change from Spec number 38-00220 to 38-05053
506367 See ECN

CCuhrarnegnet Current to Input Leakage
Removed IOS parameter from DC Electrical Characteristics table Updated Ordering Information table
2894123 03/17/2010 VKN Added Table of Contents

Removed 15ns speed bin
Updated Ordering Information table

Updated Package Diagram Figure 1

Added Sales, Solutions, and Legal Information
3096933 11/30/2010 PRAS Added Ordering Code Definitions.

Added Acronyms and Units of Measure.

Minor edits.

Sales, Solutions, and Legal Information

Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations.

Products Automotive Clocks & Buffers Interface Lighting & Power Control

Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF
cypress.com/go/automotive cypress.com/go/clocks
cypress.com/go/interface cypress.com/go/powerpsoc
cypress.com/go/plc cypress.com/go/memory
cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB
cypress.com/go/wireless

PSoC Solutions psoc.cypress.com/solutions PSoC 1 | PSoC 3 | PSoC 5

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.

Any Source Code software and/or firmware is owned by Cypress Semiconductor Corporation Cypress and is protected by and subject to worldwide patent protection United States and foreign , United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress.

Disclaimer CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. 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’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

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

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Datasheet ID: CY7C188-20VC 508077