CY7C1021B-15VXIT

CY7C1021B-15VXIT Datasheet

CY7C1021B

Part	Datasheet
CY7C1021B-15VXIT	CY7C1021B-15VXIT (pdf)

Related Parts	Information
CY7C1021B-15ZXC	CY7C1021B-15ZXC
CY7C1021B-15VXC	CY7C1021B-15VXC
CY7C1021B-12VXC	CY7C1021B-12VXC
CY7C1021B-15ZXI	CY7C1021B-15ZXI
CY7C1021B-12ZXCT	CY7C1021B-12ZXCT
CY7C1021B-15VXCT	CY7C1021B-15VXCT
CY7C1021B-15VXE	CY7C1021B-15VXE
CY7C1021B-15VXET	CY7C1021B-15VXET
CY7C1021B-15VXI	CY7C1021B-15VXI
CY7C1021B-15ZXCT	CY7C1021B-15ZXCT
CY7C1021B-15ZXET	CY7C1021B-15ZXET
CY7C1021B-15ZXIT	CY7C1021B-15ZXIT
CY7C1021BL-15ZXI	CY7C1021BL-15ZXI
CY7C1021BL-15ZXIT	CY7C1021BL-15ZXIT
CY7C1021B-12VXCT	CY7C1021B-12VXCT
CY7C1021B-12VXI	CY7C1021B-12VXI
CY7C1021B-12VXIT	CY7C1021B-12VXIT
CY7C1021B-12ZXC	CY7C1021B-12ZXC
CY7C1021B-15ZXE	CY7C1021B-15ZXE
CY7C1021B-12VC	CY7C1021B-12VC
CY7C1021B-15VC	CY7C1021B-15VC
CY7C1021B-15ZC	CY7C1021B-15ZC

PDF Datasheet Preview
CY7C1021B 1-Mbit 64K x 16 Static RAM • Temperature Ranges Commercial 0°C to 70°C Industrial to 85°C Automotive to 125°C • High speed tAA = 12 ns Commercial & Industrial tAA = 15 ns Automotive • CMOS for optimum speed/power • Low active power 770 mW max. • Automatic power-down when deselected • Independent control of upper and lower bits • Available in Pb-free and non Pb-free 44-pin TSOP II and 44-pin 400-mil-wide SOJ Functional Description[1] The CY7C1021B is a high-performance CMOS static RAM organized as 65,536 words by 16 bits. This device has an automatic power-down feature that significantly reduces power consumption when deselected. Writing to the device is accomplished by taking Chip Enable CE and Write Enable WE inputs LOW. If Byte Low Enable BLE is LOW, then data from I/O pins I/O1 through I/O8 , is written into the location specified on the address pins A0 through A15 . If Byte High Enable BHE is LOW, then data from I/O pins I/O9 through I/O16 is written into the location specified on the address pins A0 through A15 . Reading from the device is accomplished by taking Chip Enable CE and Output Enable OE LOW while forcing the Write Enable WE HIGH. If Byte Low Enable BLE is LOW, then data from the memory location specified by the address pins will appear on I/O1 to I/O8. If Byte High Enable BHE is LOW, then data from memory will appear on I/O9 to I/O16. See the truth table at the back of this data sheet for a complete description of read and write modes. The input/output pins I/O1 through I/O16 are placed in a high-impedance state when the device is deselected CE HIGH , the outputs are disabled OE HIGH , the BHE and BLE are disabled BHE, BLE HIGH , or during a write operation CE LOW, and WE LOW . The CY7C1021B is available in standard 44-pin TSOP Type II and 44-pin 400-mil-wide SOJ packages. Logic Block Diagram DATA IN DRIVERS ROW DECODER A8 A9 A10 A11 A12 A13 A14 A15 SENSE AMPS 64K x 16 RAM Array 512 X 2048 COLUMN DECODER BHE WE CE OE BLE Note For best-practice recommendations, please refer to the Cypress application note “System Design Guidelines” on Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 [+] Feedback CY7C1021B Selection Guide Maximum Access Time ns Maximum Operating Current mA Maximum CMOS Standby Current mA Pin Configurations Com’l/Ind’l Automotive Com’l/Ind’l Automotive L Version SOJ/TSOP II Top View A4 1 A3 2 A2 3 A1 4 A0 5 CE 6 I/O1 7 I/O2 8 I/O3 9 I/O4 10 VCC 11 VSS 12 I/O5 13 I/O6 14 I/O7 15 I/O8 16 WE 17 A15 18 A14 19 A13 20 A12 21 NC 22 44 A5 43 A6 42 A7 41 OE 40 BHE 39 BLE 38 I/O16 37 I/O15 36 I/O14 35 I/O13 34 VSS 33 VCC 32 I/O12 31 I/O11 30 I/O10 29 I/O9 28 NC 27 A8 26 A9 25 A10 24 A11 23 NC Pin Definitions Ordering Information Speed ns Ordering Code CY7C1021B-12VC CY7C1021B-12VXC CY7C1021B-12ZC CY7C1021B-12ZXC CY7C1021B-12VI CY7C1021B-12VXI Package Name 51-85082 51-85087 51-85082 Package Type 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free Power Standby ISB Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC Operating Range Commercial Industrial Page 7 of 10 [+] Feedback Ordering Information continued Speed ns Ordering Code CY7C1021B-15VC CY7C1021B-15VXC CY7C1021B-15ZC CY7C1021B-15ZXC CY7C1021B-15VI CY7C1021B-15VXI CY7C1021B-15ZI CY7C1021BL-15ZI CY7C1021B-15ZXI CY7C1021BL-15ZXI CY7C1021B-15VE CY7C1021B-15VXE CY7C1021B-15ZE CY7C1021B-15ZSXE Package Diagrams CY7C1021B Package Name 51-85082 51-85087 51-85082 51-85087 51-85082 51-85087 Package Type 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free Operating Range Commercial Industrial Automotive 44-pin 400-Mil Molded SOJ 51-85082 DIMENSIONS IN INCHES MIN. MAX. MAX. 22 SEATING PLANE TYP. MIN. MIN. 0° -10° 51-85082-B Page 8 of 10 [+] Feedback Package Diagrams continued 44-Pin TSOP II 51-85087 CY7C1021B 51-85087-A All products 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 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. [+] Feedback CY7C1021B Document History Page Document Title CY7C1021B 1-Mbit 64K x 16 Static RAM Document Number 38-05145 Orig. of ECN NO. Issue Date Change Description of Change 109889 09/22/01 SZV Change from Spec number 38-00951 to 38-05145 238454 See ECN RKF 1 Added Automotive Specs to Data Sheet 2 Added Pb-Free device offering in the Ordering Information 361795 See ECN SYT Added Pb-Free offerings in the Ordering Information 505726 See ECN NXR Removed CY7C10211B from Product offering Changed the description of IIX from Input Load Current to Input Leakage Current in DC Electrical Characteristics table Changed teh ICC Max value from 150 mA to 130 mA Removed IOS parameter from DC Electrical Characteristics table Updated Ordering Information Table Page 10 of 10 [+] Feedback

PDF Datasheet Preview

CY7C1021B
1-Mbit 64K x 16 Static RAM
• Temperature Ranges Commercial 0°C to 70°C Industrial to 85°C Automotive to 125°C
• High speed tAA = 12 ns Commercial & Industrial tAA = 15 ns Automotive
• CMOS for optimum speed/power
• Low active power
770 mW max.
• Automatic power-down when deselected
• Independent control of upper and lower bits
• Available in Pb-free and non Pb-free 44-pin TSOP II and
44-pin 400-mil-wide SOJ

Functional Description[1]

The CY7C1021B is a high-performance CMOS static RAM organized as 65,536 words by 16 bits. This device has an
automatic power-down feature that significantly reduces power consumption when deselected.

Writing to the device is accomplished by taking Chip Enable CE and Write Enable WE inputs LOW. If Byte Low Enable BLE is LOW, then data from I/O pins I/O1 through I/O8 , is written into the location specified on the address pins A0 through A15 . If Byte High Enable BHE is LOW, then data from I/O pins I/O9 through I/O16 is written into the location specified on the address pins A0 through A15 .

Reading from the device is accomplished by taking Chip Enable CE and Output Enable OE LOW while forcing the Write Enable WE HIGH. If Byte Low Enable BLE is LOW, then data from the memory location specified by the address pins will appear on I/O1 to I/O8. If Byte High Enable BHE is LOW, then data from memory will appear on I/O9 to I/O16. See the truth table at the back of this data sheet for a complete description of read and write modes.

The input/output pins I/O1 through I/O16 are placed in a high-impedance state when the device is deselected CE HIGH , the outputs are disabled OE HIGH , the BHE and BLE are disabled BHE, BLE HIGH , or during a write operation CE LOW, and WE LOW .

The CY7C1021B is available in standard 44-pin TSOP Type II and 44-pin 400-mil-wide SOJ packages.

Logic Block Diagram

DATA IN DRIVERS

ROW DECODER A8 A9 A10 A11 A12 A13 A14 A15

SENSE AMPS
64K x 16

RAM Array
512 X 2048

COLUMN DECODER

BHE WE CE OE BLE

Note For best-practice recommendations, please refer to the Cypress application note “System Design Guidelines” on

Cypress Semiconductor Corporation
• 198 Champion Court
• San Jose, CA 95134-1709
• 408-943-2600
[+] Feedback

CY7C1021B

Selection Guide

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

Pin Configurations

Com’l/Ind’l Automotive Com’l/Ind’l Automotive L Version

SOJ/TSOP II Top View

A4 1 A3 2 A2 3 A1 4 A0 5 CE 6

I/O1 7 I/O2 8 I/O3 9

I/O4 10 VCC 11 VSS 12 I/O5 13 I/O6 14 I/O7 15 I/O8 16 WE 17

A15 18 A14 19 A13 20 A12 21 NC 22
44 A5 43 A6
42 A7 41 OE
40 BHE 39 BLE
38 I/O16 37 I/O15 36 I/O14 35 I/O13 34 VSS 33 VCC 32 I/O12 31 I/O11 30 I/O10 29 I/O9 28 NC 27 A8 26 A9 25 A10 24 A11 23 NC

Pin Definitions
Ordering Information

Speed ns
Ordering Code CY7C1021B-12VC CY7C1021B-12VXC CY7C1021B-12ZC CY7C1021B-12ZXC CY7C1021B-12VI CY7C1021B-12VXI

Package Name
51-85082
51-85087
51-85082

Package Type 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free

Power Standby ISB Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC Active ICC

Operating Range

Commercial

Industrial

Page 7 of 10 [+] Feedback
Ordering Information continued

Speed ns
Ordering Code CY7C1021B-15VC CY7C1021B-15VXC CY7C1021B-15ZC CY7C1021B-15ZXC CY7C1021B-15VI CY7C1021B-15VXI CY7C1021B-15ZI CY7C1021BL-15ZI CY7C1021B-15ZXI CY7C1021BL-15ZXI CY7C1021B-15VE CY7C1021B-15VXE CY7C1021B-15ZE CY7C1021B-15ZSXE

Package Diagrams

CY7C1021B

Package Name
51-85082 51-85087 51-85082 51-85087
51-85082 51-85087

Package Type 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free 44-pin TSOP Type II Pb-Free 44-pin 400-Mil Molded SOJ 44-pin 400-Mil Molded SOJ Pb-Free 44-pin TSOP Type II 44-pin TSOP Type II Pb-Free

Operating Range

Commercial

Industrial

Automotive
44-pin 400-Mil Molded SOJ 51-85082

DIMENSIONS IN INCHES MIN. MAX.

MAX.
22 SEATING PLANE

TYP.

MIN.

MIN.
0° -10°
51-85082-*B

Page 8 of 10 [+] Feedback

Package Diagrams continued
44-Pin TSOP II 51-85087

CY7C1021B
51-85087-*A

All products 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 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.
[+] Feedback

CY7C1021B

Document History Page

Document Title CY7C1021B 1-Mbit 64K x 16 Static RAM Document Number 38-05145

Orig. of ECN NO. Issue Date Change

Description of Change
109889 09/22/01

SZV Change from Spec number 38-00951 to 38-05145
238454 See ECN RKF 1 Added Automotive Specs to Data Sheet
2 Added Pb-Free device offering in the Ordering Information
361795 See ECN SYT Added Pb-Free offerings in the Ordering Information
505726 See ECN NXR Removed CY7C10211B from Product offering

Changed the description of IIX from Input Load Current to Input Leakage Current in DC Electrical Characteristics table
Changed teh ICC Max value from 150 mA to 130 mA Removed IOS parameter from DC Electrical Characteristics table Updated Ordering Information Table

Page 10 of 10 [+] Feedback

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 CY7C1021B-15VXIT Datasheet file may be downloaded here without warranties.

Datasheet ID: CY7C1021B-15VXIT 507890