IS61LV256-15TL

IS61LV256-15TL Datasheet

IS61LV256

Part	Datasheet
IS61LV256-15TL	IS61LV256-15TL (pdf)

Related Parts	Information
IS61LV256-12TLI-TR	IS61LV256-12TLI-TR

PDF Datasheet Preview
IS61LV256 32K x 8 LOW VOLTAGE CMOS STATIC RAM FEATURES • High-speed access times: -- 8, 10, 12, 15 ns • Automatic power-down when chip is deselected • CMOS low power operation -- 345 mW max. operating -- 7 mW max. CMOS standby • TTL compatible interface levels • Single 3.3V power supply • Fully static operation no clock or refresh required • Three-state outputs • Lead-free Available June 2005 DESCRIPTION The ISSI IS61LV256 is a very high-speed, low power, 32,768-word by 8-bit static RAM. It is fabricated using ISSI's high-performance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields access times as fast as 8 ns maximum. When CE is HIGH deselected , the device assumes a standby mode at which the power dissipation is reduced to 50 µW typical with CMOS input levels. Easy memory expansion is provided by using an active LOW Chip Enable CE . The active LOW Write Enable WE controls both writing and reading of the memory. The IS61LV256 is available in the JEDEC standard 28-pin, 300-mil SOJ and the 450-mil TSOP Type I packages. FUNCTIONAL BLOCK DIAGRAM A0-A14 VDD GND I/O0-I/O7 DECODER I/O DATA CIRCUIT 32K X 8 MEMORY ARRAY COLUMN I/O CONTROL CIRCUIT Copyright 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. 1-800-379-4774 06/06/05 IS61LV256 PIN CONFIGURATION 28-Pin SOJ A14 1 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 I/O0 11 I/O1 12 I/O2 13 GND 14 28 VDD 27 WE 26 A13 25 A8 24 A9 23 A11 22 OE 21 A10 20 CE 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3 PIN CONFIGURATION 28-Pin TSOP Type I OE 22 A11 23 A9 24 A8 25 A13 26 WE 27 VDD 28 A14 1 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7 ISSI 21 A10 20 CE 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3 14 GND 13 I/O2 12 I/O1 11 I/O0 10 A0 9 A1 8 A2 PIN DESCRIPTIONS A0-A14 CE OE WE I/O0-I/O7 VDD GND Address Inputs Chip Enable Input Output Enable Input Write Enable Input/Output Power Ground TRUTH TABLE Mode Not Selected Power-down Output Disabled Read Write WE CE OE I/O Operation VDD Current ORDERING INFORMATION Commercial Range 0°C to +70°C Speed ns 8 10 12 15 Order Part No. IS61LV256-8T IS61LV256-8J IS61LV256-8JL IS61LV256-10T IS61LV256-10TL IS61LV256-10J IS61LV256-12T IS61LV256-12J IS61LV256-12JL IS61LV256-15T IS61LV256-15TL IS61LV256-15J IS61LV256-15JL Package TSOP - Type I 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free TSOP - Type I TSOP - Type I, Lead-free 300-mil Plastic SOJ TSOP - Type I 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead free TSOP - Type I TSOP - Type I, Lead free 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead free ORDERING INFORMATION Industrial Range to +85°C Speed ns 10 Order Part No. IS61LV256-10TI IS61LV256-10JI IS61LV256-12TI IS61LV256-12TLI IS61LV256-12JI IS61LV256-12JLI Package TSOP - Type I 300-mil Plastic SOJ TSOP - Type I TSOP - Type I, Lead-free 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free ISSI Integrated Silicon Solution, Inc. 1-800-379-4774 06/06/05 PACKAGING INFORMATION 300-mil Plastic SOJ Package Code J SEATING PLANE MILLIMETERS Sym. Min. Typ. Max. N0. Leads 24/26 INCHES Min. Typ. Max. Notes Controlling dimension inches, unless otherwise specified. BSC = Basic lead spacing between centers. Dimensions D and E1 do not include mold flash protrusions and should be measured from the bottom of the package. Formed leads shall be planar with respect to one another within inches at the seating plane. Copyright 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. 1-800-379-4774 PACKAGING INFORMATION 300-mil Plastic SOJ Package Code J MILLIMETERS Sym. Min. Typ. Max. Leads INCHES Min. Typ. Max. MILLIMETERS Sym. Min. Typ. Max. Leads INCHES Min. Typ. Max. Integrated Silicon Solution, Inc. 1-800-379-4774 02/25/03 PACKAGING INFORMATION Plastic TSOP - 28-pins Package Code T Type I

PDF Datasheet Preview

IS61LV256
32K x 8 LOW VOLTAGE CMOS STATIC RAM

FEATURES
• High-speed access times:
-- 8, 10, 12, 15 ns
• Automatic power-down when chip is deselected
• CMOS low power operation
-- 345 mW max. operating -- 7 mW max. CMOS standby
• TTL compatible interface levels
• Single 3.3V power supply
• Fully static operation no clock or refresh required
• Three-state outputs
• Lead-free Available

June 2005

DESCRIPTION The ISSI IS61LV256 is a very high-speed, low power,
32,768-word by 8-bit static RAM. It is fabricated using

ISSI's high-performance CMOS technology. This highly
reliable process coupled with innovative circuit design techniques, yields access times as fast as 8 ns maximum.

When CE is HIGH deselected , the device assumes a standby mode at which the power dissipation is reduced to 50 µW typical with CMOS input levels.

Easy memory expansion is provided by using an active LOW Chip Enable CE . The active LOW Write Enable WE controls both writing and reading of the memory.

The IS61LV256 is available in the JEDEC standard 28-pin, 300-mil SOJ and the 450-mil TSOP Type I packages.

FUNCTIONAL BLOCK DIAGRAM

A0-A14

VDD GND I/O0-I/O7

DECODER

I/O DATA CIRCUIT
32K X 8 MEMORY ARRAY

COLUMN I/O

CONTROL CIRCUIT

Copyright 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products.

Integrated Silicon Solution, Inc. 1-800-379-4774
06/06/05

IS61LV256

PIN CONFIGURATION 28-Pin SOJ

A14 1 A12 2

A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 I/O0 11 I/O1 12 I/O2 13 GND 14
28 VDD 27 WE 26 A13 25 A8 24 A9 23 A11 22 OE 21 A10 20 CE 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3

PIN CONFIGURATION 28-Pin TSOP Type I

OE 22 A11 23

A9 24 A8 25 A13 26 WE 27 VDD 28 A14 1 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7

ISSI
21 A10 20 CE 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3 14 GND 13 I/O2 12 I/O1 11 I/O0 10 A0 9 A1 8 A2

PIN DESCRIPTIONS

A0-A14 CE OE WE I/O0-I/O7 VDD GND

Address Inputs Chip Enable Input Output Enable Input Write Enable Input/Output Power Ground

TRUTH TABLE

Mode

Not Selected Power-down Output Disabled Read Write

WE CE OE I/O Operation VDD Current
ORDERING INFORMATION Commercial Range 0°C to +70°C

Speed ns 8 10 12 15

Order Part No.

IS61LV256-8T IS61LV256-8J IS61LV256-8JL

IS61LV256-10T IS61LV256-10TL IS61LV256-10J

IS61LV256-12T IS61LV256-12J IS61LV256-12JL

IS61LV256-15T IS61LV256-15TL IS61LV256-15J IS61LV256-15JL

Package

TSOP - Type I 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free

TSOP - Type I TSOP - Type I, Lead-free 300-mil Plastic SOJ

TSOP - Type I 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead free

TSOP - Type I TSOP - Type I, Lead free 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead free
ORDERING INFORMATION Industrial Range to +85°C

Speed ns 10

Order Part No.

IS61LV256-10TI IS61LV256-10JI

IS61LV256-12TI IS61LV256-12TLI IS61LV256-12JI IS61LV256-12JLI

Package

TSOP - Type I 300-mil Plastic SOJ

TSOP - Type I TSOP - Type I, Lead-free 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free

ISSI

Integrated Silicon Solution, Inc. 1-800-379-4774
06/06/05

PACKAGING INFORMATION
300-mil Plastic SOJ Package Code J

SEATING PLANE

MILLIMETERS

Sym. Min. Typ. Max.

N0. Leads
24/26

INCHES

Min. Typ. Max.

Notes Controlling dimension inches, unless otherwise
specified. BSC = Basic lead spacing between centers. Dimensions D and E1 do not include mold flash
protrusions and should be measured from the bottom of the package. Formed leads shall be planar with respect to one another within inches at the seating plane.

Copyright 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products.

Integrated Silicon Solution, Inc. 1-800-379-4774

PACKAGING INFORMATION
300-mil Plastic SOJ Package Code J

MILLIMETERS

Sym. Min. Typ. Max.

Leads

INCHES

Min. Typ. Max.

MILLIMETERS

Sym. Min. Typ. Max.

Leads

INCHES

Min. Typ. Max.

Integrated Silicon Solution, Inc. 1-800-379-4774
02/25/03

PACKAGING INFORMATION

Plastic TSOP - 28-pins Package Code T Type I

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 IS61LV256-15TL Datasheet file may be downloaded here without warranties.

Datasheet ID: IS61LV256-15TL 639313