IS62C256-70U-TR

IS62C256-70U-TR Datasheet

IS62C256

Part	Datasheet
IS62C256-70U-TR	IS62C256-70U-TR (pdf)

Related Parts	Information
IS62C256-70UI	IS62C256-70UI
IS62C256-70U	IS62C256-70U

PDF Datasheet Preview
IS62C256 32K x 8 LOW POWER CMOS STATIC RAM ISSI FEATURES • Access time 45, 70 ns • Low active power 200 mW typical • Low standby power 250 µW typical CMOS standby 28 mW typical TTL standby • Fully static operation no clock or refresh required • TTL compatible inputs and outputs • Single 5V power supply DESCRIPTION The ISSI IS62C256 is a low power, 32,768 word by 8-bit CMOS static RAM. It is fabricated using ISSI's high- performance, low power CMOS technology. When CS is HIGH deselected , the device assumes a standby mode at which the power dissipation can be reduced down to 250 µW typical at CMOS input levels. Easy memory expansion is provided by using an active LOW Chip Select CS input and an active LOW Output Enable OE input. The active LOW Write Enable WE controls both writing and reading of the memory. The IS62C256 is pin compatible with other 32K x 8 SRAMs in plastic SOP or TSOP Type I package. FUNCTIONAL BLOCK DIAGRAM A0-A14 VCC GND I/O0-I/O7 DECODER 32K X 8 MEMORY ARRAY I/O DATA CIRCUIT COLUMN I/O CONTROL CIRCUIT ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. Copyright 1999, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. 1-800-379-4774 SR072-1E 05/12/99 IS62C256 PIN CONFIGURATION 28-Pin SOP 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 VCC 27 WE 26 A13 25 A8 24 A9 23 A11 22 OE 21 A10 20 CS 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3 PIN CONFIGURATION 28-Pin TSOP OE 22 A11 23 A9 24 A8 25 A13 26 WE 27 VCC 28 A14 1 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7 ISSI 21 A10 20 CS 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 CS OE WE I/O0-I/O7 Address Inputs Chip Select Input Output Enable Input Write Enable Input/Output Power Ground ORDERING INFORMATION Commerical Range 0°C to +70°C Speed ns 45 Order Part No. IS62C256-45T IS62C256-45U IS62C256-70T IS62C256-70U Package TSOP Plastic SOP TSOP Plastic SOP ORDERING INFORMATION Industrial Range to +85°C Speed ns 45 Order Part No. IS62C256-45TI IS62C256-45UI IS62C256-70TI IS62C256-70UI Package TSOP Plastic SOP TSOP Plastic SOP ISSI Integrated Silicon Solution, Inc. 2231 Lawson Lane Santa Clara, CA 95054 Tel 1-800-379-4774 Fax 408 588-0806 E-mail: Integrated Silicon Solution, Inc. 1-800-379-4774 SR072-1E 05/12/99

PDF Datasheet Preview

IS62C256
32K x 8 LOW POWER CMOS STATIC RAM

ISSI

FEATURES
• Access time 45, 70 ns
• Low active power 200 mW typical
• Low standby power
250 µW typical CMOS standby 28 mW typical TTL standby
• Fully static operation no clock or refresh required
• TTL compatible inputs and outputs
• Single 5V power supply

DESCRIPTION The ISSI IS62C256 is a low power, 32,768 word by 8-bit CMOS static RAM. It is fabricated using ISSI's high-
performance, low power CMOS technology.

When CS is HIGH deselected , the device assumes a standby
mode at which the power dissipation can be reduced down to 250 µW typical at CMOS input levels.

Easy memory expansion is provided by using an active LOW

Chip Select CS input and an active LOW Output Enable OE input. The active LOW Write Enable WE controls both writing
and reading of the memory.

The IS62C256 is pin compatible with other 32K x 8 SRAMs in plastic SOP or TSOP Type I package.

FUNCTIONAL BLOCK DIAGRAM

A0-A14

VCC GND I/O0-I/O7

DECODER
32K X 8 MEMORY ARRAY

I/O DATA CIRCUIT

COLUMN I/O

CONTROL

CIRCUIT

ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. Copyright 1999, Integrated Silicon Solution, Inc.

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

SR072-1E
05/12/99

IS62C256

PIN CONFIGURATION 28-Pin SOP

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 VCC 27 WE 26 A13 25 A8 24 A9 23 A11 22 OE 21 A10 20 CS 19 I/O7 18 I/O6 17 I/O5 16 I/O4 15 I/O3

PIN CONFIGURATION 28-Pin TSOP

OE 22 A11 23

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

ISSI
21 A10 20 CS 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

CS OE WE

I/O0-I/O7

Address Inputs Chip Select Input Output Enable Input Write Enable Input/Output Power Ground
ORDERING INFORMATION Commerical Range 0°C to +70°C

Speed ns 45

Order Part No.

IS62C256-45T IS62C256-45U

IS62C256-70T IS62C256-70U

Package

TSOP Plastic SOP

TSOP Plastic SOP
ORDERING INFORMATION Industrial Range to +85°C

Speed ns 45

Order Part No.

IS62C256-45TI IS62C256-45UI

IS62C256-70TI IS62C256-70UI

Package

TSOP Plastic SOP

TSOP Plastic SOP

ISSI

Integrated Silicon Solution, Inc.
2231 Lawson Lane Santa Clara, CA 95054

Tel 1-800-379-4774 Fax 408 588-0806 E-mail:

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

SR072-1E
05/12/99

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 IS62C256-70U-TR Datasheet file may be downloaded here without warranties.

Datasheet ID: IS62C256-70U-TR 639318