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

1

Preliminary Information

Rev. 00H

02/23/06

IS25C08

IS25C16

Copyright © 2006 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.

8K-BIT/16K-BIT SPI SERIAL

ELECTRICALLY ERASABLE PROM

FEATURES

• Serial Peripheral Interface (SPI) Compatible

— Supports SPI Modes 0 (0,0) and 3 (1,1)

• Wide-voltage Operation

— Vcc = 1.8V to 5.5V

• Low power CMOS

— Active current less than 3.0 mA (2.5V)

— Standby current less than 2.0 µA (2.5V)

• Block Write Protection

— Protect 1/4, 1/2, or Entire Array

• 16 byte page write mode

— Partial page writes allowed

• 10 MHz Clock Rate (5V)

• Self timed write cycles (5 ms Typical)

• High-reliability

— Endurance: 1 million cycles per byte

— Data retention: 100 years

• Industrial and Automotive temperature ranges

• 8-pin PDIP, 8-pin SOIC, 8-pin TSSOP, and chip scale

packages are available

• Lead-free available

Preliminary Information

APRIL 2006

The IS25C08 and IS25C16 are electrically erasable

PROM devices that use the Serial Peripheral Interface

(SPI) for communications. The IS25C08 is 8Kbit

(1024x 8) and the IS25C16 is 16Kbit (2048 x 8). The

IS25C08/16 EEPROMs are offered in a wide operating

voltage range of 1.8V to 5.5V compatible with most

application voltages. ISSI designed the IS25C08/16 to

be an efficient SPI EEPROM solution. The devices are

packaged in 8-pin PDIP, 8-pin SOIC, 8-pin TSSOP, and

8-ball CSP.

The functional features of the IS25C08/16 allow them to

be among the most advanced serial non-volatile memo-

ries available. Each device has a Chip-Select (

CS) pin,

and a 3-wire interface of Serial Data In (SI), Serial Data

Out (SO), and Serial Clock (SCK). While the 3-wire

interface of the IS25C08/16 provides for high-speed

access, a

HOLD pin allows the memories to ignore the

interface in a suspended state; later the

HOLD pin re-

activates communication without re-initializing the serial

sequence. A Status Register facilitates a flexible write

protection mechanism, and a device-ready bit (

RDY).

DESCRIPTION