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IS25LD256C

256Kbit Single Operating Voltage Serial Flash Memory With 100 MHz Dual-Output SPI Bus Interface

Integrated Silicon Solution 

256Kbit Single Operating Voltage Serial Flash Memory

With 100 MHz Dual-Output SPI Bus Interface

IS25LD256C

FEATURES

• Single Power Supply Operation

- Low voltage range: 2.7 V - 3.6 V

• Memory Organization

- IS25LD256C: 32K x 8 (256Kbit)

• Cost Effective Sector/Block Architecture

-256Kb : Uniform 4KByte sectors / one uniform

32KByte blocks

• Low standby current 1uA (Typ)

• Serial Peripheral Interface (SPI) Compatible

- Supports single- or dual-output

- Supports SPI Modes 0 and 3

- Maximum 33 MHz clock rate for normal read

- Maximum 100 MHz clock rate for fast read

• Page Program (up to 256 Bytes) Operation

- Typical 2 ms per page program

• Sector, Block or Chip Erase Operation

- Maximum 7 ms sector, block or chip erase

• Low Power Consumption

- Typical 1 mA active read current

- Typical 10 mA program/erase current

• Hardware Write Protection

- Protect and unprotect the device from write

operation by Write Protect (WP#) Pin

• Software Write Protection

- The Block Protect (BP2, BP1, BP0) bits allow

partial or entire memory to be configured as read-

only

• High Product Endurance

- Guaranteed 200,000 program/erase cycles per

single sector

- Minimum 20 years data retention

• Industrial Standard Pin-out and Package

- 8-pin 150mil SOIC

- 8-pin TSSOP

- Lead-free (Pb-free) package

GENERAL DESCRIPTION

The IS25LD256C are 256Kbit Serial Peripheral Interface (SPI) Flash memories, providing single- or dual-output.

The devices are designed to support a 33 MHz clock rate in normal read mode, and 100 MHz in fast read, the

fastest in the industry. The devices use a single low voltage power supply, wide operating voltage ranging from

2.7 Volt to 3.6 Volt, to perform read, erase and program operations. The devices can be programmed in

standard EPROM programmers.

The IS25LD256C are accessed through a 4-wire SPI Interface consisting of Serial Data Input/Output (SlO),

Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins. They comply with all recognized

command codes and operations. The dual-output fast read operation provides and effective serial data rate of

200MHz.

The devices support page program mode, where 1 to 256 bytes data can be programmed into the memory in

one program operation. These devices are divided into uniform 4 KByte sectors or uniform 32 KByte blocks.

The IS25LD256C are manufactured on pFLASH™’s advanced non-volatile technology. The devices are offered

in 8-pin SOIC 150mil, and 8-pin TSSOP. The devices operate at wide temperatures between -40°C to +105°C.

Integrated Silicon Solution, Inc.- www.issi.com

1

Rev. A

09/11/2012

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