GENERAL DESCRIPTION
The IS25WD020/040 are 2 Mbit / 4Mbit Serial Peripheral Interface (SPI) Flash memories, providing single- or dual-output. The devices are designed to support a 30 MHz fclock rate in normal read mode, and 80 MHz in fast read, the fastest in the industry. The devices use a single low voltage power supply, wide operating voltage ranging from 1.65 Volt to 1.95 Volt, to perform read, erase and program operations. The devices can be programmed in standard EPROM programmers.

FEATURES
• Single Power Supply Operation
   - Low voltage range: 1.65 V – 1.95 V
• Memory Organization
   - IS25WD020: 256K x 8 (2 Mbit)
   - IS25WD040: 512K x 8 (4 Mbit)
• Cost Effective Sector/Block Architecture
   - 2Mb : Uniform 4KByte sectors / Four uniform
      64KByte blocks
   - 4Mb : Uniform 4KByte sectors / Eight uniform
      64KByte blocks
• Serial Peripheral Interface (SPI) Compatible
   - Supports single- or dual-output
   - Supports SPI Modes 0 and 3
   - Maximum 30 MHz clock rate for normal read
   - Maximum 80 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
   - Typical 1.7 ms sector, block or chip erase
• Low Power Consumption
   - Typical 2 mA active read current
   - Typical 6 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 readonly
• 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 SOIC 208mil
   - 8-pin SOIC 150mil
   - 8-pin VVSOP 150mil
   - 8-pin WSON
   - KGD (Call Factory)
   - Lead-free (Pb-free) package
   - Automotive Temperature Ranges Available