Part IS25WD040
Description 2 Mbit / 4 Mbit Single Operating Voltage Serial Flash Memory
Manufacturer ISSI
Size 669.81 KB
ISSI
IS25WD040

Overview

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.

  • 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