IS25WQ040-JNLE-TR

The IS25WQ040 (4Mbit) Serial Flash memory offers a storage solution with flexibility and performance in a simplified pin count package. “Industry Standard Serial Interface” is for systems that have limited space, pins, and power. The IS25WQ040/020 is accessed through a 4-wire SPI Interface consisting of a Serial Data Input (SI), Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins, which also serve as multi-function I/O pins in Dual and Quad modes (see pin descriptions). The IS25xQ series of Flash is ideal for code shadowing to RAM, execute in place (XIP) operations, and storing non-volatile data. The memory array is organized into programmable pages of 256-bytes each. The IS25WQ040/020 supports page program mode where 1 to 256 bytes of data can be programmed into the memory with one command. Pages can be erased in groups of 4K-byte sectors, 32K-byte blocks, 64K-byte blocks, and/or the entire chip. The uniform sectors and blocks allow greater flexibility for a variety of applications requiring solid data retention. The device supports the standard Serial Peripheral Interface (SPI), Dual/Quad output (SPI), and Dual/Quad I/O (SPI). Clock frequencies of up to 104MHz for all read modes allow for equivalent clock rates of up to 416MHz (104MHz x 4) allowing up to 52MBytes/S of throughput. These transfer rates can outperform 16-bit Parallel Flash memories allowing for efficient memory access for a XIP (execute in place) operation. The IS25WQ040/020 is manufactured using industry leading non-volatile memory technology and offered in industry standard lead-free packages. See Ordering Information for the density and package combinations available.

• Industry Standard Serial Interface
  • IS25WP040: 4Mbit/512Kbyte
• IS25WP020: 2Mbit/256Kbyte
  • 256 bytes per Programmable Page
  • Supports standard SPI, Fast, Dual, Dual I/O, Quad, Quad I/O, SPI DTR, Dual I/O DTR, Quad I/O DTR, and QPI
  • Supports Serial Flash Discoverable Parameters (SFDP)
• High Performance Serial Flash (SPI)
  • 50MHz Normal and 133Mhz Fast Read
  • 532 MHz equivalent QPI
  • DTR (Dual Transfer Rate) up to 66MHz
  • Selectable Dummy Cycles
  • Configurable Drive Strength
  • Supports SPI Modes 0 and 3
  • More than 100,000 Erase/Program cycles
  • More than 20-year Data Retention
• Flexible and Efficient Memory Architecture
  • Chip Erase with Uniform: Sector/block Erase (4/32/64 Kbyte)
  • Program 1 to 256 Bytes per Page
  • Program/Erase Suspend and Resume
• Efficient Read and Program modes
  • Low Instruction Overhead Operations