容量 4M
電壓 1.65-1.95V
類型 Multi I/O Quad SPI
狀態 Prod
频率 33M/104Mhz
溫度範圍 -40 to 125°C
替代版本文件 IS25WD040

IS25WQ040-JWLE 特徵

  • Industry Standard Serial Interface
  • - IS25WQ040: 4M-bit/ 512K-byte - IS25WQ020: 2M-bit/ 256K-byte - 256-bytes per Programmable Page Standard - Standard SPI/Dual/Quad Multi-I/O SPI
  • High Performance Serial Flash (SPI)
  • - 33MHz SPI Normal Read - 104 MHz SPI/Dual/Quad Multi-I/O SPI - 416 MHz equivalent Quad SPI - 52MB/S Continuous Data Throughput - Supports SPI Modes 0 and 3 - More than 100,000 Erase/Program Cycles(1) - More than 20-year Data Retention
  • Efficient Read and Program modes
  • - Low Instruction Overhead Operations - Continuous data read - Allows XIP operations (execute in place) - Outperforms X16 Parallel Flash
  • Flexible & Cost Efficient Memory Architecture
  • - Uniform 4 Kbyte Sectors or 32/64 Kbyte Blocks - Flexible 4, 32, 64 K-bytes, or Chip Erase - Standard Page Program 1 to 256 bytes - Program/Erase Suspend and Resume GENERAL DESCRIPTION
  • Low Power with Wide Temp. Ranges
  • - Single 1.65V to 1.95V Voltage Supply - 8 mA Active Read Current (typ) - 15 µA Standby Current (typ.) - 2 µA Deep Power Down (typ.) - Temp Grades: Extended: -40°C to +105°C
  • Advanced Security Protection
  • - Software and Hardware Write Protection - 256-Byte dedicated security area, One Time Programmable (OTP) Memory - 128 bit Unique ID for each device (Call Factory)


The IS25WQ040/020 (4M/2Mbit) Serial Flash memory offers a storage solution with flexibility and performance in a simplified pin count package. ISSI’s “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.



IC 編號 庫存數量 可用數量 IC 編號 庫存數量 可用數量
IS25WQ040-JWLE-TR IS25WQ040-JNLE 1,000
IS25WQ040 IS25WQ040-JNLE-TR 6,000
IS25WQ040-JBLE 3,000 IS25WQ040-JULE 3,000
IS25WQ040-JBLE-TR IS25WQ040-JULE-TR 5,000
IS25WQ040-JKLE 2,500 IS25WQ040-JVLE 3,000