容量 256M
類型 Multi I/O SPI, QPI, DTR
電壓 2.3-3.6V
频率 80M/166Mhz
温規 -40 to 125°C
腳位/封裝 L = 8 pin WSON (8x6 mm)
狀態 Prod
產品系列 P = Single/Dual/Quad/QPI SPI
硅片版本 D
特殊選項 J = 標準
焊接 L = 無鉛(無鉛)和無鹵素(符合RoHS)
外包裝 卷轴包

IS25LP256D-JLLE-TR 特徵

  • Industry Standard Serial Interface
  • Low Power with Wide Temp. Ranges
  • - IS25LP256D: 256Mbit/32Mbyte - IS25WP256D: 256Mbit/32Mbyte - 3 or 4 Byte Addressing Mode - Supports Standard SPI, Fast, Dual, Dual I/O, Quad, Quad I/O, SPI DTR, Dual I/O DTR, Quad I/O DTR, and QPI - Software & Hardware Reset - Supports Serial Flash Discoverable Parameters (SFDP) - Single Voltage Supply IS25LP: 2.30V to 3.60V IS25WP: 1.65V to 1.95V - 7.5 mA Active Read Current - 10 µA Standby Current - 1 µA Deep Power Down - Temp Grades: Extended: -40°C to +105°C Extended+: -40°C to +125°C(Call Factory) Auto Grade: up to +125°C Note: Extended+ should not be used for Automotive.
  • High Performance Serial Flash (SPI)
  • - 80MHz Normal Read - Up to166Mhz Fast Read: -166MHz at Vcc=2.7V to 3.6V -133MHz at Vcc=2.3V to 3.6V - Up to 80MHz DTR (Dual Transfer Rate) - Equivalent Throughput of 664 Mb/s - 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 & Efficient Memory Architecture
  • - Chip Erase with Uniform Sector/Block Erase (4/32/64 Kbyte) - Program 1 to 256 Byte per Page - Program/Erase Suspend & Resume
  • Advanced Security Protection
  • - Software and Hardware Write Protection - Advanced Sector/Block Protection - Top/Bottom Block Protection - Power Supply Lock Protection - 4x256 Byte Dedicated Security Area with OTP User-lockable Bits - 128 bit Unique ID for Each Device (Call Factory)
  • Industry Standard Pin-out & Packages
  • - M =16-pin SOIC 300mil - L = 8-contact WSON 8x6mm - G = 24-ball TFBGA (4x6 ball array) - H = 24-ball TFBGA (5x5 ball array) - KGD (Call Factory) Note: Call Factory for other package options available

概觀

The IS25LP256D and IS25WP256D Serial Flash memory offers a versatile storage solution with high flexibility and performance in a simplified pin count package. ISSI’s “Industry Standard Serial Interface” Flash is for systems that require limited space, a low pin count, and low power consumption. The device 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 can also be configured to serve as multi-I/O (see pin descriptions). The device supports Dual and Quad I/O as well as standard, Dual Output, and Quad Output SPI. Clock frequencies of up to 166MHz allow for equivalent clock rates of up to 664MHz (166MHz x 4) which equates to 83Mbytes/s of data throughput. The IS25xP series of Flash adds support for DTR (Double Transfer Rate) commands that transfer addresses and read data on both edges of the clock. These transfer rates can outperform 16-bit Parallel Flash memories allowing for efficient memory access to support XIP (execute in place) operation. The memory array is organized into programmable pages of 256 bytes. This family supports page program mode where 1 to 256 bytes of data are programmed in a single command. QPI (Quad Peripheral Interface) supports 2- cycle instruction further reducing instruction times. Pages can be erased in groups of 4Kbyte sectors, 32Kbyte blocks, 64Kbyte blocks, and/or the entire chip. The uniform sector and block architecture allows for a high degree of flexibility so that the device can be utilized for a broad variety of applications requiring solid data retention. GLOSSARY Standard SPI In this operation, a 4-wire SPI Interface is utilized, consisting of Serial Data Input (SI), Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins. Instructions are sent via the SI pin to encode instructions, addresses, or input data to the device on the rising edge of SCK. The SO pin is used to read data or to check the status of the device. This device supports SPI bus operation modes (0,0) and (1,1). Mutil I/O SPI Multi-I/O operation utilizes an enhanced SPI protocol to allow the device to function with Dual Output, Dual Input and Output, Quad Output, and Quad Input and Output capability. Executing these instructions through SPI mode will achieve double or quadruple the transfer bandwidth for READ and PROGRAM operations. Quad I/O QPI The device enables QPI protocol by issuing an “Enter QPI mode (35h)” command. The QPI mode uses four IO pins for input and output to decrease SPI instruction overhead and increase output bandwidth. SI and SO pins become bidirectional IO0 and IO1, and WP# and HOLD# pins become IO2 and IO3 respectively during QPI mode. Issuing an “Exit QPI (F5h) command will cause the device to exit QPI mode. Power Reset or Hardware/Software Reset can also return the device into the standard SPI mode. DTR In addition to SPI and QPI features, the device also supports Fast READ DTR operation. Fast READ DTR operation allows high data throughput while running at lower clock frequencies. Fast READ DTR operation uses both rising and falling edges of the clock for address inputs, and data outputs, resulting in reducing input and output cycles by half. Programmable drive strength and Selectable burst setting. The device offers programmable output drive strength and selectable burst (wrap) length features to increase the efficiency and performance of READ operation. The driver strength and burst setting features are controlled by setting the Read Registers. A total of six different drive strengths and four different burst sizes (8/16/32/64 Byte) are available for selection.