W956D6KBKX7I
Overview
The W956D6KBKX7I is a 64Mbit Pseudo SRAM (PSRAM) that combines the density of DRAM with the simple interface of SRAM. Operating at 1.8V with a 133 MHz clock frequency, it utilizes a 16-bit multiplexed address and data bus to minimize pin count in space-constrained designs. This memory is specifically engineered for low-power portable applications requiring high-density volatile storage.
Why Choose This Part
The component features On-chip Temperature Compensated Refresh (TCR) and Partial Array Refresh (PAR) to optimize power consumption based on operating conditions. It offers a high-speed 133 MHz burst mode for fast data access while maintaining a tiny 49-ball WFBGA footprint. The Deep Power-Down (DPD) mode further reduces current draw during extended idle periods, extending battery life in mobile systems.
Applications
Key Specifications
Getting Started
To integrate this PSRAM, ensure your microcontroller or FPGA supports an ADMux (Address-Data Multiplexed) parallel interface. Use a high-quality 1.8V regulator as the device operates within a tight 1.7V to 1.95V range. Designers should pay close attention to the 0.5mm ball pitch during PCB layout and implement proper decoupling near the VDD pins to support 133 MHz switching speeds.
