Professional IC Distribution & Technical Solutions

The PROMOS V54C3256164VDI6 is a synchronous dynamic random-access memory (SDRAM) chip manufactured by PROMOS. Below are its key specifications, descriptions, and features:

Specifications:

• Memory Type: Synchronous DRAM (SDRAM)
• Density: 256 Mbit (32M x 64-bit)
• Organization: 4 Banks x 8M words x 64 bits
• Voltage Supply: 3.3V (±0.3V)
• Speed Grade: VDI6 (typically 166 MHz clock frequency)
• Package: 54-pin TSOP-II (Thin Small Outline Package)
• Access Time: 5.4 ns (CL=3)
• Refresh Mode: Auto-refresh & Self-refresh
• Burst Length: 1, 2, 4, 8, or full page
• CAS Latency (CL): 2, 3 (programmable)
• Operating Temperature: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)

Descriptions:

• The V54C3256164VDI6 is a high-speed CMOS SDRAM designed for applications requiring high-density, high-bandwidth memory.
• It supports burst read and write operations for efficient data transfer.
• Features 4 internal banks for concurrent operations, reducing access conflicts.
• Includes auto-precharge and power-down modes for improved power efficiency.

Features:

• Synchronous Operation: Clock-controlled command, address, and data interfaces.
• Programmable Burst Length: Supports 1, 2, 4, 8, or full-page bursts.
• Auto Refresh (CBR): 8,192 cycles every 64 ms.
• Low Power Consumption: Standby and self-refresh modes reduce power usage.
• Single 3.3V Power Supply: Compatible with standard SDRAM interfaces.
• Industrial-Grade Options: Available for extended temperature ranges.

This SDRAM is commonly used in networking equipment, embedded systems, and high-performance computing applications.