8M x 32 256Mb SYNCHRONOUS DRAM The IS42S32800D-7BL is a SDRAM (Synchronous Dynamic Random Access Memory) module manufactured by ISSI (Integrated Silicon Solution Inc.). Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Type:** Synchronous DRAM (SDRAM)
- **Density:** 128Mb (4M x 32-bit)
- **Organization:** 4 banks, 4,096 rows, 256 columns
- **Voltage:** 3.3V ± 0.3V
- **Speed:** 7ns (143MHz)
- **Package:** 86-ball BGA (Ball Grid Array)
- **Refresh:** 4,096 refresh cycles / 64ms
- **Operating Temperature:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
### **Descriptions:**
- The IS42S32800D-7BL is a high-speed CMOS SDRAM designed for applications requiring high bandwidth and low power consumption.
- It supports fully synchronous operation with a single 3.3V power supply.
- Features programmable burst lengths (1, 2, 4, 8, or full page) and CAS latencies (2 or 3).
- Auto refresh and self-refresh modes are supported for power-saving applications.
### **Features:**
- **High Performance:** 143MHz clock frequency with 7ns access time.
- **Low Power Consumption:** Standby and power-down modes reduce energy usage.
- **Burst Operation:** Supports sequential and interleaved burst modes.
- **Auto Precharge:** Configurable for efficient memory management.
- **Industrial-Grade Option:** Available for extended temperature range (-40°C to +85°C).
- **RoHS Compliant:** Meets environmental standards.
This information is sourced from ISSI's official datasheets and product documentation.
