DS1222中文资料开关阵列芯片数据手册ADI规格书

描述 Description

The DS1222 BankSwitch Chip provides the circuitry for selecting among 16 memory banks under software control, thereby increasing system memory capacity without additional address lines. It can also be used to expand the address range of microprocessors and decoders. Continuous blocks of memory are enabled by a pattern recognition sequence on four address inputs. By combining the DS1222 with the DS1212 Nonvolatile Controller x16 Chip, up to 16 banks of static RAMs can be selected.

特性 Features

• Circuitry selects among 16 banks of memory enabling one at a time
• Automatically sets all 16 banks off on power-up
• Low-power CMOS circuitry
• Thermal operating range: 0°C to +70°C
• Voltage/tolerance: 5V ±10%

简介

DS1222属于集成电路（IC）的控制器。由ADI制造生产的DS1222控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。