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IS82C237-12 from INTERSIL

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7.813ms

IS82C237-12

Manufacturer: INTERSIL

CMOS High Performance Programmable DMA Controller

Partnumber Manufacturer Quantity Availability
IS82C237-12,IS82C23712 INTERSIL 61 In Stock

Description and Introduction

CMOS High Performance Programmable DMA Controller The **IS82C237-12** is a high-performance CMOS **DMA Controller (DMAC)** manufactured by **Intersil**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Intersil  
- **Part Number:** IS82C237-12  
- **Technology:** CMOS  
- **Speed Grade:** -12 (12 MHz operation)  
- **Supply Voltage:** 5V ±10%  
- **Operating Temperature Range:** 0°C to 70°C (Commercial)  
- **Package Type:** 40-pin DIP (Dual In-line Package)  

### **Descriptions:**
- The IS82C237-12 is a **programmable DMA controller** designed for high-speed data transfer between memory and I/O devices.  
- It is a **standalone, four-channel** DMAC compatible with the **Intel 8237A** but with enhanced CMOS performance.  
- Supports **cascading mode** for expanding DMA channels.  
- Optimized for use in **microprocessor-based systems** (e.g., 8086, 8088, 80286).  

### **Features:**
- **Four Independent DMA Channels** (expandable to more via cascading).  
- **Memory-to-Memory Transfer Capability** (Channel 0 ↔ Channel 1).  
- **Auto-Initialization Mode** for repeated block transfers.  
- **Programmable Priority Modes** (Fixed or Rotating).  
- **High-Speed Operation** (12 MHz clock frequency).  
- **Low Power Consumption** (CMOS technology).  
- **Software Compatibility** with Intel 8237A.  
- **Mask Control for Individual Channels**.  
- **End-of-Process (EOP) Signal** for transfer termination.  

This device is commonly used in **PC/AT-compatible systems, embedded controllers, and industrial applications** requiring efficient DMA operations.  

*(Note: Always refer to the official datasheet for detailed electrical characteristics and application notes.)*

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