PAL16R4A-2

series introduction

# PAL16R4A - 2 Product Series Introduction

## 1. Overview
The PAL16R4A - 2 belongs to the Programmable Array Logic (PAL) family of integrated circuits. PAL devices are a type of programmable logic device (PLD) that offer a cost - effective and flexible solution for implementing digital logic functions. The PAL16R4A - 2 is specifically designed to meet the requirements of various digital circuit applications, providing a balance between performance, functionality, and ease of use.

## 2. Key Features

### 2.1 Programmability
- **Logic Function Customization**: The PAL16R4A - 2 allows users to program specific logic functions according to their application needs. This programmability is achieved through a fuse - based programming technology. By selectively blowing fuses within the device, different logic connections can be established, enabling the implementation of a wide range of combinational and sequential logic functions.
- **Quick Prototyping**: It is an ideal choice for rapid prototyping of digital circuits. Designers can quickly program the device to test different logic designs without the need for complex and time - consuming custom integrated circuit fabrication processes.

### 2.2 Logic Structure
- **16 Inputs and 4 Registered Outputs**: The device has a total of 16 input pins, which can be used to receive various digital signals. The 4 registered outputs are flip - flop based, which means they can store the output values and update them synchronously with a clock signal. This makes the PAL16R4A - 2 suitable for applications that require sequential logic operations, such as state machines and counters.
- **Combinational Logic Capability**: In addition to sequential logic, the PAL16R4A - 2 can also implement combinational logic functions. Combinational logic circuits generate outputs based solely on the current input values, without any memory elements. This dual - functionality allows for the implementation of complex digital systems that combine both combinational and sequential logic.

### 2.3 Speed and Performance
- **- 2 Speed Grade**: The “- 2” in the PAL16R4A - 2 designation indicates its speed grade. This device is optimized for relatively high - speed operation, with a fast propagation delay. The low propagation delay ensures that the output signals change quickly in response to input signal changes, making it suitable for applications where high - speed data processing is required, such as in communication systems and high - performance digital controllers.

### 2.4 Power Consumption
- **Low Power Design**: The PAL16R4A - 2 is designed with low - power consumption in mind. This is beneficial for battery - powered devices or applications where power efficiency is a critical factor. The low power consumption helps to extend the battery life of portable devices and reduces the overall power requirements of the system.

## 3. Package and Pinout

### 3.1 Package Types
The PAL16R4A - 2 is available in various package types, such as the DIP (Dual In - Line Package) and PLCC (Plastic Leaded Chip Carrier). The DIP package is a popular choice for prototyping and breadboarding due to its ease of handling and compatibility with standard breadboards. The PLCC package, on the other hand, is more suitable for surface - mount technology (SMT) applications, offering a smaller footprint and better mechanical stability.

### 3.2 Pinout Configuration
The pinout of the PAL16R4A - 2 is carefully designed to provide easy access to its inputs, outputs, power, and control pins. The input pins are used to connect external digital signals, while the output pins provide the results of the programmed logic functions. The power pins (VCC and GND) are used to

Datasheets

• PDF 1
• PDF 2

Partlist