The HD74HC259FPEL is an 8-bit addressable latch manufactured by Hitachi. This device belongs to the High-speed CMOS (HC) family, offering a combination of high speed and low power consumption. It allows for individual control of eight latches using a 3-bit address, making it suitable for a variety of memory and control applications.

Applications

• Addressable memory
• Control registers
• Data storage in microcomputer systems
• Remote control systems
• Industrial automation

Features

• 8-bit addressable latch
• Individual latch control
• 3-bit address input
• High-speed CMOS technology
• Low power consumption

Benefits

• Provides flexible data storage and retrieval
• Simplifies addressing and control logic
• Reduces component count
• Improves system performance
• Conserves power

Additional Details

The HD74HC259FPEL operates from a single 2V to 6V power supply. It is typically available in a 16-pin SOP (Small Outline Package). The device has eight data outputs (Q0-Q7), a 3-bit address input (A0-A2), a data input (D), and an enable input (E). The outputs are controlled by the address inputs. When the enable input (E) is low, the selected latch (determined by the address inputs A0-A2) is updated with the value present at the data input (D). When the enable input (E) is high, the latches retain their previous values. The address inputs select one of the eight latches according to a binary code: A2 A1 A0. The HC technology ensures high noise immunity and fast propagation delays. It is crucial to adhere to the recommended operating conditions and timing specifications outlined in the datasheet to ensure proper and reliable operation. The 'FPEL' suffix often indicates a specific packaging and lead finish variant.