Professional IC Distribution & Technical Solutions

SAB8259A-P Manufacturer: SIEMENS

#### Specifications:

• Manufacturer: SIEMENS
• Part Number: SAB8259A-P
• Type: Programmable Interrupt Controller (PIC)
• Architecture: 8-bit/16-bit compatible
• Interrupt Channels: 8
• Cascading Support: Yes (up to 64 interrupts via cascading)
• Operating Voltage: 5V
• Package Type: Plastic DIP (Dual In-line Package)
• Pin Count: 28
• Operating Temperature Range: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C) depending on variant

#### Descriptions:

The SAB8259A-P is a programmable interrupt controller (PIC) designed by SIEMENS for managing interrupt requests in microprocessor-based systems. It is compatible with both 8-bit and 16-bit microprocessors, providing flexible interrupt handling with priority management. The device supports cascading, allowing multiple PICs to be linked for expanded interrupt capabilities.

#### Features:

• 8 Independent Interrupt Inputs (IR0-IR7)
• Programmable Priority Modes (Fixed or Rotating)
• Maskable Interrupts (individual IRQ masking)
• Edge-Triggered or Level-Triggered Interrupt Modes
• Fully Nested Interrupt Structure
• Automatic End-of-Interrupt (EOI) Mode
• Cascading Support for up to 64 Interrupts
• 5V Single Power Supply
• 28-Pin DIP Package

This IC was commonly used in early computing systems, industrial controllers, and embedded applications requiring efficient interrupt management.