IS82C54 Similar

• IS82C54
  • CMOS programmable interval timer, 8MHz
• IS82C54-10
  • CMOS programmable interval timer, 10MHz
• IS82C54-12
  • CMOS programmable interval timer, 12MHz
• IS82C55A
  • CMOS programmable peripheral interface, fully TTL compatible, 8MHz
• IS82C59A-12
  • CMOS priority interrupt controller, 12.5MHz
• IS82C59A-5
  • CMOS priority interrupt controller, 5MHz