इसी प्रकार केMD82C55A/B

• MD82C54-10/B
  • CMOS programmable interval timer, 10MHz
• MD82C54-12/B
  • CMOS programmable interval timer, 12MHz
• MD82C54/B
  • CMOS programmable interval timer, 8MHz
• MD82C55A-5/B
  • CMOS programmable peripheral interface, fully TTL compatible, 5MHz
• MD82C55A/B
  • CMOS programmable peripheral interface, fully TTL compatible, 8MHz
• MD82C59A-12/B
  • CMOS priority interrupt controller, 12.5MHz
• MD82C59A-5/B
  • CMOS priority interrupt controller, 5MHz
• MD82C59A/B
  • CMOS priority interrupt controller, 8MHz