UPD8253

PROGRAMMABLE INTERVAL TIMER

NEC

UPD8253 PDF File

• UPD8237A High Performance Programmable DMA Controller - NEC
• UPD8243 Input / Output Expander - NEC Electronics
• UPD8243H Input / Output Expander - NEC Electronics
• UPD8251 PROGRAMMABLE COMMUNICATIONS INTERFACE - NEC
• UPD8251A PROGRAMMABLE COMMUNICATIONS INTERFACE - NEC
• UPD8251AF PROGRAMMABLE COMMUNICATIONS INTERFACE - NEC
• UPD8253 PROGRAMMABLE INTERVAL TIMER - NEC
• UPD8253-5 PROGRAMMABLE INTERVAL TIMER - NEC
• UPD8255 PROGRAMMABLE PERIPHERAL INTERFACES - NEC
• UPD8255A Programmable Peripheral Interface - NEC