SGS Z8430BB1 Z80 CTC Four-Channel Counter/Timer DIP28P OMA037V

£3.50

600 in stock

SKU: OMA037V Category:

Description

  • Manufacturer:  SGS
  • Package:   DIP28
  • Product Family:  Z80 Microprocessor
  • The SGS Z8430 is fully compatible to each Z8430 in DIP28 of other manufactures eg. ZILOG Z08430
DESCRIPTION
The Z80 CTC four-channel counter/timer can be programmed by system software for a broad range of counting and timing applications. The four independently programmable channels of the Z80 CTC satisfy common microcomputer system requirements for event counting, interrupt and interval timing, and general clock rate generation. System design is simplified because the CTC connects directly to both the Z80 CPU and the Z80 SIO with no additional logic. In larger systems, address decoders and buffers may be required. Programming the CTC is straightforward : each channel is programmed with two bytes ; a third is necessary when interrupts are enabled. Once started, the CTC counts down, reloads its time constant automatically, and resumes counting. Software timing loops are completely eliminated. Interrupt processing is simplified because only one vector need be specified; the CTC internally generates a unique vector for each channel. The Z80 CTC requires a single + 5V power supply and the standard Z80 single-phase system clock. It is fabricated with n-channel silicon-gate depletionload technology, and packaged in a 2a-pin plastic or ceramic DIP. 
  • FOUR INDEPENDENTLY PROGRAMMABLE COUNTERITIMER CHANNELS, EACH WITH A READABLE DOWNCOUNTER AND A SELECTABLE 16 OR 256 PRESCALER. DOWNCOUNTERS ARE RELOADED AUTOMATICALLY AT ZERO COUNT 
  • THREE CHANNELS HAVE ZERO COUNTITIMEOUT OUTPUTS CAPABLE OF DRIVING DARLINGTON TRANSISTORS 
  • SELECTABLE POSITIVE OR NEGATIVE TRIGGER INITIATES TIMER OPERATION 
  • STANDARD Z80 FAMILY DAISY-CHAIN INTERRUPT STRUCTURE PROVIDES FULLY VECTORED, PRIORITIZED INTERRUPTS WITHOUT EXTERNAL LOGIC. THE CTC MAY ALSO BE USED AS AN INTERRUPT CONTROLLER 
  • INTERFACE DIRECTLY TO THE Z80 CPU OR FOR BAUD RATE GENERATION – TO THE Z80
  • Z8430BB1
Z8430BB1
Z8430BB1
Z8430BB1
Now obsolete for datasheet – copy and paste:-
https://pdf1.alldatasheet.com/datasheet-pdf/view/83292/ZILOG/Z8430.html

 

These genuine S.T. part‘s came to us as part of a lot of surplus stock from a large ‘Milspec’ type Co, date coded 28605 they have been in storage for some time we have therefore classified them as new other, stored with us still in their original boxes and anti static tubes we guarantee them to be as new and fully working, you will receive the quantity ordered properly protected in a cut down length of anti static tube.

SURPLUS STOCK!!!

We are always interested in purchasing electronic components.

If you have items surplus to requirements please contact us with details.

Additional information

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