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UPD69 Fiches technique(PDF) 24 Page - Renesas Technology Corp

No de pièce UPD69
Description  MOS INTEGRATED CIRCUIT
PDF  73 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD69 Fiches technique(HTML) 24 Page - Renesas Technology Corp

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22
µPD67, 67A, 68, 68A, 69
Data Sheet U14935EJ2V1DS
By setting the flag (t9) that enables the timer output to 1, the timer can output its operation status from the S1/
LED pin and the REM pin. The REM pin can also output the carrier while the timer is in operation.
Table 4-1. Timer Output (at t9 = 1)
S1/LED Pin
REM Pin
Timer operating
Low level
High level (or carrier outputNote)
Timer halting
High level
Low level
Note The carrier output results if bit 9 (CARY) of the high-level period setting modulo register (MOD1) is cleared
(to 0).
Figure 4-2. Timer Output (When Carrier Is Not Output)
(a)
µPD67, 68, and 69
(b)
µPD67A and 68A
Timer output time:
(Set value + 1)
× 64/fX
LED
REM
Timer output time:
(Set value + 1)
× 64/fX – 4/fX
LED
REM
4/fX



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