76489: Difference between revisions

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'''Digital Complex Sound Generator'''
'''Digital Complex Sound Generator'''
{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;
|+ Texas Instruments SN76489 Product Family Summary
|-
! Chip Variant
! Freq (max)
! Audio In
|-
| TMS9919 / SN94624
| 500 kHz
| No
|-
| SN76489 / SN76489A
| 4 MHz
| No
|-
| SN76494 / SN76494A
| 500 kHz
| Yes
|-
| SN76496 / SN76496A
| 4 MHz
| Yes
|}


=Pinout=
=Pinout=

Revision as of 14:04, 29 December 2019

Digital Complex Sound Generator

Texas Instruments SN76489 Product Family Summary
Chip Variant Freq (max) Audio In
TMS9919 / SN94624 500 kHz No
SN76489 / SN76489A 4 MHz No
SN76494 / SN76494A 500 kHz Yes
SN76496 / SN76496A 4 MHz Yes


Pinout

DIP16
         +---\/---+
      D2 | 1    16| Vcc
      D1 | 2    15| D3
      D0 | 3    14| CLOCK
   READY | 4    13| D4
     *WE | 5    12| D5
     *OE | 6    11| D6
AUD. OUT | 7    10| D7
     GND | 8     9| N.C.
         +--------+

Frequency

DIP16
Set reader to FREQ, put black probe to GND, red probe to 14 to measure CPU clock

External links

SN76489 page on Wikipedia

Files