||501, 502, 503, 504.
|Source of Data:
||Data for these devices was derived from reverse engineering of a
Sony SOBAX 2500
||Measurements suggest DTL/TTL with open-collector outputs. Given the low supply voltage though, this is not standard DTL/TTL. Although the outputs appear to be open-collector, there are no pull-up resistors used with these ICs.
|Supply Voltage:||+4 V.
||Gate symbols are presented in accordance with
- TRUE = high impedance or +4V
- FALSE = low impedance to ground or 0V
||Sony 14-pin DIP. Similar to standard DIP but the distance between the two rows is slightly greater than the standard (...one can only wonder).