Epson L-1000 Technical Manual page 181

APPENDIX
A.1.8 TTL
74LSO6 Hex. OC lnverters
The internal circuitry of the 74LSO6 hex. OC inverter is shown below.
7407 Hex. OC Buffers
The illustration below shows the internal circuitry of the 7407 hex. OC buffer.
A-16
Figure A-17. 74LSO6 Internal Circuit
Figure A-18. 7407 Internal Circuit
REV.-A
LQ-500/ L-1000