4N33 Opto-Coupler
for Digital I/O
6N136 High Speed
Transistor Opt-Coupler for connection Card/PC
PCF8574 Remote 8-bit
expander for I˛C-bus
PCF8591 8-bit A/D
- D/A Converter for DA1 and AD1-AD4
TDA8444 6-bit
DAC's with I˛C-bus for DAC1-DAC8
74LS125 4 Tri-State-Buffers
ICL7106
Diplay A/D Converter
For the Digital V-meter the
following datasheets can be useful
MM74C92x
555 timer
BC547 NPN
Transistor
741 OP-AMP
74HC/HCT194 (4bit Bi-directionnal Shift Register) is available on PDF.
Rs232 RS-232C (all in
PDF format)
and Cellphone Cables [ ICL232 ] [ MAXIM ]
[ DS211
]