QL_PC0084A_keyboard_adapter
alvaroalea
A Unknow Keyboard Adapter for the Sinclair QL Computer
Components (16)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | BC184L | NPN transistor, emitter/collector/base |
| U1 | SOCKET 40 PIN | i8748, MCS-48 8-bit Microcontroller with Internal EPROM, 2KB EPROM, 128B RAM, DIP-40 |
| U2 | D8749HC | i8748, MCS-48 8-bit Microcontroller with Internal EPROM, 2KB EPROM, 128B RAM, DIP-40 |
| U3 | 2764 | EPROM 64 KiBit, [Obsolete 2000-11] |
| U6 | 74LS148 | Priority Encoder 3 to 8 cascadable |
| U7,U8 | 74LS14 | Hex inverter schmitt trigger |
| C1,C3-C5 | 100n | Unpolarized capacitor |
| C2 | 15p | Unpolarized capacitor |
| J1,J2 | Turned Pins 1x20 | Generic connector, single row, 01x20, script generated |
| J3 | Male Horz. 6pin | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | Fem. 6P | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | DIN-5 Female | 5-pin DIN connector (5-pin DIN-5 stereo) |
| R1,R2 | 470 | Resistor |
| R3,R5,R6 | 4K7 | Resistor |
| R4,R7 | 3K3 | Resistor |
| Y1 | 6 Mhz | Two pin crystal |