1 |
× |
Cermetek CH1810 DCPH
Direct Connect Protective Hybrid. This was the phone line interface.
|
1 |
× |
Teltone M956
DTMF Tone Decoder
|
1 |
× |
SN76489
Digital Complex Sound Generator
|
1 |
× |
Zilog Z8671
Single Chip BASIC Interpreter (Z8 processor variant)
|
2 |
× |
HM6116
Memory ICs / Static RAM (SRAM)2Kx8 Static RAM
|
1 |
× |
2732 EPROM
|
1 |
× |
5213 EEPROM
EEPROM - holds passcode
|
1 |
× |
PAL10L8
Semiconductors and Integrated Circuits / Misc. Semiconductors and Integrated Circuits
|
1 |
× |
74S288 32x8 PROM
|
2 |
× |
74LS373
Electronic Components / Misc. Electronic Components
|
1 |
× |
74LS244
Electronic Components / Misc. Electronic Components
|
1 |
× |
74S225
16x5 FIFO
|
1 |
× |
74LS374
Electronic Components / Misc. Electronic Components
|
1 |
× |
74LS138
Electronic Components / Misc. Electronic Components
|
1 |
× |
74LS240
Electronic Components / Misc. Electronic Components
|
1 |
× |
74LS245
Electronic Components / Misc. Electronic Components
|
1 |
× |
MC1488
Interface and IO ICs / Line Drivers, Receivers, Transceivers
|
1 |
× |
MC1489
Interface and IO ICs / RS-232, RS-422, RS-423 and RS-485
|
1 |
× |
7.3728 MHz Crystal
|
1 |
× |
3.58 MHz Crystal
|
8 |
× |
12V Relays
(Not shown in schematic - implemented on separate board)
|
1 |
× |
ULN2803
Relay Driver (not shown in schematic - implemented on separate board)
|