.
UM3561 - THREE SIREN SOUND GENERATOR
UM6502 - (UM6502 - UM6512) 8-bit Microprocessor
UM91214 - Tone / Pulse Dialer
UM6507 - 8-bit Microprocessor
UM8397 - SINGLE-CHIP FLOPPY DISK CONTROLLER
UM91270 - 20 MEMORY TONE/PULSE DIALER
UM91531 - PARALLEL INPUT TONE/PULSE DIALER
UM9559F - (UM9559E/F) TONE DIALER
UM3750A - Programmable Encoder/Decoder
UM8250B - Asynchronous Communication Element
UM3750 - Programmable Encoder/Decoder
UM3561H - THREE SIREN SOUND GENERATOR
UM6551 - Asynchronous Communication Interface Adapter
UM92870 - INTEGRATED DTMF RECEIVER
UM3561A - CARACTERISTICAS
UM91260 - (UM91260 / UM91266) 10 MEMORY TONE /PULSE DIALER
UM3758 - TRi-STATE ProgrammaBle Encoder/Decoder
UM91531 - PARALLEL INPUT TONE.PULSE DIALER
UM93510 - SPEECH RECORDING AND REPRODUCTION IC
UM487 - HCGA CONTROLLER
