Memotech Limited MTX 500, Service Manual

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13
Z80 DART
The Z-80 DART (Dual-Channel Asynchronous
Receiver/Transmitter) is a dual-channel multi-function
peripheral component that satisfies a wide variety of
asynchronous serial data communications requirements in
micro-computer systems. The Z-80 DART is used as a
serial-to-parallel, parallel-to-serial converter /
controller in asynchronous applications. In addition,
the device also provides modem controls for both
channels. In applications where modem controls are not
needed, these lines can be used for general-purpose
I/O.
Zilog also offers the Z-80 SIO, a more versatile device
that provides synchronous (Bisync, HDLC and SDLC) as
well as asynchronous operation.
The Z-80 DART is fabricated with n-channel silicon-gate
depletion-load technology, and is packaged in a 40-pin
plastic or ceramic DIP.
MTX Service Manual