MAS7838 Datasheet, PDF (1/9 Pages) Micro Analog systems – SYNCHRONOUS TO ASYNCHRONOUS CONVERTER SAC CMOS

DA7838.002
20 September, 2000
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The MAS7838 is a single chip duplex synchronous to
asynchronous converter. It converts asynchronous start
stop characters to synchronous character format, with
stop bit deletion when required as defined in the CCITT
recommendation V.14 (V.22). On the receiver channel
the MAS7838 converts the incoming synchronous data
to asynchronous start stop character format with stop bit
insertion when required as defined in the CCITT
recommendation V.14 (V.22).The MAS7838 implements
the data modes for the synchronous interface as
specified in the V.14 (V.22). The device can be
configured to operate at any frequency to maximum
device speed within the above mentioned modes.
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• Implements CCITT recommendations V.14 and
V.22 chapters 4.1, 4.2 and 4.3
• Operates in modes as defined in the CCITT
recommendations V.22 (i), ii), iii), iv) and v)
• Transmission rate up to 64 kbit/s
• CMOS compatible interface
• Low power consumption (typically 25 mW)
• No additional circuitry required to perform the
conversion
• CMOS device
• Single =5V supply
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• Adapts asynchronous terminals to synchronous
modems
• Full or half card PC modems using UART as a
data source
• Simplifying data multiplexing in a MUX/DEMUX
system
CL1
CL2
XESR
TMG
OSC
TSL
TXC
TDO
RXC
RDI
XASY
XHST
VSS
CONTROL
O
S
C
ASYNC
TO
SYNC
SYNC
TO
ASYNC
_> ₁
VDD
TDI
RDO
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