XR16C872 Datasheet, PDF (51/60 Pages) Exar Corporation – DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER

DISCONTINUED
XR16C872
AEN
A0-A15
IOW#
D0-D7
T3AS
Valid Address
T9WR
Active
T10DS
Valid Data
T4AH
T6DY
T11DH
ISA Bus Write Timing
XR872WR
IOW#
RTS#
DTR#
Outputs
CD#
CTS#
DSR#
Inputs
INT
IOR#
RI#
Rev. 1.00
Active
Change of state
T12D
Change of state
Change of state
T13D
Active
Active
Change of state
T13D
T14
D
Active
Active
Modem input/output timing
Active
Active
T13D
Change of state
XR872MD
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