XR16C2850IJ-F Datasheet, PDF (41/51 Pages) Exar Corporation – 2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS

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REV. 2.1.3
XR16C2850
2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS
AC ELECTRICAL CHARACTERISTICS
TA=0^O TO 70^OC (-40^O TO +85^OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.90V TO 5.5V, 70 PF LOAD
WHERE APPLICABLE
SYMBOL
PARAMETER
TRST Reset Pulse Width
LIMITS
3.3
MIN
MAX
LIMITS
5.0
MIN
MAX
UNIT
40
40
ns
CONDITIONS
N Baud Rate Divisor
1
2¹⁶-1
1
2¹⁶-1
-
Bclk Baud Clock
16X or 8X of data rate
Hz
FIGURE 16. CLOCK TIMING
EXTERNAL
CLOCK
CLK
CLK
OSC
FIGURE 17. MODEM INPUT/OUTPUT TIMING FOR CHANNELS A & B
IOW #
RTS#
DTR#
Active
Change of state
T _{W DO}
Change of state
CD#
CTS#
DSR#
INT
IOR#
RI#
T_MOD
Change of state
Change of state
Active
Active
T_MOD
T_RSI
Active
Active
Active
Active
T_MOD
Change of state
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