19
FN2958.6
August 19, 2015
82C50A
BAUD GENERATOR
(29) N Baud Divisor 1 2
16
-1
(30) TBLD Baud Output Negative Edge Delay - 250 ns
(31) TBHD Baud Output Positive Edge Delay - 250 ns
(32) TLW Baud Output Down Time 40 - ns T
XL
= 50ns
(33) THW Baud Output Up Time 40 - ns T
XH
= 50ns
RECEIVER
(34) TSCD Delay from RCLK to Sample Time - 250 ns
(35) TSlNT Delay from Stop to Set Interrupt 1 1 BAUDOUT
Cycles
(36) TRlNT Delay from DISTR DISTR
(RD RBR) to
Reset Interrupt
- 250 ns
TRANSMITTER
(37) THR Delay from DOSTR DOSTR
to Reset Interrupt - 250 ns
(38) TlRS Delay from Initial INTR Reset to Transmit Start 8 24 BAUDOUT
Cycles
(39) TS1 Delay from Initial Write to Interrupt 16 32 BAUDOUT
Cycles
(40) TSTl Delay from Stop to Interrupt (THRE) 8 24 BAUDOUT
Cycles
(41) TIR Delay from DISTR DISTR
(RD lIR) to Reset Interrupt
(THRE)
- 250 ns
MODEM CONTROL
(42) TMDO Delay from DOSTR DOSTR
to Output - 500 ns
(43) TSIM Delay to Set Interrupt from Modem Input - 500 ns
(44) TRIM Delay to Reset Interrupt from DISTR DlSTR
(RD MSR)
- 500 ns
AC Electrical Specifications V
CC
= 5.0V ±10%, T
A
= 0
o
C to +70
o
C (CX82C50A-5) T
A
= -40
o
C to +85
o
C (lX82C50A-5)
Timing (Continued)
SYMBOL PARAMETER
82C50A-5
UNITS TEST CONDITIONSMIN MAX
