TL16C552AFNR Datasheet, PDF (34/38 Pages) Texas Instruments – DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT

TL16C552A, TL16C552AM
DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH FIFO
SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999
PRINCIPLES OF OPERATION
programmable baud rate generator (continued)
BAUD RATE
DESIRED
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
19200
38400
56000
128000
256000
512000
Table 16. Baud Rates Using an 8-MHz Clock
DIVISOR (N) USED TO
GENERATE 16x CLOCK
10000
6667
4545
3717
3333
1667
833
417
277
250
208
139
104
69
52
26
13
9
4
2
1
PERCENT ERROR DIFFERENCE
BETWEEN DESIRED AND ACTUAL
–
0.005
0.010
0.013
0.010
0.020
0.040
0.080
0.080
–
0.160
0.080
0.160
0.644
0.160
0.160
0.160
0.790
2.344
2.344
2.400
BAUD RATE
DESIRED
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
19200
38400
56000
128000
256000
512000
1000000
Table 17. Baud Rates Using a 16-MHz Clock
DIVISOR (N) USED TO
GENERATE 16x CLOCK
20000
13334
9090
7434
6666
3334
1666
834
554
500
416
278
208
138
104
52
26
18
8
4
2
1
PERCENT ERROR DIFFERENCE
BETWEEN DESIRED AND ACTUAL
0.00
0.00
0.01
0.01
0.01
– 0.02
0.04
– 0.08
0.28
0.00
0.16
– 0.08
0.16
0.64
0.16
0.16
0.16
– 0.79
– 2.34
– 2.34
– 2.34
0.00
34
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