PIC16F871 Datasheet

  • PIC16F871

  • 28/40-Pin, 8-Bit CMOS FLASH Microcontrollers

  • 1755.40KB

  • 172页

  • Microchip   Microchip

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PIC16F870/871
TABLE 9-3:
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 0)
F
OSC
= 20 MHz
%
ERROR
-
1.75
0.17
1.73
1.72
8.51
3.34
8.51
-
-
F
OSC
= 4 MHz
SPBRG
value
(decimal)
-
255
129
31
15
9
8
4
255
0
F
OSC
= 16 MHz
%
ERROR
-
0.17
0.17
0.16
0.16
3.55
6.29
8.51
-
-
SPBRG
value
(decimal)
-
207
103
25
12
8
6
3
255
0
F
OSC
= 10 MHz
%
ERROR
-
0.17
0.17
1.73
1.72
8.51
6.99
9.58
-
-
SPBRG
value
(decimal)
-
129
64
15
7
4
4
2
255
0
KBAUD
-
1.221
2.404
9.766
19.531
31.250
34.722
62.500
1.221
312.500
KBAUD
-
1.202
2.404
9.615
19.231
27.778
35.714
62.500
0.977
250.000
KBAUD
-
1.202
2.404
9.766
19.531
31.250
31.250
52.083
0.610
156.250
F
OSC
= 3.6864 MHz
%
ERROR
0.33
1.33
1.33
2.90
2.90
-
-
2.90
-
-
SPBRG
value
(decimal)
185
46
22
5
2
-
-
0
255
0
BAUD
RATE
(K)
KBAUD
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
-
0.300
1.202
2.404
8.929
20.833
31.250
-
62.500
0.244
62.500
%
ERROR
0
0.17
0.17
6.99
8.51
8.51
-
8.51
-
-
SPBRG
value
(decimal)
207
51
25
6
2
1
-
0
255
0
KBAUD
0.301
1.216
2.432
9.322
18.643
-
-
55.930
0.218
55.930
TABLE 9-4:
BAUD
RATE
(K)
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
BAUD
RATE
(K)
KBAUD
0.3
1.2
2.4
9.6
19.2
28.8
33.6
57.6
HIGH
LOW
-
1.202
2.404
9.615
19.231
27.798
35.714
62.500
0.977
250.000
BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1)
F
OSC
= 20 MHz
%
ERROR
-
-
-
0.16
0.16
0.94
0.55
3.34
-
-
F
OSC
= 4 MHz
%
ERROR
-
0.17
0.17
0.16
0.16
3.55
6.29
8.51
-
-
SPBRG
value
(decimal)
-
207
103
25
12
8
6
3
255
0
SPBRG
value
(decimal)
-
-
-
129
64
42
36
20
255
0
F
OSC
= 16 MHz
%
ERROR
-
-
-
0.16
0.16
2.13
0.79
2.13
-
SPBRG
value
(decimal)
-
-
-
103
51
33
29
16
255
0
F
OSC
= 10 MHz
%
ERROR
-
-
1.71
0.16
1.72
1.36
2.10
1.36
-
-
SPBRG
value
(decimal)
-
-
255
64
31
21
18
10
255
0
KBAUD
-
-
-
9.615
19.231
29.070
33.784
59.524
4.883
1250.000
KBAUD
-
-
-
9.615
19.231
29.412
33.333
58.824
3.906
1000.000
KBAUD
-
-
2.441
9.615
19.531
28.409
32.895
56.818
2.441
625.000
F
OSC
= 3.6864 MHz
%
ERROR
-
0.25
0.25
1.32
2.90
2.90
4.88
2.90
-
-
SPBRG
value
(decimal)
-
185
92
22
11
7
6
3
255
0
KBAUD
-
1.203
2.406
9.727
18.643
27.965
31.960
55.930
0.874
273.722
DS30569A-page 66
Preliminary
1999 Microchip Technology Inc.

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