TMC2005 Ver la hoja de datos (PDF) - SMSC -> Microchip
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TMC2005 Datasheet PDF : 32 Pages
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Example 7: An eight port HUB with two TMC2005s, two HYC2485Ss, two HYC9088s, two SN75176s, and two
optical transceivers links four different physical layers; AC-485, dipulse, RS485, and fiber optics.
1
H Y C 2 4 8 5 SVVCr eCf
2
3
nRXIN 4
PH_B 5
PH_A
GND
6
7
nTXEN 8
nPULSE1
1
H Y C 2 4 8 5 SVVCr eCf
nRXIN
2
3
4
PH_B 5
PH_A 6
GND
nTXEN
7
8
nPULSE1
RX 7
HYC9088S-SK
18
nPULSE2
DISABLE
19
20
nPULSE1
RX 7
HYC9088S-SK
18
nPULSE2
DISABLE
19
20
nPULSE1
R1
SN75176a 2
nRE
DE 3
4
D
1
R
SN75176naRE 2
3
DE
D4
1
OUT
GND1
2
3
VCC1 4
TODX270AGND2 5
GND3
LEDR
6
7
VCC2 8
IN
+5V
46
47
48
RXINA0
SA
49 TXENA0
50 LA
51
52
RXINA1
MA
53 TXENA1
54 VDD6
55
56
VSS8
RXINB0
57 SB
58 TXENB0
59
60
LB
RXINB1
MB
TMC2005
30
VSS5
VSS3
29
28
AVSS 27
A G S 26
LP
RO
25
24
AVDD 23
VDD3 22
VDD4
VSS4
21
20
XTLO 19
XTLI 18
VDD2
nPLLTST
17
16
RXFLT
46
47 RXINA0
48
49
SA
TXENA0
50 LA
51 RXINA1
52
53
MA
TXENA1
54 VDD6
55 VSS8
56
57
RXINB0
SB
58 TXENB0
59 LB
60
RXINB1
MB
TMC2005
30
VSS5 29
VSS3
AVSS
28
27
A G S 26
LP 25
RO
AVDD
24
23
VDD3 22
VDD4 21
VSS4
XTLO
20
19
XTLI 18
VDD2 17
nPLLTST
RXFLT
16
1
OUT 2
GND1 3
VCC1
T O D X 2 7 0 AG N D 2
4
5
GND3 6
LEDR 7
VCC2
IN
8
FIGURE 7 - APPLICATION EXAMPLE 7
Only the TMC2005 and eight transceivers are indicated in the above figure. Connect the other pins adequately.
SMSC DS – TMC2005
Page 19
Rev. 10/24/2000
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