TMC2005 Ver la hoja de datos (PDF) - SMSC -> Microchip
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Lista de partido
TMC2005 Datasheet PDF : 32 Pages
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QFP PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
NAME
TXENB1
NC1
SE
NC2
LE
EXTRX
ME
VSS1
EXTTX
VDD1
CKO
VSS2
CKM2
CKM1
CKM0
RXFLT
nPLLTST
VDD2
XTLI
XTLO
VSS4
VDD4
VDD3
AVDD
RO
LP
AGS
AVSS
VSS3
VSS5
nEXTOD
nMBE
nMBB
nMBA
nBJE
nBJB
nBJA
VSS6
nRST
nCKOEN
VDD5
nP1BAK
nPULSE2
nPULSE1
VSS7
RXINA0
DESCRIPTION OF PIN FUNCTIONS
INPUT/
OUTPUT
DESCRIPTION
OUTPUT Port B-1 TX output to media transceiver
Reserved. It should be open
INPUT
Port EXT. Polar assignment for EXTRX input
(0:active HI 1:active LO)
Reserved. It should be open
INPUT
Port EXT. Polar assignment for EXTRX input
(0:active LO 1:active HI)
INPUT
Port EXT. RX-Data input from media transceiver
INPUT
Port EXT. Output mode assignment of EXTTX
(0:pulse output 1:TX enable output)
Ground
OUTPUT Port EXT. Output to media transceiver
Power Supply
OUTPUT Clock Output
Ground
INPUT
Network Speed (data rate) setting
INPUT
Network Speed (data rate) setting
INPUT
Network Speed (data rate) setting
INPUT
Test Pin. It should be open
INPUT
Test Pin for PLL. Must always connect to VDD
Power Supply
INPUT
X’tal input/External clock input
OUTPUT X’tal output
Ground
Power Supply
Power Supply
Analog Power Supply
OUTPUT VCO output for internal PLL
OUTPUT Connection pin to loop filter for internal PLL
INPUT
Analog sense pin for internal PLL
Analog Ground
Ground
Ground
INPUT
Port EXT. Open-drain mode (0:open-drain
output 1:normal output)
INPUT
Port EXT. Noise cut (0:on 1:off)
INPUT
Port EXT. A0/A1 Noise cut (0:on 1:off)
INPUT
Port B0/B1 Noise cut (0:on 1:off)
INPUT
Port EXT. Jitter correct mode (0: big jitter mode
1:normal mode)
INPUT
Port A0/A1 Jitter correct mode (0: big jitter mode
1:normal mode)
INPUT
Port B0/B1 Jitter correct mode (0:big jitter mode
1:normal mode)
Ground
INPUT
Internal reset signal (active low)
INPUT
Enable of CKO output
Power Supply
OUTPUT nPULSE1 output (for backplane mode)
OUTPUT nPULSE2 output (for normal mode)
OUTPUT nPULSE1 output (for normal mode)
Ground
INPUT
Port A-0 RX-data input from media transceiver
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
SMSC DS – TMC2005
Page 6
Rev. 10/24/2000
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