15

PS8641

10/14/04

PI90SD1636A

SERDES Gigabit Ethernet Transceiver

Pericom

Vitesse

Agilent

Pin #

PI90SD1636A

VSC7123

HDMP1636A/

46A

Comments

34

RX<9>

R9

RX[9]

Received Parallel Data Output

35

RX<8>

R8

RX[8]

36

RX<7>

R7

RX[7]

38

RX<6>

R6

RX[6]

39

RX<5>

R5

RX[5]

40

RX<4>

R4

RX[4]

41

RX<3>

R3

RX[3]

43

RX<2>

R2

RX[2]

44

RX<1>

R1

RX[1]

45

RX<0>

R0

RX[0]

37

VDD_RXT

VDDT

VCC_RXTTL

Connect to 3.3V

42

VDD_RXT

VDDT

VCC_RXTTL

Connect to 3.3V

46

GND_RXT

VSST

GND_RXTTL

Connect to the ground plane

47

COM_DET

COMDET

BYTSYNC

Comma Detect ( Byte Sync)

48

NC

TDI

RXCAP0

Pericom requires no external caps. External capaci-

tor will not affect performance

49

NC

TCK

RXCAP1

Pericom requires no external caps. External capaci-

tor will not affect performance

50

VDD_RXF

VDDD

VCC_RXA

Connect to 3.3V

51

GND_RXF

VSSD

GND_RXA

Connect to the ground plane

52

DIN-

RX-

-DIN

High-speed serial data input

53

VDD_RXESD

N/C

VCC

(Note 2)

Connect to 3.3V

54

DIN+

RX+

+DIN

High-speed serial data input

55

VDD_RXESD

TMS

VCC

Connect to 3.3V

56

GND_RXESD

TRSTN

GND

Connect to the ground plane

57

VDD_RXA

VDDD

VCC

Connect to 3.3V

58

GND_RXA

VSSD

GND

Connect to the ground plane

59

VDD_RXA

VDDD

VCC

Connect to 3.3V

60

VDD_TX_ECL

VDDP

VCC_TXECL

Connect to 3.3V

61

DOUT-

TX-

-DOUT

High-speed serial data output

62

DOUT+

TX+

+DOUT

High-speed serial data output

63

VDD_TX_HS

VDDP

VCC_TXHS

Connect to 3.3V

64

GND_TX_HS

VSSD

GND_TXHS

Connect to the ground plane

Notes:

1. For VSC7123, this pin is in high-impedance state in normal operation.

2. For VSC7123, this pin has no internal connection.