rev. 7/7/03

SP508 Evaluation Board Manual

© Copyright 2003 Sipex Corporation

9

PIN

Symbol

Description

PIN

Symbol

Description

+5V Power Supply Input

51

TXC(b)

TXC Non-Inverting Input

2

GND

Signal Ground

52

GND

Signal Ground

3

SDEN

TxD Driver Enable input

53

TXC(a)

TXC Inverting Input

4

TTEN

TXCE Driver Enable Input

54

CS(b)

CTS Non-Inverting Input

5

STEN

ST Driver Enable Input

55

CS(a)

CTS Inverting Input

6

RSEN

RTS Driver Enable Input

56

DM(b)

DSR Non-Inverting Input

7

TREN

DTR Driver Enable Input

57

DM(a)

DSR Inverting Input

8

RRCEN

DCDDCE Driver Enable Input

58

V10GND

V.10 Rx Reference Node

9

RLEN

RL Driver Enable Input

59

RRT(b)

DCDDTE Non-Inverting Input

10

LLEN*

LL Driver Enable Input

60

RRT(a)

DCDDTE Inverting Input

11

RDEN*

RxD Receiver Enable Input

61

IC(a)

RI Receiver Input

12

RTEN*

RxT Receiver Enable Input

62

TM(a)

TM Receiver Input

13

TxCEN*

TxC Receiver Enable Input

63

LL(a)

LL Driver Output

14

CSEN*

CTS Receiver Enable Input

64

+5V Power Supply Input’

15

DMEN*

DSR Receiver Enable Input

65

RL(a)

RL Driver Output

16

RRTEN*

DCDDTE Receiver Enable Input

66

Vss

17

ICEN*

RI Receiver Enable Input

67

C2-

Charge pump Capacitor

18

TMEN

TM Receiver Enable Input

68

GND

Signal Ground

19

D0

Mode Select Input

69

C1-

Charge pump Capacitor

20

D1

Mode Select Input

70

C2+

Charge pump Capacitor

21

D2

Mode Select Input

71

+5V Power Supply Input

22

TERM_OFF

Termination Disable Input

72

C1+

Charge pump Capacitor

23

D_LATCH*

Decoder Latch Input

73

Vdd

2xVxx Charge Pump Output

24

N/C

No Connection

74

GND

Signal Ground

25

GND

Signal Ground

75

TR(a)

DTR Inverting Output

26

+5V Power Supply Input

76

N/C

No Connection

27

LOOPBACK* Loopback Mode Enable Input

77

+5V Power Supply Input

28

TXD

TXD Driver TTL Input

78

TR(b)

DTR Non-Inverting Output

29

TxCE

TXCE Driver TTL Input

79

RRC(b)

DCDDCE Non-Inverting Output

30

ST

ST Driver TTL Input

80

+5V Power Supply Input

31

DTR

RTS Driver TTL Input

81

RRC(a)

DCDDCE Inverting Output

32

RTS

DTR Driver TTL Input

82

GND

Signal Ground

33

DCD_DCE

DCDDCE Driver TTL Input

83

RS(a)

RTS Inverting Output

34

RL

RL Driver TTL Input

84

+5V Power Supply Input

35

LL

LL Driver TTL Input

85

RS(b)

RTS Non-Inverting Output

36

RXD

RXD Receiver TTL Output

86

GND

Signal Ground

37

RXC

RXC Receiver TTL Output

87

ST(a)

ST Inverting Output

38

TXC

TXC Receiver TL Output

88

+5V Power Supply Input

39

CTS

CTS Receiver TTL Output

89

V35TGND3

ST Termination Reference

40

DSR

DSR Receiver TTL Output

90

ST(b)

ST Non-Inverting Output

41

DCD_DTE

DCDDTE Receiver TTL Output

91

GND

Signal Ground

42

RI

RI Receiver TTL Output

92

TT(a)

TXCE Inverting Output

43

TM

TM Receiver TTL Output

93

+5V Power Supply Input

44

GND

Signal Ground

94

V35TGND2

TXCE Termination Reference

45

+5V Power Supply Input

95

TT(b)

TXCE Non-Inverting Output

46

V35RGND

Receiver Termination Reference

96

GND

Signal Ground

47

RD(b)

RXD Non-inverting Input

97

SD(a)

TXD Inverting Output

48

RD(a)

RXD Inverting Input

98

+5V Power Supply Input

49

RT(b)

RXT Non-Inverting Input

99

V35TGND1

TXD Termination Reference

50

RT(a)

RXT Inverting Input

100

SD(b)

TXD Non-Inverting Output

Note:N/C Pins should be left floating as internal signals may be present.

SP508 PIN ASSIGNMENTS