DS21554 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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Компоненты Описание

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DS21554

DS21354 (3.3V) and DS21554 (5V) E1 Single Chip Transceivers (SCT)

Dallas Semiconductor -> Maxim Integrated 

DS21354 & DS21554

PIN

SYMBOL

TYPE DESCRIPTION

4

JTCLK

I

IEEE 1149.1 Test Clock Signal

7

JTDI

I

IEEE 1149.1 Test Data Input

10

JTDO

O

IEEE 1149.1 Test Data Output

2

JTMS

I

IEEE 1149.1 Test Mode Select

5

JTRST*

I

IEEE 1149.1 Test Reset

12

LIUC

I

Line Interface Connect

21

MCLK

I

Master Clock Input

55

MUX

I

Bus Operation

8

NC

–

No Connect (do not connect any signal to this pin)

9

NC

–

No Connect (do not connect any signal to this pin)

15

NC

–

No Connect (do not connect any signal to this pin)

23

NC

–

No Connect (do not connect any signal to this pin)

26

NC

–

No Connect (do not connect any signal to this pin)

27

NC

–

No Connect (do not connect any signal to this pin)

28

NC

–

No Connect (do not connect any signal to this pin)

1

RCHBLK

O

Receive Channel Block

92

RCHCLK

O

Receive Channel Clock

6

RCL

O

Receive Carrier Loss

82

RCLK

O

Receive Clock

88

RCLKI

I

Receive Clock Input

89

RCLKO

O

Receive Clock Output

74

RD*(DS*)

I

Read Input(Data Strobe)

85

RDATA

O

Receive Data

97

RFSYNC

O

Receive Frame Sync

79

RLCLK

O

Receive Link Clock

78

RLINK

O

Receive Link Data

99

RLOS/LOTC

O

Receive Loss Of Sync/ Loss Of Transmit Clock

96

RMSYNC

O

Receive Multiframe Sync

87

RNEGI

I

Receive Negative Data Input

90

RNEGO

O

Receive Negative Data Output

86

RPOSI

I

Receive Positive Data Input

91

RPOSO

O

Receive Positive Data Output

17

RRING

I

Receive Analog Ring Input

95

RSER

O

Receive Serial Data

94

RSIG

O

Receive Signaling Output

93

RSIGF

O

Receive Signaling Freeze Output

98

RSYNC

I/O Receive Sync

100

RSYSCLK

I

Receive System Clock

16

RTIP

I

Receive Analog Tip Input

18

RVDD

–

Receive Analog Positive Supply

19

RVSS

–

Receive Analog Signal Ground

20

RVSS

–

Receive Analog Signal Ground

24

RVSS

–

Receive Analog Signal Ground

33

TCHBLK

O

Transmit Channel Block

53

TCHCLK

O

Transmit Channel Clock

46

TCLK

I

Transmit Clock

14 of 117

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