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SP507_100_081208

SP507 Multi–Mode Serial Transceiver

© Copyright 2008 Exar Corporation

■ Interface Modes Supported:

■ Software Selectable Protocols

■ Highest Differential Transmission Rates

■ +5V Only Operation

■ Seven (7) Drivers and Seven (7) Receivers

■ Driver and Receiver Tri-state Control

■ Internal Transceiver Termination Resistors for

V.11 and V.35 Protocols

■ Improved ESD Tolerance for Analog I/Os

■ Compliant to NET1/2 and TBR2 Physical Layer

Requirements

■ Used in WAN Serial Ports in Routers Switches,

DSU/CSU's and other Access Devices

■ Available in 80-Lead LQFP

DESCRIPTION

The SP507 is a monolithic IC that supports seven (7) popular serial interface standards for

DTE/DCE connectivity. The seven (7) drivers and seven (7) receivers transmit and receive

signals at over 20Mbps. The SP507 requires no additional external components for compliant

operation for all seven (7) modes of operation. All necessary termination is integrated within

the SP507 and is switchable when V.35 drivers, V.35 receivers, and V.11 receivers are used.

The SP507 can operate as either a DTE or DCE.

Additional features include a latch enable pin with the driver and receiver address decoder.

Tri-state ability for the driver and receiver outputs is controlled by supplying a 3-bit word into

the address decoder. Four (4) drivers and four (4) receivers in the SP507 include separate

enable pins for added convenience.

EIA-530

WAN

V.35

SP507

5V Single Chip WAN Multi-Mode Serial Transceiver

RxD

1

RTEN 2

RREN 3

TMEN 4

LLEN

5

TTEN

6

SCTEN 7

LATCH

8

TERM_OFF

9

M2 10

M1 11

M0 12

DTR 13

TxD 14

TxCE 15

RTS 16

RL 17

RLEN 18

DCD 19

RxC 20

60 GND

59 SD(b)

58 TR(a)

57 GND

56 TR(b)

55

54 RS(a)

53 GND

52 RS(b)

51 LL(a)

50 GND

49 LL(b)

47 RL(a)

46 GND

45 RL(b)

44 ST(b)

43 GND

42 ST(a)

SP507