SP504

更新时间： 2024-11-28 06:13:07

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
32页	1186K
描述
WAN Multi-Mode Serial Transceiver

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数据手册

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SP504 数据手册

SP504

WAN Multi-Mode Serial Transceiver

• +5V Only

• Seven (7) Drivers and Seven (7) Receivers

• Driver and Receiver Tri-State Control

• Reduced V.35 Termination Network

• Pin Compatible with the SP503

• Software Selectable Interface Modes:

-RS-232E (V.28)

RxD

RDEC₀

RDEC₁

RDEC₂

RDEC₃

TTEN

60 GND

59 SD(b)

58 TR(a)

57 GND

56 TR(b)

55 V_CC

SCTEN

N/C

54 RS(a)

53 GND

52 RS(b)

51 LL(a)

50 GND

49 LL(b)

48 V_CC

TDEC₃

-RS-422A (V.ꢀꢀ, X.2ꢀ)

-RS-449 (V.ꢀꢀ & V.ꢀ0)

TDEC₂10

TDEC₁11

TDEC₀12

DTR 13

SP504

-RS-485

-V.35

-EIA-530 (V.ꢀꢀ & V.ꢀ0)

-EIA-530A (V.ꢀꢀ & V.ꢀ0)

-V.36

TxD 14

47 RL(a)

46 GND

45 RL(b)

44 ST(b)

43 GND

42 ST(a)

41 V_CC

TxC 15

RTS 16

RL 17

V35_STAT 18

DCD 19

RxC 20

DESCRIPTION

The SP504 is a single chip device that supports eight (8) physical serial interface standards

for Wide Area Network connectivity. The SP504 is fabricated using a low power BiCMOS

process technology, and incorporates an Exar patented (5,306,954) charge pump allowing

+5V only operation. Seven (7) drivers and seven (7) receivers can be conﬁgured via soft-

ware for any of the above interface modes at any time. The SP504 is suitable for DTE-DCE

applications. The SP504 requires only one external resistor per V.35 driver for compliant

V.35 Operation.

Vcc

22µF, 16V

C1+

SWITCHABLE V.35

TERMINATION RESISTOR

NETWORKS

Vdd

Vss

22µF, 16V

C1-

C2+

22µF, 16V

Programmable Charge Pump

C2-

RxD

TxD

RxC

CTS

DSR

DCD

RxC

CTS

DTR

RTS

DTR

RTS

SP504

DSR

DCD

SCT

Receiver Decode

Driver Decode

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 5ꢀ0-668-70ꢀ7 • www.exar.com

SP504_ꢀ02_ꢀ2ꢀ708

ꢀ

12 3 4 5 6 7...32

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