SP502 datasheet(19/32 Pages) SIPEX

Il numero della parte	SP502

Spiegazioni elettronici	Multi-Mode Serial Transceiver

PDF	32 Pages

Scroll/Zoom	100%

Produttore elettronici	SIPEX [Sipex Corporation]

Homepage	http://www.sipex.com

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19 / 32 page

Rev. 7/21/03

SP502 Multi-Mode Serial Transceiver

Figure 12. Mode Diagram — EIA-530

RD(a) 70

RxD 1

RD(b) 71

MODE: EIA-530

DRIVER

RECEIVER

TDEC3 TDEC2 TDEC1 TDEC0 RDEC3 RDEC2 RDEC1 RDEC0

RT(a) 37

RxC 20

RT(b) 38

CS(a) 66

CTS 80

CS(b) 67

DM(a) 68

DSR 78

DM (b) 69

RR(a) 35

DCD 19

RR(b) 36

IC(a) 39

RI 21

ST/TT

RxT*

Enabled

Disabled

Active

Disabled

Enabled

Inactive

* TT driver must be disabled to allow TT(a) and TT(b)

to serve as receiver inputs.

* When the RxT receiver is active, TT(a) and TT(b) act

as receiver inputs. When the RxT receiver is inactive,

it cannot serve as a receiver since its inputs are internally

connected to the TT(a) and TT(b) driver outputs.

14 TxD

61 SD(a)

59 SD(b)

15 TxC

42 ST(a)

44 ST(b)

ST/TT

63 TT(a)

65 TT(b)

13 DTR

58 TR(a)

56 TR(b)

16 RTS

54 RS(a)

52 RS(b)

17 RL

47 RL(a)

24 LL

51 LL(a)

RxT 79

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