SP502 datasheet(7/30 Pages) SIPEX

7 / 30 page

Rev. 7/21/03

SP502 Multi-Mode Serial Transceiver

PINOUT…

RxD 1

RDEC0 2

RDEC1 3

RDEC2 4

RDEC3 5

ST/TT 6

GND 7

VCC 8

TDEC3 9

TDEC2 10

TDEC1 11

TDEC0 12

DTR 13

TxD 14

TxC 15

RTS 16

RL 17

NC 18

DCD 19

RxC 20

60 GND

59 SD(b)

58 TR(a)

57 GND

56 TR(b)

55 VCC

54 RS(a)

53 GND

52 RS(b)

51 LL(a)

50 GND

49 LL(b)

48 VCC

47 RL(a)

46 GND

45 RL(b)

44 ST(b)

43 GND

42 ST(a)

41 VCC

SP502

Note: NC (No Connection) pins should be left floating.

Internal signals may be present.

PIN ASSIGNMENTS…

CLOCK AND DATA GROUP

Pin 1 — RxD — Receive Data; TTL output,

sourced from RD(a) and RD(b) inputs.

Pin 14 — TxD — TTL input ; transmit data

source for SD(a) and SD(b) outputs.

Pin 15 — TxC — Transmit Clock; common

TTL input for both ST and TT driver outputs.

Pin 20 — RxC — Receive Clock; TTL output

sourced from RT(a) and RT(b) inputs.

Pin 37 — RT(a) — Receive Timing; analog

input, inverted; source for RxC.

Pin 38 — RT(b) — Receive Timing; analog

input, non-inverted; source for RxC.

Pin 42 — ST(a) — Send Timing; analog output,

inverted; sourced from ST.

Pin 44 — ST(b) — Send Timing; analog output,

non-inverted; sourced from ST.

Pin 59 — SD(b) — Analog Out — Send data,

non-inverted; sourced from TxD.

Pin 61 — SD(a) — Analog Out — Send data,

inverted; sourced from TxD.

Pin 63 — TT(a) — Analog In or Out —

Terminal Timing, inverted; sourced to TxC or

RxT.

Pin 65 — TT(b) — Analog In or Out —

Terminal Timing, non–inverted; sourced to TxC

or RxT.

Pin 70 — RD(a) — Receive Data, analog input;

inverted; source for RxD.

Pin 71 — RD(b) — Receive Data; analog input;

non-inverted; source for RxD.

CONTROL LINE GROUP

Pin 13 — DTR — Data Terminal Ready; TTL

input; source for TR(a) and TR(b) outputs.

Pin 16 — RTS — Ready To Send; TTL input;

source for RS(a) and RS(b) outputs.

Pin 17 — RL — Remote Loopback; TTL input;

source for RL(a) and RL(b) outputs.

Pin 19 — DCD— Data Carrier Detect; TTL

output; sourced from RR(a) and RR(b) inputs.

Pin 21 — RI — Ring In; TTL output; sourced

from IC(a) and IC(b) inputs.

Pin 24 — LL — Local Loopback; TTL input;

source for LL(a) and LL(b) outputs.

Pin 35 — RR(a)— Receiver Ready; analog

input, inverted; source for DCD.

Pin 36 — RR(b)— Receiver Ready; analog

input, non-inverted; source for DCD.

Pin 39 — IC(a)— Incoming Call; analog input,

inverted; source for RI.

Pin 40 — IC(b)— Incoming Call; analog input,

non-inverted; source for RI.

Pin 45 — RL(b) — Remote Loopback; analog

output, non-inverted; sourced from RL.

Pin 47 — RL(a) — Remote Loopback; analog

output inverted; sourced from RL.

Pin 49— LL(b) — Local Loopback; analog

output, non-inverted; sourced from LL.

Pin 51 — LL(a) — Local Loopback; analog

output, inverted; sourced from LL.

Pin 52 — RS(b) — Ready To Send; analog

output, non-inverted; sourced from RTS.

Pin 54 — RS(a) — Ready To Send; analog

output, inverted; sourced from RTS.

Pin 56 — TR(b) — Terminal Ready; analog

output, non-inverted; sourced from DTR.

Pin 58 — TR(a) — Terminal Ready; analog

output, inverted; sourced from DTR.

Pin 66 — CS(a)— Clear To Send; analog input,

inverted; source for CTS.

Pin 67 — CS(b)— Clear To Send; analog input,

non-inverted; source for CTS.

Pin 68 — DM(a)— Data Mode; analog input,

inverted; source for DSR.

Pin 69 — DM(b)— Data Mode; analog input,

non-inverted; source for DSR.

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