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LICAL-TRC-MT

MT Series Transcoder Module Data Guide

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Pin Assignments

1 VCC LICAL-TRC-MT GND 20

2 D6

D5 19

3 D7

D4 18

4 CRT/LRN

D3 17

5 ENC_SEL

LATCH 16

6 SER_IO

SEL_BAUD 15

7 CONFIRM

MODE_IND 14

8 TR_PDN

D2 13

9 TR_SEL

D1 12

10 TR_DATA

D0 11

Figure 7: MT Series Transcoder Pin Assignments

Pin Descriptions

Pin Descriptions

Pin Number Name

I/O Description

1

2, 3, 11–13,

17–19

VCC

D0–D7

Positive Power Supply

I/O Status Control Lines

4

CRT/LRN

I Create / Learn Mode Activation Line

5

ECN_SEL

I Encoder Only Select Line

6

SER_IO

I/O Serial Interface Line

7

CONFIRM

O Transmission Confirmation Line

8

TR_PDN

O Transceiver Power Control Line

9

TR_SEL

O Transceiver Mode Control Line

10

TR_DATA

I/O Transceiver Data Line

14

MODE_IND O Mode Indicator Output

15

SEL_BAUD

I

Baud Rate Selection Line

16

LATCH

I Set Latched Outputs

20

GND

Ground

None of the input lines have internal pull-up or pull-down resistors. The input lines must

always be in a known state (either GND or VCC) at all times or the operation may not be

predictable. The designer must ensure that the input lines are never floating, either by using

external resistors, by tying the lines directly to GND or VCC, or by use of other circuits to

control the line state.

Figure 8: Pin Descriptions

–5–

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