U6812B 查看數據表（PDF） - Atmel Corporation

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U6812B

Single-ended Bus Transceiver with Triple Buffer

Atmel Corporation 

Pin Configuration

Figure 2. Pinning SO16

GND 1

OUT 2 2

IN 2

3

DIS

4

VCC 5

IN 3 6

OUT 3 7

GND 8

U6812B

16 GND

15 K

14 TXD

13 RXD

12 VS

11 IN 1

10 OUT 1

9 GND

Pin Description

Pin

Symbol

1

GND

2

OUT 2

3

IN 2

4

DIS

5

VCC

6

IN 3

7

OUT 3

8

GND

9

GND

10

OUT 1

11

IN 1

12

VS

13

RXD

14

TXD

15

K

16

GND

Type

Supply

Open-collector output

Digital input

Digital input

Supply

Digital input

Open-collector output

Supply

Supply

Open-collector output

Digital input

Supply/reference

Digital output

Digital input

12-V input and O.C. output

Supply

Function

Ground; all ground pins are directly connected to the lead frame

Protected output of driver 2 (faced to: outside)

Input of protected driver 2 (faced to: µP)

Disable input for OUT 2 and OUT 3, “H”=enable, “L”=disable

+5-V supply

Input of protected driver 3 (faced to: µP)

Protected output of driver 3 (faced to: outside)

Ground

Ground

Protected output of driver 1 (faced to: outside)

Input of protected driver 1 (faced to: µP)

+12-V reference for K-line level

Diagnosis receive line (faced to: µP)

Diagnosis transmit line (faced to: µP)

Bi-directional diagnosis line (faced to: outside)

Ground

2 U6812B

4760A–AUTO–10/03

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