TLC545C, TLC545I, TLC546C, TLC546I

8-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL AND 19 INPUTS

SLAS066B – DECEMBER 1985 – REVISED OCTOBER 1996

2

POST OFFICE BOX 655303

AVAILABLE OPTIONS

PACKAGE

TA

CHIP CARRIER

(FN)

PLASTIC DIP

(N)

0

°C to 70°C

TLC545CFN

—

TLC545CN

—

–40

°C to 85°C

TLC545IFN

TLC546IFN

TLC545IN

TLC546IN

description (continued)

The TLC545C and the TLC546C are characterized for operation from 0

°C to 70°C. The TLC545I and the

TLC546I are characterized for operation from – 40

°C to 85°C.

functional block diagram

1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

17

18

19

20

SYSTEM

CLOCK

CS

I/O

CLOCK

ADDRESS

INPUT

8-Bit

Analog-to-Digital

Converter

(Switched-capacitors)

8

4

2

5

5

8

REF –

REF +

DATA

OUT

8-to-1 Data

Selector and

Driver

Control Logic

and I/O

Counters

Output

Data

Register

Input

Multiplexer

Self-Test

Reference

Input

Address

Register

Sample

and

Hold

20-Channel

Analog

Multiplexer

INPUTS

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

25

26

23

27

22

21

24