1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

REF –

GND

R/ W

CLK

RS

CS

REF + (A1)

A0

A2

A3

A4

A5

A10/D1

A11/D2

A12/D3

A13/D4

A14/D5

A15/D6

R

Analog

Inputs

Analog/

Digital

Inputs

I/O

Data

Bus

32 1 28 27

12 13

5

6

7

8

9

10

11

25

24

23

22

21

20

19

A2

A3

A4

A5

A10/D1

A11/D2

A12/D3

R/ W

426

14 15 16 17 18

FN PACKAGE

(TOP VIEW)

N PACKAGE

(TOP VIEW)

ADDRESS/CONTROL

DISCRIPTION

X

L

L

L

H

FUNCTION TABLE

CS

R CLK

L†

H

H

H

H

↓

↑

↑

X

Reset

Write bus data to control register

Read data from analog conversion register

Read data from digital register

No response

X

L

H

H

X

R/W

X

H

L

H

X

RS

H=High-level, L = Low-level, X = Irrelevant

↓=High-to-low transition, ↑ = Low-to-high transition

† For proper operation, RESET must be low for at least three lock cycles.

TLC532AI, TLC532AM, TLC533AI, TLC533AM

LinCMOS

™ 8-BIT ANALOG-TO-DIGITAL PERIPHERALS

WITH 5 ANALOG AND 6 DUAL-PURPOSE INPUTS

SLAS070 – D2819, NOVEMBER 1983 – REVISED SEPTEMBER 1986

POST OFFICE BOX 655303

Copyright

1

TLC532A ...15

µs Max

TLC533A ...30

µs Max

and TL531 (21-Input Versions)

Instruments TL532 and TL533, National

Semiconductor ADC0829, and Motorola

MC14442

description

The TLC532A and TLC533A are monolithic

LinCMOS

™ peripheral integrated circuits each

designed to interface a microprocessor for analog

data acquisition. These devices are complete

peripheral data acquisition systems on a single

chip and can convert analog signals to digital data

from up to 11 external analog terminals. Each

device operates from a single 5-V supply and

contains a 12-channel analog multiplexer, and

8-bit ratiometric analog-to-digital (A/D) converter,

a sample-and-hold circuit, three 16-bit registers,

and microprocessor-compatible control circuitry.

Additional features include a built-in self-test,

sixmultipurpose (analog or digital) inputs, five

external analog inputs, and an 8-pin input/output

(I/O) data port. The three on-chip data registers

store the control data, the conversion results, and

the input digital data that can be accessed via the

microprocessor

data

bus

in

two

bytes

LinCMOS is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.