MC33690DWE Datasheet MC33690DWE, MC33690DWER2 | P1-P3

Freescale Semiconductor

Data Sheet: Product Preview

Document Number: SC33690DS

Rev. 5, 02/2007

This document contains information on a product under development. Freescale reserves the

right to change or discontinue this product without notice.

MC33690

SOIC-20

The standalone tag reader circuit (STARC) is an integrated

circuit dedicated to the automotive immobilizer applications.

It combines the antenna drivers and demodulator necessary to

interface with a transponder.

A low dropout voltage regulator and a physical interface fully

compatible with the ISO 9141 norm are also available.

The STARC is fabricated with the SMARTMOSTM3.5

technology. This process is a double layer metal 1.4µm

45V technology, combining CMOS and bipolar devices.

• Contactless 125 kHz tag reader module:

– Self synchronous sample and hold demodulator

– Amplitude or phase modulation detection

– High sensitivity

– Fast read after write demodulator settling time

– Low resistance and high current antenna drivers, 2W @

150mA (typ.)

– Bidirectionnal data transmission

– Multi-tag, multi-scheme operation

• Low dropout voltage regulator:

– Wide input supply voltage range from 5.5V up to 40V

– Output current capability up to 150mA DC with an

external power transistor

– 5V output voltage with a ±5% accuracy

– Low voltage reset function

– Low current consumption in standby mode:

– 300µA (typ.)

• ISO 9141 transmitter and receiver module:

– Input voltage thresholds ratiometric to the supply

voltage

– Current limitation

– Output slew rate control

– No external protection device required

MC33690 Standalone Tag

Reader Circuit

SOURCE

TD1

VDD

TD2

XTAL2

XTAL1

1110

VSS

VSUP

GATE

MODE1

MODE2

LVR

DOUT

AGND

CEXT

Pin Connections

ORDERING INFORMATION

Device

Operating

Junction

Temperature

Range

Package

MC33690DW

MC33690DWE

= −40°C to

125°C

TJ = −40°C to

125°C

SOIC 20

(ROHS)

MC33690 Standalone Tag Reader Circuit, Rev. 5

Freescale Semiconductor2

Table of Contents

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Tag Reader Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2 Read Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3 Write Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

4 Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

5 ISO 9141 Physical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . .8

6 Communication Modes Description . . . . . . . . . . . . . . . . . . . . .9

7 Standalone Configuration with One-Wire Bus . . . . . . . . . . . .10

7.1 Timing Definitions for a 8 MHz Crystal . . . . . . . . . . . . .11

8 Standalone Configuration with Two-Wire Bus. . . . . . . . . . . . .12

9 Direct Connection to a Microcontroller Configuration . . . . . . .13

10 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

11 Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

12 Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

13 Low-Voltage Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

14 Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

15 Tag Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

16 ISO 9141 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

17 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

18 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . .19

19 Application Schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

List of Figures

Figure 1.Standalone Tag Reader Circuit . . . . . . . . . . . . . . . . . . . 3

Figure 2.Tag Reader Block Diagram . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3.Current Flow When Buffers are Switched Off . . . . . . . . 7

Figure 4.Voltage Regulator Block Diagram . . . . . . . . . . . . . . . . . 8

Figure 5.ISO 9141 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 6.Mode Access Description in

One-Wire Bus Configuration . . . . . . . . . . . . . . . . . . . . 11

Figure 7.Configuration A State Diagram . . . . . . . . . . . . . . . . . . 11

Figure 8.Modes Access Description in

Two-wire Bus Configuration. . . . . . . . . . . . . . . . . . . . . 12

Figure 9.Configuration B State Diagram . . . . . . . . . . . . . . . . . . 12

Figure 10.Configuration C State Diagram . . . . . . . . . . . . . . . . . 13

Figure 11.Low Voltage Reset Waveform . . . . . . . . . . . . . . . . . . 15

Figure 12.Demodulator Parameters Definition. . . . . . . . . . . . . . 17

Figure 13.VSUP, VDD, and Source Internal Circuits . . . . . . . . . 19

Figure 14.GATE Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 15.TD1, TD2, DOUT, and RX Internal Circuits . . . . . . . . 19

Figure 16.AGND Internal Circuits. . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 17.CEXT Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 18.RD Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 19.MODE1, MODE2, and TX Internal Circuits . . . . . . . . 20

Figure 20.LVR Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 21.XTAL2 and XTAL1 Internal Circuits . . . . . . . . . . . . . . 21

Figure 22.AM Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 23.K Internal Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 24.Standalone Configuration with One-Wire Bus . . . . . . 23

Figure 25.Standalone Configuration with Two-Wires Bus . . . . . 24

Figure 26.Direct Connection to a Microcontroller. . . . . . . . . . . . 25

List of Tables

Table 1. Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 2. Thermal Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 3. Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . 4

Table 4. Communication Modes Description. . . . . . . . . . . . . . . 10

Table 5. Supply Current Specifications . . . . . . . . . . . . . . . . . . . 14

Table 6. Voltage Regulator Specifications. . . . . . . . . . . . . . . . . 14

Table 7. Low-Voltage Reset Specifications . . . . . . . . . . . . . . . . 15

Table 8. Oscillator Specifications . . . . . . . . . . . . . . . . . . . . . . . 15

Table 9. Tag Reader Specifications. . . . . . . . . . . . . . . . . . . . . . 16

Table 10.ISO 9141 Interface Specifications . . . . . . . . . . . . . . . . 17

Table 11.Digital I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . 18

MC33690 Standalone Tag Reader Circuit, Rev. 5

Freescale Semiconductor 3

Figure 1. Standalone Tag Reader Circuit

VDD

VBAT

VSUP

GATE

SOURCE

VDD

VSS

TD1

TD2

XTAL1

XTAL2

MODE1

MODE2

DOUT

LVR

Voltage Regulator

CEXT

AGND

Tag Reader

ISO 9141 Interface

VBAT

EXT

10mF

10nF

8MHz

510W

Optional: External N channel MOS required for sourced current > 50mA.

A recommended reference is MMFT 3055VL from Freescale.

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P26

MC33690DWE

Mfr. #:

Buy MC33690DWE

Manufacturer:

NXP / Freescale

Description:

Digital Signal Processors & Controllers - DSP, DSC STAND ALONE TAG READER

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

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MC33690DWE

MC33690DWE

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