Analog Integrated Circuit Device Data

Freescale Semiconductor

3

33970

PIN CONNECTIONS

PIN CONNECTIONS

Figure 3. 33970 Pin Connections

Table 1. 33970 Pin Definitions

A functional description of each pin can be found in the Functional Pin Description section beginning on page 10.

Pin Number

Pin Name

Pin Function

Formal Name

Definition

1

2

3

4

COS0+

COS0

−

SIN0+

SIN0

−

Output

H-Bridge Outputs 0

Each pin is the output pin of a half bridge, designed to source or sink

current.

5–8,

17–20

GND

Ground

Ground

These pins serve as the ground for the source of the low-side output

transistors as well as the logic portion of the device.

9

CS

Input

Chip Select

This pin is connected to a chip select output of a LSI IC.

10

SCLK

Input

Serial Clock

This pin is connected to the SCLK pin of the master device and acts as a

bit clock for the SPI port.

11

SO

Output

Serial Output

This pin is connected to the SPI Serial Data Input pin of the master

device, or to the SI pin of the next device in a daisy chain.

12

SI

Input

Serial Input

This pin is connected to the SPI Serial Data Output pin of the master

device from which it receives output command data.

13

RTZ

Output

Multiplexed Output

This is a multiplexed output pin, for the non-driven coil, during a Return to

Zero (RTZ) event.

14

VDD

Input

Voltage

This SPI and logic power supply input will work with 5.0 V supplies.

15

RST

Input

Reset

This input has an internal active pull-up.

16

VPWR

Input

Battery Voltage

Power supply.

21

22

23

24

SIN1

−

SIN1+

COS1

−

COS1+

Output

H-Bridge Outputs 1

Each of these pins are the output pin of a half bridge, designed to source

or sink current.

COS0+

COS0-

SIN0+

SIN0-

GND

GND

GND

CS

SCLK

SO

SI

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

COS1+

COS1-

SIN1+

SIN1-

GND

GND

GND

VPWR

RST

VDD

RTZ

GND

GND