Analog Integrated Circuit Device Data

Freescale Semiconductor

3

33884

PIN CONNECTIONS

PIN CONNECTIONS

Figure 3. 33884 Pin Connections

Table 1. 33884 Pin Definitions

Pin Number

Pin Name

Formal Name

Definitions

1

VDD

Voltage Power

This pin is 5.0 V logic supply.

2

SO

Serial Output

This pin is the SPI data out.

3

SI

Serial Input

This pin provides data input.

4

SP1

Switch Input One

This pin senses inputs programmed to read switch-to-ground (battery) supply contacts.

5

SG1

Switch-to-Ground Inputs

One

This pin is one of six and are switch-to-ground inputs only.

6

SG2

Switch-to-Ground Inputs

Two

This pin is one of six and are switch-to-ground inputs only.

7

SG3

Switch-to-Ground Inputs

Three

This pin is one of six and are switch-to-ground inputs only.

8

SB1

Switch-to Battery One

This pin is one of two, and senses inputs only.

9

SP2

Switch Input Two

This pin senses inputs programmed to read switch-to-ground (battery) supply contacts.

10

MASL

Master/Slave

This pin identifies which device will be master and which will be slave.

11

VPWR

Voltage Power

This pin is the power source.

12

VSS

Voltage SS

This pin is a ground.

13

RST

Reset

This pin is active low reset input to the device.

14

SYNC

Synchronization

This pin is used by the slave IC during the Polling mode.

15

INT

Interrupt

This pin is an interrupt output from the device.

16

SP3

Switch Input Three

This pin senses inputs programmed to read switch-to-ground (battery) supply contacts.

17

SB2

Switch-to-Battery Two

This pin is one of two, and senses inputs only.

18

SG4

Switch-to-Ground Inputs

Four

This pin is one of six and are switch-to-ground inputs only.

19

SG5

Switch-to-Ground Inputs

Five

This pin is one of six and are switch-to-ground inputs only.

20

SG6

Switch-to-Ground Inputs

Four

This pin is one of six and are switch-to-ground inputs only.

21

SP4

Switch Input One

This pin senses inputs programmed to read switch-to-ground (battery) supply contacts.

22

VBG

Bandgap Voltage

This pin....

SCLK

SG6

SG5

SG4

SB2

SP3

INT

SYNC

RST

CS

VBG

SP4

VDD

SG1

SG2

SG3

SB1

SP2

MASL

VSS

SO

SI

SP1

VPWR

5

6

7

8

9

10

11

12

2

3

4

24

20

19

18

17

16

15

13

23

22

21

14

1