IRMCF312

2

TABLE OF CONTENTS

1

Overview...................................................................................................................................... 4

2

IRMCF312 Block Diagram and Main Functions ........................................................................ 5

3

Pinout........................................................................................................................................... 7

4

Input/Output of IRMCF312......................................................................................................... 8

4.1

8051 Peripheral Interface Group........................................................................................... 9

4.2

Motion Peripheral Interface Group..................................................................................... 10

4.3

Analog Interface Group ...................................................................................................... 11

4.4

Power Interface Group ........................................................................................................ 12

4.5

Test Interface....................................................................................................................... 12

5

Application Connections ........................................................................................................... 13

6

DC Characteristics ..................................................................................................................... 14

6.1

Absolute Maximum Ratings ............................................................................................... 14

6.2

System Clock Frequency and Power Consumption............................................................ 14

6.3

Digital I/O DC Characteristics............................................................................................ 15

6.4

PLL and Oscillator DC Characteristics............................................................................... 16

6.5

Analog I/O DC Characteristics ........................................................................................... 16

6.6

Analog I/O DC Characteristics ........................................................................................... 17

6.7

Under Voltage Lockout DC Characteristics ....................................................................... 18

6.8

CMEXT and AREF Characteristics.................................................................................... 18

7

AC Characteristics ..................................................................................................................... 19

7.1

PLL AC Characteristics ...................................................................................................... 19

7.2

Analog to Digital Converter AC Characteristics ................................................................ 20

7.3

Op Amp AC Characteristics ............................................................................................... 21

7.4

Op Amp AC Characteristics ............................................................................................... 21

7.5

SYNC to SVPWM and A/D Conversion AC Timing......................................................... 22

7.6

GATEKILL to SVPWM AC Timing.................................................................................. 23

7.7

Interrupt AC Timing ........................................................................................................... 23

7.8

I2C AC Timing .................................................................................................................... 24

7.9

SPI AC Timing.................................................................................................................... 25

7.9.1

SPI Write AC timing .................................................................................................... 25

7.9.2

SPI Read AC Timing.................................................................................................... 26

7.10

UART AC Timing ........................................................................................................... 27

7.11

CAPTURE Input AC Timing .......................................................................................... 28

7.12

JTAG AC Timing ............................................................................................................ 29

8

Pin List....................................................................................................................................... 30

9

Package Dimensions.................................................................................................................. 34

10

Part Marking Information....................................................................................................... 35