Which PAK?

With so many PAKs to choose from, a common question is which PAK do I need?

Here's a breakdown of the PAKs by function:

Floating Point Math

PAK-I: Basic 32-bit floating point math

PAK-II: Floating point math (32-bit) with logarithms and trig functions

PAK-IX: Same as the PAK-II but with 5 A/D inputs

PAK-XII: Easy to use floating point math coprocessor with 6 A/D inputs and analog comparator

PAK-IX: Same as the PAK-II but with 5 A/D inputs

PAK-X: Reads analog data and compares to limits

PAK-XII: Easy to use floating point math coprocessor with 6 A/D inputs and analog comparator

PAK-III: Extra concurrent I/O (8-bit)

PAK-IV: Extra concurrent I/O (16-bit)

GP-3: Add digital/analog I/O to PC

PAK-V: Provides 8 channels of pulse width modulation

GP-6: PAK-V on a PC board with RS232 conversion and power supply

PAK-VII: Reads 8 channels of pulse input

PAK-VIII: Produces 8 channels of pulse output

PicoPAK-VIII: Controls a single servo

GP-4: Board level kit similar to PAK-VIII

PAK-VI: Converts a keyboard or mouse to RS-232

GP-2: Board level equivalent of a PAK-VI

PAK-XI: Reads X and Y position from PS/2 mouse

GP-5: Board level kit similar to PAK-XI

The following comparison chart shows more detailed information about each PAK:

PAK	Description	Typical uses	Interface
I	Floating point coprocessor	Conversion to engineering units, curve fitting	PAK
II	Floating point coprocessor	Formulae where logarithms or trig functions required; speed-critical applications	PAK
III	8-bit I/O coprocessor	Expanding processor I/O; EEPROM storage	PAK
IV	16-bit I/O coprocessor	Significant I/O expansion; RAM storage	PAK
V	PWM coprocessor	Controlling motor speed or light intensity; DAC applications	Serial
VI	PS/2 keyboard interface	Any place you want to read a PS/2 keyboard (or mouse)	Serial
VII	Pulse input coprocessor	Measuring resistive/capacitive sensors; tachometers, time keeping	PAK
VIII	Pulse output coprocessor	Controlling servos, high-resolution PWM	PAK
IX	Floating point A/D	Reading analog sensors and performing computations on the values	PAK
X	Data Acquisition	Reads analog inputs, compares them to limits, and tracks high and low values	Serial
XI	Position Sensor	Reads X and Y position using PS/2 mouse	Serial
XII	Floating point A/D	Reading analog sensors and performing computations on the values (simplified usage)	Serial