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

Analog Input

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

I/O Expansion

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

PWM

PAK-V: Provides 8 channels of pulse width modulation

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

PULSE I/O

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

PS/2

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

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