LM8322 - Mobile I/O Companion Supporting Key-Scan

National Semiconductor Corporation

LM8322 Description

LM8322 Mobile I/O Companion Supporting Key-Scan, I/O Expansion, PWM, and ACCESS.bus Host Interface May 2007 LM8322 Mobile I/O Companion Supporting K.
The LM8322 Mobile I/O Companion is a dedicated device to unburden a host processor from scanning a matrix-addressed keypad.

LM8322 Features

* Key Features
* Supports keypad matrices of up to 8 × 12 keys plus 8 special-function (SF) keys for a total of 104 keys. SF keys pull keypad scan inputs directly to ground, rather than connecting to a keypad scan output.
* Supports I2C-compatible ACCESS. bus interface in slave mode up to 400 k

LM8322 Applications

* Mobile phones Personal Digital Assistants (PDAs) Smart handheld devices Personal media players 4.0 Block Diagram 30013620 © 2007 National Semiconductor Corporation 300136 www. national. com LM8322 5.0 Ordering Information NSID LM8322JGR8 LM8322JGR8X NOPB = No PB (No Lead

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Datasheet Details

Part number: LM8322
Manufacturer: National Semiconductor Corporation
File Size: 893.97 KB
Datasheet: LM8322_NationalSemiconductorCorporation.pdf
Description: Mobile I/O Companion Supporting Key-Scan

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Mobile Companion Supporting Key-Scan National Semiconductor Corporation

National Semiconductor Corporation LM8322-like datasheet